How often are these flights late or cancelled?
Singapore
In the twelve months from July 2025 to June 2026, 18.9% of 2,462 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 81.1% of 2,462 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
18.9% of 2,462 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 |
|---|---|---|---|
| 18.9% of 2,462 movements | 0.2% of 2,462 movements | 22.3–55.8 minutes; delayed denominator 462–1,047 | 0.4% of 2,462 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?
0.4% of 2,462 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 0.2% of 2,462 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 18.8% of 2,462 movements | 5.3 |
| More than 30 minutes | 8.5% of 2,462 movements | 11.7 |
| More than 60 minutes | 2.4% of 2,462 movements | 41.7 |
| More than 120 minutes | 0.7% of 2,462 movements | 144.8 |
| More than 180 minutes | 0.4% of 2,462 movements | 273.6 |
| More than 360 minutes | 0.1% of 2,462 movements | 820.7 |
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.
Slightly late or occasionally a disaster?
0.7% of 2,462 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: Jan 2021, no events in 57 movements. Worst month: Oct 2021, 86.2% of 116 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 | 23.6% of 195 movements |
| Feb 2018 | 14.8% of 176 movements |
| Mar 2018 | 26.6% of 199 movements |
| Apr 2018 | 34.0% of 188 movements |
| May 2018 | 16.4% of 195 movements |
| Jun 2018 | 18.4% of 190 movements |
| Jul 2018 | 14.4% of 195 movements |
| Aug 2018 | 13.4% of 194 movements |
| Sep 2018 | 23.3% of 189 movements |
| Oct 2018 | 30.8% of 195 movements |
| Nov 2018 | 12.2% of 188 movements |
| Dec 2018 | 21.9% of 192 movements |
| Jan 2019 | 26.6% of 184 movements |
| Feb 2019 | 25.3% of 158 movements |
| Mar 2019 | 44.4% of 178 movements |
| Apr 2019 | 65.5% of 171 movements |
| May 2019 | 39.5% of 177 movements |
| Jun 2019 | 21.5% of 172 movements |
| Jul 2019 | 25.4% of 177 movements |
| Aug 2019 | 23.7% of 177 movements |
| Sep 2019 | 25.9% of 170 movements |
| Oct 2019 | 24.9% of 177 movements |
| Nov 2019 | 2.3% of 172 movements |
| Dec 2019 | 14.5% of 173 movements |
| Jan 2020 | 33.1% of 172 movements |
| Feb 2020 | 36.4% of 165 movements |
| Mar 2020 | 9.9% of 162 movements |
| Apr 2020 | suppressed: fewer than twenty movements |
| May 2020 | suppressed: fewer than twenty movements |
| Jun 2020 | 11.1% of 27 movements — small sample, not ranked |
| Jul 2020 | 12.5% of 32 movements — small sample, not ranked |
| Aug 2020 | 12.5% of 48 movements — small sample, not ranked |
| Sep 2020 | 3.4% of 59 movements |
| Oct 2020 | 14.5% of 69 movements |
| Nov 2020 | 3.4% of 58 movements |
| Dec 2020 | 4.0% of 75 movements |
| Jan 2021 | no events in 57 movements |
| Feb 2021 | 5.6% of 54 movements |
| Mar 2021 | 9.2% of 65 movements |
| Apr 2021 | 24.2% of 62 movements |
| May 2021 | 8.0% of 75 movements |
| Jun 2021 | 2.2% of 93 movements |
| Jul 2021 | 1.9% of 105 movements |
| Aug 2021 | 40.9% of 110 movements |
| Sep 2021 | 79.6% of 108 movements |
| Oct 2021 | 86.2% of 116 movements |
| Nov 2021 | 43.3% of 120 movements |
| Dec 2021 | 15.9% of 132 movements |
| Jan 2022 | 16.9% of 124 movements |
| Feb 2022 | 31.2% of 112 movements |
| Mar 2022 | 74.0% of 123 movements |
| Apr 2022 | 69.9% of 103 movements |
| May 2022 | 61.3% of 106 movements |
| Jun 2022 | 46.7% of 137 movements |
| Jul 2022 | 29.2% of 144 movements |
| Aug 2022 | 19.7% of 142 movements |
| Sep 2022 | 51.8% of 137 movements |
| Oct 2022 | 71.6% of 141 movements |
| Nov 2022 | 17.4% of 161 movements |
| Dec 2022 | 22.4% of 174 movements |
| Jan 2023 | 32.0% of 175 movements |
| Feb 2023 | 34.6% of 156 movements |
| Mar 2023 | 36.2% of 174 movements |
| Apr 2023 | 77.2% of 171 movements |
| May 2023 | 52.8% of 178 movements |
| Jun 2023 | 34.9% of 172 movements |
| Jul 2023 | 32.8% of 177 movements |
| Aug 2023 | 9.0% of 178 movements |
| Sep 2023 | 28.7% of 171 movements |
| Oct 2023 | 75.4% of 179 movements |
| Nov 2023 | 35.1% of 171 movements |
| Dec 2023 | 45.1% of 182 movements |
| Jan 2024 | 54.5% of 191 movements |
| Feb 2024 | 44.9% of 176 movements |
