How often are these flights late or cancelled?
Romania
In the twelve months from July 2025 to June 2026, 21.5% of 10,220 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 78.5% of 10,220 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
21.5% of 10,220 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 |
|---|---|---|---|
| 21.5% of 10,220 movements | 0.5% of 10,220 movements | 30.0–66.2 minutes; delayed denominator 2,148–4,411 | 0.7% of 10,220 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 10,220 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 0.5% of 10,220 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 21.0% of 10,220 movements | 4.8 |
| More than 30 minutes | 12.8% of 10,220 movements | 7.8 |
| More than 60 minutes | 6.3% of 10,220 movements | 16.0 |
| More than 120 minutes | 2.1% of 10,220 movements | 48.7 |
| More than 180 minutes | 0.7% of 10,220 movements | 140.0 |
| More than 360 minutes | 0.1% of 10,220 movements | 1,135.6 |
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?
2.1% of 10,220 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, 2.7% of 557 movements. Worst month: Jun 2020, 88.9% of 117 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 | 35.5% of 691 movements |
| Feb 2018 | 19.0% of 590 movements |
| Mar 2018 | 28.4% of 696 movements |
| Apr 2018 | 19.4% of 758 movements |
| May 2018 | 20.1% of 773 movements |
| Jun 2018 | 28.4% of 746 movements |
| Jul 2018 | 33.6% of 812 movements |
| Aug 2018 | 26.0% of 813 movements |
| Sep 2018 | 23.7% of 776 movements |
| Oct 2018 | 18.6% of 778 movements |
| Nov 2018 | 16.3% of 716 movements |
| Dec 2018 | 32.1% of 747 movements |
| Jan 2019 | 23.9% of 758 movements |
| Feb 2019 | 15.2% of 658 movements |
| Mar 2019 | 22.0% of 717 movements |
| Apr 2019 | 15.4% of 836 movements |
| May 2019 | 23.1% of 878 movements |
| Jun 2019 | 38.6% of 869 movements |
| Jul 2019 | 42.4% of 909 movements |
| Aug 2019 | 41.2% of 950 movements |
| Sep 2019 | 35.8% of 909 movements |
| Oct 2019 | 27.8% of 884 movements |
| Nov 2019 | 12.1% of 758 movements |
| Dec 2019 | 20.8% of 869 movements |
| Jan 2020 | 17.7% of 823 movements |
| Feb 2020 | 39.9% of 740 movements |
| Mar 2020 | 13.6% of 674 movements |
| Apr 2020 | 52.8% of 106 movements |
| May 2020 | 88.9% of 126 movements |
| Jun 2020 | 88.9% of 117 movements |
| Jul 2020 | 17.7% of 486 movements |
| Aug 2020 | 8.1% of 628 movements |
| Sep 2020 | 2.7% of 557 movements |
| Oct 2020 | 7.8% of 588 movements |
| Nov 2020 | 8.7% of 195 movements |
| Dec 2020 | 41.7% of 489 movements |
| Jan 2021 | 36.3% of 377 movements |
| Feb 2021 | 19.5% of 226 movements |
| Mar 2021 | 13.8% of 188 movements |
| Apr 2021 | 11.0% of 281 movements |
| May 2021 | 9.0% of 399 movements |
| Jun 2021 | 6.2% of 513 movements |
| Jul 2021 | 17.5% of 616 movements |
| Aug 2021 | 22.5% of 796 movements |
| Sep 2021 | 18.2% of 787 movements |
| Oct 2021 | 14.7% of 712 movements |
| Nov 2021 | 12.3% of 489 movements |
| Dec 2021 | 28.7% of 701 movements |
| Jan 2022 | 21.3% of 536 movements |
| Feb 2022 | 27.1% of 421 movements |
| Mar 2022 | 19.1% of 655 movements |
| Apr 2022 | 34.8% of 935 movements |
| May 2022 | 38.0% of 988 movements |
| Jun 2022 | 53.3% of 952 movements |
| Jul 2022 | 54.1% of 994 movements |
| Aug 2022 | 44.5% of 980 movements |
| Sep 2022 | 56.3% of 894 movements |
| Oct 2022 | 46.5% of 921 movements |
| Nov 2022 | 18.0% of 761 movements |
| Dec 2022 | 39.1% of 874 movements |
| Jan 2023 | 29.4% of 839 movements |
| Feb 2023 | 22.1% of 701 movements |
| Mar 2023 | 20.2% of 826 movements |
| Apr 2023 | 27.8% of 855 movements |
| May 2023 | 20.9% of 757 movements |
| Jun 2023 | 35.8% of 855 movements |
| Jul 2023 | 52.0% of 915 movements |
| Aug 2023 | 38.0% of 915 movements |
