UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

LGW ↔ BALE MULHOUSE

In the twelve months from July 2025 to June 2026, 22.0% of 563 movements arriving into LGW were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.

Put the other way round, 78.0% of 563 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 141 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, 22.0% of 563 movements were disrupted and 2.0% of 563 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
22.0% of 563 movements2.0% of 563 movements30.9–62.8 min; N of delayed flights=113–212563
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: 2.0% of 563 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 min20.1%30 min12.6%60 min5.9%120 min0.9%180 min0.7%360 min0.0%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min20.1% of 563 movements1135.0
>30 min12.6% of 563 movements717.9
>60 min5.9% of 563 movements3317.1
>120 min0.9% of 563 movements5112.6
>180 min0.7% of 563 movements4140.8
>360 minno events in 563 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 early12622.4%15–1 early21438.0%0–15 late9917.6%16–30427.5%31–60386.7%61…120285.0%121…18010.2%181…36040.7%>36000.0%D=563
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0500; 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: Mar 2025, 4.5% of 67 movements. Worst month: Jul 2019, 60.7% of 89 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: 23.4%; sample: 642018Feb 2018: 22.2%; sample: 81Mar 2018: 27.3%; sample: 88Apr 2018: 22.1%; sample: 86May 2018: 31.1%; sample: 90Jun 2018: 50.6%; sample: 85Jul 2018: 57.3%; sample: 89Aug 2018: 55.7%; sample: 88Sep 2018: 31.0%; sample: 84Oct 2018: 27.3%; sample: 88Nov 2018: 18.1%; sample: 72Dec 2018: 35.7%; sample: 84Jan 2019: 27.0%; sample: 632019Feb 2019: 19.8%; sample: 81Mar 2019: 29.5%; sample: 88Apr 2019: 19.8%; sample: 86May 2019: 29.2%; sample: 89Jun 2019: 50.6%; sample: 85Jul 2019: 60.7%; sample: 89Aug 2019: 59.1%; sample: 88Sep 2019: 42.2%; sample: 83Oct 2019: 31.0%; sample: 87Nov 2019: 10.3%; sample: 68Dec 2019: 41.5%; sample: 82Jan 2020: 19.0%; sample: 632020Feb 2020: 36.6%; sample: 82Mar 2020: 44.6%; sample: 65Apr 2020: suppressed: fewer than twenty movements×May 2020: suppressed: fewer than twenty movements×Jun 2020: suppressed: fewer than twenty movements×Jul 2020: 4.8%; sample: 21Aug 2020: 0.0%; sample: 28Sep 2020: suppressed: fewer than twenty movements×Oct 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: suppressed: fewer than twenty movements×May 2021: suppressed: fewer than twenty movements×Jun 2021: suppressed: fewer than twenty movements×Jul 2021: suppressed: fewer than twenty movements×Aug 2021: suppressed: fewer than twenty movements×Sep 2021: suppressed: fewer than twenty movements×Oct 2021: 13.0%; sample: 23Nov 2021: 2.9%; sample: 35Dec 2021: 4.7%; sample: 43Jan 2022: 8.7%; sample: 232022Feb 2022: 10.6%; sample: 47Mar 2022: 9.2%; sample: 65Apr 2022: 31.6%; sample: 79May 2022: 46.3%; sample: 82Jun 2022: 52.7%; sample: 74Jul 2022: 51.4%; sample: 72Aug 2022: 49.4%; sample: 81Sep 2022: 54.5%; sample: 77Oct 2022: 35.0%; sample: 80Nov 2022: 13.2%; sample: 53Dec 2022: 37.3%; sample: 67Jan 2023: 12.1%; sample: 332023Feb 2023: 12.1%; sample: 58Mar 2023: 27.5%; sample: 69Apr 2023: 31.7%; sample: 60May 2023: 35.9%; sample: 64Jun 2023: 53.3%; sample: 60Jul 2023: 53.2%; sample: 62Aug 2023: 53.1%; sample: 64Sep 2023: 50.0%; sample: 64Oct 2023: 42.6%; sample: 68Nov 2023: 13.7%; sample: 51Dec 2023: 28.4%; sample: 67Jan 2024: 29.6%; sample: 272024Feb 2024: 15.6%; sample: 45Mar 2024: 19.0%; sample: 58Apr 2024: 9.2%; sample: 65May 2024: 17.7%; sample: 62Jun 2024: 32.2%; sample: 59Jul 2024: 28.1%; sample: 57Aug 2024: 30.5%; sample: 59Sep 2024: 40.0%; sample: 60Oct 2024: 26.8%; sample: 71Nov 2024: 11.1%; sample: 54Dec 2024: 27.3%; sample: 77Jan 2025: 35.5%; sample: 312025Feb 2025: 10.0%; sample: 50Mar 2025: 4.5%; sample: 67Apr 2025: 17.5%; sample: 63May 2025: 9.7%; sample: 62Jun 2025: 25.0%; sample: 52Jul 2025: 32.7%; sample: 52Aug 2025: 31.5%; sample: 54Sep 2025: 33.3%; sample: 54Oct 2025: 21.9%; sample: 64Nov 2025: 4.2%; sample: 48Dec 2025: 13.8%; sample: 58Jan 2026: 33.3%; sample: 242026Feb 2026: 14.7%; sample: 34Mar 2026: 10.2%; sample: 59Apr 2026: 27.8%; sample: 36May 2026: 12.1%; sample: 33Jun 2026: 31.9%; sample: 47Pandemic 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 201823.4% of 64 movements
