How often are these flights late or cancelled?
Finland
In the twelve months from July 2025 to June 2026, 32.6% of 4,456 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 67.4% of 4,456 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
32.6% of 4,456 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 |
|---|---|---|---|
| 32.6% of 4,456 movements | 1.6% of 4,456 movements | 29.0–58.2 minutes; delayed denominator 1,384–2,630 | 0.7% of 4,456 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?
0.7% of 4,456 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 1.6% of 4,456 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 31.1% of 4,456 movements | 3.2 |
| More than 30 minutes | 17.3% of 4,456 movements | 5.8 |
| More than 60 minutes | 6.4% of 4,456 movements | 15.5 |
| More than 120 minutes | 1.8% of 4,456 movements | 55.7 |
| More than 180 minutes | 0.7% of 4,456 movements | 148.5 |
| More than 360 minutes | 0.2% of 4,456 movements | 636.6 |
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?
1.8% of 4,456 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: May 2020, no events in 62 movements. Worst month: Dec 2023, 65.1% of 739 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 | 38.4% of 404 movements |
| Feb 2018 | 21.2% of 358 movements |
| Mar 2018 | 17.5% of 371 movements |
| Apr 2018 | 34.3% of 347 movements |
| May 2018 | 11.5% of 365 movements |
| Jun 2018 | 20.4% of 358 movements |
| Jul 2018 | 19.8% of 378 movements |
| Aug 2018 | 24.6% of 370 movements |
| Sep 2018 | 31.6% of 354 movements |
| Oct 2018 | 28.3% of 367 movements |
| Nov 2018 | 16.8% of 369 movements |
| Dec 2018 | 48.5% of 812 movements |
| Jan 2019 | 25.8% of 419 movements |
| Feb 2019 | 26.6% of 380 movements |
| Mar 2019 | 28.0% of 393 movements |
| Apr 2019 | 17.0% of 342 movements |
| May 2019 | 16.0% of 368 movements |
| Jun 2019 | 41.7% of 357 movements |
| Jul 2019 | 19.7% of 391 movements |
| Aug 2019 | 30.4% of 382 movements |
| Sep 2019 | 25.5% of 364 movements |
| Oct 2019 | 32.5% of 363 movements |
| Nov 2019 | 12.7% of 378 movements |
| Dec 2019 | 42.5% of 750 movements |
| Jan 2020 | 26.8% of 433 movements |
| Feb 2020 | 41.0% of 400 movements |
| Mar 2020 | 12.8% of 265 movements |
| Apr 2020 | 3.3% of 60 movements |
| May 2020 | no events in 62 movements |
| Jun 2020 | 3.3% of 60 movements |
| Jul 2020 | 1.4% of 71 movements |
| Aug 2020 | 1.0% of 98 movements |
| Sep 2020 | 8.2% of 73 movements |
| Oct 2020 | 2.5% of 79 movements |
| Nov 2020 | 6.8% of 74 movements |
| Dec 2020 | 13.8% of 58 movements |
| Jan 2021 | 23.3% of 43 movements — small sample, not ranked |
| Feb 2021 | 39.5% of 43 movements — small sample, not ranked |
| Mar 2021 | 4.5% of 66 movements |
| Apr 2021 | 8.7% of 69 movements |
| May 2021 | 5.0% of 80 movements |
| Jun 2021 | 9.1% of 77 movements |
| Jul 2021 | 5.6% of 90 movements |
| Aug 2021 | 8.7% of 92 movements |
| Sep 2021 | 14.1% of 99 movements |
| Oct 2021 | 23.2% of 138 movements |
| Nov 2021 | 25.7% of 187 movements |
| Dec 2021 | 63.2% of 574 movements |
| Jan 2022 | 45.5% of 213 movements |
| Feb 2022 | 48.6% of 181 movements |
| Mar 2022 | 20.4% of 201 movements |
| Apr 2022 | 21.2% of 245 movements |
| May 2022 | 14.6% of 253 movements |
| Jun 2022 | 29.0% of 241 movements |
| Jul 2022 | 23.9% of 251 movements |
| Aug 2022 | 20.8% of 250 movements |
| Sep 2022 | 22.6% of 239 movements |
| Oct 2022 | 27.2% of 257 movements |
| Nov 2022 | 21.1% of 266 movements |
| Dec 2022 | 57.7% of 671 movements |
