UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

Isle Of Man

In the twelve months from July 2025 to June 2026, 23.2% of 4,590 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.

Put the other way round, 76.8% of 4,590 movements met the fifteen-minute convention. These are historical observations, not a forecast.

Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Source: CAA punctuality statistics · snapshot 17/08/2026 10:24 · method route-record-v2.1 · Versioned claims, formulas and entity mapping.

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

23.2% of 4,590 movements were disrupted over July 2025 to June 2026.

Average delay covers delayed movements only. Its range reflects rounded source means and the unknown count of exactly punctual movements.

DisruptionShort-notice cancellationsDelay among delayed movementsOver three hours
23.2% of 4,590 movements2.7% of 4,590 movements29.8–69.6 minutes; delayed denominator 938–2,0410.6% of 4,590 movements
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

When late, how late?

0.6% of 4,590 movements passed the three-hour mark.

The ladder shows how many movements crossed each threshold. Cancellations are separate: 2.7% of 4,590 movements.

DelayShare and sampleOne event per movements
More than 15 minutes20.4% of 4,590 movements4.9
More than 30 minutes12.4% of 4,590 movements8.1
More than 60 minutes5.8% of 4,590 movements17.1
More than 120 minutes1.8% of 4,590 movements56.0
More than 180 minutes0.6% of 4,590 movements158.3
More than 360 minutes0.2% of 4,590 movements459.0
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Slightly late or occasionally a disaster?

1.8% of 4,590 movements passed two hours.

The histogram shows the published delay bands. Bucket shares use all reported operations, including unmatched records; cancellations are reported separately.

Nine delay buckets, minutes; share of all recorded operations>15 early66514.5%15–1 early1,75938.3%0–15 late1,10324.0%16–303688.0%31–603026.6%61…1201864.1%121…180531.2%181…360190.4%>360100.2%D=4,590
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Better or worse since the start of the archive?

Best month: Jul 2020, 0.9% of 107 movements. Worst month: Jun 2022, 50.3% of 433 movements.

The line traces every month. Lower disruption is better; gaps are never zeros. Pandemic readings describe a different operating regime.

