UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

Etihad Airways

In the twelve months from July 2025 to June 2026, 33.8% of 2,151 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.

Put the other way round, 66.2% of 2,151 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

33.8% of 2,151 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
33.8% of 2,151 movements3.5% of 2,151 movements26.0–48.4 minutes; delayed denominator 652–1,1350.2% of 2,151 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 2,151 movements passed the three-hour mark.

The ladder shows how many movements crossed each threshold. Cancellations are separate: 3.5% of 2,151 movements.

DelayShare and sampleOne event per movements
More than 15 minutes30.3% of 2,151 movements3.3
More than 30 minutes15.7% of 2,151 movements6.4
More than 60 minutes5.3% of 2,151 movements18.7
More than 120 minutes0.7% of 2,151 movements153.6
More than 180 minutes0.2% of 2,151 movements430.2
More than 360 minutes0.0% of 2,151 movements2,151.0
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 2,151 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 early40418.8%15–1 early53624.9%0–15 late48322.5%16–3031514.6%31–6022210.3%61…1201014.7%121…18090.4%181…36040.2%>36010.0%D=2,151
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: Nov 2020, 1.1% of 90 movements. Worst month: May 2026, 72.5% of 182 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: 24.6%; sample: 1792018Feb 2018: 13.7%; sample: 161Mar 2018: 11.8%; sample: 178Apr 2018: 18.6%; sample: 172May 2018: 8.4%; sample: 178Jun 2018: 5.3%; sample: 171Jul 2018: 7.9%; sample: 178Aug 2018: 9.1%; sample: 176Sep 2018: 9.8%; sample: 173Oct 2018: 8.4%; sample: 155Nov 2018: 3.3%; sample: 150Dec 2018: 17.8%; sample: 169Jan 2019: 11.4%; sample: 1672019Feb 2019: 7.1%; sample: 140Mar 2019: 21.9%; sample: 155Apr 2019: 21.8%; sample: 170May 2019: 14.7%; sample: 163Jun 2019: 9.0%; sample: 189Jul 2019: 9.6%; sample: 218Aug 2019: 19.4%; sample: 217Sep 2019: 20.7%; sample: 208Oct 2019: 21.5%; sample: 186Nov 2019: 11.7%; sample: 180Dec 2019: 8.6%; sample: 186Jan 2020: 21.4%; sample: 1872020Feb 2020: 22.3%; sample: 175Mar 2020: 11.7%; sample: 154Apr 2020: suppressed: fewer than twenty movements×May 2020: suppressed: fewer than twenty movements×Jun 2020: 14.8%; sample: 27Jul 2020: 2.6%; sample: 39Aug 2020: 1.3%; sample: 77Sep 2020: 2.9%; sample: 103Oct 2020: 3.2%; sample: 93Nov 2020: 1.1%; sample: 90Dec 2020: 17.9%; sample: 112Jan 2021: 6.8%; sample: 1182021Feb 2021: suppressed: fewer than twenty movements×Mar 2021: suppressed: fewer than twenty movements×Apr 2021: suppressed: fewer than twenty movements×May 2021: suppressed: fewer than twenty movements×Jun 2021: 1.7%; sample: 59Jul 2021: 7.7%; sample: 65Aug 2021: 23.1%; sample: 108Sep 2021: 18.3%; sample: 120Oct 2021: 39.5%; sample: 124Nov 2021: 20.0%; sample: 120Dec 2021: 44.4%; sample: 124Jan 2022: 35.3%; sample: 1192022Feb 2022: 29.7%; sample: 101Mar 2022: 21.1%; sample: 128Apr 2022: 19.2%; sample: 120May 2022: 12.2%; sample: 156Jun 2022: 18.7%; sample: 150Jul 2022: 19.6%; sample: 184Aug 2022: 8.6%; sample: 186Sep 2022: 13.8%; sample: 160Oct 2022: 25.8%; sample: 155Nov 2022: 9.3%; sample: 150Dec 2022: 17.4%; sample: 155Jan 2023: 23.1%; sample: 1562023Feb 2023: 19.3%; sample: 140Mar 2023: 12.3%; sample: 155Apr 2023: 8.7%; sample: 150May 2023: 14.6%; sample: 137Jun 2023: 12.6%; sample: 151Jul 2023: 16.1%; sample: 155Aug 2023: 13.5%; sample: 155Sep 2023: 8.7%; sample: 150Oct 2023: 35.5%; sample: 155Nov 2023: 44.7%; sample: 150Dec 2023: 43.3%; sample: 157Jan 2024: 35.5%; sample: 1552024Feb 2024: 46.2%; sample: 145Mar 2024: 20.0%; sample: 155Apr 2024: 48.0%; sample: 150May 2024: 27.7%; sample: 155Jun 2024: 22.4%; sample: 152Jul 2024: 18.1%; sample: 155Aug 2024: 24.4%; sample: 156Sep 2024: 22.0%; sample: 150Oct 2024: 69.0%; sample: 155Nov 2024: 11.3%; sample: 150Dec 2024: 17.9%; sample: 162Jan 2025: 19.5%; sample: 1692025Feb 2025: 14.5%; sample: 152Mar 2025: 8.8%; sample: 170Apr 2025: 12.3%; sample: 163May 2025: 17.3%; sample: 168Jun 2025: 28.0%; sample: 164Jul 2025: 7.3%; sample: 177Aug 2025: 10.8%; sample: 186Sep 2025: 23.5%; sample: 179Oct 2025: 26.9%; sample: 186Nov 2025: 11.4%; sample: 185Dec 2025: 25.3%; sample: 190Jan 2026: 40.5%; sample: 1902026Feb 2026: 22.5%; sample: 178Mar 2026: 70.1%; sample: 137Apr 2026: 55.5%; sample: 173May 2026: 72.5%; sample: 182Jun 2026: 49.5%; sample: 188Pandemic regime Jun 2020Summer 2022 breakdown Jul 2022NATS system failure Aug 2023Heathrow fire closure Mar 2025100%0%