Feb 201822.2% of 81 movements
Mar 201827.3% of 88 movements
Apr 201822.1% of 86 movements
May 201831.1% of 90 movements
Jun 201850.6% of 85 movements
Jul 201857.3% of 89 movements
Aug 201855.7% of 88 movements
Sep 201831.0% of 84 movements
Oct 201827.3% of 88 movements
Nov 201818.1% of 72 movements
Dec 201835.7% of 84 movements
Jan 201927.0% of 63 movements
Feb 201919.8% of 81 movements
Mar 201929.5% of 88 movements
Apr 201919.8% of 86 movements
May 201929.2% of 89 movements
Jun 201950.6% of 85 movements
Jul 201960.7% of 89 movements
Aug 201959.1% of 88 movements
Sep 201942.2% of 83 movements
Oct 201931.0% of 87 movements
Nov 201910.3% of 68 movements
Dec 201941.5% of 82 movements
Jan 202019.0% of 63 movements
Feb 202036.6% of 82 movements
Mar 202044.6% of 65 movements
Apr 2020suppressed: fewer than twenty movements
May 2020suppressed: fewer than twenty movements
Jun 2020suppressed: fewer than twenty movements
Jul 20204.8% of 21 movements — small sample, not ranked
Aug 2020no events in 28 movements — small sample, not ranked
Sep 2020suppressed: fewer than twenty movements
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 2021suppressed: fewer than twenty movements
May 2021suppressed: fewer than twenty movements
Jun 2021suppressed: fewer than twenty movements
Jul 2021suppressed: fewer than twenty movements
Aug 2021suppressed: fewer than twenty movements
Sep 2021suppressed: fewer than twenty movements
Oct 202113.0% of 23 movements — small sample, not ranked
Nov 20212.9% of 35 movements — small sample, not ranked
Dec 20214.7% of 43 movements — small sample, not ranked
Jan 20228.7% of 23 movements — small sample, not ranked
Feb 202210.6% of 47 movements — small sample, not ranked
Mar 20229.2% of 65 movements
Apr 202231.6% of 79 movements
May 202246.3% of 82 movements
Jun 202252.7% of 74 movements
Jul 202251.4% of 72 movements
Aug 202249.4% of 81 movements
Sep 202254.5% of 77 movements
Oct 202235.0% of 80 movements
Nov 202213.2% of 53 movements
Dec 202237.3% of 67 movements
Jan 202312.1% of 33 movements — small sample, not ranked
Feb 202312.1% of 58 movements
Mar 202327.5% of 69 movements
Apr 202331.7% of 60 movements
May 202335.9% of 64 movements
Jun 202353.3% of 60 movements
Jul 202353.2% of 62 movements
Aug 202353.1% of 64 movements
Sep 202350.0% of 64 movements
Oct 202342.6% of 68 movements
Nov 202313.7% of 51 movements
Dec 202328.4% of 67 movements
Jan 202429.6% of 27 movements — small sample, not ranked
Feb 202415.6% of 45 movements — small sample, not ranked
Mar 202419.0% of 58 movements
Apr 20249.2% of 65 movements
May 202417.7% of 62 movements
Jun 202432.2% of 59 movements
Jul 202428.1% of 57 movements
Aug 202430.5% of 59 movements
Sep 202440.0% of 60 movements
Oct 202426.8% of 71 movements
Nov 202411.1% of 54 movements
Dec 202427.3% of 77 movements
Jan 202535.5% of 31 movements — small sample, not ranked
Feb 202510.0% of 50 movements
Mar 20254.5% of 67 movements
Apr 202517.5% of 63 movements
May 20259.7% of 62 movements
Jun 202525.0% of 52 movements
Jul 202532.7% of 52 movements
Aug 202531.5% of 54 movements
Sep 202533.3% of 54 movements
Oct 202521.9% of 64 movements
Nov 20254.2% of 48 movements — small sample, not ranked
Dec 202513.8% of 58 movements
Jan 202633.3% of 24 movements — small sample, not ranked
Feb 202614.7% of 34 movements — small sample, not ranked
Mar 202610.2% of 59 movements
Apr 202627.8% of 36 movements — small sample, not ranked
May 202612.1% of 33 movements — small sample, not ranked
Jun 202631.9% of 47 movements — small sample, not ranked

