UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

STN ↔ MARSEILLE

In the twelve months from July 2025 to June 2026, 37.1% of 703 movements arriving into STN were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.

Put the other way round, 62.9% of 703 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 88 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, 37.1% of 703 movements were disrupted and 0.4% of 703 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
37.1% of 703 movements0.4% of 703 movements37.2–65.3 min; N of delayed flights=258–434703
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: 0.4% of 703 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 min36.7%30 min24.3%60 min12.1%120 min3.1%180 min1.1%360 min0.1%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min36.7% of 703 movements2582.7
>30 min24.3% of 703 movements1714.1
>60 min12.1% of 703 movements858.3
>120 min3.1% of 703 movements2232.0
>180 min1.1% of 703 movements887.9
>360 min0.1% of 703 movements1703.0
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 early689.7%15–1 early19828.2%0–15 late17625.0%16–308712.4%31–608612.2%61…120639.0%121…180142.0%181…36071.0%>36010.1%D=703
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0462; 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: Oct 2021, 9.4% of 53 movements. Worst month: Jul 2018, 84.3% of 51 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: 25.8%; sample: 312018Feb 2018: 25.0%; sample: 28Mar 2018: 25.0%; sample: 36Apr 2018: 34.6%; sample: 52May 2018: 52.8%; sample: 53Jun 2018: 53.3%; sample: 45Jul 2018: 84.3%; sample: 51Aug 2018: 61.2%; sample: 49Sep 2018: 33.3%; sample: 48Oct 2018: 38.3%; sample: 47Nov 2018: 13.3%; sample: 30Dec 2018: 48.3%; sample: 29Jan 2019: 29.0%; sample: 312019Feb 2019: 32.1%; sample: 28Mar 2019: 22.6%; sample: 31Apr 2019: 12.0%; sample: 50May 2019: 30.8%; sample: 52Jun 2019: 31.4%; sample: 51Jul 2019: 20.8%; sample: 53Aug 2019: 22.2%; sample: 54Sep 2019: 27.5%; sample: 51Oct 2019: 16.0%; sample: 50Nov 2019: 30.0%; sample: 30Dec 2019: 38.7%; sample: 31Jan 2020: 25.0%; sample: 322020Feb 2020: 37.9%; sample: 29Mar 2020: 16.7%; sample: 24Apr 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: 9.1%; sample: 22Sep 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: no data×May 2021: no data×Jun 2021: 0.0%; sample: 25Jul 2021: 15.4%; sample: 39Aug 2021: 17.6%; sample: 51Sep 2021: 11.8%; sample: 51Oct 2021: 9.4%; sample: 53Nov 2021: 46.2%; sample: 26Dec 2021: 44.4%; sample: 27Jan 2022: suppressed: fewer than twenty movements×2022Feb 2022: 33.3%; sample: 24Mar 2022: 6.7%; sample: 30Apr 2022: 23.1%; sample: 52May 2022: 22.6%; sample: 53Jun 2022: 32.0%; sample: 50Jul 2022: 36.0%; sample: 50Aug 2022: 30.6%; sample: 49Sep 2022: 34.6%; sample: 52Oct 2022: 33.3%; sample: 51Nov 2022: 42.9%; sample: 21Dec 2022: 75.0%; sample: 28Jan 2023: 51.9%; sample: 272023Feb 