How often are these flights late or cancelled?
Air Portugal
In the twelve months from July 2025 to June 2026, 35.4% of 3,845 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 64.6% of 3,845 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
35.4% of 3,845 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 |
|---|---|---|---|
| 35.4% of 3,845 movements | 0.5% of 3,845 movements | 22.4–46.5 minutes; delayed denominator 1,340–2,607 | 0.1% of 3,845 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 3,845 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 0.5% of 3,845 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 34.9% of 3,845 movements | 2.9 |
| More than 30 minutes | 17.0% of 3,845 movements | 5.9 |
| More than 60 minutes | 4.9% of 3,845 movements | 20.5 |
| More than 120 minutes | 0.7% of 3,845 movements | 153.8 |
| More than 180 minutes | 0.1% of 3,845 movements | 1,922.5 |
| More than 360 minutes | no events in 3,845 movements | No observed events; this is not zero risk. |
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 3,845 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: Sep 2020, 0.9% of 114 movements. Worst month: Sep 2024, 70.3% of 340 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 | 29.1% of 381 movements |
| Feb 2018 | 33.5% of 343 movements |
| Mar 2018 | 39.1% of 394 movements |
| Apr 2018 | 43.4% of 410 movements |
| May 2018 | 42.9% of 422 movements |
| Jun 2018 | 49.4% of 425 movements |
| Jul 2018 | 40.7% of 442 movements |
| Aug 2018 | 43.1% of 441 movements |
| Sep 2018 | 44.3% of 427 movements |
| Oct 2018 | 45.8% of 432 movements |
| Nov 2018 | 28.7% of 331 movements |
| Dec 2018 | 31.8% of 336 movements |
| Jan 2019 | 24.8% of 400 movements |
| Feb 2019 | 17.3% of 359 movements |
| Mar 2019 | 20.6% of 399 movements |
| Apr 2019 | 34.9% of 424 movements |
| May 2019 | 34.6% of 361 movements |
| Jun 2019 | 30.4% of 352 movements |
| Jul 2019 | 45.2% of 363 movements |
| Aug 2019 | 46.7% of 364 movements |
| Sep 2019 | 54.8% of 352 movements |
| Oct 2019 | 32.9% of 350 movements |
| Nov 2019 | 22.4% of 303 movements |
| Dec 2019 | 38.0% of 334 movements |
| Jan 2020 | 32.1% of 324 movements |
| Feb 2020 | 31.5% of 289 movements |
| Mar 2020 | 15.4% of 228 movements |
| Apr 2020 | suppressed: fewer than twenty movements |
| May 2020 | suppressed: fewer than twenty movements |
| Jun 2020 | suppressed: fewer than twenty movements |
| Jul 2020 | 3.2% of 62 movements |
| Aug 2020 | 2.8% of 107 movements |
| Sep 2020 | 0.9% of 114 movements |
| Oct 2020 | 2.2% of 89 movements |
| Nov 2020 | 1.1% of 88 movements |
| Dec 2020 | 3.4% of 118 movements |
| Jan 2021 | 9.2% of 65 movements |
| Feb 2021 | suppressed: fewer than twenty movements |
| Mar 2021 | suppressed: fewer than twenty movements |
| Apr 2021 | 13.3% of 30 movements — small sample, not ranked |
| May 2021 | 2.2% of 92 movements |
| Jun 2021 | 2.1% of 191 movements |
| Jul 2021 | 9.6% of 177 movements |
| Aug 2021 | 12.3% of 179 movements |
| Sep 2021 | 11.2% of 152 movements |
| Oct 2021 | 15.6% of 179 movements |
| Nov 2021 | 18.5% of 302 movements |
| Dec 2021 | 13.2% of 304 movements |
| Jan 2022 | 15.1% of 239 movements |
| Feb 2022 | 7.8% of 244 movements |
| Mar 2022 | 5.7% of 298 movements |
| Apr 2022 | 31.7% of 334 movements |
| May 2022 | 31.4% of 357 movements |
| Jun 2022 | 40.3% of 357 movements |
| Jul 2022 | 47.6% of 368 movements |
| Aug 2022 | 40.1% of 369 movements |
| Sep 2022 | 59.4% of 355 movements |
| Oct 2022 | 46.8% of 365 movements |
| Nov 2022 | 26.2% of 282 movements |
| Dec 2022 | 36.5% of 307 movements |
| Jan 2023 | 30.0% of 313 movements |
| Feb 2023 | 31.1% of 280 movements |
| Mar 2023 | 43.0% of 321 movements |
| Apr 2023 | 44.5% of 346 movements |
| May 2023 | 42.6% of 359 movements |
| Jun 2023 | 43.4% of 350 movements |
| Jul 2023 | 41.9% of 377 movements |
| Aug 2023 | 45.0% of 373 movements |
| Sep 2023 | 48.6% of 364 movements |
| Oct 2023 | 48.1% of 366 movements |
| Nov 2023 | 33.9% of 298 movements |
| Dec 2023 | 35.5% of 307 movements |
| Jan 2024 | 19.8% of 298 movements |
| Feb 2024 | 23.1% of 273 movements |
| Mar 2024 | 34.8% of 305 movements |
| Apr 2024 | 43.4% of 343 movements |
| May 2024 | 43.6% of 351 movements |