| Mar 2024 | 21.8% of 193 movements |
| Apr 2024 | 72.4% of 174 movements |
| May 2024 | 79.7% of 177 movements |
| Jun 2024 | 65.0% of 180 movements |
| Jul 2024 | 16.1% of 199 movements |
| Aug 2024 | 39.2% of 199 movements |
| Sep 2024 | 44.0% of 193 movements |
| Oct 2024 | 60.4% of 197 movements |
| Nov 2024 | 32.0% of 181 movements |
| Dec 2024 | 31.0% of 197 movements |
| Jan 2025 | 28.6% of 199 movements |
| Feb 2025 | 36.5% of 181 movements |
| Mar 2025 | 22.5% of 200 movements |
| Apr 2025 | 47.0% of 202 movements |
| May 2025 | 31.2% of 208 movements |
| Jun 2025 | 48.0% of 202 movements |
| Jul 2025 | 23.0% of 209 movements |
| Aug 2025 | 5.7% of 210 movements |
| Sep 2025 | 21.8% of 202 movements |
| Oct 2025 | 33.7% of 208 movements |
| Nov 2025 | 5.4% of 202 movements |
| Dec 2025 | 14.6% of 205 movements |
| Jan 2026 | 20.6% of 194 movements |
| Feb 2026 | 19.6% of 163 movements |
| Mar 2026 | 9.6% of 218 movements |
| Apr 2026 | 34.1% of 214 movements |
| May 2026 | 18.9% of 222 movements |
| Jun 2026 | 20.0% of 215 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 | 11.1% of 27 movements — small sample, not ranked | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Pandemic regime · Jun 2020 | Departures | 10.0% of 30 movements — small sample, not ranked | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 29.2% of 144 movements | 47.3% across 1,396 flights | returned the next month |
| Summer 2022 breakdown · Jul 2022 | Departures | 49.0% of 143 movements | 33.9% across 1,395 flights | returned after 4 months |
| NATS system failure · Aug 2023 | Arrivals | 9.0% of 178 movements | 40.3% across 1,958 flights | returned the next month |
| NATS system failure · Aug 2023 | Departures | 33.3% of 177 movements | 33.9% across 1,961 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Arrivals | 22.5% of 200 movements | 43.9% across 2,270 flights | returned after 2 months |
| Heathrow fire closure · Mar 2025 | Departures | 18.9% of 201 movements | 33.8% across 2,266 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, 65.5% across 7 months. Lowest median: Nov, 14.8% 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 | 26.6% | 16.9–54.5% | 7 months, 1,262 flights |
| Feb | 31.2% | 14.8–44.9% | 7 months, 1,122 flights |
| Mar | 26.6% | 9.6–74.0% | 7 months, 1,285 flights |
| Apr | 65.5% | 34.0–77.2% | 7 months, 1,223 flights |
| May | 39.5% | 16.4–79.7% | 7 months, 1,263 flights |
| Jun | 34.9% | 18.4–65.0% | 7 months, 1,268 flights |
| Jul | 24.2% | 14.4–32.8% | 6 months, 1,101 flights |
| Aug | 16.6% | 5.7–39.2% | 6 months, 1,100 flights |
| Sep | 27.3% | 21.8–51.8% | 6 months, 1,062 flights |
| Oct | 47.0% | 24.9–75.4% | 6 months, 1,097 flights |
| Nov | 14.8% | 2.3–35.1% | 6 months, 1,075 flights |
| Dec | 22.1% | 14.5–45.1% | 6 months, 1,123 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 ↔ SINGAPORE, 17.8% of 1,795 movements. Highest disruption: LGW ↔ SINGAPORE, 24.4% of 405 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 ↔ Singapore | 17.8% of 1,795 movements | 0.2% of 1,795 movements | descriptive comparison |
| MAN ↔ SINGAPORE | 18.4% of 261 movements | no events in 261 movements | descriptive comparison |
| LGW ↔ SINGAPORE | 24.4% of 405 movements | no events in 405 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 | 24.4% of 405 movements | descriptive comparison |
| Heathrow | 17.8% of 1,795 movements | descriptive comparison |
| Manchester | 18.4% of 261 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
18.9% of 2,462 movements arrivals were disrupted, against 21.1% of 2,460 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
0.4% of 2,462 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
Singapore appears from Jan 2018 to Jun 2026 with 15,973 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 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.
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?
18.9% of 2,462 movements over July 2025 to June 2026.
How often are they cancelled?
0.2% of 2,462 movements at short notice.
How late is late?
22.3–55.8 minutes; delayed denominator 462–1,047
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.