UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

Vueling Airlines

In the twelve months from July 2025 to June 2026, 18.4% of 11,134 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.

Put the other way round, 81.6% of 11,134 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

18.4% of 11,134 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
18.4% of 11,134 movements0.7% of 11,134 movements23.0–56.4 minutes; delayed denominator 1,970–4,3560.2% of 11,134 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?

0.2% of 11,134 movements passed the three-hour mark.

The ladder shows how many movements crossed each threshold. Cancellations are separate: 0.7% of 11,134 movements.

DelayShare and sampleOne event per movements
More than 15 minutes17.7% of 11,134 movements5.7
More than 30 minutes9.5% of 11,134 movements10.5
More than 60 minutes3.9% of 11,134 movements26.0
More than 120 minutes0.9% of 11,134 movements108.1
More than 180 minutes0.2% of 11,134 movements506.1
More than 360 minutes0.0% of 11,134 movements11,134.0
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?

0.9% of 11,134 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 early2,57223.1%15–1 early4,12937.1%0–15 late2,38621.4%16–309088.2%31–606335.7%61…1203262.9%121…180810.7%181…360210.2%>36010.0%D=11,134
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: Jun 2021, 2.2% of 136 movements. Worst month: Jul 2018, 48.1% of 678 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: 16.2%; sample: 5262018Feb 2018: 24.6%; sample: 533Mar 2018: 19.5%; sample: 616Apr 2018: 26.7%; sample: 636May 2018: 41.7%; sample: 695Jun 2018: 46.8%; sample: 677Jul 2018: 48.1%; sample: 678Aug 2018: 44.5%; sample: 672Sep 2018: 34.5%; sample: 647Oct 2018: 35.8%; sample: 632Nov 2018: 28.2%; sample: 458Dec 2018: 28.4%; sample: 496Jan 2019: 21.9%; sample: 4712019Feb 2019: 22.3%; sample: 489Mar 2019: 21.0%; sample: 568Apr 2019: 20.8%; sample: 693May 2019: 32.7%; sample: 727Jun 2019: 32.0%; sample: 716Jul 2019: 45.7%; sample: 739Aug 2019: 41.2%; sample: 730Sep 2019: 39.6%; sample: 713Oct 2019: 22.7%; sample: 686Nov 2019: 14.5%; sample: 539Dec 2019: 20.9%; sample: 564Jan 2020: 15.9%; sample: 5412020Feb 2020: 22.1%; sample: 516Mar 2020: 41.0%; sample: 344Apr 2020: suppressed: fewer than twenty movements×May 2020: suppressed: fewer than twenty movements×Jun 2020: suppressed: fewer than twenty movements×Jul 2020: 3.5%; sample: 114Aug 2020: 4.4%; sample: 206Sep 2020: 7.5%; sample: 146Oct 2020: 4.9%; sample: 123Nov 2020: 2.9%; sample: 35Dec 2020: 8.7%; sample: 69Jan 2021: 8.3%; sample: 362021Feb 2021: suppressed: fewer than twenty movements×Mar 2021: 0.0%; sample: 26Apr 2021: 5.0%; sample: 40May 2021: 4.1%; sample: 121Jun 2021: 2.2%; sample: 136Jul 2021: 4.7%; sample: 234Aug 2021: 8.7%; sample: 333Sep 2021: 5.4%; sample: 276Oct 2021: 3.9%; sample: 153Nov 2021: 10.7%; sample: 214Dec 2021: 9.2%; sample: 282Jan 2022: 8.9%; sample: 1902022Feb 2022: 11.4%; sample: 175Mar 2022: 3.2%; sample: 249Apr 2022: 12.1%; sample: 829May 2022: 15.7%; sample: 888Jun 2022: 23.0%; sample: 919Jul 2022: 27.5%; sample: 918Aug 2022: 27.6%; sample: 965Sep 2022: 34.4%; sample: 922Oct 2022: 19.2%; sample: 915Nov 2022: 11.6%; sample: 543Dec 2022: 21.9%; sample: 652Jan 2023: 10.5%; sample: 6492023Feb 2023: 14.8%; sample: 667Mar 2023: 33.9%; sample: 749Apr 2023: 20.3%; sample: 874May 2023: 21.9%; sample: 921Jun 2023: 30.2%; sample: 888Jul 2023: 37.8%; sample: 944Aug 2023: 32.1%; sample: 945Sep 2023: 35.9%; sample: 894Oct 2023: 23.9%; sample: 905Nov 2023: 16.2%; sample: 746Dec 2023: 22.2%; sample: 783Jan 2024: 11.4%; sample: 6682024Feb 2024: 17.3%; sample: 718Mar 2024: 11.7%; sample: 775Apr 2024: 14.3%; sample: 937May 2024: 19.0%; sample: 1000Jun 2024: 30.2%; sample: 1018Jul 2024: 29.7%; sample: 1053Aug 2024: 30.5%; sample: 1054Sep 2024: 