UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

Hungary

In the twelve months from July 2025 to June 2026, 22.6% of 6,884 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.

Put the other way round, 77.4% of 6,884 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

22.6% of 6,884 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
22.6% of 6,884 movements0.3% of 6,884 movements28.2–59.7 minutes; delayed denominator 1,534–3,0090.3% of 6,884 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?

0.3% of 6,884 movements passed the three-hour mark.

The ladder shows how many movements crossed each threshold. Cancellations are separate: 0.3% of 6,884 movements.

DelayShare and sampleOne event per movements
More than 15 minutes22.3% of 6,884 movements4.5
More than 30 minutes13.3% of 6,884 movements7.5
More than 60 minutes6.0% of 6,884 movements16.7
More than 120 minutes1.4% of 6,884 movements70.2
More than 180 minutes0.3% of 6,884 movements286.8
More than 360 minutes0.0% of 6,884 movements2,294.7
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?

1.4% of 6,884 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 early1,33419.4%15–1 early2,52036.6%0–15 late1,47521.4%16–306219.0%31–605007.3%61…1203154.6%121…180741.1%181…360210.3%>36030.0%D=6,886
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, 4.4% of 113 movements. Worst month: Jul 2022, 62.9% of 498 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: 32.7%; sample: 5022018Feb 2018: 23.4%; sample: 465Mar 2018: 27.7%; sample: 564Apr 2018: 31.9%; sample: 592May 2018: 34.4%; sample: 610Jun 2018: 45.9%; sample: 590Jul 2018: 41.9%; sample: 608Aug 2018: 42.0%; sample: 605Sep 2018: 36.9%; sample: 580Oct 2018: 29.5%; sample: 596Nov 2018: 14.4%; sample: 542Dec 2018: 38.6%; sample: 583Jan 2019: 26.0%; sample: 5462019Feb 2019: 19.2%; sample: 527Mar 2019: 26.6%; sample: 624Apr 2019: 17.7%; sample: 694May 2019: 30.1%; sample: 670Jun 2019: 44.1%; sample: 641Jul 2019: 40.2%; sample: 674Aug 2019: 41.3%; sample: 683Sep 2019: 36.9%; sample: 636Oct 2019: 30.1%; sample: 655Nov 2019: 15.2%; sample: 594Dec 2019: 28.2%; sample: 655Jan 2020: 24.4%; sample: 6712020Feb 2020: 39.2%; sample: 641Mar 2020: 17.0%; sample: 519Apr 2020: 10.7%; sample: 75May 2020: 15.1%; sample: 73Jun 2020: 10.5%; sample: 124Jul 2020: 5.0%; sample: 240Aug 2020: 7.3%; sample: 316Sep 2020: 4.5%; sample: 176Oct 2020: 6.7%; sample: 135Nov 2020: 12.7%; sample: 63Dec 2020: 36.8%; sample: 106Jan 2021: 23.0%; sample: 612021Feb 2021: 44.1%; sample: 34Mar 2021: 20.0%; sample: 35Apr 2021: 18.4%; sample: 38May 2021: 2.4%; sample: 41Jun 2021: 4.4%; sample: 113Jul 2021: 10.6%; sample: 151Aug 2021: 15.7%; sample: 280Sep 2021: 12.2%; sample: 287Oct 2021: 13.8%; sample: 311Nov 2021: 9.0%; sample: 322Dec 2021: 26.6%; sample: 391Jan 2022: 16.1%; sample: 2482022Feb 2022: 26.7%; sample: 311Mar 2022: 13.4%; sample: 433Apr 2022: 31.8%; sample: 572May 2022: 41.1%; sample: 569Jun 2022: 62.5%; sample: 530Jul 2022: 62.9%; sample: 498Aug 2022: 42.3%; sample: 492Sep 2022: 47.7%; sample: 505Oct 2022: 46.5%; sample: 535Nov 2022: 22.1%; sample: 458Dec 2022: 45.3%; sample: 505Jan 2023: 28.6%; sample: 4412023Feb 2023: 21.9%; sample: 420Mar 2023: 23.5%; sample: 493Apr 2023: 19.9%; sample: 538May 2023: 23.4%; sample: 547Jun 2023: 39.2%; sample: 523Jul 2023: 45.9%; sample: 534Aug 2023: 37.7%; sample: 525Sep 2023: 29.4%; sample: 521Oct 2023: 34.2%; sample: 555Nov 2023: 24.0%; sample: 487Dec 2023: 46.1%; sample: 544Jan 2024: 33.0%; sample: 5062024Feb 2024: 22.6%; sample: 465Mar 2024: 15.2%; sample: 528Apr 2024: 19.4%; sample: 576May 2024: 26.4%; sample: 592Jun 2024: 41.6%; sample: 563Jul 2024: 56.1%; sample: 567Aug 2024: 44.6%; sample: 560Sep 2024: 44.1%; sample: 567Oct 2024: 26.3%; sample: 582Nov 2024: 22.4%; sample: 526Dec 2024: 28.4%; sample: 616Jan 2025: 27.5%; sample: 5312025Feb 2025: 9.9%; sample: 523Mar 2025: 10.5%; sample: 591Apr 2025: 16.3%; sample: 612May 2025: 18.3%; sample: 628Jun 2025: 24.4%; sample: 591Jul 2025: 31.2%; sample: 605Aug 2025: 29.3%; sample: 617Sep 2025: 34.8%; sample: 597Oct 2025: 26.8%; sample: 634Nov 2025: 16.9%; sample: 557Dec 2025: 18.4%; sample: 620Jan 2026: 32.1%; sample: 4742026Feb 2026: 16.0%; sample: 501Mar 2026: 8.1%; sample: 577Apr 2026: 11.8%; sample: 567May 2026: 19.6%; sample: 598Jun 2026: 25.3%; sample: 537Pandemic regime Jun 2020Summer 2022 breakdown Jul 2022NATS system failure Aug 2023Heathrow fire closure Mar 2025100%0%
