UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

BFS ↔ GLASGOW

In the twelve months from July 2025 to June 2026, 15.8% of 1,179 movements arriving into BFS were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.

Put the other way round, 84.2% of 1,179 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 295 crossed the three-hour mark. Lower is better on every figure on this page. These numbers describe what happened on the route; they are not a prediction for any individual flight.

Definitions, denominators and limits
  • “Disrupted” means an arrival more than fifteen minutes late or a short-notice cancellation. The denominator is operated movements plus short-notice cancellations.
  • Arrivals into the UK airport only; all published carriers.
  • Crossing three hours is one condition for compensation, but monthly data cannot establish any individual passenger’s rights.
  • Delay cause is not published in the open data.
  • Source: CAA punctuality statistics · snapshot 17/08/2026 10:24 · method route-record-v2.1.

0 operations (0.00%) excluded because their published percentages could not be reconciled to whole numbers. Excluded operations enter neither the numerator nor the denominator. Outcome figures and comparisons are unavailable when the excluded share exceeds fifteen percent.

The four numbers at a glance

In the twelve months from July 2025 to June 2026, 15.8% of 1,179 movements were disrupted and 0.5% of 1,179 movements were cancelled at short notice.

When a flight was late, it was typically late by the range shown below. The delay is given as a range, not a single number, because the regulator rounds its published percentages and never says how many flights landed exactly on time.

Disruption shareShort-notice cancellationsAverage delay among delayed flights only — boundsOperations
15.8% of 1,179 movements0.5% of 1,179 movements29.2–66.9 min; N of delayed flights=180–3721,179
Definitions, denominators and limits

The bounds account for CAA rounding and the unknown number of zero delays. A point average across all operated movements, including punctual ones, would answer a different question and is not used here.

When it is late, how late is it?

Most delays here are short. The ladder below shows how many arrivals crossed each threshold, from a quarter of an hour up to six hours; each rung can only be smaller than the one above it.

Cancellations are counted separately: 0.5% of 1,179 movements. “One in N” means how many arrivals you would typically see between events at that level.

Delay threshold ladder; count and share of known operations15 min15.3%30 min10.6%60 min5.2%120 min1.3%180 min0.3%360 min0.1%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min15.3% of 1,179 movements1806.5
>30 min10.6% of 1,179 movements1259.4
>60 min5.2% of 1,179 movements6119.3
>120 min1.3% of 1,179 movements1578.6
>180 min0.3% of 1,179 movements4294.8
>360 min0.1% of 1,179 movements11,179.0
Definitions, denominators and limits

CAA counts delays strictly greater than each threshold, so exactly three hours is inseparable from the previous bucket. The ladder describes the archive, not a forecast.

Slightly late, or occasionally a disaster?

This route runs late less often than most, but when it does go wrong it tends to go badly wrong: its long delays are heavier than on the typical UK route.

The histogram below counts every recorded arrival, from more than fifteen minutes early through to more than six hours late. A tall bar near the middle and a thin right-hand tail is the healthy shape.

Nine delay buckets, minutes; share of all recorded operations>15 early21718.4%15–1 early58449.5%0–15 late19216.3%16–30554.7%31–60645.4%61…120463.9%121…180110.9%181…36030.3%>36010.1%D=1,179
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0336; corpus median 0.0217; 2056 routes in the corpus. The shape is compared conditionally among delays; the class name does not measure absolute frequency. Histogram counts and shares cover all recorded operations including unmatched records; reconstructed uniquely.

Has this route got better or worse since 2018?

Best month: Nov 2021, no events in 69 movements. Worst month: Apr 2019, 100.0% of 90 movements.

The line traces every month in the archive; lower is better. Gaps are months with no published data, never zeros. The 2020 and 2021 readings reflect the pandemic, not normal service.

