UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

Sunexpress

In the twelve months from July 2025 to June 2026, 24.2% of 4,686 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.

Put the other way round, 75.8% of 4,686 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

24.2% of 4,686 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
24.2% of 4,686 movements0.7% of 4,686 movements20.6–50.0 minutes; delayed denominator 1,101–2,4460.3% of 4,686 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 4,686 movements passed the three-hour mark.

The ladder shows how many movements crossed each threshold. Cancellations are separate: 0.7% of 4,686 movements.

DelayShare and sampleOne event per movements
More than 15 minutes23.5% of 4,686 movements4.3
More than 30 minutes10.0% of 4,686 movements10.0
More than 60 minutes3.0% of 4,686 movements33.0
More than 120 minutes0.7% of 4,686 movements142.0
More than 180 minutes0.3% of 4,686 movements334.7
More than 360 minutes0.1% of 4,686 movements1,562.0
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?

0.7% of 4,686 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 early79817.0%15–1 early1,40930.1%0–15 late1,34528.7%16–3063313.5%31–603267.0%61…1201092.3%121…180190.4%181…360110.2%>36030.1%D=4,686
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: Mar 2025, 3.6% of 140 movements. Worst month: Jul 2024, 62.5% of 571 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: no data×2018Feb 2018: no data×Mar 2018: no data×Apr 2018: no data×May 2018: no data×Jun 2018: suppressed: fewer than twenty movements×Jul 2018: 47.6%; sample: 42Aug 2018: 33.3%; sample: 39Sep 2018: 47.4%; sample: 38Oct 2018: suppressed: fewer than twenty movements×Nov 2018: no data×Dec 2018: no data×Jan 2019: no data×2019Feb 2019: no data×Mar 2019: no data×Apr 2019: no data×May 2019: suppressed: fewer than twenty movements×Jun 2019: 35.7%; sample: 28Jul 2019: 50.0%; sample: 36Aug 2019: 38.2%; sample: 34Sep 2019: 40.0%; sample: 35Oct 2019: 30.0%; sample: 20Nov 2019: suppressed: fewer than twenty movements×Dec 2019: no data×Jan 2020: no data×2020Feb 2020: no data×Mar 2020: no data×Apr 2020: no data×May 2020: suppressed: fewer than twenty movements×Jun 2020: suppressed: fewer than twenty movements×Jul 2020: 8.3%; sample: 24Aug 2020: 15.4%; sample: 26Sep 2020: 12.0%; sample: 25Oct 2020: suppressed: fewer than twenty movements×Nov 2020: suppressed: fewer than twenty movements×Dec 2020: suppressed: fewer than twenty movements×Jan 2021: suppressed: fewer than twenty movements×2021Feb 2021: no data×Mar 2021: no data×Apr 2021: no data×May 2021: suppressed: fewer than twenty movements×Jun 2021: suppressed: fewer than twenty movements×Jul 2021: suppressed: fewer than twenty movements×Aug 2021: suppressed: fewer than twenty movements×Sep 2021: suppressed: fewer than twenty movements×Oct 2021: suppressed: fewer than twenty movements×Nov 2021: suppressed: fewer than twenty movements×Dec 2021: suppressed: fewer than twenty movements×Jan 2022: suppressed: fewer than twenty movements×2022Feb 2022: suppressed: fewer than twenty movements×Mar 2022: 9.5%; sample: 21Apr 2022: 15.8%; sample: 95May 2022: 22.2%; sample: 108Jun 2022: 51.6%; sample: 153Jul 2022: 51.6%; sample: 186Aug 2022: 27.4%; sample: 190Sep 2022: 53.9%; sample: 180Oct 2022: 41.5%; sample: 183Nov 2022: 6.7%; sample: 45Dec 2022: 41.7%; sample: 36Jan 2023: 30.0%; sample: 202023Feb 2023: 6.2%; sample: 32Mar 2023: 18.8%; sample: 64Apr 2023: 19.2%; sample: 151May 2023: 17.7%; sample: 186Jun 2023: 35.2%; sample: 264Jul 2023: 61.5%; sample: 314Aug 2023: 36.3%; sample: 331Sep 2023: 30.6%; sample: 314Oct 2023: 39.7%; sample: 315Nov 2023: 30.4%; sample: 92Dec 2023: 22.1%; sample: 68Jan 2024: 23.9%; sample: 462024Feb 2024: 7.2%; sample: 69Mar 2024: 8.2%; sample: 122Apr 2024: 12.7%; sample: 284May 2024: 23.0%; sample: 409Jun 2024: 52.8%; sample: 523Jul 2024: 62.5%; sample: 571Aug 2024: 