2023: 41.7%; sample: 24Mar 2023: 64.7%; sample: 34Apr 2023: 67.8%; sample: 59May 2023: 36.1%; sample: 61Jun 2023: 43.1%; sample: 58Jul 2023: 53.2%; sample: 62Aug 2023: 50.0%; sample: 62Sep 2023: 50.7%; sample: 69Oct 2023: 56.0%; sample: 75Nov 2023: 46.7%; sample: 30Dec 2023: 35.3%; sample: 34Jan 2024: 50.0%; sample: 382024Feb 2024: 31.0%; sample: 29Mar 2024: 22.2%; sample: 36Apr 2024: 57.8%; sample: 64May 2024: 45.5%; sample: 66Jun 2024: 62.5%; sample: 64Jul 2024: 66.1%; sample: 56Aug 2024: 61.2%; sample: 67Sep 2024: 65.2%; sample: 46Oct 2024: 58.6%; sample: 58Nov 2024: 32.7%; sample: 52Dec 2024: 57.4%; sample: 54Jan 2025: 31.8%; sample: 442025Feb 2025: 30.0%; sample: 50Mar 2025: 29.3%; sample: 58Apr 2025: 33.8%; sample: 65May 2025: 42.4%; sample: 66Jun 2025: 43.8%; sample: 64Jul 2025: 62.1%; sample: 66Aug 2025: 48.5%; sample: 66Sep 2025: 61.0%; sample: 59Oct 2025: 43.5%; sample: 62Nov 2025: 22.6%; sample: 53Dec 2025: 18.9%; sample: 53Jan 2026: 22.0%; sample: 412026Feb 2026: 25.0%; sample: 48Mar 2026: 16.4%; sample: 55Apr 2026: 20.3%; sample: 69May 2026: 37.3%; sample: 67Jun 2026: 53.1%; sample: 64Pandemic 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 201825.8% of 31 movements — small sample, not ranked
Feb 201825.0% of 28 movements — small sample, not ranked
Mar 201825.0% of 36 movements — small sample, not ranked
Apr 201834.6% of 52 movements
May 201852.8% of 53 movements
Jun 201853.3% of 45 movements — small sample, not ranked
Jul 201884.3% of 51 movements
Aug 201861.2% of 49 movements — small sample, not ranked
Sep 201833.3% of 48 movements — small sample, not ranked
Oct 201838.3% of 47 movements — small sample, not ranked
Nov 201813.3% of 30 movements — small sample, not ranked
Dec 201848.3% of 29 movements — small sample, not ranked
Jan 201929.0% of 31 movements — small sample, not ranked
Feb 201932.1% of 28 movements — small sample, not ranked
Mar 201922.6% of 31 movements — small sample, not ranked
Apr 201912.0% of 50 movements
May 201930.8% of 52 movements
Jun 201931.4% of 51 movements
Jul 201920.8% of 53 movements
Aug 201922.2% of 54 movements
Sep 201927.5% of 51 movements
Oct 201916.0% of 50 movements
Nov 201930.0% of 30 movements — small sample, not ranked
Dec 201938.7% of 31 movements — small sample, not ranked
Jan 202025.0% of 32 movements — small sample, not ranked
Feb 202037.9% of 29 movements — small sample, not ranked
Mar 202016.7% of 24 movements — small sample, not ranked
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 20209.1% of 22 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 2021no data
May 2021no data
Jun 2021no events in 25 movements — small sample, not ranked
Jul 202115.4% of 39 movements — small sample, not ranked
Aug 202117.6% of 51 movements
Sep 202111.8% of 51 movements
Oct 20219.4% of 53 movements
Nov 202146.2% of 26 movements — small sample, not ranked
Dec 202144.4% of 27 movements — small sample, not ranked