Monthly disruption share; gaps mean no published dataJan 2018: 11.6%; sample: 952018Feb 2018: 17.0%; sample: 88Mar 2018: 25.0%; sample: 96Apr 2018: 15.9%; sample: 88May 2018: 18.5%; sample: 92Jun 2018: 12.8%; sample: 86Jul 2018: 21.1%; sample: 76Aug 2018: 8.0%; sample: 75Sep 2018: 11.2%; sample: 89Oct 2018: 21.3%; sample: 94Nov 2018: 12.4%; sample: 105Dec 2018: 17.8%; sample: 107Jan 2019: 9.9%; sample: 912019Feb 2019: 10.2%; sample: 88Mar 2019: 14.4%; sample: 97Apr 2019: 100.0%; sample: 90May 2019: 10.5%; sample: 95Jun 2019: 18.8%; sample: 85Jul 2019: 16.0%; sample: 75Aug 2019: 13.3%; sample: 75Sep 2019: 13.2%; sample: 91Oct 2019: 11.7%; sample: 94Nov 2019: 4.9%; sample: 103Dec 2019: 19.4%; sample: 103Jan 2020: 11.8%; sample: 932020Feb 2020: 20.2%; sample: 89Mar 2020: 10.3%; sample: 68Apr 2020: suppressed: fewer than twenty movements×May 2020: suppressed: fewer than twenty movements×Jun 2020: suppressed: fewer than twenty movements×Jul 2020: 0.0%; sample: 31Aug 2020: 8.7%; sample: 46Sep 2020: 0.0%; sample: 32Oct 2020: 0.0%; sample: 49Nov 2020: 4.3%; sample: 23Dec 2020: 10.0%; sample: 40Jan 2021: 0.0%; sample: 202021Feb 2021: suppressed: fewer than twenty movements×Mar 2021: 0.0%; sample: 21Apr 2021: suppressed: fewer than twenty movements×May 2021: 5.0%; sample: 40Jun 2021: 2.0%; sample: 49Jul 2021: 3.6%; sample: 83Aug 2021: 2.4%; sample: 84Sep 2021: 2.3%; sample: 88Oct 2021: 6.1%; sample: 99Nov 2021: 0.0%; sample: 69Dec 2021: 11.0%; sample: 73Jan 2022: 1.5%; sample: 652022Feb 2022: 19.2%; sample: 73Mar 2022: 9.3%; sample: 86Apr 2022: 14.4%; sample: 97May 2022: 22.9%; sample: 118Jun 2022: 29.2%; sample: 96Jul 2022: 37.1%; sample: 89Aug 2022: 25.0%; sample: 88Sep 2022: 29.4%; sample: 136Oct 2022: 26.4%; sample: 140Nov 2022: 6.2%; sample: 64Dec 2022: 24.7%; sample: 77Jan 2023: 7.7%; sample: 782023Feb 2023: 8.1%; sample: 74Mar 2023: 20.4%; sample: 93Apr 2023: 16.5%; sample: 109May 2023: 17.8%; sample: 129Jun 2023: 37.7%; sample: 122Jul 2023: 34.5%; sample: 116Aug 2023: 22.8%; sample: 114Sep 2023: 42.1%; sample: 121Oct 2023: 30.7%; sample: 127Nov 2023: 9.1%; sample: 99Dec 2023: 26.3%; sample: 99Jan 2024: 19.4%; sample: 722024Feb 2024: 14.9%; sample: 94Mar 2024: 18.6%; sample: 102Apr 2024: 7.2%; sample: 111May 2024: 17.3%; sample: 133Jun 2024: 23.5%; sample: 115Jul 2024: 16.3%; sample: 92Aug 2024: 20.2%; sample: 94Sep 2024: 33.1%; sample: 133Oct 2024: 17.8%; sample: 129Nov 2024: 18.3%; sample: 82Dec 2024: 35.5%; sample: 93Jan 2025: 27.6%; sample: 762025Feb 2025: 19.8%; sample: 86Mar 2025: 6.1%; sample: 98Apr 2025: 1.8%; sample: 112May 2025: 5.7%; sample: 106Jun 2025: 8.8%; sample: 113Jul 2025: 19.4%; sample: 93Aug 2025: 7.6%; sample: 92Sep 2025: 15.8%; sample: 120Oct 2025: 17.1%; sample: 117Nov 2025: 10.7%; sample: 75Dec 2025: 19.1%; sample: 94Jan 2026: 24.4%; sample: 782026Feb 2026: 18.7%; sample: 91Mar 2026: 15.5%; sample: 103Apr 2026: 7.6%; sample: 105May 2026: 15.5%; sample: 110Jun 2026: 18.8%; sample: 101Pandemic regime Jun 2020Summer 2022 breakdown Jul 2022NATS system failure Aug 2023Heathrow fire closure Mar 2025100%0%
Every month since 2018, including gaps and suppressed cells
MonthDisruption on arrivals
Jan 201811.6% of 95 movements
Feb 201817.0% of 88 movements
Mar 201825.0% of 96 movements
Apr 201815.9% of 88 movements
May 201818.5% of 92 movements