33.4%; sample: 580Sep 2024: 28.2%; sample: 570Oct 2024: 27.4%; sample: 563Nov 2024: 18.9%; sample: 164Dec 2024: 26.4%; sample: 121Jan 2025: 37.3%; sample: 832025Feb 2025: 11.4%; sample: 88Mar 2025: 3.6%; sample: 140Apr 2025: 9.8%; sample: 398May 2025: 19.5%; sample: 568Jun 2025: 27.4%; sample: 657Jul 2025: 28.1%; sample: 712Aug 2025: 22.5%; sample: 723Sep 2025: 31.3%; sample: 667Oct 2025: 33.9%; sample: 657Nov 2025: 13.8%; sample: 181Dec 2025: 12.4%; sample: 113Jan 2026: 51.6%; sample: 642026Feb 2026: 11.4%; sample: 70Mar 2026: 6.5%; sample: 153Apr 2026: 14.9%; sample: 322May 2026: 13.1%; sample: 527Jun 2026: 26.6%; sample: 497Pandemic regime Jun 2020Summer 2022 breakdown Jul 2022NATS system failure Aug 2023Heathrow fire closure Mar 2025100%0%
Every monthly observation
MonthDisruption on arrivals
Jan 2018no data
Feb 2018no data
Mar 2018no data
Apr 2018no data
May 2018no data
Jun 2018suppressed: fewer than twenty movements
Jul 201847.6% of 42 movements — small sample, not ranked
Aug 201833.3% of 39 movements — small sample, not ranked
Sep 201847.4% of 38 movements — small sample, not ranked
Oct 2018suppressed: fewer than twenty movements
Nov 2018no data
Dec 2018no data
Jan 2019no data
Feb 2019no data
Mar 2019no data
Apr 2019no data
May 2019suppressed: fewer than twenty movements
Jun 201935.7% of 28 movements — small sample, not ranked
Jul 201950.0% of 36 movements — small sample, not ranked
Aug 201938.2% of 34 movements — small sample, not ranked
Sep 201940.0% of 35 movements — small sample, not ranked
Oct 201930.0% of 20 movements — small sample, not ranked
Nov 2019suppressed: fewer than twenty movements
Dec 2019no data
Jan 2020no data
Feb 2020no data
Mar 2020no data
Apr 2020no data
May 2020suppressed: fewer than twenty movements
Jun 2020suppressed: fewer than twenty movements
Jul 20208.3% of 24 movements — small sample, not ranked
Aug 202015.4% of 26 movements — small sample, not ranked
Sep 202012.0% of 25 movements — small sample, not ranked
Oct 2020suppressed: fewer than twenty movements
Nov 2020suppressed: fewer than twenty movements
Dec 2020suppressed: fewer than twenty movements
Jan 2021suppressed: fewer than twenty movements
Feb 2021no data
Mar 2021no data
Apr 2021no data
May 2021suppressed: fewer than twenty movements
Jun 2021suppressed: fewer than twenty movements
Jul 2021suppressed: fewer than twenty movements
Aug 2021suppressed: fewer than twenty movements
Sep 2021suppressed: fewer than twenty movements
Oct 2021suppressed: fewer than twenty movements
Nov 2021suppressed: fewer than twenty movements
Dec 2021suppressed: fewer than twenty movements
Jan 2022suppressed: fewer than twenty movements
Feb 2022suppressed: fewer than twenty movements
Mar 20229.5% of 21 movements — small sample, not ranked
Apr 202215.8% of 95 movements
May 202222.2% of 108 movements
Jun 202251.6% of 153 movements
Jul 202251.6% of 186 movements
Aug 202227.4% of 190 movements
Sep 202253.9% of 180 movements
Oct 202241.5% of 183 movements
Nov 20226.7% of 45 movements — small sample, not ranked
Dec 202241.7% of 36 movements — small sample, not ranked
Jan 202330.0% of 20 movements — small sample, not ranked
Feb 20236.2% of 32 movements — small sample, not ranked
Mar 202318.8% of 64 movements
Apr 202319.2% of 151 movements
May 202317.7% of 186 movements
Jun 202335.2% of 264 movements
Jul 202361.5% of 314 movements
Aug 202336.3% of 331 movements
Sep 202330.6% of 314 movements
Oct 202339.7% of 315 movements
Nov 202330.4% of 92 movements
Dec 202322.1% of 68 movements
Jan 202423.9% of 46 movements — small sample, not ranked
Feb 20247.2% of 69 movements
Mar 20248.2% of 122 movements
Apr 202412.7% of 284 movements
May 202423.0% of 409 movements
Jun 202452.8% of 523 movements
Jul 202462.5% of 571 movements
Aug 202433.4% of 580 movements
Sep 202428.2% of 570 movements
Oct 202427.4% of 563 movements
Nov 202418.9% of 164 movements
Dec 202426.4% of 121 movements
Jan 202537.3% of 83 movements
