UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

BFS ↔ LUTON

In the twelve months from July 2025 to June 2026, 23.1% of 1,148 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, 76.9% of 1,148 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 230 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, 23.1% of 1,148 movements were disrupted and 0.6% of 1,148 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
23.1% of 1,148 movements0.6% of 1,148 movements28.6–61.6 min; N of delayed flights=258–5161,148
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: 0.6% of 1,148 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 min22.5%30 min14.2%60 min6.4%120 min1.4%180 min0.4%360 min0.0%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min22.5% of 1,148 movements2584.4
>30 min14.2% of 1,148 movements1637.0
>60 min6.4% of 1,148 movements7315.7
>120 min1.4% of 1,148 movements1671.8
>180 min0.4% of 1,148 movements5229.6
>360 minno events in 1,148 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 early16614.5%15–1 early45940.0%0–15 late25822.5%16–30958.3%31–60907.8%61…120575.0%121…180111.0%181…36050.4%>36000.0%D=1,148
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0270; 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: Sep 2020, no events in 64 movements. Worst month: Apr 2019, 100.0% of 104 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: 10.7%; sample: 1032018Feb 2018: 28.7%; sample: 94Mar 2018: 26.7%; sample: 105Apr 2018: 25.7%; sample: 101May 2018: 35.9%; sample: 103Jun 2018: 34.0%; sample: 100Jul 2018: 35.8%; sample: 106Aug 2018: 37.4%; sample: 107Sep 2018: 23.2%; sample: 99Oct 2018: 21.2%; sample: 104Nov 2018: 3.8%; sample: 104Dec 2018: 23.9%; sample: 109Jan 2019: 11.9%; sample: 1092019Feb 2019: 11.5%; sample: 96Mar 2019: 21.2%; sample: 104Apr 2019: 100.0%; sample: 104May 2019: 17.9%; sample: 106Jun 2019: 34.7%; sample: 101Jul 2019: 22.9%; sample: 105Aug 2019: 35.2%; sample: 105Sep 2019: 23.1%; sample: 104Oct 2019: 30.5%; sample: 105Nov 2019: 7.6%; sample: 105Dec 2019: 25.7%; sample: 113Jan 2020: 7.2%; sample: 1112020Feb 2020: 29.0%; sample: 93Mar 2020: 11.0%; sample: 73Apr 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: 36Aug 2020: 2.8%; sample: 71Sep 2020: 0.0%; sample: 64Oct 2020: 0.0%; sample: 46Nov 2020: suppressed: fewer than twenty movements×Dec 2020: 3.1%; sample: 32Jan 2021: suppressed: fewer than twenty movements×2021Feb 2021: suppressed: fewer than twenty movements×Mar 2021: suppressed: fewer than twenty movements×Apr 2021: suppressed: fewer than twenty movements×May 2021: 15.8%; sample: 38Jun 2021: 1.9%; sample: 52Jul 2021: 4.5%; sample: 66Aug 2021: 2.8%; sample: 71Sep 2021: 4.3%; sample: 70Oct 2021: 5.6%; sample: 72Nov 2021: 3.5%; sample: 85Dec 2021: 11.0%; sample: 91Jan 2022: 1.6%; sample: 612022Feb 2022: 20.0%; sample: 70Mar 2022: 