Every monthly observation
MonthDisruption on arrivals
Jan 201824.6% of 179 movements
Feb 201813.7% of 161 movements
Mar 201811.8% of 178 movements
Apr 201818.6% of 172 movements
May 20188.4% of 178 movements
Jun 20185.3% of 171 movements
Jul 20187.9% of 178 movements
Aug 20189.1% of 176 movements
Sep 20189.8% of 173 movements
Oct 20188.4% of 155 movements
Nov 20183.3% of 150 movements
Dec 201817.8% of 169 movements
Jan 201911.4% of 167 movements
Feb 20197.1% of 140 movements
Mar 201921.9% of 155 movements
Apr 201921.8% of 170 movements
May 201914.7% of 163 movements
Jun 20199.0% of 189 movements
Jul 20199.6% of 218 movements
Aug 201919.4% of 217 movements
Sep 201920.7% of 208 movements
Oct 201921.5% of 186 movements
Nov 201911.7% of 180 movements
Dec 20198.6% of 186 movements
Jan 202021.4% of 187 movements
Feb 202022.3% of 175 movements
Mar 202011.7% of 154 movements
Apr 2020suppressed: fewer than twenty movements
May 2020suppressed: fewer than twenty movements
Jun 202014.8% of 27 movements — small sample, not ranked
Jul 20202.6% of 39 movements — small sample, not ranked
Aug 20201.3% of 77 movements
Sep 20202.9% of 103 movements
Oct 20203.2% of 93 movements
Nov 20201.1% of 90 movements
Dec 202017.9% of 112 movements
Jan 20216.8% of 118 movements
Feb 2021suppressed: fewer than twenty movements
Mar 2021suppressed: fewer than twenty movements
Apr 2021suppressed: fewer than twenty movements
May 2021suppressed: fewer than twenty movements
Jun 20211.7% of 59 movements
Jul 20217.7% of 65 movements
Aug 202123.1% of 108 movements
Sep 202118.3% of 120 movements
Oct 202139.5% of 124 movements
Nov 202120.0% of 120 movements
Dec 202144.4% of 124 movements
Jan 202235.3% of 119 movements
Feb 202229.7% of 101 movements
Mar 202221.1% of 128 movements
Apr 202219.2% of 120 movements
May 202212.2% of 156 movements
Jun 202218.7% of 150 movements
Jul 202219.6% of 184 movements
Aug 20228.6% of 186 movements
Sep 202213.8% of 160 movements
Oct 202225.8% of 155 movements
Nov 20229.3% of 150 movements
Dec 202217.4% of 155 movements
Jan 202323.1% of 156 movements
Feb 202319.3% of 140 movements
Mar 202312.3% of 155 movements
Apr 20238.7% of 150 movements
May 202314.6% of 137 movements
Jun 202312.6% of 151 movements
Jul 202316.1% of 155 movements
Aug 202313.5% of 155 movements
Sep 20238.7% of 150 movements
Oct 202335.5% of 155 movements
Nov 202344.7% of 150 movements
Dec 202343.3% of 157 movements
Jan 202435.5% of 155 movements
Feb 202446.2% of 145 movements
Mar 202420.0% of 155 movements
Apr 202448.0% of 150 movements
May 202427.7% of 155 movements
Jun 202422.4% of 152 movements
Jul 202418.1% of 155 movements
Aug 202424.4% of 156 movements
Sep 202422.0% of 150 movements
Oct 202469.0% of 155 movements
Nov 202411.3% of 150 movements
Dec 202417.9% of 162 movements
Jan 202519.5% of 169 movements
Feb 202514.5% of 152 movements
Mar 20258.8% of 170 movements
Apr 202512.3% of 163 movements
May 202517.3% of 168 movements
Jun 202528.0% of 164 movements
Jul 20257.3% of 177 movements
Aug 202510.8% of 186 movements
Sep 202523.5% of 179 movements
Oct 202526.9% of 186 movements
Nov 202511.4% of 185 movements
Dec 202525.3% of 190 movements
Jan 202640.5% of 190 movements
Feb 202622.5% of 178 movements
Mar 202670.1% of 137 movements
Apr 202655.5% of 173 movements
May 202672.5% of 182 movements
Jun 202649.5% of 188 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 2020Arrivals14.8% of 27 movements — small sample, not rankedno complete baselinenot enough data: needs a complete baseline and a publishable event month
Pandemic regime · Jun 2020Departures22.2% of 27 movements — small sample, not rankedno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Arrivals19.6% of 184 movements24.1% across 1,435 flightsreturned the next month
Summer 2022 breakdown · Jul 2022Departures66.8% of 184 movements47.7% across 1,511 flightsreturned the next month
NATS system failure · Aug 2023Arrivals13.5% of 155 movements15.1% across 1,850 flightsreturned the next month
NATS system failure · Aug 2023Departures31.6% of 155 movements27.5% across 1,849 flightsreturned after 5 months