Jun 201812.8% of 86 movements
Jul 201821.1% of 76 movements
Aug 20188.0% of 75 movements
Sep 201811.2% of 89 movements
Oct 201821.3% of 94 movements
Nov 201812.4% of 105 movements
Dec 201817.8% of 107 movements
Jan 20199.9% of 91 movements
Feb 201910.2% of 88 movements
Mar 201914.4% of 97 movements
Apr 2019100.0% of 90 movements
May 201910.5% of 95 movements
Jun 201918.8% of 85 movements
Jul 201916.0% of 75 movements
Aug 201913.3% of 75 movements
Sep 201913.2% of 91 movements
Oct 201911.7% of 94 movements
Nov 20194.9% of 103 movements
Dec 201919.4% of 103 movements
Jan 202011.8% of 93 movements
Feb 202020.2% of 89 movements
Mar 202010.3% of 68 movements
Apr 2020suppressed: fewer than twenty movements
May 2020suppressed: fewer than twenty movements
Jun 2020suppressed: fewer than twenty movements
Jul 2020no events in 31 movements — small sample, not ranked
Aug 20208.7% of 46 movements — small sample, not ranked
Sep 2020no events in 32 movements — small sample, not ranked
Oct 2020no events in 49 movements — small sample, not ranked
Nov 20204.3% of 23 movements — small sample, not ranked
Dec 202010.0% of 40 movements — small sample, not ranked
Jan 2021no events in 20 movements — small sample, not ranked
Feb 2021suppressed: fewer than twenty movements
Mar 2021no events in 21 movements — small sample, not ranked
Apr 2021suppressed: fewer than twenty movements
May 20215.0% of 40 movements — small sample, not ranked
Jun 20212.0% of 49 movements — small sample, not ranked
Jul 20213.6% of 83 movements
Aug 20212.4% of 84 movements
Sep 20212.3% of 88 movements
Oct 20216.1% of 99 movements
Nov 2021no events in 69 movements
Dec 202111.0% of 73 movements
Jan 20221.5% of 65 movements
Feb 202219.2% of 73 movements
Mar 20229.3% of 86 movements
Apr 202214.4% of 97 movements
May 202222.9% of 118 movements
Jun 202229.2% of 96 movements
Jul 202237.1% of 89 movements
Aug 202225.0% of 88 movements
Sep 202229.4% of 136 movements
Oct 202226.4% of 140 movements
Nov 20226.2% of 64 movements
Dec 202224.7% of 77 movements
Jan 20237.7% of 78 movements
Feb 20238.1% of 74 movements
Mar 202320.4% of 93 movements
Apr 202316.5% of 109 movements
May 202317.8% of 129 movements
Jun 202337.7% of 122 movements
Jul 202334.5% of 116 movements
Aug 202322.8% of 114 movements
Sep 202342.1% of 121 movements
Oct 202330.7% of 127 movements
Nov 20239.1% of 99 movements
Dec 202326.3% of 99 movements
Jan 202419.4% of 72 movements
Feb 202414.9% of 94 movements
Mar 202418.6% of 102 movements
Apr 20247.2% of 111 movements
May 202417.3% of 133 movements
Jun 202423.5% of 115 movements
Jul 202416.3% of 92 movements
Aug 202420.2% of 94 movements
Sep 202433.1% of 133 movements
Oct 202417.8% of 129 movements
Nov 202418.3% of 82 movements
Dec 202435.5% of 93 movements
Jan 202527.6% of 76 movements
Feb 202519.8% of 86 movements
Mar 20256.1% of 98 movements
Apr 20251.8% of 112 movements
May 20255.7% of 106 movements
Jun 20258.8% of 113 movements
Jul 202519.4% of 93 movements
Aug 20257.6% of 92 movements
Sep 202515.8% of 120 movements
Oct 202517.1% of 117 movements
Nov 202510.7% of 75 movements
Dec 202519.1% of 94 movements
Jan 202624.4% of 78 movements
Feb 202618.7% of 91 movements
Mar 202615.5% of 103 movements
Apr 20267.6% of 105 movements
May 202615.5% of 110 movements
Jun 202618.8% of 101 movements

