UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

MME ↔ AMS

In the twelve months from July 2025 to June 2026, 23.0% of 846 movements arriving into MME were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.

Put the other way round, 77.0% of 846 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 282 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, 23.0% of 846 movements were disrupted and 4.3% of 846 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
23.0% of 846 movements4.3% of 846 movements20.7–63.8 min; N of delayed flights=159–451846
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: 4.3% of 846 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 min18.8%30 min10.8%60 min4.7%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 min18.8% of 846 movements1595.3
>30 min10.8% of 846 movements919.3
>60 min4.7% of 846 movements4021.1
>120 min1.4% of 846 movements1270.5
>180 min0.4% of 846 movements3282.0
>360 minno events in 846 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 early202.4%15–1 early33940.1%0–15 late29234.5%16–30688.0%31–60516.0%61…120283.3%121…18091.1%181…36030.4%>36000.0%D=846
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0252; 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: Feb 2026, 3.6% of 55 movements. Worst month: Sep 2025, 62.2% of 82 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: no data×2018Feb 2018: no data×Mar 2018: no data×Apr 2018: no data×May 2018: no data×Jun 2018: no data×Jul 2018: no data×Aug 2018: no data×Sep 2018: no data×Oct 2018: no data×Nov 2018: no data×Dec 2018: no data×Jan 2019: 16.2%; sample: 802019Feb 2019: 6.8%; sample: 73Mar 2019: 24.4%; sample: 78Apr 2019: 7.7%; sample: 78May 2019: no data×Jun 2019: no data×Jul 2019: no data×Aug 2019: no data×Sep 2019: no data×Oct 2019: no data×Nov 2019: no data×Dec 2019: 13.0%; sample: 69Jan 2020: 7.4%; sample: 812020Feb 2020: 17.8%; sample: 73Mar 2020: 24.6%; sample: 57Apr 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: 0.0%; sample: 23Sep 2020: 0.0%; sample: 22Oct 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: 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: suppressed: fewer than twenty movements×Nov 2021: suppressed: fewer than twenty movements×Dec 2021: suppressed: fewer than twenty movements×Jan 2022: suppressed: fewer than twenty movements×2022Feb 2022: suppressed: fewer than twenty movements×Mar 2022: suppressed: fewer than twenty movements×Apr 2022: 36.4%; sample: 22May 2022: 35.3%; sample: 34Jun 2022: 31.0%; sample: 42Jul 2022: 18.8%; sample: 32Aug 2022: 14.6%; sample: 41Sep 2022: 18.4%; sample: 38Oct 2022: 8.8%; sample: 34Nov 2022: 5.7%; sample: 53Dec 2022: 13.2%; sample: 53Jan 2023: 5.6%; sample: 542023Feb 2023: 6.2%; sample: 48Mar 2023: 15.5%; sample: 58Apr 2023: 14.9%; sample: 67May 2023: 20.0%; sample: 75Jun 2023: 23.3%; sample: 73Jul 2023: 19.2%; sample: 52Aug 2023: 20.4%; sample: 54Sep 2023: 20.8%; sample: 72Oct 2023: 30.8%; sample: 78Nov 2023: 30.4%; sample: 79Dec 2023: 38.2%; sample: 76Jan 2024: 25.6%; sample: 782024Feb 2024: 25.3%; sample: 75Mar 2024: 13.2%; sample: 76Apr 2024: 56.1%; sample: 82May 2024: 42.4%; sample: 85Jun 2024: 42.5%; sample: 80Jul 2024: 11.3%; sample: 62Aug 2024: 9.0%; sample: 67Sep 2024: 41.5%; sample: 82Oct 2024: 24.7%; sample: 85Nov 2024: 20.9%; sample: 86Dec 2024: 31.8%; sample: 85Jan 2025: 26.7%; sample: 902025Feb 2025: 18.8%; sample: 80Mar 2025: 20.5%; sample: 88Apr 2025: 13.4%; sample: 82May 2025: 31.0%; sample: 84Jun 2025: 38.5%; sample: 78Jul 2025: 33.9%; sample: 62Aug 2025: 25.4%; sample: 67Sep 2025: 62.2%; sample: 82Oct 2025: 27.4%; sample: 84Nov 2025: 11.8%; sample: 85Dec 2025: 10.8%; sample: 83Jan 2026: 39.3%; sample: 612026Feb 2026: 3.6%; sample: 55Mar 2026: 11.8%; sample: 85Apr 2026: 13.3%; sample: 60May 2026: 9.7%; sample: 62Jun 2026: 23.3%; sample: 60Pandemic 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 2018no data
