UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

LCY ↔ AMS

In the twelve months from July 2025 to June 2026, 16.7% of 3,758 movements arriving into LCY were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.

Put the other way round, 83.3% of 3,758 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 376 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, 16.7% of 3,758 movements were disrupted and 2.8% of 3,758 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
16.7% of 3,758 movements2.8% of 3,758 movements19.9–63.6 min; N of delayed flights=522–1,4843,758
Definitions, denominators and limits

The bounds account for CAA rounding and the unknown number of zero delays. A point average across all operated movements, including punctual ones, would answer a different question and is not used here.

When it is late, how late is it?

Most delays here are short. The ladder below shows how many arrivals crossed each threshold, from a quarter of an hour up to six hours; each rung can only be smaller than the one above it.

Cancellations are counted separately: 2.8% of 3,758 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 min13.9%30 min7.7%60 min3.3%120 min1.0%180 min0.3%360 min0.1%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min13.9% of 3,758 movements5227.2
>30 min7.7% of 3,758 movements29112.9
>60 min3.3% of 3,758 movements12430.3
>120 min1.0% of 3,758 movements36104.4
>180 min0.3% of 3,758 movements10375.8
>360 min0.1% of 3,758 movements21,879.0
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 early3709.8%15–1 early1,79847.8%0–15 late96225.6%16–302316.1%31–601674.4%61…120882.3%121…180260.7%181…36080.2%>36020.1%D=3,758
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0251; 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 2020, 4.0% of 75 movements. Worst month: Jun 2022, 38.2% of 314 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: 18.3%; sample: 3392018Feb 2018: 28.4%; sample: 356Mar 2018: 23.2%; sample: 383Apr 2018: 21.2%; sample: 358May 2018: 24.9%; sample: 382Jun 2018: 25.7%; sample: 358Jul 2018: 19.6%; sample: 311Aug 2018: 11.5%; sample: 304Sep 2018: 17.1%; sample: 369Oct 2018: 18.1%; sample: 415Nov 2018: suppressed: fewer than twenty movements×Dec 2018: suppressed: fewer than twenty movements×Jan 2019: 19.0%; sample: 3842019Feb 2019: 24.7%; sample: 369Mar 2019: 32.8%; sample: 408Apr 2019: 16.5%; sample: 388May 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: 11.0%; sample: 3812020Feb 2020: 27.0%; sample: 392Mar 2020: 26.4%; sample: 276Apr 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: 32Sep 2020: 7.9%; sample: 63Oct 2020: 4.0%; sample: 75Nov 2020: 3.2%; sample: 31Dec 2020: 10.7%; sample: 28Jan 2021: 27.1%; sample: 482021Feb 2021: suppressed: fewer than twenty movements×Mar 2021: suppressed: fewer than twenty movements×Apr 2021: 26.7%; sample: 30May 2021: 3.2%; sample: 31Jun 2021: 4.8%; sample: 42Jul 2021: 5.7%; sample: 53Aug 2021: 23.1%; sample: 52Sep 2021: 12.7%; sample: 118Oct 2021: 9.3%; sample: 140Nov 2021: 6.0%; sample: 166Dec 2021: 20.1%; sample: 149Jan 2022: 24.0%; sample: 1212022Feb 2022: 19.7%; sample: 127Mar 2022: 11.5%; sample: 209Apr 2022: 32.2%; sample: 298May 2022: 27.6%; sample: 330Jun 2022: 38.2%; sample: 314Jul 2022: 25.7%; sample: 214Aug 2022: 24.2%; sample: 211Sep 2022: 28.5%; sample: 302Oct 2022: 20.9%; sample: 277Nov 2022: 12.5%; sample: 289Dec 2022: 25.3%; sample: 257Jan 2023: 7.3%; sample: 2622023Feb 2023: 12.9%; sample: 255Mar 2023: 26.6%; sample: 297Apr 2023: 16.0%; sample: 337May 2023: 26.5%; sample: 374Jun 2023: 31.9%; sample: 361Jul 2023: 29.1%; sample: 278Aug 2023: 19.8%; sample: 293Sep 2023: 24.9%; sample: 334Oct 2023: 34.0%; sample: 371Nov 2023: 21.2%; sample: 359Dec 2023: 31.7%; sample: 319Jan 2024: 26.8%; sample: 3282024Feb 2024: 14.6%; sample: 343Mar 2024: 19.0%; sample: 363Apr 2024: 20.3%; sample: 354May 2024: 20.6%; sample: 355Jun 2024: 15.8%; sample: 322Jul 2024: 21.8%; sample: 285Aug 2024: 9.4%; sample: 277Sep 2024: 24.7%; sample: 336Oct 2024: 18.6%; sample: 370Nov 2024: 28.9%; sample: 343Dec 2024: 25.3%; sample: 312Jan 2025: 25.7%; sample: 3152025Feb 2025: 12.3%; sample: 318Mar 2025: 13.0%; sample: 354Apr 2025: 9.1%; sample: 351May 2025: 13.3%; sample: 339Jun 2025: 15.7%; sample: 305Jul 2025: 19.7%; sample: 264Aug 2025: 15.1%; sample: 259Sep 2025: 28.5%; sample: 337Oct 2025: 15.9%; sample: 364Nov 2025: 11.0%; sample: 345Dec 2025: 16.3%; sample: 337Jan 2026: 24.6%; sample: 2642026Feb 2026: 13.5%; sample: 304Mar 2026: 16.7%; sample: 353Apr 2026: 12.6%; sample: 326May 2026: 9.2%; sample: 303Jun 2026: 18.5%; sample: 302Pandemic 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 201818.3% of 339 movements
