How often are these flights late or cancelled?
India
In the twelve months from July 2025 to June 2026, 34.5% of 8,603 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 65.5% of 8,603 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
34.5% of 8,603 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.
| Disruption | Short-notice cancellations | Delay among delayed movements | Over three hours |
|---|---|---|---|
| 34.5% of 8,603 movements | 1.4% of 8,603 movements | 41.9–67.1 minutes; delayed denominator 2,848–4,364 | 1.6% of 8,603 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?
1.6% of 8,603 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 1.4% of 8,603 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 33.1% of 8,603 movements | 3.0 |
| More than 30 minutes | 21.7% of 8,603 movements | 4.6 |
| More than 60 minutes | 9.7% of 8,603 movements | 10.3 |
| More than 120 minutes | 3.4% of 8,603 movements | 29.4 |
| More than 180 minutes | 1.6% of 8,603 movements | 63.7 |
| More than 360 minutes | 0.3% of 8,603 movements | 296.7 |
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?
3.4% of 8,603 movements passed two hours.
The histogram shows the published delay bands. Bucket shares use all reported operations, including unmatched records; cancellations are reported separately.
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, 5.5% of 109 movements. Worst month: Dec 2021, 67.1% of 301 movements.
The line traces every month. Lower disruption is better; gaps are never zeros. Pandemic readings describe a different operating regime.
Every monthly observation
| Month | Disruption on arrivals |
|---|---|
| Jan 2018 | 38.3% of 553 movements |
| Feb 2018 | 22.7% of 503 movements |
| Mar 2018 | 32.3% of 545 movements |
| Apr 2018 | 25.6% of 523 movements |
| May 2018 | 19.8% of 519 movements |
| Jun 2018 | 17.2% of 500 movements |
| Jul 2018 | 13.4% of 514 movements |
| Aug 2018 | 12.3% of 513 movements |
| Sep 2018 | 10.1% of 484 movements |
| Oct 2018 | 17.2% of 513 movements |
| Nov 2018 | 13.8% of 535 movements |
| Dec 2018 | 25.8% of 570 movements |
| Jan 2019 | 33.3% of 588 movements |
| Feb 2019 | 23.1% of 533 movements |
| Mar 2019 | 65.9% of 574 movements |
| Apr 2019 | 46.0% of 433 movements |
| May 2019 | 29.5% of 386 movements |
| Jun 2019 | 38.6% of 376 movements |
| Jul 2019 | 27.3% of 403 movements |
| Aug 2019 | 19.5% of 411 movements |
| Sep 2019 | 24.8% of 387 movements |
| Oct 2019 | 29.9% of 415 movements |
| Nov 2019 | 27.1% of 442 movements |
| Dec 2019 | 37.3% of 461 movements |
| Jan 2020 | 43.2% of 474 movements |
| Feb 2020 | 58.8% of 449 movements |
| Mar 2020 | 31.0% of 348 movements |
| Apr 2020 | 46.0% of 50 movements |
| May 2020 | 46.2% of 26 movements — small sample, not ranked |
| Jun 2020 | 24.3% of 37 movements — small sample, not ranked |
| Jul 2020 | 11.1% of 36 movements — small sample, not ranked |
| Aug 2020 | 17.4% of 86 movements |
| Sep 2020 | 6.8% of 206 movements |
| Oct 2020 | 19.9% of 251 movements |
| Nov 2020 | 14.6% of 240 movements |
| Dec 2020 | 38.8% of 209 movements |
| Jan 2021 | 53.4% of 118 movements |
| Feb 2021 | 46.4% of 125 movements |
| Mar 2021 | 42.9% of 140 movements |
| Apr 2021 | 30.6% of 121 movements |
| May 2021 | 15.2% of 112 movements |
| Jun 2021 | 5.5% of 109 movements |
| Jul 2021 | 9.4% of 128 movements |
| Aug 2021 | 25.8% of 182 movements |
| Sep 2021 | 34.4% of 285 movements |