| Sep 2023 | 28.0% of 860 movements |
| Oct 2023 | 29.7% of 849 movements |
| Nov 2023 | 24.5% of 797 movements |
| Dec 2023 | 31.7% of 899 movements |
| Jan 2024 | 28.4% of 879 movements |
| Feb 2024 | 16.1% of 774 movements |
| Mar 2024 | 15.0% of 835 movements |
| Apr 2024 | 20.5% of 829 movements |
| May 2024 | 24.0% of 875 movements |
| Jun 2024 | 46.3% of 853 movements |
| Jul 2024 | 56.8% of 869 movements |
| Aug 2024 | 43.6% of 884 movements |
| Sep 2024 | 40.1% of 843 movements |
| Oct 2024 | 28.1% of 885 movements |
| Nov 2024 | 15.4% of 792 movements |
| Dec 2024 | 18.2% of 858 movements |
| Jan 2025 | 22.9% of 827 movements |
| Feb 2025 | 19.3% of 761 movements |
| Mar 2025 | 9.8% of 825 movements |
| Apr 2025 | 14.6% of 840 movements |
| May 2025 | 16.8% of 864 movements |
| Jun 2025 | 23.6% of 842 movements |
| Jul 2025 | 28.5% of 882 movements |
| Aug 2025 | 29.2% of 890 movements |
| Sep 2025 | 36.2% of 847 movements |
| Oct 2025 | 26.4% of 880 movements |
| Nov 2025 | 12.3% of 822 movements |
| Dec 2025 | 17.4% of 924 movements |
| Jan 2026 | 28.0% of 908 movements |
| Feb 2026 | 23.6% of 817 movements |
| Mar 2026 | 8.4% of 855 movements |
| Apr 2026 | 11.4% of 825 movements |
| May 2026 | 10.7% of 805 movements |
| Jun 2026 | 23.9% of 765 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 | 88.9% of 117 movements | 36.0% across 8,617 flights | returned the next month |
| Pandemic regime · Jun 2020 | Departures | 91.6% of 119 movements | 45.4% across 8,600 flights | returned the next month |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 54.1% of 994 movements | 25.6% across 8,588 flights | returned after 4 months |
| Summer 2022 breakdown · Jul 2022 | Departures | 78.2% of 1,001 movements | 34.6% across 8,583 flights | returned after 4 months |
| NATS system failure · Aug 2023 | Arrivals | 38.0% of 915 movements | 34.4% across 10,178 flights | returned the next month |
| NATS system failure · Aug 2023 | Departures | 52.2% of 921 movements | 49.2% across 10,182 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Arrivals | 9.8% of 825 movements | 29.2% across 10,111 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Departures | 16.8% of 825 movements | 35.6% across 10,140 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: Jul, 47.2% across 6 months. Lowest median: Nov, 15.9% 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 | 28.0% | 21.3–35.5% | 7 months, 5,438 flights |
| Feb | 19.3% | 15.2–27.1% | 7 months, 4,722 flights |
| Mar | 19.1% | 8.4–28.4% | 7 months, 5,409 flights |
| Apr | 19.4% | 11.4–34.8% | 7 months, 5,878 flights |
| May | 20.9% | 10.7–38.0% | 7 months, 5,940 flights |
| Jun | 35.8% | 23.6–53.3% | 7 months, 5,882 flights |
| Jul | 47.2% | 28.5–56.8% | 6 months, 5,381 flights |
| Aug | 39.6% | 26.0–44.5% | 6 months, 5,432 flights |
| Sep | 36.0% | 23.7–56.3% | 6 months, 5,129 flights |
| Oct | 28.0% | 18.6–46.5% | 6 months, 5,197 flights |
| Nov | 15.9% | 12.1–24.5% | 6 months, 4,646 flights |
| Dec | 26.3% | 17.4–39.1% | 6 months, 5,171 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: LTN ↔ BUCHAREST-BANEASA, 8.3% of 109 movements. Highest disruption: EDI ↔ BUCHAREST-OTOPENI, 45.5% of 143 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 |
|---|---|---|---|
| LTN ↔ BUCHAREST-BANEASA | 8.3% of 109 movements | no events in 109 movements | descriptive comparison |
| BHX ↔ SUCEAVA | 9.1% of 77 movements | 1.3% of 77 movements | descriptive comparison |
| Luton ↔ Iasi | 9.4% of 650 movements | no events in 650 movements | descriptive comparison |
| BHX ↔ SIBIU | 9.4% of 53 movements | no events in 53 movements | descriptive comparison |
| LTN ↔ BRASOV-GHIMBAV | 10.1% of 287 movements | 0.3% of 287 movements | descriptive comparison |
| LPL ↔ IASI | 10.9% of 147 movements | no events in 147 movements | descriptive comparison |