45.4%; sample: 1005Oct 2024: 31.7%; sample: 960Nov 2024: 19.4%; sample: 885Dec 2024: 26.3%; sample: 928Jan 2025: 16.4%; sample: 7762025Feb 2025: 9.9%; sample: 840Mar 2025: 14.5%; sample: 933Apr 2025: 9.4%; sample: 1001May 2025: 14.3%; sample: 1121Jun 2025: 16.9%; sample: 1115Jul 2025: 33.8%; sample: 1143Aug 2025: 22.0%; sample: 1138Sep 2025: 28.3%; sample: 1096Oct 2025: 18.9%; sample: 981Nov 2025: 11.4%; sample: 781Dec 2025: 13.0%; sample: 863Jan 2026: 10.6%; sample: 7172026Feb 2026: 14.0%; sample: 729Mar 2026: 18.6%; sample: 893Apr 2026: 6.9%; sample: 883May 2026: 12.9%; sample: 958Jun 2026: 19.5%; sample: 952Pandemic regime Jun 2020Summer 2022 breakdown Jul 2022NATS system failure Aug 2023Heathrow fire closure Mar 2025100%0%
Every monthly observation
MonthDisruption on arrivals
Jan 201816.2% of 526 movements
Feb 201824.6% of 533 movements
Mar 201819.5% of 616 movements
Apr 201826.7% of 636 movements
May 201841.7% of 695 movements
Jun 201846.8% of 677 movements
Jul 201848.1% of 678 movements
Aug 201844.5% of 672 movements
Sep 201834.5% of 647 movements
Oct 201835.8% of 632 movements
Nov 201828.2% of 458 movements
Dec 201828.4% of 496 movements
Jan 201921.9% of 471 movements
Feb 201922.3% of 489 movements
Mar 201921.0% of 568 movements
Apr 201920.8% of 693 movements
May 201932.7% of 727 movements
Jun 201932.0% of 716 movements
Jul 201945.7% of 739 movements
Aug 201941.2% of 730 movements
Sep 201939.6% of 713 movements
Oct 201922.7% of 686 movements
Nov 201914.5% of 539 movements
Dec 201920.9% of 564 movements
Jan 202015.9% of 541 movements
Feb 202022.1% of 516 movements
Mar 202041.0% of 344 movements
Apr 2020suppressed: fewer than twenty movements
May 2020suppressed: fewer than twenty movements
Jun 2020suppressed: fewer than twenty movements
Jul 20203.5% of 114 movements
Aug 20204.4% of 206 movements
Sep 20207.5% of 146 movements
Oct 20204.9% of 123 movements
Nov 20202.9% of 35 movements — small sample, not ranked
Dec 20208.7% of 69 movements
Jan 20218.3% of 36 movements — small sample, not ranked
Feb 2021suppressed: fewer than twenty movements
Mar 2021no events in 26 movements — small sample, not ranked
Apr 20215.0% of 40 movements — small sample, not ranked
May 20214.1% of 121 movements
Jun 20212.2% of 136 movements
Jul 20214.7% of 234 movements
Aug 20218.7% of 333 movements
Sep 20215.4% of 276 movements
Oct 20213.9% of 153 movements
Nov 202110.7% of 214 movements
Dec 20219.2% of 282 movements
Jan 20228.9% of 190 movements
Feb 202211.4% of 175 movements
Mar 20223.2% of 249 movements
Apr 202212.1% of 829 movements
May 202215.7% of 888 movements
Jun 202223.0% of 919 movements
Jul 202227.5% of 918 movements
Aug 202227.6% of 965 movements
Sep 202234.4% of 922 movements
Oct 202219.2% of 915 movements
Nov 202211.6% of 543 movements
Dec 202221.9% of 652 movements
Jan 202310.5% of 649 movements
Feb 202314.8% of 667 movements
Mar 202333.9% of 749 movements
Apr 202320.3% of 874 movements
May 202321.9% of 921 movements
Jun 202330.2% of 888 movements
Jul 202337.8% of 944 movements
Aug 202332.1% of 945 movements
Sep 202335.9% of 894 movements
Oct 202323.9% of 905 movements
Nov 202316.2% of 746 movements
Dec 202322.2% of 783 movements
Jan 202411.4% of 668 movements
Feb 202417.3% of 718 movements
Mar 202411.7% of 775 movements
Apr 202414.3% of 937 movements
May 202419.0% of 1,000 movements
Jun 202430.2% of 1,018 movements
Jul 202429.7% of 1,053 movements
Aug 202430.5% of 1,054 movements
Sep 202445.4% of 1,005 movements
Oct 202431.7% of 960 movements
Nov 202419.4% of 885 movements
Dec 202426.3% of 928 movements
Jan 202516.4% of 776 movements
Feb 20259.9% of 840 movements
Mar 202514.5% of 933 movements
Apr 20259.4% of 1,001 movements
May 202514.3% of 1,121 movements
Jun 202516.9% of 1,115 movements
Jul 202533.8% of 1,143 movements
Aug 202522.0% of 1,138 movements
