How often are these flights late or cancelled?
Thy Turkish Airlines
In the twelve months from July 2025 to June 2026, 24.0% of 6,408 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 76.0% of 6,408 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
24.0% of 6,408 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 |
|---|---|---|---|
| 24.0% of 6,408 movements | 0.3% of 6,408 movements | 18.4–45.8 minutes; delayed denominator 1,517–3,435 | 0.1% of 6,408 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?
0.1% of 6,408 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 0.3% of 6,408 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 23.7% of 6,408 movements | 4.2 |
| More than 30 minutes | 10.1% of 6,408 movements | 9.9 |
| More than 60 minutes | 1.9% of 6,408 movements | 53.8 |
| More than 120 minutes | 0.3% of 6,408 movements | 305.1 |
| More than 180 minutes | 0.1% of 6,408 movements | 801.0 |
| More than 360 minutes | 0.0% of 6,408 movements | 3,204.0 |
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?
0.3% of 6,408 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: Aug 2020, 3.8% of 339 movements. Worst month: Oct 2023, 55.8% of 579 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 | 42.7% of 375 movements |
| Feb 2018 | 19.7% of 340 movements |
| Mar 2018 | 28.3% of 382 movements |
| Apr 2018 | 20.9% of 387 movements |
| May 2018 | 13.6% of 398 movements |
| Jun 2018 | 19.2% of 400 movements |
| Jul 2018 | 31.3% of 415 movements |
| Aug 2018 | 32.3% of 418 movements |
| Sep 2018 | 45.6% of 399 movements |
| Oct 2018 | 28.4% of 401 movements |
| Nov 2018 | 13.5% of 364 movements |
| Dec 2018 | 30.4% of 381 movements |
| Jan 2019 | 19.4% of 382 movements |
| Feb 2019 | 25.3% of 364 movements |
| Mar 2019 | 35.6% of 404 movements |
| Apr 2019 | 31.5% of 409 movements |
| May 2019 | 29.2% of 462 movements |
| Jun 2019 | 30.9% of 433 movements |
| Jul 2019 | 45.2% of 467 movements |
| Aug 2019 | 49.3% of 469 movements |
| Sep 2019 | 40.6% of 456 movements |
| Oct 2019 | 33.0% of 452 movements |
| Nov 2019 | 8.1% of 381 movements |
| Dec 2019 | 9.9% of 392 movements |
| Jan 2020 | 8.6% of 394 movements |
| Feb 2020 | 47.4% of 367 movements |
| Mar 2020 | 18.6% of 258 movements |
| Apr 2020 | suppressed: fewer than twenty movements |
| May 2020 | suppressed: fewer than twenty movements |
| Jun 2020 | 9.4% of 53 movements |
| Jul 2020 | 5.8% of 226 movements |
| Aug 2020 | 3.8% of 339 movements |
| Sep 2020 | 4.3% of 324 movements |
| Oct 2020 | 8.2% of 245 movements |
| Nov 2020 | 6.1% of 114 movements |
| Dec 2020 | 20.3% of 138 movements |
| Jan 2021 | 20.4% of 93 movements |
| Feb 2021 | 17.7% of 79 movements |
| Mar 2021 | 27.6% of 116 movements |
| Apr 2021 | 7.2% of 167 movements |
| May 2021 | 10.9% of 64 movements |
| Jun 2021 | 2.1% of 48 movements — small sample, not ranked |
| Jul 2021 | 7.1% of 98 movements |
| Aug 2021 | 17.2% of 99 movements |
| Sep 2021 | 17.2% of 128 movements |
| Oct 2021 | 16.2% of 402 movements |
| Nov 2021 | 16.1% of 322 movements |
| Dec 2021 | 26.2% of 393 movements |
| Jan 2022 | 37.3% of 373 movements |
| Feb 2022 | 33.2% of 316 movements |
| Mar 2022 | 21.0% of 371 movements |
| Apr 2022 | 20.8% of 542 movements |
| May 2022 | 24.6% of 517 movements |
| Jun 2022 | 37.4% of 591 movements |
| Jul 2022 | 38.7% of 697 movements |
| Aug 2022 | 30.4% of 720 movements |
| Sep 2022 | 51.4% of 621 movements |
| Oct 2022 | 35.6% of 547 movements |
| Nov 2022 | 21.9% of 429 movements |
| Dec 2022 | 42.2% of 479 movements |
| Jan 2023 | 27.4% of 492 movements |
| Feb 2023 | 34.5% of 432 movements |
| Mar 2023 | 28.8% of 479 movements |
| Apr 2023 | 29.5% of 535 movements |
| May 2023 | 24.3% of 564 movements |
| Jun 2023 | 31.5% of 571 movements |
| Jul 2023 | 55.1% of 626 movements |
| Aug 2023 | 48.5% of 641 movements |
| Sep 2023 | 44.7% of 589 movements |
| Oct 2023 | 55.8% of 579 movements |
| Nov 2023 | 55.4% of 534 movements |
| Dec 2023 | 47.3% of 560 movements |
| Jan 2024 | 38.1% of 551 movements |
| Feb 2024 | 27.5% of 517 movements |
| Mar 2024 | 13.0% of 547 movements |
| Apr 2024 | 24.4% of 541 movements |
| May 2024 | 16.1% of 502 movements |
| Jun 2024 | 35.7% of 521 movements |
| Jul 2024 | 46.0% of 541 movements |
| Aug 2024 | 45.9% of 560 movements |
| Sep 2024 | 39.7% of 527 movements |
| Oct 2024 | 29.8% of 483 movements |