Monthly disruption share; gaps mean no published dataJan 2018: 17.8%; sample: 5342018Feb 2018: 28.7%; sample: 513Mar 2018: 26.3%; sample: 581Apr 2018: 15.8%; sample: 582May 2018: 21.9%; sample: 635Jun 2018: 22.6%; sample: 633Jul 2018: 25.2%; sample: 563Aug 2018: 21.9%; sample: 562Sep 2018: 19.4%; sample: 547Oct 2018: 17.0%; sample: 572Nov 2018: 25.0%; sample: 539Dec 2018: 21.8%; sample: 522Jan 2019: 15.5%; sample: 5162019Feb 2019: 16.4%; sample: 493Mar 2019: 19.2%; sample: 557Apr 2019: 11.9%; sample: 530May 2019: 15.8%; sample: 606Jun 2019: 24.7%; sample: 583Jul 2019: 20.6%; sample: 558Aug 2019: quarantined×Sep 2019: 16.3%; sample: 557Oct 2019: 14.3%; sample: 561Nov 2019: 12.7%; sample: 487Dec 2019: 18.1%; sample: 493Jan 2020: 17.5%; sample: 4642020Feb 2020: 27.0%; sample: 463Mar 2020: 27.5%; sample: 291Apr 2020: 5.0%; sample: 100May 2020: 3.0%; sample: 99Jun 2020: 20.0%; sample: 100Jul 2020: 0.9%; sample: 107Aug 2020: 6.4%; sample: 125Sep 2020: 8.1%; sample: 111Oct 2020: 9.4%; sample: 106Nov 2020: 8.2%; sample: 98Dec 2020: 11.2%; sample: 98Jan 2021: 9.1%; sample: 992021Feb 2021: 6.2%; sample: 96Mar 2021: 5.6%; sample: 108Apr 2021: 11.2%; sample: 98May 2021: 15.5%; sample: 97Jun 2021: 19.8%; sample: 106Jul 2021: 15.5%; sample: 213Aug 2021: 10.6%; sample: 227Sep 2021: 20.1%; sample: 219Oct 2021: 26.8%; sample: 235Nov 2021: 14.0%; sample: 265Dec 2021: 20.5%; sample: 288Jan 2022: 9.7%; sample: 2162022Feb 2022: 23.8%; sample: 231Mar 2022: 14.4%; sample: 285Apr 2022: 22.1%; sample: 317May 2022: 45.5%; sample: 393Jun 2022: 50.3%; sample: 433Jul 2022: 46.1%; sample: 382Aug 2022: 32.8%; sample: 387Sep 2022: 37.7%; sample: 374Oct 2022: 35.1%; sample: 382Nov 2022: 35.9%; sample: 351Dec 2022: 43.5%; sample: 375Jan 2023: 19.5%; sample: 3692023Feb 2023: 22.2%; sample: 356Mar 2023: 44.0%; sample: 418Apr 2023: 32.9%; sample: 425May 2023: 28.0%; sample: 465Jun 2023: 47.4%; sample: 492Jul 2023: 48.0%; sample: 448Aug 2023: 33.4%; sample: 416Sep 2023: 37.3%; sample: 442Oct 2023: 32.1%; sample: 446Nov 2023: 29.9%; sample: 385Dec 2023: 37.5%; sample: 376Jan 2024: 29.7%; sample: 3032024Feb 2024: 35.3%; sample: 331Mar 2024: 24.0%; sample: 375Apr 2024: 35.5%; sample: 389May 2024: 32.6%; sample: 451Jun 2024: 30.7%; sample: 472Jul 2024: 30.0%; sample: 426Aug 2024: 34.4%; sample: 413Sep 2024: 45.0%; sample: 440Oct 2024: 27.4%; sample: 419Nov 2024: 25.9%; sample: 348Dec 2024: 33.9%; sample: 372Jan 2025: 32.7%; sample: 3272025Feb 2025: 22.5%; sample: 333Mar 2025: 19.6%; sample: 368Apr 2025: 14.4%; sample: 360May 2025: 15.2%; sample: 421Jun 2025: 21.2%; sample: 452Jul 2025: 22.6%; sample: 385Aug 2025: 21.3%; sample: 390Sep 2025: 25.9%; sample: 382Oct 2025: 29.1%; sample: 388Nov 2025: 20.2%; sample: 367Dec 2025: 22.1%; sample: 376Jan 2026: 32.1%; sample: 3332026Feb 2026: 22.1%; sample: 331Mar 2026: 18.6%; sample: 387Apr 2026: 15.4%; sample: 358May 2026: 19.6%; sample: 443Jun 2026: 28.9%; sample: 450Pandemic regime Jun 2020Summer 2022 breakdown Jul 2022NATS system failure Aug 2023Heathrow fire closure Mar 2025100%0%
Every monthly observation
MonthDisruption on arrivals
Jan 201817.8% of 534 movements
Feb 201828.7% of 513 movements
Mar 201826.3% of 581 movements
Apr 201815.8% of 582 movements
May 201821.9% of 635 movements
Jun 201822.6% of 633 movements
Jul 201825.2% of 563 movements
Aug 201821.9% of 562 movements
Sep 201819.4% of 547 movements
Oct 201817.0% of 572 movements
Nov 201825.0% of 539 movements
Dec 201821.8% of 522 movements
Jan 201915.5% of 516 movements
Feb 201916.4% of 493 movements
Mar 201919.2% of 557 movements
Apr 201911.9% of 530 movements
May 201915.8% of 606 movements
Jun 201924.7% of 583 movements
Jul 201920.6% of 558 movements
Aug 2019incomplete data: quarantined
Sep 201916.3% of 557 movements
Oct 201914.3% of 561 movements
Nov 201912.7% of 487 movements
Dec 201918.1% of 493 movements
Jan 202017.5% of 464 movements
Feb 202027.0% of 463 movements
Mar 202027.5% of 291 movements
Apr 20205.0% of 100 movements
May 20203.0% of 99 movements
Jun 202020.0% of 100 movements
Jul 20200.9% of 107 movements
Aug 20206.4% of 125 movements
Sep 20208.1% of 111 movements
Oct 20209.4% of 106 movements
Nov 20208.2% of 98 movements
Dec 202011.2% of 98 movements
Jan 20219.1% of 99 movements
Feb 20216.2% of 96 movements
Mar 20215.6% of 108 movements
Apr 202111.2% of 98 movements
May 202115.5% of 97 movements
Jun 202119.8% of 106 movements
Jul 202115.5% of 213 movements
Aug 202110.6% of 227 movements
Sep 202120.1% of 219 movements
Oct 202126.8% of 235 movements
Nov 202114.0% of 265 movements
Dec 202120.5% of 288 movements
Jan 20229.7% of 216 movements
Feb 202223.8% of 231 movements
Mar 202214.4% of 285 movements
Apr 202222.1% of 317 movements
May 202245.5% of 393 movements
Jun 202250.3% of 433 movements
Jul 202246.1% of 382 movements
Aug 202232.8% of 387 movements
Sep 202237.7% of 374 movements
Oct 202235.1% of 382 movements
Nov 202235.9% of 351 movements
Dec 202243.5% of 375 movements
Jan 202319.5% of 369 movements
Feb 202322.2% of 356 movements
Mar 202344.0% of 418 movements
Apr 202332.9% of 425 movements
May 202328.0% of 465 movements
Jun 202347.4% of 492 movements
Jul 202348.0% of 448 movements
Aug 202333.4% of 416 movements
Sep 202337.3% of 442 movements
Oct 202332.1% of 446 movements
Nov 202329.9% of 385 movements
Dec 202337.5% of 376 movements
Jan 202429.7% of 303 movements
Feb 202435.3% of 331 movements
Mar 202424.0% of 375 movements
Apr 202435.5% of 389 movements
May 202432.6% of 451 movements
Jun 202430.7% of 472 movements
Jul 202430.0% of 426 movements
Aug 202434.4% of 413 movements
Sep 202445.0% of 440 movements
Oct 202427.4% of 419 movements
Nov 202425.9% of 348 movements
Dec 202433.9% of 372 movements
Jan 202532.7% of 327 movements
Feb 202522.5% of 333 movements
Mar 202519.6% of 368 movements
Apr 202514.4% of 360 movements
May 202515.2% of 421 movements
Jun 202521.2% of 452 movements
Jul 202522.6% of 385 movements
Aug 202521.3% of 390 movements
Sep 202525.9% of 382 movements
Oct 202529.1% of 388 movements
Nov 202520.2% of 367 movements
Dec 202522.1% of 376 movements
Jan 202632.1% of 333 movements
Feb 202622.1% of 331 movements
Mar 202618.6% of 387 movements
Apr 202615.4% of 358 movements
May 202619.6% of 443 movements
Jun 202628.9% of 450 movements
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