Feb 2018no data
Mar 2018no data
Apr 2018no data
May 2018no data
Jun 2018no data
Jul 2018no data
Aug 2018no data
Sep 2018no data
Oct 2018no data
Nov 2018no data
Dec 2018no data
Jan 201916.2% of 80 movements
Feb 20196.8% of 73 movements
Mar 201924.4% of 78 movements
Apr 20197.7% of 78 movements
May 2019no data
Jun 2019no data
Jul 2019no data
Aug 2019no data
Sep 2019no data
Oct 2019no data
Nov 2019no data
Dec 201913.0% of 69 movements
Jan 20207.4% of 81 movements
Feb 202017.8% of 73 movements
Mar 202024.6% of 57 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 2020no events in 23 movements — small sample, not ranked
Sep 2020no events in 22 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 2021no data
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 2021suppressed: fewer than twenty movements
Nov 2021suppressed: fewer than twenty movements
Dec 2021suppressed: fewer than twenty movements
Jan 2022suppressed: fewer than twenty movements
Feb 2022suppressed: fewer than twenty movements
Mar 2022suppressed: fewer than twenty movements
Apr 202236.4% of 22 movements — small sample, not ranked
May 202235.3% of 34 movements — small sample, not ranked
Jun 202231.0% of 42 movements — small sample, not ranked
Jul 202218.8% of 32 movements — small sample, not ranked
Aug 202214.6% of 41 movements — small sample, not ranked
Sep 202218.4% of 38 movements — small sample, not ranked
Oct 20228.8% of 34 movements — small sample, not ranked
Nov 20225.7% of 53 movements
Dec 202213.2% of 53 movements
Jan 20235.6% of 54 movements
Feb 20236.2% of 48 movements — small sample, not ranked
Mar 202315.5% of 58 movements
Apr 202314.9% of 67 movements
May 202320.0% of 75 movements
Jun 202323.3% of 73 movements
Jul 202319.2% of 52 movements
Aug 202320.4% of 54 movements
Sep 202320.8% of 72 movements
Oct 202330.8% of 78 movements
Nov 202330.4% of 79 movements
Dec 202338.2% of 76 movements
Jan 202425.6% of 78 movements
Feb 202425.3% of 75 movements
Mar 202413.2% of 76 movements
Apr 202456.1% of 82 movements
May 202442.4% of 85 movements
Jun 202442.5% of 80 movements
Jul 202411.3% of 62 movements
Aug 20249.0% of 67 movements
Sep 202441.5% of 82 movements
Oct 202424.7% of 85 movements
Nov 202420.9% of 86 movements
Dec 202431.8% of 85 movements
Jan 202526.7% of 90 movements
Feb 202518.8% of 80 movements
Mar 202520.5% of 88 movements
Apr 202513.4% of 82 movements
May 202531.0% of 84 movements
Jun 202538.5% of 78 movements
Jul 202533.9% of 62 movements
Aug 202525.4% of 67 movements
Sep 202562.2% of 82 movements
Oct 202527.4% of 84 movements
Nov 202511.8% of 85 movements
Dec 202510.8% of 83 movements
Jan 202639.3% of 61 movements
Feb 20263.6% of 55 movements
Mar 202611.8% of 85 movements
Apr 202613.3% of 60 movements
May 20269.7% of 62 movements
Jun 202623.3% of 60 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 2022Arrivals18.8% of 32 movements — small sample, not rankedno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Departures21.9% of 32 movements — small sample, not rankedno complete baselinenot enough data: needs a complete baseline and a publishable event month
NATS system failure · Aug 2023Arrivals20.4% of 54 movements13.8% across 646 flightsreturned after 7 months
NATS system failure · Aug 2023Departures21.8% of 55 movements17.0% across 644 flightsreturned after 7 months
Heathrow fire closure · Mar 2025Arrivals20.5% of 88 movements28.2% across 960 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures22.7% of 88 movements33.2% across 959 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, 31.1% of arrivals were disrupted, measured across 4 Septembers in the archive. February has been the calmest, at 6.8% across 5 Februarys.