| Jan 2023 | 38.6% of 316 movements |
| Feb 2023 | 32.7% of 266 movements |
| Mar 2023 | 23.7% of 266 movements |
| Apr 2023 | 12.1% of 231 movements |
| May 2023 | 9.3% of 236 movements |
| Jun 2023 | 18.4% of 234 movements |
| Jul 2023 | 22.6% of 243 movements |
| Aug 2023 | 20.6% of 243 movements |
| Sep 2023 | 36.1% of 230 movements |
| Oct 2023 | 30.8% of 240 movements |
| Nov 2023 | 29.5% of 298 movements |
| Dec 2023 | 65.1% of 739 movements |
| Jan 2024 | 49.2% of 323 movements |
| Feb 2024 | 47.4% of 291 movements |
| Mar 2024 | 22.8% of 276 movements |
| Apr 2024 | 34.3% of 254 movements |
| May 2024 | 22.5% of 258 movements |
| Jun 2024 | 28.1% of 242 movements |
| Jul 2024 | 32.0% of 256 movements |
| Aug 2024 | 36.0% of 261 movements |
| Sep 2024 | 32.7% of 248 movements |
| Oct 2024 | 30.8% of 263 movements |
| Nov 2024 | 34.7% of 386 movements |
| Dec 2024 | 62.0% of 857 movements |
| Jan 2025 | 50.2% of 444 movements |
| Feb 2025 | 29.6% of 406 movements |
| Mar 2025 | 20.9% of 368 movements |
| Apr 2025 | 16.1% of 311 movements |
| May 2025 | 20.1% of 319 movements |
| Jun 2025 | 25.2% of 309 movements |
| Jul 2025 | 20.6% of 320 movements |
| Aug 2025 | 21.4% of 322 movements |
| Sep 2025 | 28.3% of 307 movements |
| Oct 2025 | 21.0% of 310 movements |
| Nov 2025 | 28.1% of 363 movements |
| Dec 2025 | 58.2% of 893 movements |
| Jan 2026 | 44.3% of 438 movements |
| Feb 2026 | 40.3% of 387 movements |
| Mar 2026 | 13.4% of 357 movements |
| Apr 2026 | 13.1% of 252 movements |
| May 2026 | 15.9% of 258 movements |
| Jun 2026 | 29.3% of 249 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 60 movements | 24.1% across 4,205 flights | returned the next month |
| Pandemic regime · Jun 2020 | Departures | 5.0% of 60 movements | 22.1% across 4,197 flights | returned the next month |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 23.9% of 251 movements | 26.7% across 2,514 flights | returned the next month |
| Summer 2022 breakdown · Jul 2022 | Departures | 45.2% of 250 movements | 22.1% across 2,517 flights | returned after 4 months |
| NATS system failure · Aug 2023 | Arrivals | 20.6% of 243 movements | 25.6% across 3,475 flights | returned after 7 months |
| NATS system failure · Aug 2023 | Departures | 34.7% of 242 movements | 28.8% across 3,475 flights | returned after 2 months |
| Heathrow fire closure · Mar 2025 | Arrivals | 20.9% of 368 movements | 34.6% across 4,151 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Departures | 22.1% of 366 movements | 31.9% across 4,145 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: Dec, 58.0% across 6 months. Lowest median: May, 15.9% 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 | 44.3% | 25.8–50.2% | 7 months, 2,557 flights |
| Feb | 32.7% | 21.2–48.6% | 7 months, 2,269 flights |
| Mar | 20.9% | 13.4–28.0% | 7 months, 2,232 flights |
| Apr | 17.0% | 12.1–34.3% | 7 months, 1,982 flights |
| May | 15.9% | 9.3–22.5% | 7 months, 2,057 flights |
| Jun | 28.1% | 18.4–41.7% | 7 months, 1,990 flights |
| Jul | 21.6% | 19.7–32.0% | 6 months, 1,839 flights |
| Aug | 23.0% | 20.6–36.0% | 6 months, 1,828 flights |
| Sep | 30.0% | 22.6–36.1% | 6 months, 1,742 flights |
| Oct | 29.6% | 21.0–32.5% | 6 months, 1,800 flights |
| Nov | 24.6% | 12.7–34.7% | 6 months, 2,060 flights |
| Dec | 58.0% | 42.5–65.1% | 6 months, 4,722 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 ↔ HELSINKI, 20.2% of 400 movements. Highest disruption: MAN ↔ KITTILA, 80.9% of 68 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 ↔ HELSINKI | 20.2% of 400 movements | 1.0% of 400 movements | descriptive comparison |
