How often are these flights late or cancelled?
Hong Kong
In the twelve months from July 2025 to June 2026, 31.0% of 2,553 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 69.0% of 2,553 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
31.0% of 2,553 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 |
|---|---|---|---|
| 31.0% of 2,553 movements | 0.7% of 2,553 movements | 32.2–61.0 minutes; delayed denominator 774–1,387 | 0.9% of 2,553 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?
0.9% of 2,553 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 0.7% of 2,553 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 30.3% of 2,553 movements | 3.3 |
| More than 30 minutes | 15.9% of 2,553 movements | 6.3 |
| More than 60 minutes | 5.7% of 2,553 movements | 17.6 |
| More than 120 minutes | 1.9% of 2,553 movements | 52.1 |
| More than 180 minutes | 0.9% of 2,553 movements | 111.0 |
| More than 360 minutes | 0.5% of 2,553 movements | 196.4 |
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?
1.9% of 2,553 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: Jun 2021, 1.6% of 62 movements. Worst month: Jul 2022, 67.3% of 55 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 | 26.0% of 300 movements |
| Feb 2018 | 10.7% of 270 movements |
| Mar 2018 | 32.7% of 303 movements |
| Apr 2018 | 49.8% of 287 movements |
| May 2018 | 16.1% of 285 movements |
| Jun 2018 | 19.5% of 293 movements |
| Jul 2018 | 8.4% of 310 movements |
| Aug 2018 | 17.7% of 310 movements |
| Sep 2018 | 32.7% of 300 movements |
| Oct 2018 | 21.1% of 294 movements |
| Nov 2018 | 19.7% of 284 movements |
| Dec 2018 | 21.8% of 298 movements |
| Jan 2019 | 11.5% of 295 movements |
| Feb 2019 | 19.6% of 270 movements |
| Mar 2019 | 26.4% of 295 movements |
| Apr 2019 | 42.7% of 300 movements |
| May 2019 | 20.4% of 285 movements |
| Jun 2019 | 22.3% of 291 movements |
| Jul 2019 | 10.4% of 309 movements |
| Aug 2019 | 25.8% of 310 movements |
| Sep 2019 | 16.8% of 298 movements |
| Oct 2019 | 36.4% of 291 movements |
| Nov 2019 | 19.6% of 281 movements |
| Dec 2019 | 16.7% of 294 movements |
| Jan 2020 | 20.3% of 295 movements |
| Feb 2020 | 27.2% of 243 movements |
| Mar 2020 | 14.0% of 129 movements |
| Apr 2020 | 15.2% of 33 movements — small sample, not ranked |
| May 2020 | 10.3% of 29 movements — small sample, not ranked |
| Jun 2020 | 3.0% of 33 movements — small sample, not ranked |
| Jul 2020 | 9.6% of 52 movements |
| Aug 2020 | 3.0% of 67 movements |
| Sep 2020 | 8.6% of 93 movements |
| Oct 2020 | 19.7% of 76 movements |
| Nov 2020 | 3.2% of 62 movements |
| Dec 2020 | 18.2% of 66 movements |
| Jan 2021 | 17.5% of 40 movements — small sample, not ranked |
| Feb 2021 | 3.3% of 30 movements — small sample, not ranked |
| Mar 2021 | no events in 47 movements — small sample, not ranked |
| Apr 2021 | 3.5% of 57 movements |
| May 2021 | 11.9% of 59 movements |
| Jun 2021 | 1.6% of 62 movements |
| Jul 2021 | 6.5% of 93 movements |
| Aug 2021 | 4.3% of 116 movements |
| Sep 2021 | 5.8% of 207 movements |
| Oct 2021 | 30.3% of 132 movements |
| Nov 2021 | 11.0% of 91 movements |
| Dec 2021 | 25.6% of 90 movements |
| Jan 2022 | suppressed: fewer than twenty movements |
| Feb 2022 | suppressed: fewer than twenty movements |
| Mar 2022 | suppressed: fewer than twenty movements |
| Apr 2022 | suppressed: fewer than twenty movements |
| May 2022 | 64.5% of 31 movements — small sample, not ranked |
| Jun 2022 | 53.2% of 47 movements — small sample, not ranked |
| Jul 2022 | 67.3% of 55 movements |
| Aug 2022 | 28.3% of 60 movements |
| Sep 2022 | 57.7% of 78 movements |
| Oct 2022 | 62.9% of 62 movements |
| Nov 2022 | 23.8% of 101 movements |
| Dec 2022 | 15.0% of 113 movements |
| Jan 2023 | 13.4% of 142 movements |
| Feb 2023 | 40.4% of 141 movements |
| Mar 2023 | 28.6% of 182 movements |
| Apr 2023 | 34.7% of 202 movements |
| May 2023 | 13.7% of 197 movements |
| Jun 2023 | 29.0% of 207 movements |
| Jul 2023 | 30.4% of 224 movements |
| Aug 2023 | 26.1% of 218 movements |
| Sep 2023 | 42.2% of 230 movements |
| Oct 2023 | 25.5% of 216 movements |
| Nov 2023 | 36.0% of 189 movements |
| Dec 2023 | 53.8% of 199 movements |