Every monthly observation
MonthDisruption on arrivals
Jan 201832.7% of 502 movements
Feb 201823.4% of 465 movements
Mar 201827.7% of 564 movements
Apr 201831.9% of 592 movements
May 201834.4% of 610 movements
Jun 201845.9% of 590 movements
Jul 201841.9% of 608 movements
Aug 201842.0% of 605 movements
Sep 201836.9% of 580 movements
Oct 201829.5% of 596 movements
Nov 201814.4% of 542 movements
Dec 201838.6% of 583 movements
Jan 201926.0% of 546 movements
Feb 201919.2% of 527 movements
Mar 201926.6% of 624 movements
Apr 201917.7% of 694 movements
May 201930.1% of 670 movements
Jun 201944.1% of 641 movements
Jul 201940.2% of 674 movements
Aug 201941.3% of 683 movements
Sep 201936.9% of 636 movements
Oct 201930.1% of 655 movements
Nov 201915.2% of 594 movements
Dec 201928.2% of 655 movements
Jan 202024.4% of 671 movements
Feb 202039.2% of 641 movements
Mar 202017.0% of 519 movements
Apr 202010.7% of 75 movements
May 202015.1% of 73 movements
Jun 202010.5% of 124 movements
Jul 20205.0% of 240 movements
Aug 20207.3% of 316 movements
Sep 20204.5% of 176 movements
Oct 20206.7% of 135 movements
Nov 202012.7% of 63 movements
Dec 202036.8% of 106 movements
Jan 202123.0% of 61 movements
Feb 202144.1% of 34 movements — small sample, not ranked
Mar 202120.0% of 35 movements — small sample, not ranked
Apr 202118.4% of 38 movements — small sample, not ranked
May 20212.4% of 41 movements — small sample, not ranked
Jun 20214.4% of 113 movements
Jul 202110.6% of 151 movements
Aug 202115.7% of 280 movements
Sep 202112.2% of 287 movements
Oct 202113.8% of 311 movements
Nov 20219.0% of 322 movements
Dec 202126.6% of 391 movements
Jan 202216.1% of 248 movements
Feb 202226.7% of 311 movements
Mar 202213.4% of 433 movements
Apr 202231.8% of 572 movements
May 202241.1% of 569 movements
Jun 202262.5% of 530 movements
Jul 202262.9% of 498 movements
Aug 202242.3% of 492 movements
Sep 202247.7% of 505 movements
Oct 202246.5% of 535 movements
Nov 202222.1% of 458 movements
Dec 202245.3% of 505 movements
Jan 202328.6% of 441 movements
Feb 202321.9% of 420 movements
Mar 202323.5% of 493 movements
Apr 202319.9% of 538 movements
May 202323.4% of 547 movements
Jun 202339.2% of 523 movements
Jul 202345.9% of 534 movements
Aug 202337.7% of 525 movements
Sep 202329.4% of 521 movements
Oct 202334.2% of 555 movements
Nov 202324.0% of 487 movements
Dec 202346.1% of 544 movements
Jan 202433.0% of 506 movements
Feb 202422.6% of 465 movements
Mar 202415.2% of 528 movements
Apr 202419.4% of 576 movements
May 202426.4% of 592 movements
Jun 202441.6% of 563 movements
Jul 202456.1% of 567 movements
Aug 202444.6% of 560 movements
Sep 202444.1% of 567 movements
Oct 202426.3% of 582 movements
Nov 202422.4% of 526 movements
Dec 202428.4% of 616 movements
Jan 202527.5% of 531 movements
Feb 20259.9% of 523 movements
Mar 202510.5% of 591 movements
Apr 202516.3% of 612 movements
May 202518.3% of 628 movements
Jun 202524.4% of 591 movements
Jul 202531.2% of 605 movements
Aug 202529.3% of 617 movements
Sep 202534.8% of 597 movements
Oct 202526.8% of 634 movements
Nov 202516.9% of 557 movements
Dec 202518.4% of 620 movements
Jan 202632.1% of 474 movements
Feb 202616.0% of 501 movements
Mar 20268.1% of 577 movements
Apr 202611.8% of 567 movements
May 202619.6% of 598 movements
Jun 202625.3% of 537 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 2020Arrivals10.5% of 124 movements28.5% across 6,517 flightsreturned the next month
Pandemic regime · Jun 2020Departures13.1% of 122 movements30.1% across 6,520 flightsreturned the next month
Summer 2022 breakdown · Jul 2022Arrivals62.9% of 498 movements23.3% across 4,405 flightsreturned after 4 months
Summer 2022 breakdown · Jul 2022Departures78.1% of 498 movements31.7% across 4,397 flightsreturned after 4 months
NATS system failure · Aug 2023Arrivals37.7% of 525 movements33.9% across 5,991 flightsreturned the next month
NATS system failure · Aug 2023Departures49.2% of 526 movements45.4% across 5,973 flightsreturned the next month