Even September has ranged from 18.4% to 62.2% 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 nJanFebMarAprMayJunJulAugSepOctNovDec201916.2% of 80 movements6.8% of 73 movements24.4% of 78 movements7.7% of 78 movementsno datano datano datano datano datano datano data13.0% of 69 movements20207.4% of 81 movements17.8% of 73 movements24.6% of 57 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementsno events in 23 movements †no events in 22 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 datano datasuppressed: 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 movements2022suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements36.4% of 22 movements †35.3% of 34 movements †31.0% of 42 movements †18.8% of 32 movements †14.6% of 41 movements †18.4% of 38 movements †8.8% of 34 movements †5.7% of 53 movements13.2% of 53 movements20235.6% of 54 movements6.2% of 48 movements †15.5% of 58 movements14.9% of 67 movements20.0% of 75 movements23.3% of 73 movements19.2% of 52 movements20.4% of 54 movements20.8% of 72 movements30.8% of 78 movements30.4% of 79 movements38.2% of 76 movements202425.6% of 78 movements25.3% of 75 movements13.2% of 76 movements56.1% of 82 movements42.4% of 85 movements42.5% of 80 movements11.3% of 62 movements9.0% of 67 movements41.5% of 82 movements24.7% of 85 movements20.9% of 86 movements31.8% of 85 movements202526.7% of 90 movements18.8% of 80 movements20.5% of 88 movements13.4% of 82 movements31.0% of 84 movements38.5% of 78 movements33.9% of 62 movements25.4% of 67 movements62.2% of 82 movements27.4% of 84 movements11.8% of 85 movements10.8% of 83 movements202639.3% of 61 movements3.6% of 55 movements11.8% of 85 movements13.3% of 60 movements9.7% of 62 movements23.3% of 60 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan25.6%5.6–39.3%5 months, 363 flights
Feb6.8%3.6–25.3%5 months, 331 flights
Mar15.5%11.8–24.4%5 months, 385 flights
Apr14.2%7.7–56.1%6 months, 391 flights
May31.0%9.7–42.4%5 months, 340 flights
Jun31.0%23.3–42.5%5 months, 333 flights
Jul19.0%11.3–33.9%4 months, 208 flights
Aug17.5%9.0–25.4%4 months, 229 flights
Sep31.1%18.4–62.2%4 months, 274 flights
Oct26.0%8.8–30.8%4 months, 281 flights
Nov16.3%5.7–30.4%4 months, 303 flights
Dec13.2%10.8–38.2%5 months, 366 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: Klm, 23.0% of 846 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 optionKlm23.0% of 846 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Klm84623.0% of 846 movements4.3% of 846 movements0.4% of 846 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, LCY had the lowest disruption share at 16.7% of 3,758 movements and BFS the highest at 41.3% of 213 movements. This route sits at 23.0% of 846 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 ↔ Ams22.9% of 1,715 flightsBfs ↔ Ams41.3% of 213 flightsBhd ↔ Ams18.9% of 661 flightsBhx ↔ Ams26.0% of 2,325 flightsBrs ↔ Ams30.4% of 2,208 flightsCwl ↔ Ams22.2% of 729 flightsEdi ↔ Ams27.9% of 2,433 flightsExt ↔ Ams18.5% of 356 flights
Airport comparison table: operations, cancellations, three-hour delays and data quality
Other UK airport to the same cityOperationsDisruptionCancellations>180 minData quality
Abz ↔ Ams1,71522.9% of 1,715 movements4.2% of 1,715 movementsno events in 1,715 movementsdescriptive comparison
Bfs ↔ Ams21341.3% of 213 movements2.3% of 213 movements0.5% of 213 movementsdescriptive comparison
Bhd ↔ Ams66118.9% of 661 movements2.1% of 661 movementsno events in 661 movementsdescriptive comparison
Bhx ↔ Ams2,32526.0% of 2,325 movements2.9% of 2,325 movements0.3% of 2,325 movementsdescriptive comparison
Boh ↔ Amssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Brs ↔ Ams2,20830.4% of 2,208 movements2.4% of 2,208 movements0.6% of 2,208 movementsdescriptive comparison
Cwl ↔ Ams72922.2% of 729 movements4.1% of 729 movements0.4% of 729 movementsdescriptive comparison
Doncaster-Sheffield ↔ Amssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Durham-Tees-Valley ↔ Amssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Edi ↔ Ams2,43327.9% of 2,433 movements2.7% of 2,433 movements0.4% of 2,433 movementsdescriptive comparison
Ema ↔ Amssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ext ↔ Ams35618.5% of 356 movements4.2% of 356 movementsno events in 356 movementsdescriptive comparison
Gla ↔ Ams1,56025.7% of 1,560 movements2.2% of 1,560 movements0.3% of 1,560 movementsdescriptive comparison
Jer ↔ Amssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lba ↔ Ams1,13024.3% of 1,130 movements3.5% of 1,130 movements0.1% of 1,130 movementsdescriptive comparison
Lcy ↔ Ams3,75816.7% of 3,758 movements2.8% of 3,758 movements0.3% of 3,758 movementsdescriptive comparison
Lgw ↔ Ams1,82127.3% of 1,821 movements2.1% of 1,821 movements0.6% of 1,821 movementsdescriptive comparison
Lhr ↔ Ams5,65524.4% of 5,655 movements2.6% of 5,655 movements0.3% of 5,655 movementsdescriptive comparison
Lpl ↔ Ams39223.7% of 392 movements2.3% of 392 movements0.3% of 392 movementsdescriptive comparison
Ltn ↔ Ams1,65330.2% of 1,653 movements1.7% of 1,653 movements0.7% of 1,653 movementsdescriptive comparison
Man ↔ Ams3,77738.4% of 3,777 movements2.4% of 3,777 movements0.5% of 3,777 movementsdescriptive comparison
Ncl ↔ Ams1,82928.0% of 1,829 movements1.6% of 1,829 movements0.5% of 1,829 movementsdescriptive comparison
Sen ↔ Ams25026.8% of 250 movements0.4% of 250 movementsno events in 250 movementsdescriptive comparison
Sou ↔ Ams78923.3% of 789 movements3.0% of 789 movements0.3% of 789 movementsdescriptive comparison
Stn ↔ Ams49325.4% of 493 movements2.2% of 493 movements0.2% of 493 movementsdescriptive comparison

