UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

STN ↔ HAHN

In the twelve months from July 2025 to June 2026, 24.3% of 621 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, 75.7% of 621 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 207 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, 24.3% of 621 movements were disrupted and 0.2% of 621 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
24.3% of 621 movements0.2% of 621 movements27.3–59.3 min; N of delayed flights=150–303621
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 621 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 min24.2%30 min15.3%60 min6.6%120 min1.6%180 min0.5%360 min0.0%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min24.2% of 621 movements1504.1
>30 min15.3% of 621 movements956.5
>60 min6.6% of 621 movements4115.1
>120 min1.6% of 621 movements1062.1
>180 min0.5% of 621 movements3207.0
>360 minno events in 621 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 early9014.5%15–1 early22736.6%0–15 late15324.6%16–30558.9%31–60548.7%61…120315.0%121…18071.1%181…36030.5%>36000.0%D=621
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0275; 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: Apr 2026, 11.5% of 61 movements. Worst month: Dec 2024, 61.8% of 55 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: 16.1%; sample: 312018Feb 2018: 39.3%; sample: 28Mar 2018: 35.5%; sample: 31Apr 2018: 6.7%; sample: 30May 2018: 15.2%; sample: 33Jun 2018: 6.7%; sample: 30Jul 2018: 19.4%; sample: 31Aug 2018: 13.3%; sample: 30Sep 2018: 16.7%; sample: 30Oct 2018: 3.6%; sample: 28Nov 2018: 9.1%; sample: 22Dec 2018: 18.2%; sample: 22Jan 2019: 33.3%; sample: 212019Feb 2019: 40.0%; sample: 20Mar 2019: 20.8%; sample: 24Apr 2019: suppressed: fewer than twenty movements×May 2019: suppressed: fewer than twenty movements×Jun 2019: suppressed: fewer than twenty movements×Jul 2019: suppressed: fewer than twenty movements×Aug 2019: suppressed: fewer than twenty movements×Sep 2019: suppressed: fewer than twenty movements×Oct 2019: suppressed: fewer than twenty movements×Nov 2019: suppressed: fewer than twenty movements×Dec 2019: suppressed: fewer than twenty movements×Jan 2020: suppressed: fewer than twenty movements×2020Feb 2020: suppressed: fewer than twenty movements×Mar 2020: suppressed: fewer than twenty movements×Apr 2020: no data×May 2020: suppressed: fewer than twenty movements×Jun 2020: no data×Jul 2020: no data×Aug 2020: no data×Sep 2020: suppressed: fewer than twenty movements×Oct 2020: no data×Nov 2020: no data×Dec 2020: no data×Jan 2021: no data×2021Feb 2021: no data×Mar 2021: no data×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: suppressed: fewer than twenty movements×Apr 2022: 10.0%; sample: 30May 2022: 9.7%; sample: 31Jun 2022: 10.0%; sample: 30Jul 2022: 13.3%; sample: 30Aug 2022: 19.2%; sample: 26Sep 2022: 23.3%; sample: 30Oct 2022: 32.3%; sample: 31Nov 2022: 10.0%; sample: 30Dec 2022: 39.3%; sample: 28Jan 2023: 19.4%; sample: 312023Feb 2023: 14.3%; sample: 28Mar 2023: 27.3%; sample: 33Apr 2023: 52.6%; sample: 38May 2023: 36.6%; sample: 41Jun 2023: 36.4%; sample: 33Jul 2023: 46.3%; sample: 41Aug 2023: 52.5%; sample: 40Sep 2023: 31.6%; sample: 38Oct 2023: 33.3%; sample: 51Nov 2023: 30.3%; sample: 33Dec 2023: 38.2%; sample: 34Jan 2024: 47.1%; sample: 342024Feb 2024: 37.9%; sample: 29Mar 2024: 21.2%; sample: 33Apr 2024: 44.2%; sample: 43May 2024: 60.0%; sample: 45Jun 2024: 60.4%; sample: 48Jul 2024: 70.5%; sample: 44Aug 2024: 70.5%; sample: 44Sep 2024: 65.9%; sample: 41Oct 2024: 64.4%; sample: 45Nov 2024: 46.3%; sample: 54Dec 2024: 61.8%; sample: 55Jan 2025: 54.8%; sample: 422025Feb 2025: 34.7%; sample: 49Mar 2025: 23.6%; sample: 55Apr 2025: 35.3%; sample: 51May 2025: 30.2%; sample: 53Jun 2025: 40.4%; sample: 52Jul 2025: 52.8%; sample: 53Aug 2025: 32.7%; sample: 52Sep 2025: 40.4%; sample: 52Oct 2025: 26.4%; sample: 53Nov 2025: 10.6%; sample: 47Dec 2025: 14.8%; sample: 54Jan 2026: 26.5%; sample: 342026Feb 2026: 22.9%; sample: 48Mar 2026: 14.5%; sample: 55Apr 2026: 11.5%; sample: 61May 2026: 13.3%; sample: 60Jun 2026: 28.8%; sample: 52Pandemic 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 201816.1% of 31 movements — small sample, not ranked
Feb 201839.3% of 28 movements — small sample, not ranked
Mar 201835.5% of 31 movements — small sample, not ranked
Apr 20186.7% of 30 movements — small sample, not ranked
May 201815.2% of 33 movements — small sample, not ranked
Jun 20186.7% of 30 movements — small sample, not ranked
Jul 201819.4% of 31 movements — small sample, not ranked
Aug 201813.3% of 30 movements — small sample, not ranked
Sep 201816.7% of 30 movements — small sample, not ranked
Oct 20183.6% of 28 movements — small sample, not ranked
Nov 20189.1% of 22 movements — small sample, not ranked