Heathrow fire closure · Mar 2025Arrivals10.5% of 591 movements30.2% across 6,731 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures15.9% of 591 movements36.9% across 6,716 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, 43.9% across 6 months. Lowest median: Mar, 15.2% 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 nJanFebMarAprMayJunJulAugSepOctNovDec201926.0% of 546 movements19.2% of 527 movements26.6% of 624 movements17.7% of 694 movements30.1% of 670 movements44.1% of 641 movements40.2% of 674 movements41.3% of 683 movements36.9% of 636 movements30.1% of 655 movements15.2% of 594 movements28.2% of 655 movements202024.4% of 671 movements39.2% of 641 movements17.0% of 519 movements10.7% of 75 movements15.1% of 73 movements10.5% of 124 movements5.0% of 240 movements7.3% of 316 movements4.5% of 176 movements6.7% of 135 movements12.7% of 63 movements36.8% of 106 movements202123.0% of 61 movements44.1% of 34 movements †20.0% of 35 movements †18.4% of 38 movements †2.4% of 41 movements †4.4% of 113 movements10.6% of 151 movements15.7% of 280 movements12.2% of 287 movements13.8% of 311 movements9.0% of 322 movements26.6% of 391 movements202216.1% of 248 movements26.7% of 311 movements13.4% of 433 movements31.8% of 572 movements41.1% of 569 movements62.5% of 530 movements62.9% of 498 movements42.3% of 492 movements47.7% of 505 movements46.5% of 535 movements22.1% of 458 movements45.3% of 505 movements202328.6% of 441 movements21.9% of 420 movements23.5% of 493 movements19.9% of 538 movements23.4% of 547 movements39.2% of 523 movements45.9% of 534 movements37.7% of 525 movements29.4% of 521 movements34.2% of 555 movements24.0% of 487 movements46.1% of 544 movements202433.0% of 506 movements22.6% of 465 movements15.2% of 528 movements19.4% of 576 movements26.4% of 592 movements41.6% of 563 movements56.1% of 567 movements44.6% of 560 movements44.1% of 567 movements26.3% of 582 movements22.4% of 526 movements28.4% of 616 movements202527.5% of 531 movements9.9% of 523 movements10.5% of 591 movements16.3% of 612 movements18.3% of 628 movements24.4% of 591 movements31.2% of 605 movements29.3% of 617 movements34.8% of 597 movements26.8% of 634 movements16.9% of 557 movements18.4% of 620 movements202632.1% of 474 movements16.0% of 501 movements8.1% of 577 movements11.8% of 567 movements19.6% of 598 movements25.3% of 537 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan28.6%16.1–33.0%7 months, 3,248 flights
Feb21.9%9.9–26.7%7 months, 3,212 flights
Mar15.2%8.1–27.7%7 months, 3,810 flights
Apr19.4%11.8–31.9%7 months, 4,151 flights
May26.4%18.3–41.1%7 months, 4,214 flights
Jun41.6%24.4–62.5%7 months, 3,975 flights
Jul43.9%31.2–62.9%6 months, 3,486 flights
Aug41.6%29.3–44.6%6 months, 3,482 flights
Sep36.9%29.4–47.7%6 months, 3,406 flights
Oct29.8%26.3–46.5%6 months, 3,557 flights
Nov19.5%14.4–24.0%6 months, 3,164 flights
Dec33.5%18.4–46.1%6 months, 3,523 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: EMA ↔ BUDAPEST, 10.8% of 111 movements. Highest disruption: BFS ↔ BUDAPEST, 38.9% of 95 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 optionEma ↔ Budapest10.8% of 111 flightsLpl ↔ Budapest10.9% of 138 flightsNcl ↔ Budapest12.4% of 129 flightsBrs ↔ Budapest30.0% of 293 flightsMan ↔ Budapest30.1% of 652 flightsBfs ↔ Budapest38.9% of 95 flights
All route comparisons and sample flags
RouteDisruptionCancellationsSample flag
EMA ↔ BUDAPEST10.8% of 111 movementsno events in 111 movementsdescriptive comparison
LPL ↔ BUDAPEST10.9% of 138 movementsno events in 138 movementsdescriptive comparison
NCL ↔ BUDAPEST12.4% of 129 movementsno events in 129 movementsdescriptive comparison
Luton ↔ Budapest19.8% of 1,062 movements0.1% of 1,062 movementsdescriptive comparison
Heathrow ↔ Budapest20.2% of 1,310 movements0.9% of 1,310 movementsdescriptive comparison
Stansted ↔ Budapest20.5% of 1,349 movements0.2% of 1,349 movementsdescriptive comparison
EDI ↔ BUDAPEST21.9% of 379 movements0.5% of 379 movementsdescriptive comparison
LBA ↔ BUDAPEST22.1% of 68 movementsno events in 68 movementsdescriptive comparison
LTN ↔ DEBRECEN22.1% of 163 movements0.6% of 163 movementsdescriptive comparison
BHX ↔ BUDAPEST23.1% of 351 movementsno events in 351 movementsdescriptive comparison
Gatwick ↔ Budapest28.1% of 730 movements0.1% of 730 movementsdescriptive comparison
BRS ↔ BUDAPEST30.0% of 293 movementsno events in 293 movementsdescriptive comparison
Manchester ↔ Budapest30.1% of 652 movements0.2% of 652 movementsdescriptive comparison
BFS ↔ BUDAPEST38.9% of 95 movementsno events in 95 movementsdescriptive comparison
GLA ↔ BUDAPEST32.7% of 49 movements — small sample, not rankedno events in 49 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?