Sep 202528.3% of 1,096 movements
Oct 202518.9% of 981 movements
Nov 202511.4% of 781 movements
Dec 202513.0% of 863 movements
Jan 202610.6% of 717 movements
Feb 202614.0% of 729 movements
Mar 202618.6% of 893 movements
Apr 20266.9% of 883 movements
May 202612.9% of 958 movements
Jun 202619.5% of 952 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 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 2022Arrivals27.5% of 918 movements9.7% across 4,742 flightsstill above it 8 months later
Summer 2022 breakdown · Jul 2022Departures52.2% of 913 movements18.0% across 4,737 flightsstill above it 8 months later
NATS system failure · Aug 2023Arrivals32.1% of 945 movements23.7% across 9,689 flightsreturned after 3 months
NATS system failure · Aug 2023Departures56.0% of 945 movements39.8% across 9,697 flightsreturned after 2 months
Heathrow fire closure · Mar 2025Arrivals14.5% of 933 movements23.7% across 11,231 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures25.2% of 933 movements38.0% across 11,216 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: Jul, 35.8% across 6 months. Lowest median: Jan, 11.4% 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 nJanFebMarAprMayJunJulAugSepOctNovDec201921.9% of 471 movements22.3% of 489 movements21.0% of 568 movements20.8% of 693 movements32.7% of 727 movements32.0% of 716 movements45.7% of 739 movements41.2% of 730 movements39.6% of 713 movements22.7% of 686 movements14.5% of 539 movements20.9% of 564 movements202015.9% of 541 movements22.1% of 516 movements41.0% of 344 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements3.5% of 114 movements4.4% of 206 movements7.5% of 146 movements4.9% of 123 movements2.9% of 35 movements †8.7% of 69 movements20218.3% of 36 movements †suppressed: fewer than twenty movementsno events in 26 movements †5.0% of 40 movements †4.1% of 121 movements2.2% of 136 movements4.7% of 234 movements8.7% of 333 movements5.4% of 276 movements3.9% of 153 movements10.7% of 214 movements9.2% of 282 movements20228.9% of 190 movements11.4% of 175 movements3.2% of 249 movements12.1% of 829 movements15.7% of 888 movements23.0% of 919 movements27.5% of 918 movements27.6% of 965 movements34.4% of 922 movements19.2% of 915 movements11.6% of 543 movements21.9% of 652 movements202310.5% of 649 movements14.8% of 667 movements33.9% of 749 movements20.3% of 874 movements21.9% of 921 movements30.2% of 888 movements37.8% of 944 movements32.1% of 945 movements35.9% of 894 movements23.9% of 905 movements16.2% of 746 movements22.2% of 783 movements202411.4% of 668 movements17.3% of 718 movements11.7% of 775 movements14.3% of 937 movements19.0% of 1,000 movements30.2% of 1,018 movements29.7% of 1,053 movements30.5% of 1,054 movements45.4% of 1,005 movements31.7% of 960 movements19.4% of 885 movements26.3% of 928 movements202516.4% of 776 movements9.9% of 840 movements14.5% of 933 movements9.4% of 1,001 movements14.3% of 1,121 movements16.9% of 1,115 movements33.8% of 1,143 movements22.0% of 1,138 movements28.3% of 1,096 movements18.9% of 981 movements11.4% of 781 movements13.0% of 863 movements202610.6% of 717 movements14.0% of 729 movements18.6% of 893 movements6.9% of 883 movements12.9% of 958 movements19.5% of 952 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan11.4%8.9–21.9%7 months, 3,997 flights
Feb14.8%9.9–24.6%7 months, 4,151 flights
Mar18.6%3.2–33.9%7 months, 4,783 flights
Apr14.3%6.9–26.7%7 months, 5,853 flights
May19.0%12.9–41.7%7 months, 6,310 flights
Jun30.2%16.9–46.8%7 months, 6,285 flights
Jul35.8%27.5–48.1%6 months, 5,475 flights
Aug31.3%22.0–44.5%6 months, 5,504 flights
Sep35.2%28.3–45.4%6 months, 5,277 flights
Oct23.3%18.9–35.8%6 months, 5,079 flights
Nov15.3%11.4–28.2%6 months, 3,952 flights
Dec22.1%13.0–28.4%6 months, 4,286 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.

