How often are these flights late or cancelled?
Qatar
In the twelve months from July 2025 to June 2026, 20.3% of 5,800 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 79.7% of 5,800 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
20.3% of 5,800 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 |
|---|---|---|---|
| 20.3% of 5,800 movements | 4.8% of 5,800 movements | 17.8–52.6 minutes; delayed denominator 895–2,335 | 0.3% of 5,800 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 5,800 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 4.8% of 5,800 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 15.4% of 5,800 movements | 6.5 |
| More than 30 minutes | 6.1% of 5,800 movements | 16.4 |
| More than 60 minutes | 1.7% of 5,800 movements | 57.4 |
| More than 120 minutes | 0.6% of 5,800 movements | 175.8 |
| More than 180 minutes | 0.3% of 5,800 movements | 290.0 |
| More than 360 minutes | 0.0% of 5,800 movements | 2,900.0 |
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?
0.6% of 5,800 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, 84.4% 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 | 30.7% of 335 movements |
| Feb 2018 | 18.9% of 317 movements |
| Mar 2018 | 13.0% of 345 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 | 19.3% of 420 movements |
| Sep 2018 | 30.8% of 413 movements |
| Oct 2018 | 23.9% of 414 movements |
| Nov 2018 | 9.2% of 404 movements |
| Dec 2018 | 18.2% of 451 movements |
| Jan 2019 | 24.6% of 451 movements |
| Feb 2019 | 13.7% of 401 movements |
| Mar 2019 | 21.0% of 448 movements |
| Apr 2019 | 28.7% of 435 movements |
| May 2019 | 12.0% of 416 movements |
| Jun 2019 | 18.9% of 444 movements |
| Jul 2019 | 18.5% of 508 movements |
| Aug 2019 | 23.9% of 510 movements |
| Sep 2019 | 28.7% of 491 movements |
| Oct 2019 | 23.7% of 486 movements |
| Nov 2019 | 13.2% of 456 movements |
| Dec 2019 | 17.1% of 473 movements |
| Jan 2020 | 19.4% of 474 movements |
| Feb 2020 | 36.4% of 445 movements |
| Mar 2020 | 10.3% of 388 movements |
| Apr 2020 | 16.1% of 118 movements |
| May 2020 | 23.3% of 60 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 | 60.0% of 25 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 202 movements |
| Dec 2021 | 41.8% of 251 movements |
| Jan 2022 | 40.7% of 246 movements |
| Feb 2022 | 37.3% of 255 movements |
| Mar 2022 | 34.3% of 283 movements |
| Apr 2022 | 47.1% of 274 movements |
| May 2022 | 37.5% of 285 movements |
| Jun 2022 | 31.6% of 313 movements |
| Jul 2022 | 33.8% of 343 movements |
| Aug 2022 | 25.1% of 359 movements |
| Sep 2022 | 35.0% of 334 movements |
| Oct 2022 | 36.9% of 344 movements |
| Nov 2022 | 10.4% of 376 movements |
| Dec 2022 | 22.8% of 386 movements |
| Jan 2023 | 25.7% of 374 movements |
| Feb 2023 | 17.1% of 350 movements |
| Mar 2023 | 21.5% of 386 movements |
| Apr 2023 | 9.6% of 374 movements |
| May 2023 | 10.9% of 394 movements |
| Jun 2023 | 13.0% of 393 movements |
| Jul 2023 | 21.3% of 470 movements |
| Aug 2023 | 12.1% of 471 movements |
| Sep 2023 | 13.4% of 439 movements |
| Oct 2023 | 23.8% of 445 movements |
| Nov 2023 | 25.0% of 484 movements |
| Dec 2023 | 25.3% of 499 movements |
| Jan 2024 | 25.0% of 513 movements |
| Feb 2024 | 29.0% of 479 movements |
| Mar 2024 | 8.0% of 515 movements |
| Apr 2024 | 25.1% of 510 movements |
| May 2024 | 17.0% of 524 movements |
| Jun 2024 | 19.2% of 510 movements |
| Jul 2024 | 12.9% of 519 movements |
| Aug 2024 | 15.2% of 528 movements |
| Sep 2024 | 12.4% of 508 movements |
| Oct 2024 | 27.2% of 503 movements |
| Nov 2024 | 5.5% of 494 movements |
| Dec 2024 | 9.6% of 510 movements |
| Jan 2025 | 12.3% of 511 movements |
| Feb 2025 | 7.0% of 460 movements |
| Mar 2025 | 7.2% of 489 movements |
| Apr 2025 | 8.9% of 531 movements |
| May 2025 | 9.7% of 528 movements |
| Jun 2025 | 30.0% of 536 movements |
| Jul 2025 | 6.6% of 562 movements |
| Aug 2025 | 12.1% of 563 movements |
| Sep 2025 | 17.3% of 543 movements |
| Oct 2025 | 14.7% of 565 movements |
| Nov 2025 | 7.6% of 577 movements |
| Dec 2025 | 16.6% of 598 movements |
| Jan 2026 | 30.7% of 600 movements |
| Feb 2026 | 19.8% of 511 movements |
| Mar 2026 | 84.4% of 301 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 | 20.8% across 4,853 flights | returned the next month |
| Pandemic regime · Jun 2020 | Departures | 20.6% of 97 movements | 23.9% across 4,855 flights | returned after 4 months |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 33.8% of 343 movements | 29.6% across 2,641 flights | returned the next month |
| Summer 2022 breakdown · Jul 2022 | Departures | 81.9% of 343 movements | 58.4% across 2,659 flights | returned after 3 months |
| NATS system failure · Aug 2023 | Arrivals | 12.1% of 471 movements | 20.8% across 4,540 flights | returned the next month |
| NATS system failure · Aug 2023 | Departures | 45.6% of 472 movements | 39.7% across 4,540 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Arrivals | 7.2% of 489 movements | 14.3% across 6,092 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Departures | 17.4% of 489 movements | 34.4% across 6,097 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, 25.7% across 7 months. Lowest median: Nov, 9.8% 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 | 25.7% | 12.3–40.7% | 7 months, 3,030 flights |
| Feb | 18.9% | 7.0–37.3% | 7 months, 2,773 flights |
| Mar | 21.0% | 7.2–84.4% | 7 months, 2,767 flights |
| Apr | 25.1% | 8.9–47.1% | 7 months, 2,687 flights |
| May | 11.3% | 3.1–37.5% | 7 months, 2,859 flights |
| Jun | 19.2% | 6.5–31.6% | 7 months, 2,969 flights |
| Jul | 15.7% | 6.6–33.8% | 6 months, 2,822 flights |
| Aug | 17.2% | 12.1–25.1% | 6 months, 2,851 flights |
| Sep | 23.0% | 12.4–35.0% | 6 months, 2,728 flights |
| Oct | 23.9% | 14.7–36.9% | 6 months, 2,757 flights |
| Nov | 9.8% | 5.5–25.0% | 6 months, 2,791 flights |
| Dec | 17.7% | 9.6–25.3% | 6 months, 2,917 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, 20.0% of 3,206 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 | 20.0% of 3,206 movements | 3.7% of 3,206 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 | 20.0% of 3,206 movements | descriptive comparison |
| Manchester | 20.8% of 1,163 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
20.3% of 5,800 movements arrivals were disrupted, against 35.7% of 5,810 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 5,800 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 appears from Jan 2018 to Jun 2026 with 38,341 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 13.
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?
20.3% of 5,800 movements over July 2025 to June 2026.
How often are they cancelled?
4.8% of 5,800 movements at short notice.
How late is late?
17.8–52.6 minutes; delayed denominator 895–2,335
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.