How often are these flights late or cancelled?
Qatar Airways
In the twelve months from July 2025 to June 2026, 20.4% of 5,365 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 79.6% of 5,365 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
20.4% of 5,365 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 |
|---|---|---|---|
| 20.4% of 5,365 movements | 5.1% of 5,365 movements | 17.7–52.5 minutes; delayed denominator 822–2,155 | 0.4% of 5,365 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?
0.4% of 5,365 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 5.1% of 5,365 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 15.3% of 5,365 movements | 6.5 |
| More than 30 minutes | 5.8% of 5,365 movements | 17.1 |
| More than 60 minutes | 1.8% of 5,365 movements | 55.9 |
| More than 120 minutes | 0.6% of 5,365 movements | 167.7 |
| More than 180 minutes | 0.4% of 5,365 movements | 255.5 |
| More than 360 minutes | 0.0% of 5,365 movements | 2,682.5 |
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?
0.6% of 5,365 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: Nov 2020, 2.0% of 204 movements. Worst month: Mar 2026, 83.7% of 313 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 | 30.7% of 319 movements |
| Feb 2018 | 19.0% of 289 movements |
| Mar 2018 | 12.2% of 320 movements |
| Apr 2018 | 12.6% of 309 movements |
| May 2018 | 3.1% of 359 movements |
| Jun 2018 | 6.5% of 400 movements |
| Jul 2018 | 11.9% of 420 movements |
| Aug 2018 | 19.2% of 421 movements |
| Sep 2018 | 30.8% of 413 movements |
| Oct 2018 | 23.9% of 414 movements |
| Nov 2018 | 9.2% of 404 movements |
| Dec 2018 | 17.3% of 421 movements |
| Jan 2019 | 24.5% of 420 movements |
| Feb 2019 | 13.9% of 380 movements |
| Mar 2019 | 20.9% of 421 movements |
| Apr 2019 | 29.4% of 405 movements |
| May 2019 | 11.6% of 404 movements |
| Jun 2019 | 19.0% of 416 movements |
| Jul 2019 | 19.0% of 479 movements |
| Aug 2019 | 24.8% of 480 movements |
| Sep 2019 | 29.8% of 463 movements |
| Oct 2019 | 24.6% of 455 movements |
| Nov 2019 | 11.0% of 428 movements |
| Dec 2019 | 17.8% of 443 movements |
| Jan 2020 | 16.5% of 443 movements |
| Feb 2020 | 33.2% of 416 movements |
| Mar 2020 | 9.5% of 370 movements |
| Apr 2020 | 16.1% of 118 movements |
| May 2020 | 24.6% of 61 movements |
| Jun 2020 | 3.3% of 91 movements |
| Jul 2020 | 6.7% of 150 movements |
| Aug 2020 | 4.3% of 161 movements |
| Sep 2020 | 7.6% of 198 movements |
| Oct 2020 | 4.2% of 216 movements |
| Nov 2020 | 2.0% of 204 movements |
| Dec 2020 | 11.0% of 228 movements |
| Jan 2021 | 4.1% of 217 movements |
| Feb 2021 | 5.1% of 177 movements |
| Mar 2021 | 21.1% of 133 movements |
| Apr 2021 | 62.5% of 24 movements — small sample, not ranked |
| May 2021 | suppressed: fewer than twenty movements |
| Jun 2021 | 53.2% of 109 movements |
| Jul 2021 | 7.9% of 76 movements |
| Aug 2021 | 20.8% of 106 movements |
| Sep 2021 | 26.2% of 145 movements |
| Oct 2021 | 17.1% of 205 movements |
| Nov 2021 | 12.9% of 201 movements |
| Dec 2021 | 39.3% of 234 movements |
| Jan 2022 | 38.1% of 215 movements |
| Feb 2022 | 37.4% of 227 movements |
| Mar 2022 | 36.5% of 252 movements |
| Apr 2022 | 51.0% of 245 movements |
| May 2022 | 39.4% of 254 movements |
| Jun 2022 | 33.2% of 283 movements |
| Jul 2022 | 36.2% of 312 movements |
| Aug 2022 | 26.9% of 327 movements |
| Sep 2022 | 37.2% of 304 movements |
| Oct 2022 | 39.9% of 313 movements |
| Nov 2022 | 9.1% of 330 movements |
| Dec 2022 | 19.6% of 326 movements |
| Jan 2023 | 26.3% of 312 movements |
| Feb 2023 | 16.4% of 292 movements |
| Mar 2023 | 19.5% of 329 movements |
| Apr 2023 | 9.3% of 344 movements |
| May 2023 | 11.3% of 363 movements |
| Jun 2023 | 12.7% of 363 movements |
| Jul 2023 | 21.2% of 439 movements |
| Aug 2023 | 11.1% of 442 movements |
| Sep 2023 | 12.7% of 408 movements |
| Oct 2023 | 24.0% of 412 movements |
| Nov 2023 | 23.6% of 424 movements |
| Dec 2023 | 23.8% of 453 movements |
| Jan 2024 | 24.1% of 452 movements |
| Feb 2024 | 28.7% of 422 movements |
| Mar 2024 | 7.3% of 454 movements |
| Apr 2024 | 24.4% of 451 movements |
| May 2024 | 17.1% of 463 movements |
| Jun 2024 | 20.7% of 450 movements |
| Jul 2024 | 12.7% of 465 movements |
| Aug 2024 | 15.2% of 466 movements |
| Sep 2024 | 12.3% of 448 movements |