Jan 2022suppressed: fewer than twenty movements
Feb 202233.3% of 24 movements — small sample, not ranked
Mar 20226.7% of 30 movements — small sample, not ranked
Apr 202223.1% of 52 movements
May 202222.6% of 53 movements
Jun 202232.0% of 50 movements
Jul 202236.0% of 50 movements
Aug 202230.6% of 49 movements — small sample, not ranked
Sep 202234.6% of 52 movements
Oct 202233.3% of 51 movements
Nov 202242.9% of 21 movements — small sample, not ranked
Dec 202275.0% of 28 movements — small sample, not ranked
Jan 202351.9% of 27 movements — small sample, not ranked
Feb 202341.7% of 24 movements — small sample, not ranked
Mar 202364.7% of 34 movements — small sample, not ranked
Apr 202367.8% of 59 movements
May 202336.1% of 61 movements
Jun 202343.1% of 58 movements
Jul 202353.2% of 62 movements
Aug 202350.0% of 62 movements
Sep 202350.7% of 69 movements
Oct 202356.0% of 75 movements
Nov 202346.7% of 30 movements — small sample, not ranked
Dec 202335.3% of 34 movements — small sample, not ranked
Jan 202450.0% of 38 movements — small sample, not ranked
Feb 202431.0% of 29 movements — small sample, not ranked
Mar 202422.2% of 36 movements — small sample, not ranked
Apr 202457.8% of 64 movements
May 202445.5% of 66 movements
Jun 202462.5% of 64 movements
Jul 202466.1% of 56 movements
Aug 202461.2% of 67 movements
Sep 202465.2% of 46 movements — small sample, not ranked
Oct 202458.6% of 58 movements
Nov 202432.7% of 52 movements
Dec 202457.4% of 54 movements
Jan 202531.8% of 44 movements — small sample, not ranked
Feb 202530.0% of 50 movements
Mar 202529.3% of 58 movements
Apr 202533.8% of 65 movements
May 202542.4% of 66 movements
Jun 202543.8% of 64 movements
Jul 202562.1% of 66 movements
Aug 202548.5% of 66 movements
Sep 202561.0% of 59 movements
Oct 202543.5% of 62 movements
Nov 202522.6% of 53 movements
Dec 202518.9% of 53 movements
Jan 202622.0% of 41 movements — small sample, not ranked
Feb 202625.0% of 48 movements — small sample, not ranked
Mar 202616.4% of 55 movements
Apr 202620.3% of 69 movements
May 202637.3% of 67 movements
Jun 202653.1% of 64 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 2022Arrivals36.0% of 50 movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Departures47.1% of 51 movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
NATS system failure · Aug 2023Arrivals50.0% of 62 movements47.9% across 526 flightsreturned after 3 months
NATS system failure · Aug 2023Departures61.3% of 62 movements44.2% across 526 flightsreturned after 3 months
Heathrow fire closure · Mar 2025Arrivals29.3% of 58 movements49.3% across 657 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures24.1% of 58 movements46.9% across 658 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, 57.7% of arrivals were disrupted, measured across 6 Julys in the archive. March has been the calmest, at 22.6% across 7 Marchs.

