UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

LCY ↔ GLASGOW

In the twelve months from July 2025 to June 2026, 14.7% of 1,391 movements arriving into LCY were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.

Put the other way round, 85.3% of 1,391 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 278 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, 14.7% of 1,391 movements were disrupted and 1.6% of 1,391 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
14.7% of 1,391 movements1.6% of 1,391 movements25.8–64.4 min; N of delayed flights=183–4041,391
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: 1.6% of 1,391 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 min13.2%30 min7.5%60 min3.6%120 min1.2%180 min0.4%360 min0.0%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min13.2% of 1,391 movements1837.6
>30 min7.5% of 1,391 movements10413.4
>60 min3.6% of 1,391 movements5027.8
>120 min1.2% of 1,391 movements1781.8
>180 min0.4% of 1,391 movements5278.2
>360 minno events in 1,391 movements0no observed events, which is not zero risk
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 early29821.4%15–1 early66748.0%0–15 late22115.9%16–30795.7%31–60543.9%61…120332.4%121…180120.9%181…36050.4%>36000.0%D=1,391
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0376; 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, 1.2% of 84 movements. Worst month: Jun 2023, 34.5% of 116 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: 19.2%; sample: 1252018Feb 2018: 31.3%; sample: 134Mar 2018: 19.9%; sample: 146Apr 2018: 20.3%; sample: 158May 2018: 22.4%; sample: 170Jun 2018: 20.8%; sample: 144Jul 2018: 20.7%; sample: 135Aug 2018: 18.2%; sample: 132Sep 2018: 13.2%; sample: 152Oct 2018: 18.9%; sample: 175Nov 2018: suppressed: fewer than twenty movements×Dec 2018: suppressed: fewer than twenty movements×Jan 2019: 10.8%; sample: 1302019Feb 2019: 27.6%; sample: 134Mar 2019: 26.2%; sample: 141Apr 2019: 15.0%; sample: 147May 2019: suppressed: fewer than twenty movements×Jun 2019: suppressed: fewer than twenty movements×Jul 2019: suppressed: fewer than twenty movements×Aug 2019: suppressed: fewer than twenty movements×Sep 2019: suppressed: fewer than twenty movements×Oct 2019: suppressed: fewer than twenty movements×Nov 2019: suppressed: fewer than twenty movements×Dec 2019: suppressed: fewer than twenty movements×Jan 2020: 12.8%; sample: 1482020Feb 2020: 23.0%; sample: 152Mar 2020: 21.8%; sample: 119Apr 2020: suppressed: fewer than twenty movements×May 2020: suppressed: fewer than twenty movements×Jun 2020: suppressed: fewer than twenty movements×Jul 2020: suppressed: fewer than twenty movements×Aug 2020: suppressed: fewer than twenty movements×Sep 2020: 4.0%; sample: 25Oct 2020: suppressed: fewer than twenty movements×Nov 2020: suppressed: fewer than twenty movements×Dec 2020: suppressed: fewer than twenty movements×Jan 2021: suppressed: fewer than twenty movements×2021Feb 2021: suppressed: fewer than twenty movements×Mar 2021: suppressed: fewer than twenty movements×Apr 2021: no