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 2022Arrivals51.4% of 72 movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Departures70.8% of 72 movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
NATS system failure · Aug 2023Arrivals53.1% of 64 movements34.6% across 764 flightsreturned after 3 months
NATS system failure · Aug 2023Departures72.6% of 62 movements45.0% across 758 flightsreturned after 3 months
Heathrow fire closure · Mar 2025Arrivals4.5% of 67 movements23.9% across 703 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures22.4% of 67 movements39.8% across 701 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?

July has historically been the hardest month on this route: in a typical July, 52.3% of arrivals were disrupted, measured across 6 Julys in the archive. November has been the calmest, at 12.2% across 6 Novembers.

Even July has ranged from 28.1% to 60.7% 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 nJanFebMarAprMayJunJulAugSepOctNovDec201927.0% of 63 movements19.8% of 81 movements29.5% of 88 movements19.8% of 86 movements29.2% of 89 movements50.6% of 85 movements60.7% of 89 movements59.1% of 88 movements42.2% of 83 movements31.0% of 87 movements10.3% of 68 movements41.5% of 82 movements202019.0% of 63 movements36.6% of 82 movements44.6% of 65 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements4.8% of 21 movements †no events in 28 movements †suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements2021suppressed: 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 movementssuppressed: fewer than twenty movements13.0% of 23 movements †2.9% of 35 movements †4.7% of 43 movements †20228.7% of 23 movements †10.6% of 47 movements †9.2% of 65 movements31.6% of 79 movements46.3% of 82 movements52.7% of 74 movements51.4% of 72 movements49.4% of 81 movements54.5% of 77 movements35.0% of 80 movements13.2% of 53 movements37.3% of 67 movements202312.1% of 33 movements †12.1% of 58 movements27.5% of 69 movements31.7% of 60 movements35.9% of 64 movements53.3% of 60 movements53.2% of 62 movements53.1% of 64 movements50.0% of 64 movements42.6% of 68 movements13.7% of 51 movements28.4% of 67 movements202429.6% of 27 movements †15.6% of 45 movements †19.0% of 58 movements9.2% of 65 movements17.7% of 62 movements32.2% of 59 movements28.1% of 57 movements30.5% of 59 movements40.0% of 60 movements26.8% of 71 movements11.1% of 54 movements27.3% of 77 movements202535.5% of 31 movements †10.0% of 50 movements4.5% of 67 movements17.5% of 63 movements9.7% of 62 movements25.0% of 52 movements32.7% of 52 movements31.5% of 54 movements33.3% of 54 movements21.9% of 64 movements4.2% of 48 movements †13.8% of 58 movements202633.3% of 24 movements †14.7% of 34 movements †10.2% of 59 movements27.8% of 36 movements †12.1% of 33 movements †31.9% of 47 movements †no datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan27.0%8.7–35.5%7 months, 265 flights
Feb14.7%10.0–22.2%7 months, 396 flights
Mar19.0%4.5–29.5%7 months, 494 flights
Apr22.1%9.2–31.7%7 months, 475 flights
May29.2%9.7–46.3%7 months, 482 flights
Jun50.6%25.0–53.3%7 months, 462 flights
Jul52.3%28.1–60.7%6 months, 421 flights
Aug51.3%30.5–59.1%6 months, 434 flights
Sep41.1%31.0–54.5%6 months, 422 flights
Oct29.2%21.9–42.6%6 months, 458 flights
Nov12.2%4.2–18.1%6 months, 346 flights
Dec32.0%13.8–41.5%6 months, 435 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, 20.8% of 554 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 Uk20.8% of 554 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Easyjet Airlinesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Easyjet Switzerlandsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Easyjet Uk55420.8% of 554 movements0.4% of 554 movements0.7% of 554 movementsdescriptive comparison
Netjets Transportes Aereossuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Rabbit Airsuppressed: 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