What did the big disruptions do here?

Each event is compared with the twelve preceding calendar months and the first later return to baseline.

A worse month is not proof the named event caused it. The open data carry no delay-cause field. Recovery is observed for at most eight subsequent months.

EventDirectionDisruption that monthBaseline beforeReturn to baseline
Pandemic regime · Jun 2020Arrivals20.0% of 100 movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Pandemic regime · Jun 2020Departures15.0% of 100 movements16.7% across 5,214 flightsreturned the next month
Summer 2022 breakdown · Jul 2022Arrivals46.1% of 382 movements22.8% across 3,322 flightsreturned after 6 months
Summer 2022 breakdown · Jul 2022Departures39.5% of 382 movements25.0% across 3,323 flightsreturned after 6 months
NATS system failure · Aug 2023Arrivals33.4% of 416 movements35.6% across 4,842 flightsreturned after 2 months
NATS system failure · Aug 2023Departures35.3% of 414 movements34.9% across 4,850 flightsreturned after 2 months
Heathrow fire closure · Mar 2025Arrivals19.6% of 368 movements31.2% across 4,765 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures23.0% of 366 movements30.7% across 4,760 flightsreturned the next month
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Which time of year has been hardest?

Highest median: Aug, 32.8% across 5 months. Lowest median: Apr, 15.8% across 7 months.

Even the same calendar month differs across years. This is a record, not a forecast; pandemic years are excluded from the summaries.