What did the big disruptions actually do here?

Each named event below is shown against this route’s own baseline for the twelve months before it, and against how long the route took to get back to that baseline.

A month worse than baseline is not proof the named event caused it: the open data carry no delay-cause field at all. Some events sit near the edge of the archive, which limits how long a recovery can be traced.

EventDirectionDisruption that monthBaseline beforeReturn to baseline
Pandemic regime · Jun 2020Arrivalssuppressed: fewer than twenty movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Pandemic regime · Jun 2020Departuressuppressed: fewer than twenty movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Arrivals37.1% of 89 movements10.1% across 1,031 flightsreturned after 4 months
Summer 2022 breakdown · Jul 2022Departures31.5% of 89 movements12.2% across 1,027 flightsreturned after 4 months
NATS system failure · Aug 2023Arrivals22.8% of 114 movements21.2% across 1,226 flightsreturned after 3 months
NATS system failure · Aug 2023Departures31.6% of 114 movements24.7% across 1,220 flightsreturned after 3 months
Heathrow fire closure · Mar 2025Arrivals6.1% of 98 movements21.3% across 1,246 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures9.2% of 98 movements20.8% across 1,246 flightsreturned the next month
Definitions, denominators and limits

The baseline is the unweighted mean share over the twelve preceding calendar months. The return window is the following eight months, up to the end of the archive. Return means the first observed value at or below the baseline; it is not the duration of the disruption itself. If the event month is already below the baseline, counting still starts the month after. Gaps and suppressed cells are not treated as zeros or as recovery.

Which time of year has historically been hardest?

September has historically been the hardest month on this route: in a typical September, 22.6% of arrivals were disrupted, measured across 6 Septembers in the archive. November has been the calmest, at 9.9% across 6 Novembers.

Even September has ranged from 11.2% to 42.1% in different years, so this is a record of what happened, not a forecast of what will. Lower is better throughout.

Each cell is one calendar month of one year; the number is the share of that month’s arrivals that were disrupted. Darker means worse. A blank cell means no published data, not zero.

