UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

EDI ↔ NEW YORK JF KENNEDY

In the twelve months from July 2025 to June 2026, 25.5% of 557 movements arriving into EDI were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.

Put the other way round, 74.5% of 557 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 111 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, 25.5% of 557 movements were disrupted and 0.2% of 557 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
25.5% of 557 movements0.2% of 557 movements38.1–67.7 min; N of delayed flights=141–236557
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: 0.2% of 557 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 min25.3%30 min16.2%60 min9.3%120 min2.9%180 min0.9%360 min0.0%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min25.3% of 557 movements1414.0
>30 min16.2% of 557 movements906.2
>60 min9.3% of 557 movements5210.7
>120 min2.9% of 557 movements1634.8
>180 min0.9% of 557 movements5111.4
>360 minno events in 557 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 early16930.3%15–1 early15127.1%0–15 late9517.1%16–30519.2%31–60386.8%61…120366.5%121…180112.0%181…36050.9%>36000.0%D=557
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0562; 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 2018, 7.5% of 53 movements. Worst month: Jul 2025, 37.1% of 62 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: suppressed: fewer than twenty movements×2018Feb 2018: no data×Mar 2018: suppressed: fewer than twenty movements×Apr 2018: 16.7%; sample: 48May 2018: 21.8%; sample: 55Jun 2018: 28.3%; sample: 60Jul 2018: 30.6%; sample: 62Aug 2018: 29.0%; sample: 62Sep 2018: 20.0%; sample: 60Oct 2018: 7.5%; sample: 53Nov 2018: 23.8%; sample: 21Dec 2018: 22.7%; sample: 22Jan 2019: suppressed: fewer than twenty movements×2019Feb 2019: no data×Mar 2019: suppressed: fewer than twenty movements×Apr 2019: 19.4%; sample: 31May 2019: 22.6%; sample: 31Jun 2019: 40.0%; sample: 30Jul 2019: 38.7%; sample: 31Aug 2019: 38.7%; sample: 31Sep 2019: 16.7%; sample: 30Oct 2019: 9.7%; sample: 31Nov 2019: 0.0%; sample: 27Dec 2019: 20.7%; sample: 29Jan 2020: suppressed: fewer than twenty movements×2020Feb 2020: suppressed: fewer than twenty movements×Mar 2020: suppressed: fewer than twenty movements×Apr 2020: suppressed: fewer than twenty movements×May 2020: suppressed: fewer than twenty movements×Jun 2020: suppressed: fewer than twenty movements×Jul 2020: suppressed: fewer than twenty movements×Aug 2020: suppressed: fewer than twenty movements×Sep 2020: 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: no data×Jul 2021: no data×Aug 2021: no data×Sep 2021: no data×Oct 2021: no data×Nov 2021: no data×Dec 2021: no data×Jan 2022: no data×2022Feb 2022: no data×Mar 2022: no data×Apr 2022: no data×May 2022: 40.9%; sample: 22Jun 2022: 53.3%; sample: 30Jul 2022: 45.2%; sample: 31Aug 2022: 56.2%; sample: 32Sep 2022: 26.1%; sample: 23Oct 2022: 17.4%; sample: 23Nov 2022: 9.1%; sample: 22Dec 2022: 50.0%; sample: 20Jan 2023: 52.2%; sample: 232023Feb 2023: 30.0%; sample: 20Mar 2023: 27.3%; sample: 22Apr 2023: 40.0%; sample: 25May 2023: 12.9%; sample: 31Jun 2023: 30.0%; sample: 30Jul 2023: 32.3%; sample: 31Aug 2023: 25.8%; sample: 31Sep 2023: 33.3%; sample: 30Oct 2023: 3.2%; sample: 31Nov 2023: 9.5%; sample: 21Dec 2023: 9.1%; sample: 22Jan 2024: suppressed: fewer than twenty movements×2024Feb 2024: suppressed: fewer than twenty movements×Mar 2024: suppressed: fewer than twenty movements×Apr 2024: 10.0%; sample: 30May 2024: 12.5%; sample: 40Jun 2024: 16.7%; sample: 60Jul 2024: 16.1%; sample: 62Aug 2024: 22.6%; sample: 62Sep 2024: 18.3%; sample: 60Oct 2024: 13.3%; sample: 30Nov 2024: suppressed: fewer than twenty movements×Dec 2024: suppressed: fewer than twenty movements×Jan 2025: suppressed: fewer than twenty movements×2025Feb 2025: no data×Mar 2025: suppressed: fewer than twenty movements×Apr 2025: 10.0%; sample: 30May 2025: 20.0%; sample: 55Jun 2025: 28.3%; sample: 60Jul 2025: 37.1%; sample: 62Aug 2025: 18.8%; sample: 64Sep 2025: 16.7%; sample: 60Oct 2025: 28.3%; sample: 53Nov 2025: suppressed: fewer than twenty movements×Dec 2025: suppressed: fewer than twenty movements×Jan 2026: suppressed: fewer than twenty movements×2026Feb 2026: no data×Mar 2026: 8.1%; sample: 37Apr 2026: 18.0%; sample: 61May 2026: 25.8%; sample: 93Jun 2026: 32.2%; sample: 90Pandemic 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 2018suppressed: fewer than twenty movements
Feb 2018no data
Mar 2018suppressed: fewer than twenty movements
Apr 201816.7% of 48 movements — small sample, not ranked
May 201821.8% of 55 movements
Jun 201828.3% of 60 movements
Jul 201830.6% of 62 movements