| Jan 2024 | 37.6% of 197 movements |
| Feb 2024 | 31.3% of 182 movements |
| Mar 2024 | 16.1% of 192 movements |
| Apr 2024 | 35.7% of 199 movements |
| May 2024 | 25.6% of 211 movements |
| Jun 2024 | 24.2% of 231 movements |
| Jul 2024 | 28.0% of 211 movements |
| Aug 2024 | 35.6% of 222 movements |
| Sep 2024 | 26.6% of 233 movements |
| Oct 2024 | 25.7% of 230 movements |
| Nov 2024 | 9.9% of 191 movements |
| Dec 2024 | 12.7% of 197 movements |
| Jan 2025 | 9.0% of 210 movements |
| Feb 2025 | 8.9% of 192 movements |
| Mar 2025 | 9.4% of 213 movements |
| Apr 2025 | 42.4% of 210 movements |
| May 2025 | 31.3% of 201 movements |
| Jun 2025 | 23.8% of 193 movements |
| Jul 2025 | 22.7% of 216 movements |
| Aug 2025 | 33.9% of 218 movements |
| Sep 2025 | 51.7% of 209 movements |
| Oct 2025 | 41.9% of 217 movements |
| Nov 2025 | 8.1% of 211 movements |
| Dec 2025 | 18.9% of 217 movements |
| Jan 2026 | 29.5% of 217 movements |
| Feb 2026 | 30.9% of 191 movements |
| Mar 2026 | 14.5% of 221 movements |
| Apr 2026 | 57.9% of 214 movements |
| May 2026 | 31.5% of 213 movements |
| Jun 2026 | 31.6% of 209 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 | 3.0% of 33 movements — small sample, not ranked | 19.6% across 2,803 flights | returned the next month |
| Pandemic regime · Jun 2020 | Departures | 38.2% of 34 movements — small sample, not ranked | 20.6% across 2,804 flights | returned after 2 months |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 67.3% of 55 movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Summer 2022 breakdown · Jul 2022 | Departures | 73.7% of 57 movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| NATS system failure · Aug 2023 | Arrivals | 26.1% of 218 movements | 31.5% across 1,709 flights | returned after 2 months |
| NATS system failure · Aug 2023 | Departures | 46.8% of 216 movements | 50.9% across 1,701 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Arrivals | 9.4% of 213 movements | 21.5% across 2,519 flights | returned after 8 months |
| Heathrow fire closure · Mar 2025 | Departures | 17.4% of 213 movements | 33.7% across 2,520 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: Apr, 42.5% across 6 months. Lowest median: Dec, 17.8% 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 | 19.7% | 9.0–37.6% | 6 months, 1,361 flights |
| Feb | 25.3% | 8.9–40.4% | 6 months, 1,246 flights |
| Mar | 21.3% | 9.4–32.7% | 6 months, 1,406 flights |
| Apr | 42.5% | 34.7–57.9% | 6 months, 1,412 flights |
| May | 25.6% | 13.7–64.5% | 7 months, 1,423 flights |
| Jun | 24.2% | 19.5–53.2% | 7 months, 1,471 flights |
| Jul | 25.3% | 8.4–67.3% | 6 months, 1,325 flights |
| Aug | 27.2% | 17.7–35.6% | 6 months, 1,338 flights |
| Sep | 37.4% | 16.8–57.7% | 6 months, 1,348 flights |
| Oct | 31.0% | 21.1–62.9% | 6 months, 1,310 flights |
| Nov | 19.6% | 8.1–36.0% | 6 months, 1,257 flights |
| Dec | 17.8% | 12.7–53.8% | 6 months, 1,318 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 ↔ HONG-KONG-CHEK-LAP-KOK, 30.5% of 2,188 movements. Highest disruption: MAN ↔ HONG-KONG-CHEK-LAP-KOK, 34.0% of 365 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 ↔ Hong Kong (Chek Lap Kok) | 30.5% of 2,188 movements | 0.7% of 2,188 movements | descriptive comparison |
| MAN ↔ HONG-KONG-CHEK-LAP-KOK | 34.0% of 365 movements | 0.8% of 365 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?
2 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 |
|---|---|---|
| Heathrow | 30.5% of 2,188 movements | descriptive comparison |
| Manchester | 34.0% of 365 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
31.0% of 2,553 movements arrivals were disrupted, against 28.9% of 2,560 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
0.9% of 2,553 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
Hong Kong appears from Jan 2018 to Jun 2026 with 18,471 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 7.
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?
31.0% of 2,553 movements over July 2025 to June 2026.
How often are they cancelled?
0.7% of 2,553 movements at short notice.
How late is late?
32.2–61.0 minutes; delayed denominator 774–1,387
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.