Which routes have the best and worst record?

Lowest disruption: LHR ↔ SEVILLE, 6.4% of 94 movements. Highest disruption: LGW ↔ ROME-FIUMICINO, 40.2% of 301 movements.

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.

Observed disruption share by optionLhr ↔ Seville6.4% of 94 flightsBhx ↔ Barcelona7.9% of 214 flightsLhr ↔ Paris-Orly9.2% of 348 flightsMan ↔ Barcelona26.7% of 532 flightsLgw ↔ A-Coruna28.5% of 158 flightsLgw ↔ Rome-Fiumicino40.2% of 301 flights
All route comparisons and sample flags
RouteDisruptionCancellationsSample flag
LHR ↔ SEVILLE6.4% of 94 movementsno events in 94 movementsdescriptive comparison
Birmingham ↔ Barcelona7.9% of 214 movements0.5% of 214 movementsdescriptive comparison
LHR ↔ PARIS-ORLY9.2% of 348 movements0.6% of 348 movementsdescriptive comparison
Gatwick ↔ Bilbao10.0% of 1,034 movements0.7% of 1,034 movementsdescriptive comparison
LGW ↔ PARIS-ORLY13.3% of 535 movements1.9% of 535 movementsdescriptive comparison
LGW ↔ SANTIAGO-DE-COMPOSTELA-SPAIN13.3% of 143 movementsno events in 143 movementsdescriptive comparison
LHR ↔ SANTIAGO-DE-COMPOSTELA-SPAIN14.0% of 300 movements0.7% of 300 movementsdescriptive comparison
Edinburgh ↔ Barcelona14.1% of 191 movementsno events in 191 movementsdescriptive comparison
Gatwick ↔ Seville14.6% of 561 movements0.5% of 561 movementsdescriptive comparison
Gatwick ↔ Valencia15.5% of 291 movements0.3% of 291 movementsdescriptive comparison
Heathrow ↔ Barcelona17.2% of 721 movements0.6% of 721 movementsdescriptive comparison
LHR ↔ BILBAO17.4% of 362 movements0.3% of 362 movementsdescriptive comparison
Gatwick ↔ Malaga18.4% of 937 movements0.3% of 937 movementsdescriptive comparison
Gatwick ↔ Barcelona20.3% of 2,591 movements0.9% of 2,591 movementsdescriptive comparison
CWL ↔ MALAGA20.7% of 121 movements0.8% of 121 movementsdescriptive comparison
CWL ↔ ALICANTE21.1% of 152 movementsno events in 152 movementsdescriptive comparison
LGW ↔ ASTURIAS22.3% of 251 movements0.4% of 251 movementsdescriptive comparison
Gatwick ↔ Alicante22.7% of 441 movementsno events in 441 movementsdescriptive comparison
Gatwick ↔ Florence23.7% of 775 movements1.4% of 775 movementsdescriptive comparison
Manchester ↔ Barcelona26.7% of 532 movements0.9% of 532 movementsdescriptive comparison
LGW ↔ A-CORUNA28.5% of 158 movements0.6% of 158 movementsdescriptive comparison
Gatwick ↔ Rome (Fiumicino)40.2% of 301 movementsno events in 301 movementsdescriptive comparison
EDI ↔ BILBAOno events in 23 movements — small sample, not rankedno events in 23 movements — small sample, not rankedsmall sample; not ranked
LHR ↔ A-CORUNA11.4% of 35 movements — small sample, not rankedno events in 35 movements — small sample, not rankedsmall sample; not ranked
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 UK airports appear in this record?

6 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.

UK airportDisruptionSample flag
Birmingham7.9% of 214 movementsdescriptive comparison
Cardiff Wales21.9% of 283 movementsdescriptive comparison
Edinburgh13.3% of 226 movementsdescriptive comparison
Gatwick19.0% of 8,019 movementsdescriptive comparison
Heathrow14.6% of 1,860 movementsdescriptive comparison
Manchester26.7% of 532 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

18.4% of 11,134 movements arrivals were disrupted, against 32.3% of 11,134 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.

Movements past the three-hour mark

0.2% of 11,134 movements were more than three hours late over July 2025 to June 2026.

Cancellation is counted separately and is not a three-hour delay. Monthly counts cannot establish a passenger claim.

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

Vueling Airlines appears from Jan 2018 to Jun 2026 with 64,930 arrivals.

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

Archive route pairs: 139.

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?

18.4% of 11,134 movements over July 2025 to June 2026.

How often are they cancelled?

0.7% of 11,134 movements at short notice.

How late is late?

23.0–56.4 minutes; delayed denominator 1,970–4,356

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.