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, LHR had the lowest disruption share at 16.1% of 1,021 movements and BRS the highest at 56.2% of 73 movements. This route sits at 22.0% of 563 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 optionBrs ↔ Bale-Mulhouse56.2% of 73 flightsEdi ↔ Bale-Mulhouse23.7% of 219 flightsLhr ↔ Bale-Mulhouse16.1% of 1,021 flightsLtn ↔ Bale-Mulhouse52.3% of 132 flightsMan ↔ Bale-Mulhouse45.6% of 195 flightsStn ↔ Bale-Mulhouse32.1% of 137 flights
Airport comparison table: operations, cancellations, three-hour delays and data quality
Other UK airport to the same cityOperationsDisruptionCancellations>180 minData quality
Bfs ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Bhd ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Bhx ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Brs ↔ Bale-Mulhouse7356.2% of 73 movements1.4% of 73 movementsno events in 73 movementsdescriptive comparison
Cwl ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Edi ↔ Bale-Mulhouse21923.7% of 219 movements1.4% of 219 movementsno events in 219 movementsdescriptive comparison
Ema ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Gla ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Jer ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lcy ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lhr ↔ Bale-Mulhouse1,02116.1% of 1,021 movements1.5% of 1,021 movements0.2% of 1,021 movementsdescriptive comparison
Lpl ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ltn ↔ Bale-Mulhouse13252.3% of 132 movementsno events in 132 movements0.8% of 132 movementsdescriptive comparison
Man ↔ Bale-Mulhouse19545.6% of 195 movements3.1% of 195 movements0.5% of 195 movementsdescriptive comparison
Sou ↔ Bale-Mulhousesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Stn ↔ Bale-Mulhouse13732.1% of 137 movementsno events in 137 movementsno events in 137 movementsdescriptive comparison

Does the direction you are flying change anything?

Yes: arrivals into LGW ran 22.0% of 563 movements disrupted, departures 35.5% of 560 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 LGW22.0% of 563 movements2.0% of 563 movements0.7% of 563 movements
Departures from LGW35.5% of 560 movements0.9% of 560 movements0.7% of 560 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 202655 flights out of 5,54755 × £220 = £12,100
ArrivalsLast 72 months · Jul 2020–Jun 202630 flights out of 3,34930 × £220 = £6,600
DeparturesWhole archive · Jan 2018–Jun 202615 flights out of 5,52615 × £220 = £3,300
DeparturesLast 72 months · Jul 2020–Jun 20268 flights out of 3,3358 × £220 = £1,760
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 airportGATWICK · LGW
Final point / countryBALE MULHOUSE / SWITZERLAND
Final point codesBSL / LFSB
Great-circle distance683 km
Maximum statutory amount for the band£220
Average operated arrivals per day1.51
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 archive97

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: 563; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

22.0% of 563 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

2.0% of 563 movements in the same window.

How many delays crossed three hours?

0.7% of 563 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?

683 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

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