| Nov 2024 | 13.7% of 454 movements |
| Dec 2024 | 15.2% of 495 movements |
| Jan 2025 | 15.0% of 494 movements |
| Feb 2025 | 16.4% of 439 movements |
| Mar 2025 | 5.7% of 472 movements |
| Apr 2025 | 11.6% of 516 movements |
| May 2025 | 15.6% of 531 movements |
| Jun 2025 | 19.7% of 554 movements |
| Jul 2025 | 28.8% of 597 movements |
| Aug 2025 | 26.1% of 589 movements |
| Sep 2025 | 33.2% of 570 movements |
| Oct 2025 | 33.8% of 577 movements |
| Nov 2025 | 13.3% of 495 movements |
| Dec 2025 | 23.5% of 510 movements |
| Jan 2026 | 41.8% of 514 movements |
| Feb 2026 | 20.8% of 433 movements |
| Mar 2026 | 6.2% of 518 movements |
| Apr 2026 | 20.7% of 555 movements |
| May 2026 | 12.1% of 535 movements |
| Jun 2026 | 23.7% of 515 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 | 9.4% of 53 movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Pandemic regime · Jun 2020 | Departures | 30.9% of 55 movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 38.7% of 697 movements | 22.9% across 4,152 flights | returned after 4 months |
| Summer 2022 breakdown · Jul 2022 | Departures | 79.6% of 692 movements | 37.4% across 4,299 flights | returned after 4 months |
| NATS system failure · Aug 2023 | Arrivals | 48.5% of 641 movements | 34.4% across 6,495 flights | returned after 6 months |
| NATS system failure · Aug 2023 | Departures | 65.9% of 637 movements | 51.5% across 6,500 flights | returned after 5 months |
| Heathrow fire closure · Mar 2025 | Arrivals | 5.7% of 472 movements | 25.9% across 6,104 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Departures | 14.2% of 473 movements | 37.3% across 6,109 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: Sep, 42.6% across 6 months. Lowest median: Nov, 13.6% 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 | 37.3% | 15.0–42.7% | 7 months, 3,181 flights |
| Feb | 25.3% | 16.4–34.5% | 7 months, 2,841 flights |
| Mar | 21.0% | 5.7–35.6% | 7 months, 3,173 flights |
| Apr | 20.9% | 11.6–31.5% | 7 months, 3,485 flights |
| May | 16.1% | 12.1–29.2% | 7 months, 3,509 flights |
| Jun | 30.9% | 19.2–37.4% | 7 months, 3,585 flights |
| Jul | 42.0% | 28.8–55.1% | 6 months, 3,343 flights |
| Aug | 39.1% | 26.1–49.3% | 6 months, 3,397 flights |
| Sep | 42.6% | 33.2–51.4% | 6 months, 3,162 flights |
| Oct | 33.4% | 28.4–55.8% | 6 months, 3,039 flights |
| Nov | 13.6% | 8.1–55.4% | 6 months, 2,657 flights |
| Dec | 27.0% | 9.9–47.3% | 6 months, 2,817 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: STN ↔ ISTANBUL, 9.5% of 201 movements. Highest disruption: MAN ↔ ISTANBUL, 27.1% of 1,341 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 |
|---|---|---|---|
| STN ↔ ISTANBUL | 9.5% of 201 movements | no events in 201 movements | descriptive comparison |
| Edinburgh ↔ Istanbul | 20.3% of 601 movements | 0.7% of 601 movements | descriptive comparison |
| Gatwick ↔ Istanbul | 22.0% of 1,224 movements | 0.2% of 1,224 movements | descriptive comparison |
| Birmingham ↔ Istanbul | 22.7% of 770 movements | 0.1% of 770 movements | descriptive comparison |
| Heathrow ↔ Istanbul | 25.8% of 2,265 movements | 0.0% of 2,265 movements | descriptive comparison |
| Manchester ↔ Istanbul | 27.1% of 1,341 movements | 0.7% of 1,341 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?
6 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 | 22.8% of 771 movements | descriptive comparison |
| Edinburgh | 20.3% of 601 movements | descriptive comparison |
| Gatwick | 21.9% of 1,226 movements | descriptive comparison |
| Heathrow | 25.8% of 2,265 movements | descriptive comparison |
| Manchester | 27.1% of 1,341 movements | descriptive comparison |
| Stansted | 9.5% of 201 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
24.0% of 6,408 movements arrivals were disrupted, against 29.5% of 6,409 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
0.1% of 6,408 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
Thy Turkish Airlines appears from Jan 2018 to Jun 2026 with 42,664 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 65.
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?
24.0% of 6,408 movements over July 2025 to June 2026.
How often are they cancelled?
0.3% of 6,408 movements at short notice.
How late is late?
18.4–45.8 minutes; delayed denominator 1,517–3,435
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.