Dec 201818.2% of 22 movements — small sample, not ranked
Jan 201933.3% of 21 movements — small sample, not ranked
Feb 201940.0% of 20 movements — small sample, not ranked
Mar 201920.8% of 24 movements — small sample, not ranked
Apr 2019suppressed: fewer than twenty movements
May 2019suppressed: fewer than twenty movements
Jun 2019suppressed: fewer than twenty movements
Jul 2019suppressed: fewer than twenty movements
Aug 2019suppressed: fewer than twenty movements
Sep 2019suppressed: fewer than twenty movements
Oct 2019suppressed: fewer than twenty movements
Nov 2019suppressed: fewer than twenty movements
Dec 2019suppressed: fewer than twenty movements
Jan 2020suppressed: fewer than twenty movements
Feb 2020suppressed: fewer than twenty movements
Mar 2020suppressed: fewer than twenty movements
Apr 2020no data
May 2020suppressed: fewer than twenty movements
Jun 2020no data
Jul 2020no data
Aug 2020no data
Sep 2020suppressed: fewer than twenty movements
Oct 2020no data
Nov 2020no data
Dec 2020no data
Jan 2021no data
Feb 2021no data
Mar 2021no data
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 2022suppressed: fewer than twenty movements
Apr 202210.0% of 30 movements — small sample, not ranked
May 20229.7% of 31 movements — small sample, not ranked
Jun 202210.0% of 30 movements — small sample, not ranked
Jul 202213.3% of 30 movements — small sample, not ranked
Aug 202219.2% of 26 movements — small sample, not ranked
Sep 202223.3% of 30 movements — small sample, not ranked
Oct 202232.3% of 31 movements — small sample, not ranked
Nov 202210.0% of 30 movements — small sample, not ranked
Dec 202239.3% of 28 movements — small sample, not ranked
Jan 202319.4% of 31 movements — small sample, not ranked
Feb 202314.3% of 28 movements — small sample, not ranked
Mar 202327.3% of 33 movements — small sample, not ranked
Apr 202352.6% of 38 movements — small sample, not ranked
May 202336.6% of 41 movements — small sample, not ranked
Jun 202336.4% of 33 movements — small sample, not ranked
Jul 202346.3% of 41 movements — small sample, not ranked
Aug 202352.5% of 40 movements — small sample, not ranked
Sep 202331.6% of 38 movements — small sample, not ranked
Oct 202333.3% of 51 movements
Nov 202330.3% of 33 movements — small sample, not ranked
Dec 202338.2% of 34 movements — small sample, not ranked
Jan 202447.1% of 34 movements — small sample, not ranked
Feb 202437.9% of 29 movements — small sample, not ranked
Mar 202421.2% of 33 movements — small sample, not ranked
Apr 202444.2% of 43 movements — small sample, not ranked
May 202460.0% of 45 movements — small sample, not ranked
Jun 202460.4% of 48 movements — small sample, not ranked
Jul 202470.5% of 44 movements — small sample, not ranked
Aug 202470.5% of 44 movements — small sample, not ranked
Sep 202465.9% of 41 movements — small sample, not ranked
Oct 202464.4% of 45 movements — small sample, not ranked
Nov 202446.3% of 54 movements
Dec 202461.8% of 55 movements
Jan 202554.8% of 42 movements — small sample, not ranked
Feb 202534.7% of 49 movements — small sample, not ranked
Mar 202523.6% of 55 movements
Apr 202535.3% of 51 movements
May 202530.2% of 53 movements
Jun 202540.4% of 52 movements
Jul 202552.8% of 53 movements
Aug 202532.7% of 52 movements
Sep 202540.4% of 52 movements
Oct 202526.4% of 53 movements
Nov 202510.6% of 47 movements — small sample, not ranked
Dec 202514.8% of 54 movements
Jan 202626.5% of 34 movements — small sample, not ranked
Feb 202622.9% of 48 movements — small sample, not ranked
Mar 202614.5% of 55 movements
Apr 202611.5% of 61 movements
May 202613.3% of 60 movements
Jun 202628.8% of 52 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 2020Arrivalsno datano complete baselinenot enough data: needs a complete baseline and a publishable event month
Pandemic regime · Jun 2020Departuresno datano complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Arrivals13.3% of 30 movements — small sample, not rankedno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Departures27.6% of 29 movements — small sample, not rankedno complete baselinenot enough data: needs a complete baseline and a publishable event month
NATS system failure · Aug 2023Arrivals52.5% of 40 movements — small sample, not ranked29.7% across 390 flightsreturned after 7 months
NATS system failure · Aug 2023Departures50.0% of 40 movements — small sample, not ranked39.0% across 390 flightsreturned after 2 months
Heathrow fire closure · Mar 2025Arrivals23.6% of 55 movements54.5% across 543 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures20.0% of 55 movements45.6% across 542 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, 46.3% of arrivals were disrupted, measured across 5 Julys in the archive. November has been the calmest, at 10.6% across 5 Novembers.