Seasonality: calendar month by year; share and nJanFebMarAprMayJunJulAugSepOctNovDec20199.9% of 91 movements10.2% of 88 movements14.4% of 97 movements100.0% of 90 movements10.5% of 95 movements18.8% of 85 movements16.0% of 75 movements13.3% of 75 movements13.2% of 91 movements11.7% of 94 movements4.9% of 103 movements19.4% of 103 movements202011.8% of 93 movements20.2% of 89 movements10.3% of 68 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementsno events in 31 movements †8.7% of 46 movements †no events in 32 movements †no events in 49 movements †4.3% of 23 movements †10.0% of 40 movements †2021no events in 20 movements †suppressed: fewer than twenty movementsno events in 21 movements †suppressed: fewer than twenty movements5.0% of 40 movements †2.0% of 49 movements †3.6% of 83 movements2.4% of 84 movements2.3% of 88 movements6.1% of 99 movementsno events in 69 movements11.0% of 73 movements20221.5% of 65 movements19.2% of 73 movements9.3% of 86 movements14.4% of 97 movements22.9% of 118 movements29.2% of 96 movements37.1% of 89 movements25.0% of 88 movements29.4% of 136 movements26.4% of 140 movements6.2% of 64 movements24.7% of 77 movements20237.7% of 78 movements8.1% of 74 movements20.4% of 93 movements16.5% of 109 movements17.8% of 129 movements37.7% of 122 movements34.5% of 116 movements22.8% of 114 movements42.1% of 121 movements30.7% of 127 movements9.1% of 99 movements26.3% of 99 movements202419.4% of 72 movements14.9% of 94 movements18.6% of 102 movements7.2% of 111 movements17.3% of 133 movements23.5% of 115 movements16.3% of 92 movements20.2% of 94 movements33.1% of 133 movements17.8% of 129 movements18.3% of 82 movements35.5% of 93 movements202527.6% of 76 movements19.8% of 86 movements6.1% of 98 movements1.8% of 112 movements5.7% of 106 movements8.8% of 113 movements19.4% of 93 movements7.6% of 92 movements15.8% of 120 movements17.1% of 117 movements10.7% of 75 movements19.1% of 94 movements202624.4% of 78 movements18.7% of 91 movements15.5% of 103 movements7.6% of 105 movements15.5% of 110 movements18.8% of 101 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan11.6%1.5–27.6%7 months, 555 flights
Feb17.0%8.1–19.8%7 months, 594 flights
Mar15.5%6.1–25.0%7 months, 675 flights
Apr14.4%1.8–100.0%7 months, 712 flights
May17.3%5.7–22.9%7 months, 783 flights
Jun18.8%8.8–37.7%7 months, 718 flights
Jul20.2%16.0–37.1%6 months, 541 flights
Aug16.8%7.6–25.0%6 months, 538 flights
Sep22.6%11.2–42.1%6 months, 690 flights
Oct19.6%11.7–30.7%6 months, 701 flights
Nov9.9%4.9–18.3%6 months, 528 flights
Dec22.0%17.8–35.5%6 months, 573 flights
Definitions, denominators and limits

The matrix shows the last eight calendar years, including an incomplete final year; the start of the archive is kept in the history above. Seasonal summaries use the whole available archive, excluding the pandemic regime 2020–2021; this is an observed range, not a forecast. Zero events, missing data and suppressed cells are marked separately. † marks a small sample, described but not ranked. For ranges the colour follows the upper bound.

Which airline has the better record here?

Only one carrier published enough flights here to report: Easyjet Uk Ltd, 15.8% of 1,179 movements disrupted.

Figures cover arrivals, July 2025 to June 2026; lower is better in every column. Carriers with fewer than twenty published flights are suppressed rather than shown as zero. The page makes no ranking: the operations behind these shares are not matched for aircraft, time of day or season.

Observed disruption share by optionEasyjet Uk15.8% of 1,179 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Ba Cityflyersuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Copenhagen Airtaxisuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Easyjet Airlinesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Easyjet Uk1,17915.8% of 1,179 movements0.5% of 1,179 movements0.3% of 1,179 movementsdescriptive comparison
Emerald Airlines (Ireland)suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Emerald Airlines Uksuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Flybesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Jet2.Comsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Jota Aviationsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Loganairsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ryanairsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Vistajet Maltasuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed

The noise check is a descriptive approximation assuming independent operations. Delay correlation and mix differences are not estimated; no ranking is derived.