Aug 201829.0% of 62 movements
Sep 201820.0% of 60 movements
Oct 20187.5% of 53 movements
Nov 201823.8% of 21 movements — small sample, not ranked
Dec 201822.7% of 22 movements — small sample, not ranked
Jan 2019suppressed: fewer than twenty movements
Feb 2019no data
Mar 2019suppressed: fewer than twenty movements
Apr 201919.4% of 31 movements — small sample, not ranked
May 201922.6% of 31 movements — small sample, not ranked
Jun 201940.0% of 30 movements — small sample, not ranked
Jul 201938.7% of 31 movements — small sample, not ranked
Aug 201938.7% of 31 movements — small sample, not ranked
Sep 201916.7% of 30 movements — small sample, not ranked
Oct 20199.7% of 31 movements — small sample, not ranked
Nov 2019no events in 27 movements — small sample, not ranked
Dec 201920.7% of 29 movements — small sample, not ranked
Jan 2020suppressed: fewer than twenty movements
Feb 2020suppressed: fewer than twenty movements
Mar 2020suppressed: fewer than twenty movements
Apr 2020suppressed: fewer than twenty movements
May 2020suppressed: fewer than twenty movements
Jun 2020suppressed: fewer than twenty movements
Jul 2020suppressed: fewer than twenty movements
Aug 2020suppressed: fewer than twenty movements
Sep 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 data
Jul 2021no data
Aug 2021no data
Sep 2021no data
Oct 2021no data
Nov 2021no data
Dec 2021no data
Jan 2022no data
Feb 2022no data
Mar 2022no data
Apr 2022no data
May 202240.9% of 22 movements — small sample, not ranked
Jun 202253.3% of 30 movements — small sample, not ranked
Jul 202245.2% of 31 movements — small sample, not ranked
Aug 202256.2% of 32 movements — small sample, not ranked
Sep 202226.1% of 23 movements — small sample, not ranked
Oct 202217.4% of 23 movements — small sample, not ranked
Nov 20229.1% of 22 movements — small sample, not ranked
Dec 202250.0% of 20 movements — small sample, not ranked
Jan 202352.2% of 23 movements — small sample, not ranked
Feb 202330.0% of 20 movements — small sample, not ranked
Mar 202327.3% of 22 movements — small sample, not ranked
Apr 202340.0% of 25 movements — small sample, not ranked
May 202312.9% of 31 movements — small sample, not ranked
Jun 202330.0% of 30 movements — small sample, not ranked
Jul 202332.3% of 31 movements — small sample, not ranked
Aug 202325.8% of 31 movements — small sample, not ranked
Sep 202333.3% of 30 movements — small sample, not ranked
Oct 20233.2% of 31 movements — small sample, not ranked
Nov 20239.5% of 21 movements — small sample, not ranked
Dec 20239.1% of 22 movements — small sample, not ranked
Jan 2024suppressed: fewer than twenty movements
Feb 2024suppressed: fewer than twenty movements
Mar 2024suppressed: fewer than twenty movements
Apr 202410.0% of 30 movements — small sample, not ranked
May 202412.5% of 40 movements — small sample, not ranked
Jun 202416.7% of 60 movements
Jul 202416.1% of 62 movements
Aug 202422.6% of 62 movements
Sep 202418.3% of 60 movements
Oct 202413.3% of 30 movements — small sample, not ranked
Nov 2024suppressed: fewer than twenty movements
Dec 2024suppressed: fewer than twenty movements
Jan 2025suppressed: fewer than twenty movements
Feb 2025no data
Mar 2025suppressed: fewer than twenty movements
Apr 202510.0% of 30 movements — small sample, not ranked
May 202520.0% of 55 movements
Jun 202528.3% of 60 movements
Jul 202537.1% of 62 movements
Aug 202518.8% of 64 movements
Sep 202516.7% of 60 movements
Oct 202528.3% of 53 movements
Nov 2025suppressed: fewer than twenty movements
Dec 2025suppressed: fewer than twenty movements
Jan 2026suppressed: fewer than twenty movements
Feb 2026no data
Mar 20268.1% of 37 movements — small sample, not ranked
Apr 202618.0% of 61 movements
May 202625.8% of 93 movements
Jun 202632.2% of 90 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 2022Arrivals45.2% of 31 movements — small sample, not rankedno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Departures90.6% of 32 movements — small sample, not rankedno complete baselinenot enough data: needs a complete baseline and a publishable event month
NATS system failure · Aug 2023Arrivals25.8% of 31 movements — small sample, not ranked32.0% across 302 flightsreturned after 2 months
NATS system failure · Aug 2023Departures15.6% of 32 movements — small sample, not ranked26.1% across 307 flightsreturned after 2 months
Heathrow fire closure · Mar 2025Arrivalssuppressed: fewer than twenty movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Heathrow fire closure · Mar 2025Departuressuppressed: fewer than twenty movementsno complete baselinenot enough data: needs a complete baseline and a publishable event 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?