Feb 201828.4% of 356 movements
Mar 201823.2% of 383 movements
Apr 201821.2% of 358 movements
May 201824.9% of 382 movements
Jun 201825.7% of 358 movements
Jul 201819.6% of 311 movements
Aug 201811.5% of 304 movements
Sep 201817.1% of 369 movements
Oct 201818.1% of 415 movements
Nov 2018suppressed: fewer than twenty movements
Dec 2018suppressed: fewer than twenty movements
Jan 201919.0% of 384 movements
Feb 201924.7% of 369 movements
Mar 201932.8% of 408 movements
Apr 201916.5% of 388 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 202011.0% of 381 movements
Feb 202027.0% of 392 movements
Mar 202026.4% of 276 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 32 movements — small sample, not ranked
Sep 20207.9% of 63 movements
Oct 20204.0% of 75 movements
Nov 20203.2% of 31 movements — small sample, not ranked
Dec 202010.7% of 28 movements — small sample, not ranked
Jan 202127.1% of 48 movements — small sample, not ranked
Feb 2021suppressed: fewer than twenty movements
Mar 2021suppressed: fewer than twenty movements
Apr 202126.7% of 30 movements — small sample, not ranked
May 20213.2% of 31 movements — small sample, not ranked
Jun 20214.8% of 42 movements — small sample, not ranked
Jul 20215.7% of 53 movements
Aug 202123.1% of 52 movements
Sep 202112.7% of 118 movements
Oct 20219.3% of 140 movements
Nov 20216.0% of 166 movements
Dec 202120.1% of 149 movements
Jan 202224.0% of 121 movements
Feb 202219.7% of 127 movements
Mar 202211.5% of 209 movements
Apr 202232.2% of 298 movements
May 202227.6% of 330 movements
Jun 202238.2% of 314 movements
Jul 202225.7% of 214 movements
Aug 202224.2% of 211 movements
Sep 202228.5% of 302 movements
Oct 202220.9% of 277 movements
Nov 202212.5% of 289 movements
Dec 202225.3% of 257 movements
Jan 20237.3% of 262 movements
Feb 202312.9% of 255 movements
Mar 202326.6% of 297 movements
Apr 202316.0% of 337 movements
May 202326.5% of 374 movements
Jun 202331.9% of 361 movements
Jul 202329.1% of 278 movements
Aug 202319.8% of 293 movements
Sep 202324.9% of 334 movements
Oct 202334.0% of 371 movements
Nov 202321.2% of 359 movements
Dec 202331.7% of 319 movements
Jan 202426.8% of 328 movements
Feb 202414.6% of 343 movements
Mar 202419.0% of 363 movements
Apr 202420.3% of 354 movements
May 202420.6% of 355 movements
Jun 202415.8% of 322 movements
Jul 202421.8% of 285 movements
Aug 20249.4% of 277 movements
Sep 202424.7% of 336 movements
Oct 202418.6% of 370 movements
Nov 202428.9% of 343 movements
Dec 202425.3% of 312 movements
Jan 202525.7% of 315 movements
Feb 202512.3% of 318 movements
Mar 202513.0% of 354 movements
Apr 20259.1% of 351 movements
May 202513.3% of 339 movements
Jun 202515.7% of 305 movements
Jul 202519.7% of 264 movements
Aug 202515.1% of 259 movements
Sep 202528.5% of 337 movements
Oct 202515.9% of 364 movements
Nov 202511.0% of 345 movements
Dec 202516.3% of 337 movements
Jan 202624.6% of 264 movements
Feb 202613.5% of 304 movements
Mar 202616.7% of 353 movements
Apr 202612.6% of 326 movements
May 20269.2% of 303 movements
Jun 202618.5% of 302 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 2022Arrivals25.7% of 214 movements19.2% across 2,077 flightsreturned after 4 months
Summer 2022 breakdown · Jul 2022Departures45.1% of 213 movements26.3% across 2,088 flightsreturned after 3 months
NATS system failure · Aug 2023Arrivals19.8% of 293 movements21.8% across 3,500 flightsreturned after 3 months
NATS system failure · Aug 2023Departures33.3% of 291 movements32.5% across 3,518 flightsreturned the next month
Heathrow fire closure · Mar 2025Arrivals13.0% of 354 movements20.2% across 3,950 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures22.2% of 351 movements32.3% across 3,961 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?

December has historically been the hardest month on this route: in a typical December, 25.3% of arrivals were disrupted, measured across 4 Decembers in the archive. February has been the calmest, at 14.6% across 7 Februarys.