16.8%; sample: 95Apr 2022: 27.0%; sample: 100May 2022: 36.3%; sample: 91Jun 2022: 35.0%; sample: 103Jul 2022: 46.1%; sample: 102Aug 2022: 35.5%; sample: 107Sep 2022: 36.4%; sample: 107Oct 2022: 34.8%; sample: 112Nov 2022: 10.7%; sample: 103Dec 2022: 39.4%; sample: 109Jan 2023: 11.5%; sample: 1042023Feb 2023: 13.3%; sample: 113Mar 2023: 32.5%; sample: 123Apr 2023: 41.5%; sample: 106May 2023: 26.7%; sample: 120Jun 2023: 44.7%; sample: 114Jul 2023: 51.8%; sample: 114Aug 2023: 41.4%; sample: 116Sep 2023: 43.0%; sample: 114Oct 2023: 26.5%; sample: 117Nov 2023: 11.2%; sample: 107Dec 2023: 30.1%; sample: 113Jan 2024: 19.0%; sample: 792024Feb 2024: 19.6%; sample: 97Mar 2024: 20.6%; sample: 107Apr 2024: 22.2%; sample: 117May 2024: 16.1%; sample: 118Jun 2024: 33.3%; sample: 105Jul 2024: 28.4%; sample: 116Aug 2024: 21.7%; sample: 115Sep 2024: 34.8%; sample: 112Oct 2024: 19.0%; sample: 105Nov 2024: 19.5%; sample: 87Dec 2024: 26.2%; sample: 103Jan 2025: 20.7%; sample: 922025Feb 2025: 13.7%; sample: 102Mar 2025: 10.6%; sample: 113Apr 2025: 13.3%; sample: 90May 2025: 14.8%; sample: 88Jun 2025: 21.1%; sample: 95Jul 2025: 35.3%; sample: 102Aug 2025: 33.3%; sample: 102Sep 2025: 36.5%; sample: 74Oct 2025: 30.2%; sample: 86Nov 2025: 9.6%; sample: 94Dec 2025: 16.2%; sample: 111Jan 2026: 21.1%; sample: 902026Feb 2026: 14.4%; sample: 97Mar 2026: 19.3%; sample: 109Apr 2026: 20.0%; sample: 95May 2026: 20.0%; sample: 95Jun 2026: 24.7%; sample: 93Pandemic 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 201810.7% of 103 movements
Feb 201828.7% of 94 movements
Mar 201826.7% of 105 movements
Apr 201825.7% of 101 movements
May 201835.9% of 103 movements
Jun 201834.0% of 100 movements
Jul 201835.8% of 106 movements
Aug 201837.4% of 107 movements
Sep 201823.2% of 99 movements
Oct 201821.2% of 104 movements
Nov 20183.8% of 104 movements
Dec 201823.9% of 109 movements
Jan 201911.9% of 109 movements
Feb 201911.5% of 96 movements
Mar 201921.2% of 104 movements
Apr 2019100.0% of 104 movements
May 201917.9% of 106 movements
Jun 201934.7% of 101 movements
Jul 201922.9% of 105 movements
Aug 201935.2% of 105 movements
Sep 201923.1% of 104 movements
Oct 201930.5% of 105 movements
Nov 20197.6% of 105 movements
Dec 201925.7% of 113 movements
Jan 20207.2% of 111 movements
Feb 202029.0% of 93 movements
Mar 202011.0% of 73 movements
Apr 2020suppressed: fewer than twenty movements
May 2020suppressed: fewer than twenty movements
Jun 2020suppressed: fewer than twenty movements
Jul 2020no events in 36 movements — small sample, not ranked
Aug 20202.8% of 71 movements
Sep 2020no events in 64 movements
Oct 2020no events in 46 movements — small sample, not ranked
Nov 2020suppressed: fewer than twenty movements
Dec 20203.1% of 32 movements — small sample, not ranked
Jan 2021suppressed: fewer than twenty movements
Feb 2021suppressed: fewer than twenty movements