Even July has ranged from 13.3% to 70.5% 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 nJanFebMarAprMayJunJulAugSepOctNovDec201933.3% of 21 movements †40.0% of 20 movements †20.8% of 24 movements †suppressed: 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 movements2020suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementsno datasuppressed: fewer than twenty movementsno datano datano datasuppressed: fewer than twenty movementsno datano datano data2021no datano datano datano datano datano datano datano datano datano datano datano data2022no datano datasuppressed: fewer than twenty movements10.0% of 30 movements †9.7% of 31 movements †10.0% of 30 movements †13.3% of 30 movements †19.2% of 26 movements †23.3% of 30 movements †32.3% of 31 movements †10.0% of 30 movements †39.3% of 28 movements †202319.4% of 31 movements †14.3% of 28 movements †27.3% of 33 movements †52.6% of 38 movements †36.6% of 41 movements †36.4% of 33 movements †46.3% of 41 movements †52.5% of 40 movements †31.6% of 38 movements †33.3% of 51 movements30.3% of 33 movements †38.2% of 34 movements †202447.1% of 34 movements †37.9% of 29 movements †21.2% of 33 movements †44.2% of 43 movements †60.0% of 45 movements †60.4% of 48 movements †70.5% of 44 movements †70.5% of 44 movements †65.9% of 41 movements †64.4% of 45 movements †46.3% of 54 movements61.8% of 55 movements202554.8% of 42 movements †34.7% of 49 movements †23.6% of 55 movements35.3% of 51 movements30.2% of 53 movements40.4% of 52 movements52.8% of 53 movements32.7% of 52 movements40.4% of 52 movements26.4% of 53 movements10.6% of 47 movements †14.8% of 54 movements202626.5% of 34 movements †22.9% of 48 movements †14.5% of 55 movements11.5% of 61 movements13.3% of 60 movements28.8% of 52 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan29.9%16.1–54.8%6 months, 193 flights
Feb36.3%14.3–40.0%6 months, 202 flights
Mar22.4%14.5–35.5%6 months, 231 flights
Apr23.4%6.7–52.6%6 months, 253 flights
May22.7%9.7–60.0%6 months, 263 flights
Jun32.6%6.7–60.4%6 months, 245 flights
Jul46.3%13.3–70.5%5 months, 199 flights
Aug32.7%13.3–70.5%5 months, 192 flights
Sep31.6%16.7–65.9%5 months, 191 flights
Oct32.3%3.6–64.4%5 months, 208 flights
Nov10.6%9.1–46.3%5 months, 186 flights
Dec38.2%14.8–61.8%5 months, 193 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, 24.6% of 602 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 optionRyanair24.6% of 602 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Ryanair60224.6% of 602 movements0.2% of 602 movements0.5% of 602 movementsdescriptive comparison
Ryanair Uksuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Titan Airwayssuppressed: 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?

No other UK airport published enough flights to this city in this window.

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.

Airport comparison table: operations, cancellations, three-hour delays and data quality
Other UK airport to the same cityOperationsDisruptionCancellations>180 minData quality
Abz ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Bfs ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Bhx ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Brs ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Cwl ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Edi ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ema ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lpl ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ltn ↔ Hahnsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Man ↔ Hahnsuppressed: 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 24.3% of 621 movements disrupted, departures 30.3% of 621 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 STN24.3% of 621 movements0.2% of 621 movements0.5% of 621 movements
Departures from STN30.3% of 621 movementsno events in 621 movements0.2% of 621 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 202621 flights out of 2,56321 × £220 = £4,620
ArrivalsLast 72 months · Jul 2020–Jun 202616 flights out of 2,15016 × £220 = £3,520
DeparturesWhole archive · Jan 2018–Jun 20269 flights out of 2,5579 × £220 = £1,980
DeparturesLast 72 months · Jul 2020–Jun 20267 flights out of 2,1477 × £220 = £1,540
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 / countryHAHN / GERMANY
Final point codesHHN / EDFH
Great-circle distance537 km
Maximum statutory amount for the band£220
Average operated arrivals per day1.70
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 archive69

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: 621; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

24.3% of 621 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 621 movements in the same window.

How many delays crossed three hours?

0.5% of 621 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?

537 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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