Heathrow fire closure · Mar 2025Arrivals8.8% of 170 movements26.2% across 1,861 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures13.5% of 171 movements31.2% across 1,860 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: Oct, 26.3% across 6 months. Lowest median: Nov, 11.3% across 6 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 nJanFebMarAprMayJunJulAugSepOctNovDec201911.4% of 167 movements7.1% of 140 movements21.9% of 155 movements21.8% of 170 movements14.7% of 163 movements9.0% of 189 movements9.6% of 218 movements19.4% of 217 movements20.7% of 208 movements21.5% of 186 movements11.7% of 180 movements8.6% of 186 movements202021.4% of 187 movements22.3% of 175 movements11.7% of 154 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements14.8% of 27 movements †2.6% of 39 movements †1.3% of 77 movements2.9% of 103 movements3.2% of 93 movements1.1% of 90 movements17.9% of 112 movements20216.8% of 118 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements1.7% of 59 movements7.7% of 65 movements23.1% of 108 movements18.3% of 120 movements39.5% of 124 movements20.0% of 120 movements44.4% of 124 movements202235.3% of 119 movements29.7% of 101 movements21.1% of 128 movements19.2% of 120 movements12.2% of 156 movements18.7% of 150 movements19.6% of 184 movements8.6% of 186 movements13.8% of 160 movements25.8% of 155 movements9.3% of 150 movements17.4% of 155 movements202323.1% of 156 movements19.3% of 140 movements12.3% of 155 movements8.7% of 150 movements14.6% of 137 movements12.6% of 151 movements16.1% of 155 movements13.5% of 155 movements8.7% of 150 movements35.5% of 155 movements44.7% of 150 movements43.3% of 157 movements202435.5% of 155 movements46.2% of 145 movements20.0% of 155 movements48.0% of 150 movements27.7% of 155 movements22.4% of 152 movements18.1% of 155 movements24.4% of 156 movements22.0% of 150 movements69.0% of 155 movements11.3% of 150 movements17.9% of 162 movements202519.5% of 169 movements14.5% of 152 movements8.8% of 170 movements12.3% of 163 movements17.3% of 168 movements28.0% of 164 movements7.3% of 177 movements10.8% of 186 movements23.5% of 179 movements26.9% of 186 movements11.4% of 185 movements25.3% of 190 movements202640.5% of 190 movements22.5% of 178 movements70.1% of 137 movements55.5% of 173 movements72.5% of 182 movements49.5% of 188 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan24.6%11.4–40.5%7 months, 1,135 flights
Feb19.3%7.1–46.2%7 months, 1,017 flights
Mar20.0%8.8–70.1%7 months, 1,078 flights
Apr19.2%8.7–55.5%7 months, 1,098 flights
May14.7%8.4–72.5%7 months, 1,139 flights
Jun18.7%5.3–49.5%7 months, 1,165 flights
Jul12.9%7.3–19.6%6 months, 1,067 flights
Aug12.2%8.6–24.4%6 months, 1,076 flights
Sep17.2%8.7–23.5%6 months, 1,020 flights
Oct26.3%8.4–69.0%6 months, 992 flights
Nov11.3%3.3–44.7%6 months, 965 flights
Dec17.8%8.6–43.3%6 months, 1,019 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 ↔ ABU-DHABI-INTERNATIONAL, 31.1% of 1,398 movements. Highest disruption: MAN ↔ ABU-DHABI-INTERNATIONAL, 38.9% of 753 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 ↔ Abu-Dhabi-International31.1% of 1,398 flightsMan ↔ Abu-Dhabi-International38.9% of 753 flights
All route comparisons and sample flags
RouteDisruptionCancellationsSample flag
Heathrow ↔ Abu Dhabi International31.1% of 1,398 movements2.0% of 1,398 movementsdescriptive comparison
Manchester ↔ Abu Dhabi International38.9% of 753 movements6.4% of 753 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.

Which UK airports appear in this record?

2 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
Heathrow31.1% of 1,398 movementsdescriptive comparison
Manchester38.9% of 753 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

33.8% of 2,151 movements arrivals were disrupted, against 28.8% of 2,153 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 2,151 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

Etihad Airways appears from Jan 2018 to Jun 2026 with 14,695 arrivals.

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

Archive route pairs: 20.

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?

33.8% of 2,151 movements over July 2025 to June 2026.

How often are they cancelled?

3.5% of 2,151 movements at short notice.

How late is late?

26.0–48.4 minutes; delayed denominator 652–1,135

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.