Feb 202511.4% of 88 movements
Mar 20253.6% of 140 movements
Apr 20259.8% of 398 movements
May 202519.5% of 568 movements
Jun 202527.4% of 657 movements
Jul 202528.1% of 712 movements
Aug 202522.5% of 723 movements
Sep 202531.3% of 667 movements
Oct 202533.9% of 657 movements
Nov 202513.8% of 181 movements
Dec 202512.4% of 113 movements
Jan 202651.6% of 64 movements
Feb 202611.4% of 70 movements
Mar 20266.5% of 153 movements
Apr 202614.9% of 322 movements
May 202613.1% of 527 movements
Jun 202626.6% of 497 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 2022Arrivals51.6% of 186 movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Departures89.2% of 186 movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
NATS system failure · Aug 2023Arrivals36.3% of 331 movements30.0% across 1,665 flightsreturned after 4 months
NATS system failure · Aug 2023Departures65.4% of 332 movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Heathrow fire closure · Mar 2025Arrivals3.6% of 140 movements28.5% across 4,078 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures22.9% of 140 movements44.9% across 4,070 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, 50.8% across 6 months. Lowest median: Mar, 8.2% across 5 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 nJanFebMarAprMayJunJulAugSepOctNovDec2019no datano datano datano datasuppressed: fewer than twenty movements35.7% of 28 movements †50.0% of 36 movements †38.2% of 34 movements †40.0% of 35 movements †30.0% of 20 movements †suppressed: fewer than twenty movementsno data2020no datano datano datano datasuppressed: fewer than twenty movementssuppressed: fewer than twenty movements8.3% of 24 movements †15.4% of 26 movements †12.0% of 25 movements †suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements2021suppressed: fewer than twenty movementsno datano datano datasuppressed: 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 movements2022suppressed: fewer than twenty movementssuppressed: fewer than twenty movements9.5% of 21 movements †15.8% of 95 movements22.2% of 108 movements51.6% of 153 movements51.6% of 186 movements27.4% of 190 movements53.9% of 180 movements41.5% of 183 movements6.7% of 45 movements †41.7% of 36 movements †202330.0% of 20 movements †6.2% of 32 movements †18.8% of 64 movements19.2% of 151 movements17.7% of 186 movements35.2% of 264 movements61.5% of 314 movements36.3% of 331 movements30.6% of 314 movements39.7% of 315 movements30.4% of 92 movements22.1% of 68 movements202423.9% of 46 movements †7.2% of 69 movements8.2% of 122 movements12.7% of 284 movements23.0% of 409 movements52.8% of 523 movements62.5% of 571 movements33.4% of 580 movements28.2% of 570 movements27.4% of 563 movements18.9% of 164 movements26.4% of 121 movements202537.3% of 83 movements11.4% of 88 movements3.6% of 140 movements9.8% of 398 movements19.5% of 568 movements27.4% of 657 movements28.1% of 712 movements22.5% of 723 movements31.3% of 667 movements33.9% of 657 movements13.8% of 181 movements12.4% of 113 movements202651.6% of 64 movements11.4% of 70 movements6.5% of 153 movements14.9% of 322 movements13.1% of 527 movements26.6% of 497 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan33.7%23.9–51.6%4 months, 213 flights
Feb9.3%6.2–11.4%4 months, 259 flights
Mar8.2%3.6–18.8%5 months, 500 flights
Apr14.9%9.8–19.2%5 months, 1,250 flights
May19.5%13.1–23.0%5 months, 1,798 flights
Jun35.5%26.6–52.8%6 months, 2,122 flights
Jul50.8%28.1–62.5%6 months, 1,861 flights
Aug33.4%22.5–38.2%6 months, 1,897 flights
Sep35.7%28.2–53.9%6 months, 1,804 flights
Oct33.9%27.4–41.5%5 months, 1,738 flights
Nov16.4%6.7–30.4%4 months, 482 flights
Dec24.3%12.4–41.7%4 months, 338 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: NCL ↔ DALAMAN, 1.9% of 53 movements. Highest disruption: STN ↔ GAZIANTEP, 50.5% of 91 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 optionNcl ↔ Dalaman1.9% of 53 flightsBhx ↔ Izmir-Adnan-Menderes5.6% of 54 flightsBhx ↔ Dalaman6.6% of 257 flightsLgw ↔ Antalya34.1% of 504 flightsStn ↔ Antalya48.7% of 376 flightsStn ↔ Gaziantep50.5% of 91 flights