Mar 2021suppressed: fewer than twenty movements
Apr 2021suppressed: fewer than twenty movements
May 202115.8% of 38 movements — small sample, not ranked
Jun 20211.9% of 52 movements
Jul 20214.5% of 66 movements
Aug 20212.8% of 71 movements
Sep 20214.3% of 70 movements
Oct 20215.6% of 72 movements
Nov 20213.5% of 85 movements
Dec 202111.0% of 91 movements
Jan 20221.6% of 61 movements
Feb 202220.0% of 70 movements
Mar 202216.8% of 95 movements
Apr 202227.0% of 100 movements
May 202236.3% of 91 movements
Jun 202235.0% of 103 movements
Jul 202246.1% of 102 movements
Aug 202235.5% of 107 movements
Sep 202236.4% of 107 movements
Oct 202234.8% of 112 movements
Nov 202210.7% of 103 movements
Dec 202239.4% of 109 movements
Jan 202311.5% of 104 movements
Feb 202313.3% of 113 movements
Mar 202332.5% of 123 movements
Apr 202341.5% of 106 movements
May 202326.7% of 120 movements
Jun 202344.7% of 114 movements
Jul 202351.8% of 114 movements
Aug 202341.4% of 116 movements
Sep 202343.0% of 114 movements
Oct 202326.5% of 117 movements
Nov 202311.2% of 107 movements
Dec 202330.1% of 113 movements
Jan 202419.0% of 79 movements
Feb 202419.6% of 97 movements
Mar 202420.6% of 107 movements
Apr 202422.2% of 117 movements
May 202416.1% of 118 movements
Jun 202433.3% of 105 movements
Jul 202428.4% of 116 movements
Aug 202421.7% of 115 movements
Sep 202434.8% of 112 movements
Oct 202419.0% of 105 movements
Nov 202419.5% of 87 movements
Dec 202426.2% of 103 movements
Jan 202520.7% of 92 movements
Feb 202513.7% of 102 movements
Mar 202510.6% of 113 movements
Apr 202513.3% of 90 movements
May 202514.8% of 88 movements
Jun 202521.1% of 95 movements
Jul 202535.3% of 102 movements
Aug 202533.3% of 102 movements
Sep 202536.5% of 74 movements
Oct 202530.2% of 86 movements
Nov 20259.6% of 94 movements
Dec 202516.2% of 111 movements
Jan 202621.1% of 90 movements
Feb 202614.4% of 97 movements
Mar 202619.3% of 109 movements
Apr 202620.0% of 95 movements
May 202620.0% of 95 movements
Jun 202624.7% of 93 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 2022Arrivals46.1% of 102 movements14.0% across 975 flightsreturned after 4 months
Summer 2022 breakdown · Jul 2022Departures33.3% of 102 movements19.1% across 978 flightsreturned after 4 months
NATS system failure · Aug 2023Arrivals41.4% of 116 movements31.6% across 1,332 flightsreturned after 2 months
NATS system failure · Aug 2023Departures41.4% of 116 movements31.0% across 1,333 flightsreturned after 2 months
Heathrow fire closure · Mar 2025Arrivals10.6% of 113 movements23.0% across 1,279 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures11.5% of 113 movements23.0% across 1,279 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, 35.6% of arrivals were disrupted, measured across 6 Septembers in the archive. November has been the calmest, at 10.1% across 6 Novembers.