Would another UK airport have been better?

Among UK airports flying to this city with enough flights to publish, BHX had the lowest disruption share at 9.0% of 643 movements and BHD the highest at 24.1% of 644 movements. This route sits at 15.8% of 1,179 movements.

Each figure is arrivals into that UK airport, all carriers combined, over the same twelve months. It is a historical record, not a recommendation about where to fly from, and it says nothing about getting to or from each airport on the ground.

Observed disruption share by optionBhd ↔ Glasgow24.1% of 644 flightsBhx ↔ Glasgow9.0% of 643 flightsBrs ↔ Glasgow22.7% of 1,027 flightsJer ↔ Glasgow19.2% of 156 flightsLcy ↔ Glasgow14.7% of 1,391 flightsLgw ↔ Glasgow19.9% of 1,717 flightsLhr ↔ Glasgow15.2% of 3,553 flightsLtn ↔ Glasgow21.7% of 1,025 flights
Airport comparison table: operations, cancellations, three-hour delays and data quality
Other UK airport to the same cityOperationsDisruptionCancellations>180 minData quality
Abz ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Bhd ↔ Glasgow64424.1% of 644 movements0.8% of 644 movements1.4% of 644 movementsdescriptive comparison
Bhx ↔ Glasgow6439.0% of 643 movements0.6% of 643 movements0.2% of 643 movementsdescriptive comparison
Boh ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Brs ↔ Glasgow1,02722.7% of 1,027 movements1.0% of 1,027 movements0.1% of 1,027 movementsdescriptive comparison
Cwl ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Doncaster-Sheffield ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Edi ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ema ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ext ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Iom ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Jer ↔ Glasgow15619.2% of 156 movements0.6% of 156 movements0.6% of 156 movementsdescriptive comparison
Lba ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lcy ↔ Glasgow1,39114.7% of 1,391 movements1.6% of 1,391 movements0.4% of 1,391 movementsdescriptive comparison
Lgw ↔ Glasgow1,71719.9% of 1,717 movements0.2% of 1,717 movements0.2% of 1,717 movementsdescriptive comparison
Lhr ↔ Glasgow3,55315.2% of 3,553 movements1.2% of 3,553 movements0.1% of 3,553 movementsdescriptive comparison
Lpl ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ltn ↔ Glasgow1,02521.7% of 1,025 movements0.4% of 1,025 movements0.6% of 1,025 movementsdescriptive comparison
Man ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Mme ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ncl ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Sen ↔ Glasgowsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Sou ↔ Glasgow32415.4% of 324 movements0.3% of 324 movementsno events in 324 movementsdescriptive comparison
Stn ↔ Glasgow92212.7% of 922 movements0.2% of 922 movements0.2% of 922 movementsdescriptive comparison

Does the direction you are flying change anything?

Barely: arrivals into BFS ran 15.8% of 1,179 movements disrupted, departures 15.4% of 1,179 movements.

It matters legally as well as practically: a departure from the UK and an arrival into the UK on a UK or EU carrier fall under different conditions, and a departure delay does not establish a late arrival at your final destination.

Arrivals and departures side by side
DirectionDisruptionCancellationsOver three hours
Arrivals into BFS15.8% of 1,179 movements0.5% of 1,179 movements0.3% of 1,179 movements
Departures from BFS15.4% of 1,179 movements0.4% of 1,179 movements0.6% of 1,179 movements
Definitions, denominators and limits

CAA conditions on delays and cancellations.

How many flights here crossed the three-hour mark?

The table below counts arrivals and departures that ran more than three hours late — the threshold that is one of the conditions for compensation — across the whole archive and within the last six years.

The pound figure beside each count is arithmetic, not money anyone received: it is the count multiplied by the maximum statutory amount for this distance band. Whether any of those flights actually qualified is not knowable from this data.