| Oct 2021 | 47.4% of 308 movements |
| Nov 2021 | 58.7% of 298 movements |
| Dec 2021 | 67.1% of 301 movements |
| Jan 2022 | 58.9% of 299 movements |
| Feb 2022 | 53.3% of 272 movements |
| Mar 2022 | 37.1% of 307 movements |
| Apr 2022 | 32.9% of 319 movements |
| May 2022 | 27.3% of 374 movements |
| Jun 2022 | 35.6% of 421 movements |
| Jul 2022 | 28.7% of 453 movements |
| Aug 2022 | 13.0% of 468 movements |
| Sep 2022 | 23.7% of 469 movements |
| Oct 2022 | 36.3% of 496 movements |
| Nov 2022 | 24.3% of 531 movements |
| Dec 2022 | 47.8% of 594 movements |
| Jan 2023 | 43.2% of 623 movements |
| Feb 2023 | 43.3% of 568 movements |
| Mar 2023 | 36.7% of 621 movements |
| Apr 2023 | 32.9% of 562 movements |
| May 2023 | 25.3% of 565 movements |
| Jun 2023 | 26.7% of 550 movements |
| Jul 2023 | 30.3% of 601 movements |
| Aug 2023 | 26.2% of 604 movements |
| Sep 2023 | 28.3% of 593 movements |
| Oct 2023 | 48.3% of 613 movements |
| Nov 2023 | 46.2% of 615 movements |
| Dec 2023 | 59.5% of 650 movements |
| Jan 2024 | 54.7% of 653 movements |
| Feb 2024 | 52.9% of 614 movements |
| Mar 2024 | 29.3% of 641 movements |
| Apr 2024 | 49.6% of 558 movements |
| May 2024 | 41.2% of 585 movements |
| Jun 2024 | 37.6% of 582 movements |
| Jul 2024 | 45.0% of 615 movements |
| Aug 2024 | 55.4% of 632 movements |
| Sep 2024 | 43.0% of 593 movements |
| Oct 2024 | 51.5% of 647 movements |
| Nov 2024 | 36.6% of 675 movements |
| Dec 2024 | 24.0% of 733 movements |
| Jan 2025 | 22.4% of 727 movements |
| Feb 2025 | 16.0% of 657 movements |
| Mar 2025 | 20.8% of 706 movements |
| Apr 2025 | 25.6% of 660 movements |
| May 2025 | 39.9% of 686 movements |
| Jun 2025 | 37.2% of 651 movements |
| Jul 2025 | 17.7% of 617 movements |
| Aug 2025 | 16.1% of 626 movements |
| Sep 2025 | 31.2% of 621 movements |
| Oct 2025 | 40.3% of 642 movements |
| Nov 2025 | 28.5% of 724 movements |
| Dec 2025 | 32.5% of 762 movements |
| Jan 2026 | 47.9% of 794 movements |
| Feb 2026 | 41.1% of 732 movements |
| Mar 2026 | 48.8% of 789 movements |
| Apr 2026 | 47.3% of 749 movements |
| May 2026 | 33.8% of 772 movements |
| Jun 2026 | 22.1% of 775 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.
| Event | Direction | Disruption that month | Baseline before | Return to baseline |
|---|---|---|---|---|
| Pandemic regime · Jun 2020 | Arrivals | 24.3% of 37 movements — small sample, not ranked | 35.8% across 4,242 flights | returned the next month |
| Pandemic regime · Jun 2020 | Departures | 27.0% of 37 movements — small sample, not ranked | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 28.7% of 453 movements | 40.7% across 3,494 flights | returned the next month |
| Summer 2022 breakdown · Jul 2022 | Departures | 70.0% of 456 movements | 50.3% across 3,477 flights | returned the next month |
| NATS system failure · Aug 2023 | Arrivals | 26.2% of 604 movements | 32.0% across 6,648 flights | returned the next month |
| NATS system failure · Aug 2023 | Departures | 41.8% of 605 movements | 43.7% across 6,647 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Arrivals | 20.8% of 706 movements | 37.6% across 7,645 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Departures | 25.9% of 706 movements | 42.5% across 7,645 flights | returned 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: Jan, 43.2% across 7 months. Lowest median: Aug, 17.8% 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.