January has historically been the hardest month on this route: in a typical January, 52.2% of arrivals were disrupted, measured across 1 Januarys in the archive. November has been the calmest, at 9.3% across 4 Novembers.

Even January has ranged from 52.2% to 52.2% 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 nJanFebMarAprMayJunJulAugSepOctNovDec2019suppressed: fewer than twenty movementsno datasuppressed: fewer than twenty movements19.4% of 31 movements †22.6% of 31 movements †40.0% of 30 movements †38.7% of 31 movements †38.7% of 31 movements †16.7% of 30 movements †9.7% of 31 movements †no events in 27 movements †20.7% of 29 movements †2020suppressed: 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 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 datano datano datano datano datano datano data2022no datano datano datano data40.9% of 22 movements †53.3% of 30 movements †45.2% of 31 movements †56.2% of 32 movements †26.1% of 23 movements †17.4% of 23 movements †9.1% of 22 movements †50.0% of 20 movements †202352.2% of 23 movements †30.0% of 20 movements †27.3% of 22 movements †40.0% of 25 movements †12.9% of 31 movements †30.0% of 30 movements †32.3% of 31 movements †25.8% of 31 movements †33.3% of 30 movements †3.2% of 31 movements †9.5% of 21 movements †9.1% of 22 movements †2024suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements10.0% of 30 movements †12.5% of 40 movements †16.7% of 60 movements16.1% of 62 movements22.6% of 62 movements18.3% of 60 movements13.3% of 30 movements †suppressed: fewer than twenty movementssuppressed: fewer than twenty movements2025suppressed: fewer than twenty movementsno datasuppressed: fewer than twenty movements10.0% of 30 movements †20.0% of 55 movements28.3% of 60 movements37.1% of 62 movements18.8% of 64 movements16.7% of 60 movements28.3% of 53 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements2026suppressed: fewer than twenty movementsno data8.1% of 37 movements †18.0% of 61 movements25.8% of 93 movements32.2% of 90 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan52.2%52.2%1 months, 23 flights
Feb30.0%30.0%1 months, 20 flights
Mar17.7%8.1–27.3%2 months, 59 flights
Apr17.3%10.0–40.0%6 months, 225 flights
May21.8%12.5–40.9%7 months, 327 flights
Jun30.0%16.7–53.3%7 months, 360 flights
Jul34.7%16.1–45.2%6 months, 279 flights
Aug27.4%18.8–56.2%6 months, 282 flights
Sep19.2%16.7–33.3%6 months, 263 flights
Oct11.5%3.2–28.3%6 months, 221 flights
Nov9.3%0.0–23.8%4 months, 91 flights
Dec21.7%9.1–50.0%4 months, 93 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?