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 nJanFebMarAprMayJunJulAugSepOctNovDec201915.5% of 516 movements16.4% of 493 movements19.2% of 557 movements11.9% of 530 movements15.8% of 606 movements24.7% of 583 movements20.6% of 558 movementsincomplete data: quarantined16.3% of 557 movements14.3% of 561 movements12.7% of 487 movements18.1% of 493 movements202017.5% of 464 movements27.0% of 463 movements27.5% of 291 movements5.0% of 100 movements3.0% of 99 movements20.0% of 100 movements0.9% of 107 movements6.4% of 125 movements8.1% of 111 movements9.4% of 106 movements8.2% of 98 movements11.2% of 98 movements20219.1% of 99 movements6.2% of 96 movements5.6% of 108 movements11.2% of 98 movements15.5% of 97 movements19.8% of 106 movements15.5% of 213 movements10.6% of 227 movements20.1% of 219 movements26.8% of 235 movements14.0% of 265 movements20.5% of 288 movements20229.7% of 216 movements23.8% of 231 movements14.4% of 285 movements22.1% of 317 movements45.5% of 393 movements50.3% of 433 movements46.1% of 382 movements32.8% of 387 movements37.7% of 374 movements35.1% of 382 movements35.9% of 351 movements43.5% of 375 movements202319.5% of 369 movements22.2% of 356 movements44.0% of 418 movements32.9% of 425 movements28.0% of 465 movements47.4% of 492 movements48.0% of 448 movements33.4% of 416 movements37.3% of 442 movements32.1% of 446 movements29.9% of 385 movements37.5% of 376 movements202429.7% of 303 movements35.3% of 331 movements24.0% of 375 movements35.5% of 389 movements32.6% of 451 movements30.7% of 472 movements30.0% of 426 movements34.4% of 413 movements45.0% of 440 movements27.4% of 419 movements25.9% of 348 movements33.9% of 372 movements202532.7% of 327 movements22.5% of 333 movements19.6% of 368 movements14.4% of 360 movements15.2% of 421 movements21.2% of 452 movements22.6% of 385 movements21.3% of 390 movements25.9% of 382 movements29.1% of 388 movements20.2% of 367 movements22.1% of 376 movements202632.1% of 333 movements22.1% of 331 movements18.6% of 387 movements15.4% of 358 movements19.6% of 443 movements28.9% of 450 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan19.5%9.7–32.7%7 months, 2,598 flights
Feb22.5%16.4–35.3%7 months, 2,588 flights
Mar19.6%14.4–44.0%7 months, 2,971 flights
Apr15.8%11.9–35.5%7 months, 2,961 flights
May21.9%15.2–45.5%7 months, 3,414 flights
Jun28.9%21.2–50.3%7 months, 3,515 flights
Jul27.6%20.6–48.0%6 months, 2,762 flights
Aug32.8%21.3–34.4%5 months, 2,168 flights
Sep31.6%16.3–45.0%6 months, 2,742 flights
Oct28.3%14.3–35.1%6 months, 2,768 flights
Nov25.5%12.7–35.9%6 months, 2,477 flights
Dec28.0%18.1–43.5%6 months, 2,514 flights
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Every published route from this airport

The published route directory contains 4 routes. The first table slice is below; continue through the linked directory pages for every route.

The airline table uses this carrier on each route; airport and country tables combine carriers. Each figure is arrivals into its UK airport. Only sufficiently large exact samples enter the ordered comparison.

RouteDisruptionCancellationsSample flag
Isle Of Man ↔ Liverpool (John Lennon)19.4% of 1,043 movements2.7% of 1,043 movementsdescriptive comparison
Isle Of Man ↔ Gatwick20.2% of 684 movements1.2% of 684 movementsdescriptive comparison
Isle Of Man ↔ Dublin25.9% of 533 movements2.4% of 533 movementsdescriptive comparison
Isle Of Man ↔ Manchester26.6% of 891 movements2.2% of 891 movementsdescriptive comparison
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Airlines at this airport

4 published groups have enough arrivals to describe.

These operations are not matched for season, aircraft or time of day. The table makes no causal comparison.

AirlineDisruptionSample flag
BA Cityflyer Ltd53.1% of 49 movements — small sample, not rankedsmall sample; not ranked
Easyjet UK Ltd19.9% of 1,428 movementsdescriptive comparison
Emerald Airlines (Ireland) Limited25.3% of 529 movementsdescriptive comparison
Loganair Ltd23.5% of 2,540 movementsdescriptive comparison
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Arrivals vs departures

23.2% of 4,590 movements arrivals were disrupted, against 24.4% of 4,591 movements departures.

The directions have separate denominators. A departure delay does not establish late arrival at the final destination; legal conditions differ by direction and carrier.

Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Routes that no longer operate from here

60 routes appear in the archive but have no movements in the latest published month.

No commercial closure date or cause is implied. A route may be seasonal or restart in future data; the date is its last observed active month.