Month-by-month table: median, observed range and sample
| Month | Median | Observed range | Sample |
|---|---|---|---|
| Jan | 43.2% | 22.4–58.9% | 7 months, 4,237 flights |
| Feb | 41.1% | 16.0–53.3% | 7 months, 3,879 flights |
| Mar | 36.7% | 20.8–65.9% | 7 months, 4,183 flights |
| Apr | 32.9% | 25.6–49.6% | 7 months, 3,804 flights |
| May | 29.5% | 19.8–41.2% | 7 months, 3,887 flights |
| Jun | 35.6% | 17.2–38.6% | 7 months, 3,855 flights |
| Jul | 28.0% | 13.4–45.0% | 6 months, 3,203 flights |
| Aug | 17.8% | 12.3–55.4% | 6 months, 3,254 flights |
| Sep | 26.6% | 10.1–43.0% | 6 months, 3,147 flights |
| Oct | 38.3% | 17.2–51.5% | 6 months, 3,326 flights |
| Nov | 27.8% | 13.8–46.2% | 6 months, 3,522 flights |
| Dec | 34.9% | 24.0–59.5% | 6 months, 3,770 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 ↔ HYDERABAD-RAJIV-GHANDI, 12.4% of 364 movements. Highest disruption: MAN ↔ MUMBAI, 69.3% of 192 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.
All route comparisons and sample flags
| Route | Disruption | Cancellations | Sample flag |
|---|---|---|---|
| LHR ↔ HYDERABAD-RAJIV-GHANDI | 12.4% of 364 movements | 1.1% of 364 movements | descriptive comparison |
| LHR ↔ CHENNAI | 19.0% of 363 movements | 0.3% of 363 movements | descriptive comparison |
| Heathrow ↔ Bangalore (Bengaluru) | 24.5% of 1,153 movements | 1.0% of 1,153 movements | descriptive comparison |
| LGW ↔ AHMEDABAD | 31.8% of 129 movements | no events in 129 movements | descriptive comparison |
| Heathrow ↔ Mumbai | 35.7% of 2,816 movements | 1.4% of 2,816 movements | descriptive comparison |
| Heathrow ↔ Delhi | 36.8% of 2,950 movements | 1.3% of 2,950 movements | descriptive comparison |
| LGW ↔ AMRITSAR | 43.0% of 107 movements | 2.8% of 107 movements | descriptive comparison |
| BHX ↔ AMRITSAR | 49.0% of 149 movements | 4.7% of 149 movements | descriptive comparison |
| BHX ↔ DELHI | 59.6% of 141 movements | 0.7% of 141 movements | descriptive comparison |
| MAN ↔ DELHI | 63.6% of 118 movements | 5.1% of 118 movements | descriptive comparison |
| MAN ↔ MUMBAI | 69.3% of 192 movements | 5.7% of 192 movements | descriptive comparison |
| LGW ↔ GOA-INTERNATIONAL | 25.6% of 39 movements — small sample, not ranked | no events in 39 movements — small sample, not ranked | small sample; not ranked |
| LHR ↔ AHMEDABAD | 24.3% of 37 movements — small sample, not ranked | no events in 37 movements — small sample, not ranked | small sample; not ranked |
| MAN ↔ GOA-INTERNATIONAL | 25.0% of 40 movements — small sample, not ranked | no events in 40 movements — small sample, not ranked | small 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?
4 published groups have enough arrivals to describe.
These operations are not matched for season, aircraft or time of day. The table makes no causal comparison.
| UK airport | Disruption | Sample flag |
|---|---|---|
| Birmingham | 54.1% of 290 movements | descriptive comparison |
| Gatwick | 35.8% of 279 movements | descriptive comparison |
| Heathrow | 32.5% of 7,684 movements | descriptive comparison |
| Manchester | 62.3% of 350 movements | descriptive 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
34.5% of 8,603 movements arrivals were disrupted, against 40.3% of 8,620 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
1.6% of 8,603 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
India appears from Jan 2018 to Jun 2026 with 48,706 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 41.
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?
34.5% of 8,603 movements over July 2025 to June 2026.
How often are they cancelled?
1.4% of 8,603 movements at short notice.
How late is late?
41.9–67.1 minutes; delayed denominator 2,848–4,364
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 complainDefinitions, 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.