data×May 2021: suppressed: fewer than twenty movements×Jun 2021: 4.4%; sample: 45Jul 2021: 4.9%; sample: 41Aug 2021: 5.1%; sample: 39Sep 2021: 3.3%; sample: 60Oct 2021: 6.2%; sample: 64Nov 2021: 1.2%; sample: 84Dec 2021: 3.8%; sample: 78Jan 2022: 3.2%; sample: 312022Feb 2022: 15.3%; sample: 59Mar 2022: 6.7%; sample: 104Apr 2022: 3.4%; sample: 119May 2022: 13.8%; sample: 130Jun 2022: 22.9%; sample: 109Jul 2022: 23.5%; sample: 102Aug 2022: 7.7%; sample: 104Sep 2022: 20.7%; sample: 111Oct 2022: 6.0%; sample: 116Nov 2022: 15.3%; sample: 131Dec 2022: 27.9%; sample: 104Jan 2023: 6.5%; sample: 1072023Feb 2023: 11.0%; sample: 118Mar 2023: 17.2%; sample: 128Apr 2023: 8.6%; sample: 116May 2023: 13.3%; sample: 128Jun 2023: 34.5%; sample: 116Jul 2023: 11.2%; sample: 107Aug 2023: 11.4%; sample: 114Sep 2023: 25.6%; sample: 121Oct 2023: 19.0%; sample: 137Nov 2023: 11.5%; sample: 139Dec 2023: 19.3%; sample: 109Jan 2024: 11.6%; sample: 1122024Feb 2024: 9.5%; sample: 116Mar 2024: 9.8%; sample: 122Apr 2024: 7.1%; sample: 126May 2024: 17.7%; sample: 124Jun 2024: 16.5%; sample: 97Jul 2024: 24.8%; sample: 101Aug 2024: 17.9%; sample: 95Sep 2024: 17.9%; sample: 117Oct 2024: 17.2%; sample: 134Nov 2024: 14.3%; sample: 126Dec 2024: 26.5%; sample: 102Jan 2025: 10.4%; sample: 1062025Feb 2025: 9.6%; sample: 115Mar 2025: 12.3%; sample: 122Apr 2025: 8.3%; sample: 108May 2025: 8.1%; sample: 111Jun 2025: 23.1%; sample: 104Jul 2025: 11.7%; sample: 103Aug 2025: 20.8%; sample: 96Sep 2025: 22.4%; sample: 116Oct 2025: 10.3%; sample: 126Nov 2025: 12.5%; sample: 128Dec 2025: 13.0%; sample: 100Jan 2026: 9.3%; sample: 1082026Feb 2026: 6.8%; sample: 117Mar 2026: 21.6%; sample: 125Apr 2026: 8.3%; sample: 132May 2026: 21.1%; sample: 123Jun 2026: 19.7%; sample: 117Pandemic 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 201819.2% of 125 movements
Feb 201831.3% of 134 movements
Mar 201819.9% of 146 movements
Apr 201820.3% of 158 movements
May 201822.4% of 170 movements
Jun 201820.8% of 144 movements
Jul 201820.7% of 135 movements
Aug 201818.2% of 132 movements
Sep 201813.2% of 152 movements
Oct 201818.9% of 175 movements
Nov 2018suppressed: fewer than twenty movements
Dec 2018suppressed: fewer than twenty movements
Jan 201910.8% of 130 movements
Feb 201927.6% of 134 movements
Mar 201926.2% of 141 movements
Apr 201915.0% of 147 movements
May 2019suppressed: fewer than twenty movements
Jun 2019suppressed: fewer than twenty movements
Jul 2019suppressed: fewer than twenty movements
Aug 2019suppressed: fewer than twenty movements
Sep 2019suppressed: fewer than twenty movements
Oct 2019suppressed: fewer than twenty movements
Nov 2019suppressed: fewer than twenty movements
Dec 2019suppressed: fewer than twenty movements
Jan 202012.8% of 148 movements
Feb 202023.0% of 152 movements
Mar 202021.8% of 119 movements
Apr 2020suppressed: fewer than twenty movements
May 2020suppressed: fewer than twenty movements
Jun 2020suppressed: fewer than twenty movements
Jul 2020suppressed: fewer than twenty movements
Aug 2020suppressed: fewer than twenty movements