| Jun 2024 | 39.1% of 338 movements |
| Jul 2024 | 42.9% of 345 movements |
| Aug 2024 | 45.1% of 344 movements |
| Sep 2024 | 70.3% of 340 movements |
| Oct 2024 | 59.3% of 329 movements |
| Nov 2024 | 31.8% of 289 movements |
| Dec 2024 | 37.6% of 298 movements |
| Jan 2025 | 35.7% of 308 movements |
| Feb 2025 | 33.0% of 270 movements |
| Mar 2025 | 40.8% of 306 movements |
| Apr 2025 | 44.5% of 337 movements |
| May 2025 | 37.0% of 346 movements |
| Jun 2025 | 34.6% of 338 movements |
| Jul 2025 | 53.4% of 354 movements |
| Aug 2025 | 44.6% of 352 movements |
| Sep 2025 | 48.2% of 336 movements |
| Oct 2025 | 42.7% of 337 movements |
| Nov 2025 | 34.5% of 293 movements |
| Dec 2025 | 28.3% of 290 movements |
| Jan 2026 | 27.5% of 305 movements |
| Feb 2026 | 25.7% of 276 movements |
| Mar 2026 | 27.6% of 304 movements |
| Apr 2026 | 23.8% of 336 movements |
| May 2026 | 30.0% of 343 movements |
| Jun 2026 | 32.3% of 319 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 | suppressed: fewer than twenty movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Pandemic regime · Jun 2020 | Departures | suppressed: fewer than twenty movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 47.6% of 368 movements | 17.7% across 3,122 flights | still above it 8 months later |
| Summer 2022 breakdown · Jul 2022 | Departures | 65.0% of 366 movements | 21.7% across 3,125 flights | still above it 8 months later |
| NATS system failure · Aug 2023 | Arrivals | 45.0% of 373 movements | 40.5% across 4,024 flights | returned after 3 months |
| NATS system failure · Aug 2023 | Departures | 50.9% of 373 movements | 49.0% across 4,023 flights | returned after 2 months |
| Heathrow fire closure · Mar 2025 | Arrivals | 40.8% of 306 movements | 43.0% across 3,860 flights | returned after 2 months |
| Heathrow fire closure · Mar 2025 | Departures | 51.1% of 309 movements | 51.5% across 3,871 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, 51.7% across 6 months. Lowest median: Feb, 25.7% across 7 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 | 27.5% | 15.1–35.7% | 7 months, 2,244 flights |
| Feb | 25.7% | 7.8–33.5% | 7 months, 2,045 flights |
| Mar | 34.8% | 5.7–43.0% | 7 months, 2,327 flights |
| Apr | 43.4% | 23.8–44.5% | 7 months, 2,530 flights |
| May | 37.0% | 30.0–43.6% | 7 months, 2,539 flights |
| Jun | 39.1% | 30.4–49.4% | 7 months, 2,479 flights |
| Jul | 44.0% | 40.7–53.4% | 6 months, 2,249 flights |
| Aug | 44.8% | 40.1–46.7% | 6 months, 2,243 flights |
| Sep | 51.7% | 44.3–70.3% | 6 months, 2,174 flights |
| Oct | 46.3% | 32.9–59.3% | 6 months, 2,179 flights |
| Nov | 30.3% | 22.4–34.5% | 6 months, 1,796 flights |
| Dec | 36.0% | 28.3–38.0% | 6 months, 1,872 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: LGW ↔ OPORTO-PORTUGAL, 25.5% of 619 movements. Highest disruption: MAN ↔ LISBON, 43.5% of 483 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 |
|---|---|---|---|
| Gatwick ↔ Oporto (Portugal) | 25.5% of 619 movements | 0.5% of 619 movements | descriptive comparison |
| Gatwick ↔ Lisbon | 28.7% of 588 movements | 0.9% of 588 movements | descriptive comparison |
| Heathrow ↔ Lisbon | 38.2% of 2,152 movements | 0.4% of 2,152 movements | descriptive comparison |
| Manchester ↔ Lisbon | 43.5% of 483 movements | 0.8% of 483 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?
3 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 |
|---|---|---|
| Gatwick | 27.1% of 1,207 movements | descriptive comparison |
| Heathrow | 38.2% of 2,152 movements | descriptive comparison |
| Manchester | 43.5% of 483 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
35.4% of 3,845 movements arrivals were disrupted, against 40.1% of 3,842 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 3,845 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
Air Portugal appears from Jan 2018 to Jun 2026 with 29,784 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 21.
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?
35.4% of 3,845 movements over July 2025 to June 2026.
How often are they cancelled?
0.5% of 3,845 movements at short notice.
How late is late?
22.4–46.5 minutes; delayed denominator 1,340–2,607
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.