Every historical route and its last active month
Historical routeLast active month
IOM ↔ ZURICHMay 2026
IOM ↔ ST-LOUIS-LAMBERTMay 2026
IOM ↔ ROTTERDAMMay 2026
IOM ↔ LYONApr 2026
IOM ↔ GENEVAApr 2026
IOM ↔ SOUTHAMPTONMar 2026
IOM ↔ MALE-INTERNATIONALMar 2026
IOM ↔ TENERIFE-SURREINA-SOFIAFeb 2026
IOM ↔ ENONTEKIOFeb 2026
IOM ↔ ABERDEENFeb 2026
IOM ↔ LAGOSDec 2025
IOM ↔ ROSKILDENov 2025
IOM ↔ PARIS-LE-BOURGETNov 2025
IOM ↔ MALAGANov 2025
IOM ↔ CAPE-TOWNNov 2025
IOM ↔ AMMAN-KING-HUSSEINOct 2025
IOM ↔ ATHENSSep 2025
IOM ↔ CORKAug 2025
IOM ↔ KIRKWALLJul 2025
IOM ↔ MAASTRICHTJun 2025
IOM ↔ ANTWERPJun 2025
IOM ↔ WATERBURY-OXFORDMay 2025
IOM ↔ LISBONMay 2025
IOM ↔ FRANKFURT-MAINMay 2025
IOM ↔ WHITE-PLAINSApr 2025
IOM ↔ LEEDS-BRADFORDApr 2025
IOM ↔ KERRY-COUNTYApr 2025
IOM ↔ FARNBOROUGHMar 2025
IOM ↔ VERONA-VILLAFRANCAFeb 2025
IOM ↔ CAIROFeb 2025
IOM ↔ NEWCASTLEJan 2025
IOM ↔ ARRECIFEJan 2025
IOM ↔ STANSTEDDec 2024
IOM ↔ GUERNSEYDec 2024
IOM ↔ BIGGIN-HILLNov 2024
IOM ↔ BELFAST-INTERNATIONALOct 2024
IOM ↔ SALZBURGAug 2024
IOM ↔ BERGAMOApr 2024
IOM ↔ ST-JOHNSMar 2024
IOM ↔ NORTHOLTMar 2024
IOM ↔ BRIDGETOWNJan 2024
IOM ↔ UNKNOWNNov 2023
IOM ↔ TBILISIOct 2023
IOM ↔ SAO-TOMEAug 2023
IOM ↔ TEESSIDE-INTERNATIONAL-AIRPORTJan 2023
IOM ↔ STOCKHOLM-BROMMAJun 2022
IOM ↔ INVERNESSDec 2021
IOM ↔ JERSEYSep 2021
IOM ↔ SOUTHENDMar 2020
IOM ↔ STOCKHOLM-ARLANDAJun 2019
IOM ↔ PARIS-CHARLES-DE-GAULLEJun 2019
IOM ↔ MILAN-MALPENSAJun 2019
IOM ↔ MAHONJun 2019
IOM ↔ GLASGOWJun 2019
IOM ↔ AKUREYRIMar 2019
IOM ↔ PAJALA-YLLASDec 2018
IOM ↔ COLOGNE-BONNDec 2018
IOM ↔ FUNCHALNov 2018
IOM ↔ NORWICHJun 2018
IOM ↔ PRESTWICKMay 2018
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Facts about this record

Isle Of Man appears from Jan 2018 to Jun 2026 with 38,149 arrivals.

The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.

Archive route pairs: 79.

Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

What this data cannot tell you

Delay cause, individual passenger experience, commercial decisions and future performance are not established here.

Also absent are aircraft type, within-month time-of-day splits and cancellations made ahead of the short-notice reporting window.

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.

Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Quick answers

These answers use the same populations and window as the tables above.

Every percentage retains its denominator.

How disrupted are these arrivals?

23.2% of 4,590 movements over July 2025 to June 2026.

How often are they cancelled?

2.7% of 4,590 movements at short notice.

How late is late?

29.8–69.6 minutes; delayed denominator 938–2,041

Are services improving?

The monthly line records past changes; it is not a forecast or a causal comparison.

Which routes are compared?

The route table uses separately identified UK airport and final-point pairs, with small samples flagged.

Does this cover my flight?

Only published aggregate movements; the circumstances of any individual flight are unknown.

Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

How this was calculated

Source: CAA punctuality statistics · snapshot 17/08/2026 10:24 · method route-record-v2.1 · Versioned claims, formulas and entity mapping.

Integer bucket counts are recovered from rounding intervals over D=M+C+U with their sum constrained to M. Ambiguous counts remain ranges; failed reconciliation is quarantined.

Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.

Your trip has already gone wrong

The monthly line and events table show whether your month was typical or unusual in the published record.

Nothing here decides an individual case or what a passenger may be owed.

CAA: the official route to complain
Definitions, denominators and limits

Arrivals into UK reporting airports only unless labelled departures. Denominator: operated movements plus short-notice cancellations (M+C). A movement is not a scheduled flight. Unmatched records are data quality, not outcomes. Cells below twenty movements are suppressed; twenty to forty-nine are descriptive and not ranked.