Even December has ranged from 16.3% to 31.7% in different years, so this is a record of what happened, not a forecast of what will. Lower is better throughout.

Each cell is one calendar month of one year; the number is the share of that month’s arrivals that were disrupted. Darker means worse. A blank cell means no published data, not zero.

Seasonality: calendar month by year; share and nJanFebMarAprMayJunJulAugSepOctNovDec201919.0% of 384 movements24.7% of 369 movements32.8% of 408 movements16.5% of 388 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 movements202011.0% of 381 movements27.0% of 392 movements26.4% of 276 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementsno events in 32 movements †7.9% of 63 movements4.0% of 75 movements3.2% of 31 movements †10.7% of 28 movements †202127.1% of 48 movements †suppressed: fewer than twenty movementssuppressed: fewer than twenty movements26.7% of 30 movements †3.2% of 31 movements †4.8% of 42 movements †5.7% of 53 movements23.1% of 52 movements12.7% of 118 movements9.3% of 140 movements6.0% of 166 movements20.1% of 149 movements202224.0% of 121 movements19.7% of 127 movements11.5% of 209 movements32.2% of 298 movements27.6% of 330 movements38.2% of 314 movements25.7% of 214 movements24.2% of 211 movements28.5% of 302 movements20.9% of 277 movements12.5% of 289 movements25.3% of 257 movements20237.3% of 262 movements12.9% of 255 movements26.6% of 297 movements16.0% of 337 movements26.5% of 374 movements31.9% of 361 movements29.1% of 278 movements19.8% of 293 movements24.9% of 334 movements34.0% of 371 movements21.2% of 359 movements31.7% of 319 movements202426.8% of 328 movements14.6% of 343 movements19.0% of 363 movements20.3% of 354 movements20.6% of 355 movements15.8% of 322 movements21.8% of 285 movements9.4% of 277 movements24.7% of 336 movements18.6% of 370 movements28.9% of 343 movements25.3% of 312 movements202525.7% of 315 movements12.3% of 318 movements13.0% of 354 movements9.1% of 351 movements13.3% of 339 movements15.7% of 305 movements19.7% of 264 movements15.1% of 259 movements28.5% of 337 movements15.9% of 364 movements11.0% of 345 movements16.3% of 337 movements202624.6% of 264 movements13.5% of 304 movements16.7% of 353 movements12.6% of 326 movements9.2% of 303 movements18.5% of 302 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan24.0%7.3–26.8%7 months, 2,013 flights
Feb14.6%12.3–28.4%7 months, 2,072 flights
Mar19.0%11.5–32.8%7 months, 2,367 flights
Apr16.5%9.1–32.2%7 months, 2,412 flights
May22.7%9.2–27.6%6 months, 2,083 flights
Jun22.1%15.7–38.2%6 months, 1,962 flights
Jul21.8%19.6–29.1%5 months, 1,352 flights
Aug15.1%9.4–24.2%5 months, 1,344 flights
Sep24.9%17.1–28.5%5 months, 1,678 flights
Oct18.6%15.9–34.0%5 months, 1,797 flights
Nov16.8%11.0–28.9%4 months, 1,336 flights
Dec25.3%16.3–31.7%4 months, 1,225 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: Klm 15.1% of 2,194 movements, Ba Cityflyer 18.9% of 1,564 movements. Observed shares differ; the mix of operations is not matched, so no causal conclusion follows.

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 optionBa Cityflyer18.9% of 1,564 flightsKlm15.1% of 2,194 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Ba Cityflyer1,56418.9% of 1,564 movements1.9% of 1,564 movements0.6% of 1,564 movementsdescriptive comparison
City Jetsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Flybesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Klm2,19415.1% of 2,194 movements3.5% of 2,194 movements0.0% of 2,194 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, EXT had the lowest disruption share at 18.5% of 356 movements and BFS the highest at 41.3% of 213 movements. This route sits at 16.7% of 3,758 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
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
Mme ↔ Ams84623.0% of 846 movements4.3% of 846 movements0.4% of 846 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?

Yes: arrivals into LCY ran 16.7% of 3,758 movements disrupted, departures 31.5% of 3,770 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 LCY16.7% of 3,758 movements2.8% of 3,758 movements0.3% of 3,758 movements
Departures from LCY31.5% of 3,770 movements3.1% of 3,770 movements0.2% of 3,770 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 23,84949 × £220 = £10,780
ArrivalsLast 72 months · Jul 2020–Jun 202635 flights out of 17,59835 × £220 = £7,700
DeparturesWhole archive · Jan 2018–Jun 202649 flights out of 23,96449 × £220 = £10,780
DeparturesLast 72 months · Jul 2020–Jun 202638 flights out of 17,66038 × £220 = £8,360
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 airportLONDON CITY · LCY
Final point / countryAMSTERDAM / NETHERLANDS
Final point codesAMS / EHAM
Great-circle distance335 km
Maximum statutory amount for the band£220
Average operated arrivals per day10.01
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 archive98

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: 3,758; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

16.7% of 3,758 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

2.8% of 3,758 movements in the same window.

How many delays crossed three hours?

0.3% of 3,758 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?

335 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

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