Even July has ranged from 20.8% to 84.3% 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 nJanFebMarAprMayJunJulAugSepOctNovDec201929.0% of 31 movements †32.1% of 28 movements †22.6% of 31 movements †12.0% of 50 movements30.8% of 52 movements31.4% of 51 movements20.8% of 53 movements22.2% of 54 movements27.5% of 51 movements16.0% of 50 movements30.0% of 30 movements †38.7% of 31 movements †202025.0% of 32 movements †37.9% of 29 movements †16.7% of 24 movements †suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements9.1% of 22 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 movementsno datano datano events in 25 movements †15.4% of 39 movements †17.6% of 51 movements11.8% of 51 movements9.4% of 53 movements46.2% of 26 movements †44.4% of 27 movements †2022suppressed: fewer than twenty movements33.3% of 24 movements †6.7% of 30 movements †23.1% of 52 movements22.6% of 53 movements32.0% of 50 movements36.0% of 50 movements30.6% of 49 movements †34.6% of 52 movements33.3% of 51 movements42.9% of 21 movements †75.0% of 28 movements †202351.9% of 27 movements †41.7% of 24 movements †64.7% of 34 movements †67.8% of 59 movements36.1% of 61 movements43.1% of 58 movements53.2% of 62 movements50.0% of 62 movements50.7% of 69 movements56.0% of 75 movements46.7% of 30 movements †35.3% of 34 movements †202450.0% of 38 movements †31.0% of 29 movements †22.2% of 36 movements †57.8% of 64 movements45.5% of 66 movements62.5% of 64 movements66.1% of 56 movements61.2% of 67 movements65.2% of 46 movements †58.6% of 58 movements32.7% of 52 movements57.4% of 54 movements202531.8% of 44 movements †30.0% of 50 movements29.3% of 58 movements33.8% of 65 movements42.4% of 66 movements43.8% of 64 movements62.1% of 66 movements48.5% of 66 movements61.0% of 59 movements43.5% of 62 movements22.6% of 53 movements18.9% of 53 movements202622.0% of 41 movements †25.0% of 48 movements †16.4% of 55 movements20.3% of 69 movements37.3% of 67 movements53.1% of 64 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan30.4%22.0–51.9%6 months, 212 flights
Feb31.0%25.0–41.7%7 months, 231 flights
Mar22.6%6.7–64.7%7 months, 280 flights
Apr33.8%12.0–67.8%7 months, 411 flights
May37.3%22.6–52.8%7 months, 418 flights
Jun43.8%31.4–62.5%7 months, 396 flights
Jul57.7%20.8–84.3%6 months, 338 flights
Aug49.2%22.2–61.2%6 months, 347 flights
Sep42.7%27.5–65.2%6 months, 325 flights
Oct40.9%16.0–58.6%6 months, 343 flights
Nov31.3%13.3–46.7%6 months, 216 flights
Dec43.5%18.9–75.0%6 months, 229 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: Ryanair, 36.7% of 689 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 optionRyanair36.7% of 689 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Enter Airsuppressed: 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
Ryanair68936.7% of 689 movements0.4% of 689 movements1.2% of 689 movementsdescriptive comparison
Ryanair Uksuppressed: 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 26.2% of 1,125 movements and BRS the highest at 52.9% of 104 movements. This route sits at 37.1% of 703 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 ↔ Marseille52.9% of 104 flightsEdi ↔ Marseille43.1% of 116 flightsLgw ↔ Marseille34.2% of 521 flightsLhr ↔ Marseille26.2% of 1,125 flightsMan ↔ Marseille38.8% of 103 flights
Airport comparison table: operations, cancellations, three-hour delays and data quality
Other UK airport to the same cityOperationsDisruptionCancellations>180 minData quality
Bhd ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Bhx ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Boh ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Brs ↔ Marseille10452.9% of 104 movements1.0% of 104 movementsno events in 104 movementsdescriptive comparison
Cwl ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Doncaster-Sheffield ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Durham-Tees-Valley ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Edi ↔ Marseille11643.1% of 116 movements0.9% of 116 movementsno events in 116 movementsdescriptive comparison
Ema ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ext ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Gla ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lgw ↔ Marseille52134.2% of 521 movements1.3% of 521 movements1.5% of 521 movementsdescriptive comparison
Lhr ↔ Marseille1,12526.2% of 1,125 movements1.2% of 1,125 movements1.0% of 1,125 movementsdescriptive comparison
Lpl ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ltn ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Man ↔ Marseille10338.8% of 103 movementsno events in 103 movements1.0% of 103 movementsdescriptive comparison
Mme ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ncl ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Sen ↔ Marseillesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed

Does the direction you are flying change anything?

Yes: arrivals into STN ran 37.1% of 703 movements disrupted, departures 40.5% of 704 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 STN37.1% of 703 movements0.4% of 703 movements1.1% of 703 movements
Departures from STN40.5% of 704 movements0.3% of 704 movements0.4% of 704 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 202649 flights out of 4,17649 × £220 = £10,780
ArrivalsLast 72 months · Jul 2020–Jun 202633 flights out of 3,07733 × £220 = £7,260
DeparturesWhole archive · Jan 2018–Jun 202635 flights out of 4,18635 × £220 = £7,700
DeparturesLast 72 months · Jul 2020–Jun 202627 flights out of 3,08627 × £220 = £5,940
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 airportSTANSTED · STN
Final point / countryMARSEILLE / FRANCE
Final point codesMRS / LFML
Great-circle distance1,010 km
Maximum statutory amount for the band£220
Average operated arrivals per day1.92
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 archive93

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: 703; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

37.1% of 703 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

0.4% of 703 movements in the same window.

How many delays crossed three hours?

1.1% of 703 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?

1,010 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?

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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

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