Sep 20204.0% of 25 movements — small sample, not ranked
Oct 2020suppressed: fewer than twenty movements
Nov 2020suppressed: fewer than twenty movements
Dec 2020suppressed: fewer than twenty movements
Jan 2021suppressed: fewer than twenty movements
Feb 2021suppressed: fewer than twenty movements
Mar 2021suppressed: fewer than twenty movements
Apr 2021no data
May 2021suppressed: fewer than twenty movements
Jun 20214.4% of 45 movements — small sample, not ranked
Jul 20214.9% of 41 movements — small sample, not ranked
Aug 20215.1% of 39 movements — small sample, not ranked
Sep 20213.3% of 60 movements
Oct 20216.2% of 64 movements
Nov 20211.2% of 84 movements
Dec 20213.8% of 78 movements
Jan 20223.2% of 31 movements — small sample, not ranked
Feb 202215.3% of 59 movements
Mar 20226.7% of 104 movements
Apr 20223.4% of 119 movements
May 202213.8% of 130 movements
Jun 202222.9% of 109 movements
Jul 202223.5% of 102 movements
Aug 20227.7% of 104 movements
Sep 202220.7% of 111 movements
Oct 20226.0% of 116 movements
Nov 202215.3% of 131 movements
Dec 202227.9% of 104 movements
Jan 20236.5% of 107 movements
Feb 202311.0% of 118 movements
Mar 202317.2% of 128 movements
Apr 20238.6% of 116 movements
May 202313.3% of 128 movements
Jun 202334.5% of 116 movements
Jul 202311.2% of 107 movements
Aug 202311.4% of 114 movements
Sep 202325.6% of 121 movements
Oct 202319.0% of 137 movements
Nov 202311.5% of 139 movements
Dec 202319.3% of 109 movements
Jan 202411.6% of 112 movements
Feb 20249.5% of 116 movements
Mar 20249.8% of 122 movements
Apr 20247.1% of 126 movements
May 202417.7% of 124 movements
Jun 202416.5% of 97 movements
Jul 202424.8% of 101 movements
Aug 202417.9% of 95 movements
Sep 202417.9% of 117 movements
Oct 202417.2% of 134 movements
Nov 202414.3% of 126 movements
Dec 202426.5% of 102 movements
Jan 202510.4% of 106 movements
Feb 20259.6% of 115 movements
Mar 202512.3% of 122 movements
Apr 20258.3% of 108 movements
May 20258.1% of 111 movements
Jun 202523.1% of 104 movements
Jul 202511.7% of 103 movements
Aug 202520.8% of 96 movements
Sep 202522.4% of 116 movements
Oct 202510.3% of 126 movements
Nov 202512.5% of 128 movements
Dec 202513.0% of 100 movements
Jan 20269.3% of 108 movements
Feb 20266.8% of 117 movements
Mar 202621.6% of 125 movements
Apr 20268.3% of 132 movements
May 202621.1% of 123 movements
Jun 202619.7% of 117 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 2022Arrivals23.5% of 102 movements7.5% across 918 flightsreturned after 3 months
Summer 2022 breakdown · Jul 2022Departures51.5% of 101 movements13.4% across 920 flightsstill above it 8 months later
NATS system failure · Aug 2023Arrivals11.4% of 114 movements15.0% across 1,386 flightsreturned after 3 months
NATS system failure · Aug 2023Departures31.6% of 114 movements26.6% across 1,392 flightsreturned after 3 months
Heathrow fire closure · Mar 2025Arrivals12.3% of 122 movements15.8% across 1,365 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures22.3% of 121 movements23.0% across 1,369 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?