On the published record there is no clear winner: Delta Airlines 25.0% of 264 movements, Jetblue Airways 25.1% of 179 movements, American Airlines 27.2% of 114 movements. The gap between them sits inside sampling noise.

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 optionAmerican Airlines27.2% of 114 flightsDelta Airlines25.0% of 264 flightsJetblue Airways25.1% of 179 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
American Airlines11427.2% of 114 movementsno events in 114 movements0.9% of 114 movementsdescriptive comparison
Delta Airlines26425.0% of 264 movements0.4% of 264 movements1.1% of 264 movementsdescriptive comparison
Jetblue Airways17925.1% of 179 movementsno events in 179 movements0.6% of 179 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, LHR had the lowest disruption share at 20.6% of 7,462 movements and LGW the highest at 36.4% of 472 movements. This route sits at 25.5% of 557 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 optionLgw ↔ New-York-Jf-Kennedy36.4% of 472 flightsLhr ↔ New-York-Jf-Kennedy20.6% of 7,462 flightsMan ↔ New-York-Jf-Kennedy29.2% of 514 flights
Airport comparison table: operations, cancellations, three-hour delays and data quality
Other UK airport to the same cityOperationsDisruptionCancellations>180 minData quality
Bhx ↔ New-York-Jf-Kennedysuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Cwl ↔ New-York-Jf-Kennedysuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Doncaster-Sheffield ↔ New-York-Jf-Kennedysuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Gla ↔ New-York-Jf-Kennedysuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lcy ↔ New-York-Jf-Kennedysuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lgw ↔ New-York-Jf-Kennedy47236.4% of 472 movements4.0% of 472 movements3.2% of 472 movementsdescriptive comparison
Lhr ↔ New-York-Jf-Kennedy7,46220.6% of 7,462 movements2.3% of 7,462 movements0.9% of 7,462 movementsdescriptive comparison
Lpl ↔ New-York-Jf-Kennedysuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ltn ↔ New-York-Jf-Kennedysuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Man ↔ New-York-Jf-Kennedy51429.2% of 514 movements6.0% of 514 movements1.4% of 514 movementsdescriptive comparison

Does the direction you are flying change anything?

Barely: arrivals into EDI ran 25.5% of 557 movements disrupted, departures 22.9% of 559 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 EDI25.5% of 557 movements0.2% of 557 movements0.9% of 557 movements
Departures from EDI22.9% of 559 movements1.1% of 559 movements1.1% of 559 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 202631 flights out of 2,40931 × £520 = £16,120
ArrivalsLast 72 months · Jul 2020–Jun 202617 flights out of 1,62517 × £520 = £8,840
DeparturesWhole archive · Jan 2018–Jun 202647 flights out of 2,42547 × £520 = £24,440
DeparturesLast 72 months · Jul 2020–Jun 202634 flights out of 1,63634 × £520 = £17,680
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 airportEDINBURGH · EDI
Final point / countryNEW YORK (JF KENNEDY) / USA
Final point codesJFK / KJFK
Great-circle distance5,225 km
Maximum statutory amount for the band£520
Average operated arrivals per day1.52
Presence in the latest twelve-month windowoperations are not present in every month; seasonality not established
First and last active monthJan 2018–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: 557; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

25.5% of 557 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

0.2% of 557 movements in the same window.

How many delays crossed three hours?

0.9% of 557 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?

5,225 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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