DirectionWindowFlights over three hoursArithmetic statutory ceiling
ArrivalsWhole archive · Jan 2018–Jun 202628 flights out of 8,75628 × £220 = £6,160
ArrivalsLast 72 months · Jul 2020–Jun 202622 flights out of 6,31222 × £220 = £4,840
DeparturesWhole archive · Jan 2018–Jun 202637 flights out of 8,74837 × £220 = £8,140
DeparturesLast 72 months · Jul 2020–Jun 202628 flights out of 6,30328 × £220 = £6,160
Definitions, denominators and limits

Full formula: the count is the sum of the two tail buckets across months, carriers and service types in one direction; the ceiling is that count multiplied by the maximum statutory amount for the distance band. The condition is: if every such delay had been the carrier's fault and a claim had been filed on every one of them.

This is conditional arithmetic over operations: passenger numbers, legal applicability and the number of claims are all unknown. For departures it is an arithmetic scenario only, because arrival at the final point is not observed. For long routes the maximum ceiling is used; any reduction in the payable amount is not calculated.

The archive window is counted from the last month of data, not from today: this is not a limitation check for an individual case. The CAA states six years for England and Wales and five for Scotland. CAA: time limits and how to complain. Information, not a legal service.

The facts about this route

Route reference table: codes, distance, frequency, archive span
FieldValue
UK airportBELFAST INTERNATIONAL · BFS
Final point / countryGLASGOW / UNITED KINGDOM
Final point codesGLA / EGPF
Great-circle distance176 km
Maximum statutory amount for the band£220
Average operated arrivals per day3.21
Presence in the latest twelve-month windowoperations present in every month of the latest twelve-month window
First and last active monthJan 2018–Jun 2026
Months with operations in the archive100

origin_destination is the final point of the CAA service, not evidence of a nonstop connection. The distance joins the coordinates of the named airports; the actual track is unknown. Frequency describes published operations.

What this data cannot tell you

Delay cause is not published in the regulator's open data. Monthly aggregates describe a population, not a specific flight. Cells below twenty operations are suppressed; twenty to forty-nine are descriptive only and not ranked. Arrivals and departures do not add up. Cancellations are short-notice only, by the CAA definition. A movement is not the same as a scheduled flight.

0 operations (0.00%) excluded because their published percentages could not be reconciled to whole numbers. Excluded operations enter neither the numerator nor the denominator. Outcome figures and comparisons are unavailable when the excluded share exceeds fifteen percent.

Data-quality counters for this route

Zero observed events does not mean zero risk. Operator coverage against the Summary file is not established in this record; comparisons are limited to the published population.

Unmatched records: 0; all recorded operations: 1,179; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

15.8% of 1,179 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

0.5% of 1,179 movements in the same window.

How many delays crossed three hours?

0.3% of 1,179 movements in the same window; these are observed movements, not a count of claims.

What does the delay distribution look like?

rare but severe. The class compares the tail with short delays across routes in the corpus.

What distance is used?

176 km, great-circle.

Can compensation entitlement be established here?

No. The cause and the circumstances of an individual flight are unknown. Official CAA conditions.

Why do some cells say "no data"?

That month is absent from the published series. Small cells carry a separate "suppressed" marker; a gap is never replaced by a zero.

How this was calculated

Dataset version, input hashes and reconstruction rules

Dataset version: 396da8dde2874f14; method route-record-v2.1.

Versioned register of every number and the entity map · Input hashes · Correction log · Reconstruction and formulas.

Reconstruction: integer counts inside the rounding bounds of shares of D, summing to M. Ambiguity is preserved as a range of feasible counts; non-convergence stays in quarantine. The map of codes and coordinates is pinned by hash alongside the data. Raw CSV files are not included in the published output.

Your trip has already gone wrong — what now?

The official route to complain

Contact the airline first, then the relevant ADR body or the CAA. The right to care is assessed separately from compensation; time limits and circumstances are checked case by case. CAA: how to complain.

Reconstruction and formulas

Open the versioned claim register

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