Does the direction you are flying change anything?

Barely: arrivals into MME ran 23.0% of 846 movements disrupted, departures 24.2% of 846 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 MME23.0% of 846 movements4.3% of 846 movements0.4% of 846 movements
Departures from MME24.2% of 846 movements4.4% of 846 movements0.8% of 846 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 20264 flights out of 4,1764 × £220 = £880
ArrivalsLast 72 months · Jul 2020–Jun 20264 flights out of 3,5874 × £220 = £880
DeparturesWhole archive · Jan 2018–Jun 202623 flights out of 4,17223 × £220 = £5,060
DeparturesLast 72 months · Jul 2020–Jun 202622 flights out of 3,58522 × £220 = £4,840
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 airportTEESSIDE INTERNATIONAL AIRPORT · MME
Final point / countryAMSTERDAM / NETHERLANDS
Final point codesAMS / EHAM
Great-circle distance478 km
Maximum statutory amount for the band£220
Average operated arrivals per day2.22
Presence in the latest twelve-month windowoperations present in every month of the latest twelve-month window
First and last active monthJan 2019–Jun 2026
Months with operations in the archive72

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: 846; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

23.0% of 846 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

4.3% of 846 movements in the same window.

How many delays crossed three hours?

0.4% of 846 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?

478 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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