| EDI ↔ HELSINKI | 20.5% of 351 movements | 1.4% of 351 movements | descriptive comparison |
| Manchester ↔ Helsinki | 22.8% of 626 movements | 1.0% of 626 movements | descriptive comparison |
| Heathrow ↔ Helsinki | 24.7% of 1,693 movements | 2.5% of 1,693 movements | descriptive comparison |
| LGW ↔ HELSINKI | 30.4% of 224 movements | no events in 224 movements | descriptive comparison |
| STN ↔ ROVANIEMI | 32.7% of 162 movements | 0.6% of 162 movements | descriptive comparison |
| LGW ↔ ROVANIEMI | 45.2% of 124 movements | 1.6% of 124 movements | descriptive comparison |
| LGW ↔ IVALO | 46.4% of 56 movements | 1.8% of 56 movements | descriptive comparison |
| LGW ↔ KITTILA | 55.2% of 87 movements | 3.4% of 87 movements | descriptive comparison |
| BHX ↔ ROVANIEMI | 65.6% of 61 movements | no events in 61 movements | descriptive comparison |
| BRS ↔ ROVANIEMI | 68.2% of 66 movements | 4.5% of 66 movements | descriptive comparison |
| MAN ↔ ROVANIEMI | 70.5% of 105 movements | 1.0% of 105 movements | descriptive comparison |
| MAN ↔ KITTILA | 80.9% of 68 movements | no events in 68 movements | descriptive comparison |
| BRS ↔ KITTILA | 65.0% of 20 movements — small sample, not ranked | no events in 20 movements — small sample, not ranked | small sample; not ranked |
| LGW ↔ ENONTEKIO | 63.6% of 22 movements — small sample, not ranked | no events in 22 movements — small sample, not ranked | small sample; not ranked |
| LGW ↔ KUUSAMO | 45.8% of 24 movements — small sample, not ranked | no events in 24 movements — small sample, not ranked | small sample; not ranked |
| LPL ↔ ROVANIEMI | 56.8% of 44 movements — small sample, not ranked | no events in 44 movements — small sample, not ranked | small sample; not ranked |
| LTN ↔ ROVANIEMI | 50.0% of 34 movements — small sample, not ranked | 2.9% of 34 movements — small sample, not ranked | small sample; not ranked |
| MAN ↔ IVALO | 86.4% of 22 movements — small sample, not ranked | no events in 22 movements — small sample, not ranked | small sample; not ranked |
| MAN ↔ KUUSAMO | 87.0% of 23 movements — small sample, not ranked | no events in 23 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?
9 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 | 68.1% of 113 movements | descriptive comparison |
| Bristol | 68.3% of 101 movements | descriptive comparison |
| Edinburgh | 23.4% of 372 movements | descriptive comparison |
| Gatwick | 41.5% of 537 movements | descriptive comparison |
| Heathrow | 24.9% of 1,702 movements | descriptive comparison |
| Liverpool (John Lennon) | 60.8% of 51 movements | descriptive comparison |
| Luton | 51.4% of 37 movements — small sample, not ranked | small sample; not ranked |
| Manchester | 37.2% of 853 movements | descriptive comparison |
| Stansted | 24.3% of 580 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
32.6% of 4,456 movements arrivals were disrupted, against 27.5% of 4,449 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
0.7% of 4,456 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
Finland appears from Jan 2018 to Jun 2026 with 30,369 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 108.
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?
32.6% of 4,456 movements over July 2025 to June 2026.
How often are they cancelled?
1.6% of 4,456 movements at short notice.
How late is late?
29.0–58.2 minutes; delayed denominator 1,384–2,630
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.