All route comparisons and sample flags
RouteDisruptionCancellationsSample flag
NCL ↔ DALAMAN1.9% of 53 movementsno events in 53 movementsdescriptive comparison
BHX ↔ IZMIR-ADNAN-MENDERES5.6% of 54 movementsno events in 54 movementsdescriptive comparison
Birmingham ↔ Dalaman6.6% of 257 movementsno events in 257 movementsdescriptive comparison
LBA ↔ ANTALYA10.5% of 114 movementsno events in 114 movementsdescriptive comparison
EDI ↔ ANTALYA11.6% of 233 movementsno events in 233 movementsdescriptive comparison
Stansted ↔ Izmir (Adnan Menderes)12.4% of 267 movementsno events in 267 movementsdescriptive comparison
Stansted ↔ Dalaman14.5% of 69 movements1.4% of 69 movementsdescriptive comparison
Manchester ↔ Dalaman16.5% of 387 movementsno events in 387 movementsdescriptive comparison
MAN ↔ IZMIR-ADNAN-MENDERES17.0% of 100 movementsno events in 100 movementsdescriptive comparison
Newcastle ↔ Antalya17.9% of 162 movementsno events in 162 movementsdescriptive comparison
LGW ↔ IZMIR-ADNAN-MENDERES18.8% of 85 movementsno events in 85 movementsdescriptive comparison
EDI ↔ DALAMAN22.1% of 104 movementsno events in 104 movementsdescriptive comparison
Luton ↔ Antalya24.3% of 177 movementsno events in 177 movementsdescriptive comparison
Manchester ↔ Antalya25.1% of 676 movements2.8% of 676 movementsdescriptive comparison
Birmingham ↔ Antalya25.5% of 377 movements0.5% of 377 movementsdescriptive comparison
GLA ↔ ANTALYA25.6% of 82 movementsno events in 82 movementsdescriptive comparison
Gatwick ↔ Dalaman28.5% of 207 movementsno events in 207 movementsdescriptive comparison
LPL ↔ ANTALYA30.2% of 53 movementsno events in 53 movementsdescriptive comparison
Bristol ↔ Antalya30.3% of 132 movementsno events in 132 movementsdescriptive comparison
Gatwick ↔ Antalya34.1% of 504 movements0.4% of 504 movementsdescriptive comparison
Stansted ↔ Antalya48.7% of 376 movements0.3% of 376 movementsdescriptive comparison
STN ↔ GAZIANTEP50.5% of 91 movements1.1% of 91 movementsdescriptive comparison
EDI ↔ IZMIR-ADNAN-MENDERES17.9% of 28 movements — small sample, not rankedno events in 28 movements — small sample, not rankedsmall sample; not ranked
GLA ↔ DALAMAN14.7% of 34 movements — small sample, not rankedno events in 34 movements — small sample, not rankedsmall sample; not ranked
STN ↔ CUKUROVA27.3% of 22 movements — small sample, not rankedno events in 22 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?

11 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
Birmingham17.1% of 690 movementsdescriptive comparison
Bristol30.8% of 133 movementsdescriptive comparison
Edinburgh15.1% of 365 movementsdescriptive comparison
Glasgow23.1% of 117 movementsdescriptive comparison
Leeds Bradford10.5% of 114 movementsdescriptive comparison
Gatwick31.1% of 797 movementsdescriptive comparison
Liverpool (John Lennon)30.2% of 53 movementsdescriptive comparison
Luton24.3% of 177 movementsdescriptive comparison
Manchester21.9% of 1,180 movementsdescriptive comparison
Newcastle14.0% of 215 movementsdescriptive comparison
Stansted33.8% of 840 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

24.2% of 4,686 movements arrivals were disrupted, against 39.7% of 4,684 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 4,686 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

Sunexpress appears from Jun 2018 to Jun 2026 with 14,434 arrivals.

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

Archive route pairs: 54.

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?

24.2% of 4,686 movements over July 2025 to June 2026.

How often are they cancelled?

0.7% of 4,686 movements at short notice.

How late is late?

20.6–50.0 minutes; delayed denominator 1,101–2,446

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.