| Oct 2024 | 27.3% of 451 movements |
| Nov 2024 | 5.6% of 464 movements |
| Dec 2024 | 9.8% of 479 movements |
| Jan 2025 | 12.7% of 480 movements |
| Feb 2025 | 7.4% of 432 movements |
| Mar 2025 | 6.3% of 457 movements |
| Apr 2025 | 9.0% of 479 movements |
| May 2025 | 10.3% of 475 movements |
| Jun 2025 | 28.2% of 486 movements |
| Jul 2025 | 6.5% of 508 movements |
| Aug 2025 | 12.9% of 511 movements |
| Sep 2025 | 17.7% of 491 movements |
| Oct 2025 | 14.6% of 513 movements |
| Nov 2025 | 6.0% of 520 movements |
| Dec 2025 | 16.9% of 537 movements |
| Jan 2026 | 28.3% of 537 movements |
| Feb 2026 | 18.7% of 455 movements |
| Mar 2026 | 83.7% of 313 movements |
| Apr 2026 | 26.4% of 254 movements |
| May 2026 | 11.3% of 353 movements |
| Jun 2026 | 27.9% of 373 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 | 3.3% of 91 movements | 20.5% across 4,572 flights | returned the next month |
| Pandemic regime · Jun 2020 | Departures | 20.0% of 95 movements | 23.7% across 4,574 flights | returned after 4 months |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 36.2% of 312 movements | 30.0% across 2,443 flights | returned the next month |
| Summer 2022 breakdown · Jul 2022 | Departures | 81.7% of 312 movements | 60.5% across 2,458 flights | returned after 2 months |
| NATS system failure · Aug 2023 | Arrivals | 11.1% of 442 movements | 20.8% across 4,042 flights | returned the next month |
| NATS system failure · Aug 2023 | Departures | 43.1% of 441 movements | 37.8% across 4,046 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Arrivals | 6.3% of 457 movements | 14.4% across 5,503 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Departures | 16.2% of 457 movements | 33.2% across 5,504 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, 26.3% across 7 months. Lowest median: Nov, 9.1% 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 | 26.3% | 12.7–38.1% | 7 months, 2,735 flights |
| Feb | 18.7% | 7.4–37.4% | 7 months, 2,497 flights |
| Mar | 19.5% | 6.3–83.7% | 7 months, 2,546 flights |
| Apr | 24.4% | 9.0–51.0% | 7 months, 2,487 flights |
| May | 11.3% | 3.1–39.4% | 7 months, 2,671 flights |
| Jun | 20.7% | 6.5–33.2% | 7 months, 2,771 flights |
| Jul | 15.8% | 6.5–36.2% | 6 months, 2,623 flights |
| Aug | 17.2% | 11.1–26.9% | 6 months, 2,647 flights |
| Sep | 23.8% | 12.3–37.2% | 6 months, 2,527 flights |
| Oct | 24.3% | 14.6–39.9% | 6 months, 2,558 flights |
| Nov | 9.1% | 5.6–23.6% | 6 months, 2,570 flights |
| Dec | 17.6% | 9.8–23.8% | 6 months, 2,659 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 ↔ DOHA-HAMAD, 19.6% of 2,746 movements. Highest disruption: BHX ↔ DOHA-HAMAD, 21.2% of 335 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 |
|---|---|---|---|
| Heathrow ↔ Doha Hamad | 19.6% of 2,746 movements | 3.6% of 2,746 movements | descriptive comparison |
| Edinburgh ↔ Doha Hamad | 20.0% of 619 movements | 7.1% of 619 movements | descriptive comparison |
| LGW ↔ DOHA-HAMAD | 20.3% of 477 movements | 7.8% of 477 movements | descriptive comparison |
| Manchester ↔ Doha Hamad | 20.8% of 1,163 movements | 5.6% of 1,163 movements | descriptive comparison |
| BHX ↔ DOHA-HAMAD | 21.2% of 335 movements | 4.5% of 335 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.
Which UK airports appear in this record?
5 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 | 21.2% of 335 movements | descriptive comparison |
| Edinburgh | 20.0% of 619 movements | descriptive comparison |
| Gatwick | 20.3% of 477 movements | descriptive comparison |
| Heathrow | 20.1% of 2,769 movements | descriptive comparison |
| Manchester | 20.9% of 1,165 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
20.4% of 5,365 movements arrivals were disrupted, against 35.8% of 5,363 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
0.4% of 5,365 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
Qatar Airways appears from Jan 2018 to Jun 2026 with 35,585 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 44.
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?
20.4% of 5,365 movements over July 2025 to June 2026.
How often are they cancelled?
5.1% of 5,365 movements at short notice.
How late is late?
17.7–52.5 minutes; delayed denominator 822–2,155
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.