December has historically been the hardest month on this route: in a typical December, 22.9% of arrivals were disrupted, measured across 4 Decembers in the archive. April has been the calmest, at 8.3% across 7 Aprils.

Even December has ranged from 13.0% to 27.9% 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 nJanFebMarAprMayJunJulAugSepOctNovDec201910.8% of 130 movements27.6% of 134 movements26.2% of 141 movements15.0% of 147 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements202012.8% of 148 movements23.0% of 152 movements21.8% of 119 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements4.0% of 25 movements †suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements2021suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementsno datasuppressed: fewer than twenty movements4.4% of 45 movements †4.9% of 41 movements †5.1% of 39 movements †3.3% of 60 movements6.2% of 64 movements1.2% of 84 movements3.8% of 78 movements20223.2% of 31 movements †15.3% of 59 movements6.7% of 104 movements3.4% of 119 movements13.8% of 130 movements22.9% of 109 movements23.5% of 102 movements7.7% of 104 movements20.7% of 111 movements6.0% of 116 movements15.3% of 131 movements27.9% of 104 movements20236.5% of 107 movements11.0% of 118 movements17.2% of 128 movements8.6% of 116 movements13.3% of 128 movements34.5% of 116 movements11.2% of 107 movements11.4% of 114 movements25.6% of 121 movements19.0% of 137 movements11.5% of 139 movements19.3% of 109 movements202411.6% of 112 movements9.5% of 116 movements9.8% of 122 movements7.1% of 126 movements17.7% of 124 movements16.5% of 97 movements24.8% of 101 movements17.9% of 95 movements17.9% of 117 movements17.2% of 134 movements14.3% of 126 movements26.5% of 102 movements202510.4% of 106 movements9.6% of 115 movements12.3% of 122 movements8.3% of 108 movements8.1% of 111 movements23.1% of 104 movements11.7% of 103 movements20.8% of 96 movements22.4% of 116 movements10.3% of 126 movements12.5% of 128 movements13.0% of 100 movements20269.3% of 108 movements6.8% of 117 movements21.6% of 125 movements8.3% of 132 movements21.1% of 123 movements19.7% of 117 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan10.4%3.2–19.2%7 months, 719 flights
Feb11.0%6.8–31.3%7 months, 793 flights
Mar17.2%6.7–26.2%7 months, 888 flights
Apr8.3%3.4–20.3%7 months, 906 flights
May15.8%8.1–22.4%6 months, 786 flights
Jun21.9%16.5–34.5%6 months, 687 flights
Jul20.7%11.2–24.8%5 months, 548 flights
Aug17.9%7.7–20.8%5 months, 541 flights
Sep20.7%13.2–25.6%5 months, 617 flights
Oct17.2%6.0–19.0%5 months, 688 flights
Nov13.4%11.5–15.3%4 months, 524 flights
Dec22.9%13.0–27.9%4 months, 415 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: Ba Cityflyer Ltd, 14.7% of 1,391 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 optionBa Cityflyer14.7% of 1,391 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Ba Cityflyer1,39114.7% of 1,391 movements1.6% of 1,391 movements0.4% of 1,391 movementsdescriptive comparison

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 14.7% of 1,391 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 optionBfs ↔ Glasgow15.8% of 1,179 flightsBhd ↔ Glasgow24.1% of 644 flightsBhx ↔ Glasgow9.0% of 643 flightsBrs ↔ Glasgow22.7% of 1,027 flightsJer ↔ Glasgow19.2% of 156 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
Bfs ↔ Glasgow1,17915.8% of 1,179 movements0.5% of 1,179 movements0.3% of 1,179 movementsdescriptive comparison
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
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?

Yes: arrivals into LCY ran 14.7% of 1,391 movements disrupted, departures 25.0% of 1,399 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 LCY14.7% of 1,391 movements1.6% of 1,391 movements0.4% of 1,391 movements
Departures from LCY25.0% of 1,399 movements1.4% of 1,399 movementsno events in 1,399 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 202620 flights out of 9,02120 × £220 = £4,400
ArrivalsLast 72 months · Jul 2020–Jun 202619 flights out of 6,56519 × £220 = £4,180
DeparturesWhole archive · Jan 2018–Jun 20265 flights out of 9,0625 × £220 = £1,100
DeparturesLast 72 months · Jul 2020–Jun 20265 flights out of 6,5935 × £220 = £1,100
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 airportLONDON CITY · LCY
Final point / countryGLASGOW / UNITED KINGDOM
Final point codesGLA / EGPF
Great-circle distance568 km
Maximum statutory amount for the band£220
Average operated arrivals per day3.75
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 archive91

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: 1,391; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

14.7% of 1,391 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

1.6% of 1,391 movements in the same window.

How many delays crossed three hours?

0.4% of 1,391 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?

568 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

Was your flight delayed 3h+? Check what you may be owed

We'll email you once; unsubscribe any time.

Related records