14 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
Belfast International38.9% of 95 movementsdescriptive comparison
Birmingham23.1% of 351 movementsdescriptive comparison
Bristol30.0% of 293 movementsdescriptive comparison
Edinburgh21.9% of 379 movementsdescriptive comparison
East Midlands International10.8% of 111 movementsdescriptive comparison
Glasgow32.7% of 49 movements — small sample, not rankedsmall sample; not ranked
Leeds Bradford22.1% of 68 movementsdescriptive comparison
Gatwick28.1% of 730 movementsdescriptive comparison
Heathrow20.2% of 1,310 movementsdescriptive comparison
Liverpool (John Lennon)10.9% of 138 movementsdescriptive comparison
Luton20.1% of 1,225 movementsdescriptive comparison
Manchester30.1% of 652 movementsdescriptive comparison
Newcastle12.4% of 129 movementsdescriptive comparison
Stansted20.5% of 1,349 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

22.6% of 6,884 movements arrivals were disrupted, against 27.3% of 6,860 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

0.3% of 6,884 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

Hungary appears from Jan 2018 to Jun 2026 with 48,431 arrivals.

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

Archive route pairs: 29.

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?

22.6% of 6,884 movements over July 2025 to June 2026.

How often are they cancelled?

0.3% of 6,884 movements at short notice.

How late is late?

28.2–59.7 minutes; delayed denominator 1,534–3,009

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.