| LTN ↔ TIMISOARA | 13.8% of 349 movements | no events in 349 movements | descriptive comparison |
| LTN ↔ CRAIOVA | 14.4% of 436 movements | 0.5% of 436 movements | descriptive comparison |
| Luton ↔ Cluj Napoca | 14.8% of 610 movements | 0.2% of 610 movements | descriptive comparison |
| Luton ↔ Suceava | 15.2% of 611 movements | 1.1% of 611 movements | descriptive comparison |
| STN ↔ ORADEA | 15.7% of 83 movements | no events in 83 movements | descriptive comparison |
| LPL ↔ BUCHAREST-OTOPENI | 16.8% of 143 movements | no events in 143 movements | descriptive comparison |
| LTN ↔ SATU-MARE | 17.5% of 194 movements | no events in 194 movements | descriptive comparison |
| LBA ↔ CLUJ-NAPOCA | 19.0% of 105 movements | 1.0% of 105 movements | descriptive comparison |
| LTN ↔ SIBIU | 20.0% of 290 movements | 0.7% of 290 movements | descriptive comparison |
| BHX ↔ CRAIOVA | 21.0% of 143 movements | 0.7% of 143 movements | descriptive comparison |
| Luton ↔ Bacau | 22.1% of 578 movements | 0.5% of 578 movements | descriptive comparison |
| LTN ↔ CONSTANTA | 22.3% of 179 movements | 1.7% of 179 movements | descriptive comparison |
| Heathrow ↔ Bucharest (Otopeni) | 23.3% of 765 movements | 0.5% of 765 movements | descriptive comparison |
| Luton ↔ Bucharest (Otopeni) | 24.1% of 1,421 movements | 0.2% of 1,421 movements | descriptive comparison |
| LBA ↔ BUCHAREST-OTOPENI | 25.7% of 296 movements | 0.7% of 296 movements | descriptive comparison |
| Stansted ↔ Bucharest (Otopeni) | 27.1% of 1,328 movements | 0.9% of 1,328 movements | descriptive comparison |
| Birmingham ↔ Bucharest (Otopeni) | 31.2% of 574 movements | no events in 574 movements | descriptive comparison |
| BRS ↔ BUCHAREST-OTOPENI | 34.6% of 205 movements | 0.5% of 205 movements | descriptive comparison |
| STN ↔ CLUJ-NAPOCA | 36.1% of 169 movements | no events in 169 movements | descriptive comparison |
| MAN ↔ BUCHAREST-OTOPENI | 36.4% of 209 movements | 0.5% of 209 movements | descriptive comparison |
| EDI ↔ BUCHAREST-OTOPENI | 45.5% of 143 movements | 0.7% of 143 movements | descriptive comparison |
| LGW ↔ BUCHAREST-OTOPENI | 52.4% of 21 movements — small sample, not ranked | no events in 21 movements — small sample, not ranked | small sample; not ranked |
| LTN ↔ TIRGU-MURES | 7.5% of 40 movements — small sample, not ranked | no events in 40 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?
10 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 | 26.1% of 847 movements | descriptive comparison |
| Bristol | 34.6% of 205 movements | descriptive comparison |
| Edinburgh | 45.5% of 143 movements | descriptive comparison |
| Leeds Bradford | 23.9% of 401 movements | descriptive comparison |
| Gatwick | 52.4% of 21 movements — small sample, not ranked | small sample; not ranked |
| Heathrow | 23.3% of 765 movements | descriptive comparison |
| Liverpool (John Lennon) | 13.8% of 290 movements | descriptive comparison |
| Luton | 17.3% of 5,754 movements | descriptive comparison |
| Manchester | 36.4% of 209 movements | descriptive comparison |
| Stansted | 27.5% of 1,580 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
21.5% of 10,220 movements arrivals were disrupted, against 24.8% of 10,222 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 10,220 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
Romania appears from Jan 2018 to Jun 2026 with 75,839 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 92.
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?
21.5% of 10,220 movements over July 2025 to June 2026.
How often are they cancelled?
0.5% of 10,220 movements at short notice.
How late is late?
30.0–66.2 minutes; delayed denominator 2,148–4,411
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.