Even September has ranged from 23.1% to 43.0% 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 nJanFebMarAprMayJunJulAugSepOctNovDec201911.9% of 109 movements11.5% of 96 movements21.2% of 104 movements100.0% of 104 movements17.9% of 106 movements34.7% of 101 movements22.9% of 105 movements35.2% of 105 movements23.1% of 104 movements30.5% of 105 movements7.6% of 105 movements25.7% of 113 movements20207.2% of 111 movements29.0% of 93 movements11.0% of 73 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementsno events in 36 movements †2.8% of 71 movementsno events in 64 movementsno events in 46 movements †suppressed: fewer than twenty movements3.1% of 32 movements †2021suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements15.8% of 38 movements †1.9% of 52 movements4.5% of 66 movements2.8% of 71 movements4.3% of 70 movements5.6% of 72 movements3.5% of 85 movements11.0% of 91 movements20221.6% of 61 movements20.0% of 70 movements16.8% of 95 movements27.0% of 100 movements36.3% of 91 movements35.0% of 103 movements46.1% of 102 movements35.5% of 107 movements36.4% of 107 movements34.8% of 112 movements10.7% of 103 movements39.4% of 109 movements202311.5% of 104 movements13.3% of 113 movements32.5% of 123 movements41.5% of 106 movements26.7% of 120 movements44.7% of 114 movements51.8% of 114 movements41.4% of 116 movements43.0% of 114 movements26.5% of 117 movements11.2% of 107 movements30.1% of 113 movements202419.0% of 79 movements19.6% of 97 movements20.6% of 107 movements22.2% of 117 movements16.1% of 118 movements33.3% of 105 movements28.4% of 116 movements21.7% of 115 movements34.8% of 112 movements19.0% of 105 movements19.5% of 87 movements26.2% of 103 movements202520.7% of 92 movements13.7% of 102 movements10.6% of 113 movements13.3% of 90 movements14.8% of 88 movements21.1% of 95 movements35.3% of 102 movements33.3% of 102 movements36.5% of 74 movements30.2% of 86 movements9.6% of 94 movements16.2% of 111 movements202621.1% of 90 movements14.4% of 97 movements19.3% of 109 movements20.0% of 95 movements20.0% of 95 movements24.7% of 93 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan11.9%1.6–21.1%7 months, 638 flights
Feb14.4%11.5–28.7%7 months, 669 flights
Mar20.6%10.6–32.5%7 months, 756 flights
Apr25.7%13.3–100.0%7 months, 713 flights
May20.0%14.8–36.3%7 months, 721 flights
Jun34.0%21.1–44.7%7 months, 711 flights
Jul35.6%22.9–51.8%6 months, 645 flights
Aug35.4%21.7–41.4%6 months, 652 flights
Sep35.6%23.1–43.0%6 months, 610 flights
Oct28.4%19.0–34.8%6 months, 629 flights
Nov10.1%3.8–19.5%6 months, 600 flights
Dec25.9%16.2–39.4%6 months, 658 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, 23.1% of 1,148 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 Uk23.1% of 1,148 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Air X Chartersuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ba Cityflyersuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Blue Islandssuppressed: 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 Uk1,14823.1% of 1,148 movements0.6% of 1,148 movements0.4% of 1,148 movementsdescriptive comparison
Flybesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Japan Airlinessuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
London Executive Aviationsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Pen-Aviasuppressed: 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
Saxonair Chartersuppressed: 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, BHD had the lowest disruption share at 18.0% of 322 movements and ABZ the highest at 30.7% of 254 movements. This route sits at 23.1% of 1,148 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 optionAbz ↔ Luton30.7% of 254 flightsBhd ↔ Luton18.0% of 322 flightsEdi ↔ Luton27.9% of 1,055 flightsGla ↔ Luton24.4% of 1,025 flightsJer ↔ Luton24.4% of 365 flights
Airport comparison table: operations, cancellations, three-hour delays and data quality
Other UK airport to the same cityOperationsDisruptionCancellations>180 minData quality
Abz ↔ Luton25430.7% of 254 movements1.2% of 254 movements1.2% of 254 movementsdescriptive comparison
Bhd ↔ Luton32218.0% of 322 movements0.3% of 322 movementsno events in 322 movementsdescriptive comparison
Bhx ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Boh ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Brs ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Cwl ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Doncaster-Sheffield ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Durham-Tees-Valley ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Edi ↔ Luton1,05527.9% of 1,055 movements0.3% of 1,055 movements0.3% of 1,055 movementsdescriptive comparison
Ema ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ext ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Gla ↔ Luton1,02524.4% of 1,025 movements0.7% of 1,025 movements0.5% of 1,025 movementsdescriptive comparison
Iom ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Jer ↔ Luton36524.4% of 365 movements0.3% of 365 movements1.1% of 365 movementsdescriptive comparison
Lba ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lgw ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lhr ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lpl ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Man ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Mme ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ncl ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Sen ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Stn ↔ Lutonsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed

Does the direction you are flying change anything?

Barely: arrivals into BFS ran 23.1% of 1,148 movements disrupted, departures 22.9% of 1,148 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 BFS23.1% of 1,148 movements0.6% of 1,148 movements0.4% of 1,148 movements
Departures from BFS22.9% of 1,148 movements0.7% of 1,148 movements0.3% of 1,148 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 202625 flights out of 9,13525 × £220 = £5,500
ArrivalsLast 72 months · Jul 2020–Jun 202617 flights out of 6,36617 × £220 = £3,740
DeparturesWhole archive · Jan 2018–Jun 202631 flights out of 9,15431 × £220 = £6,820
DeparturesLast 72 months · Jul 2020–Jun 202623 flights out of 6,37023 × £220 = £5,060
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 / countryLUTON / UNITED KINGDOM
Final point codesLTN / EGGW
Great-circle distance497 km
Maximum statutory amount for the band£220
Average operated arrivals per day3.13
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 archive99

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: 1,148; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

23.1% of 1,148 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

0.6% of 1,148 movements in the same window.

How many delays crossed three hours?

0.4% of 1,148 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?

497 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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