How often are these flights late or cancelled?
Southampton
In the twelve months from July 2025 to June 2026, 24.5% of 8,266 movements arriving into the UK were disrupted — more than fifteen minutes late or cancelled at short notice.
Put the other way round, 75.5% of 8,266 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
24.5% of 8,266 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 |
|---|---|---|---|
| 24.5% of 8,266 movements | 3.8% of 8,266 movements | 27.6–66.8 minutes; delayed denominator 1,707–3,842 | 0.8% of 8,266 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?
0.8% of 8,266 movements passed the three-hour mark.
The ladder shows how many movements crossed each threshold. Cancellations are separate: 3.8% of 8,266 movements.
| Delay | Share and sample | One event per movements |
|---|---|---|
| More than 15 minutes | 20.7% of 8,266 movements | 4.8 |
| More than 30 minutes | 12.2% of 8,266 movements | 8.2 |
| More than 60 minutes | 6.1% of 8,266 movements | 16.3 |
| More than 120 minutes | 2.1% of 8,266 movements | 47.2 |
| More than 180 minutes | 0.8% of 8,266 movements | 118.1 |
| More than 360 minutes | 0.1% of 8,266 movements | 1,180.9 |
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 8,266 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: Apr 2021, 4.5% of 66 movements. Worst month: Mar 2021, 55.4% of 56 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 | 19.6% of 1,392 movements |
| Feb 2018 | 22.6% of 1,339 movements |
| Mar 2018 | 26.8% of 1,532 movements |
| Apr 2018 | 22.9% of 1,604 movements |
| May 2018 | 20.4% of 1,628 movements |
| Jun 2018 | 28.3% of 1,577 movements |
| Jul 2018 | 26.6% of 1,607 movements |
| Aug 2018 | 24.0% of 1,644 movements |
| Sep 2018 | 21.5% of 1,488 movements |
| Oct 2018 | 19.1% of 1,469 movements |
| Nov 2018 | 17.3% of 1,285 movements |
| Dec 2018 | 24.9% of 1,281 movements |
| Jan 2019 | 20.2% of 1,216 movements |
| Feb 2019 | 29.8% of 1,191 movements |
| Mar 2019 | 25.2% of 1,361 movements |
| Apr 2019 | 21.1% of 1,344 movements |
| May 2019 | 19.1% of 1,382 movements |
| Jun 2019 | 27.0% of 1,438 movements |
| Jul 2019 | 27.3% of 1,540 movements |
| Aug 2019 | 24.3% of 1,575 movements |
| Sep 2019 | 22.0% of 1,422 movements |
| Oct 2019 | 15.3% of 1,335 movements |
| Nov 2019 | 14.5% of 1,229 movements |
| Dec 2019 | 16.3% of 1,199 movements |
| Jan 2020 | 11.2% of 1,150 movements |
| Feb 2020 | 16.5% of 1,179 movements |
| Mar 2020 | suppressed: fewer than twenty movements |
| Apr 2020 | 14.3% of 49 movements — small sample, not ranked |
| May 2020 | 7.9% of 38 movements — small sample, not ranked |
| Jun 2020 | 19.8% of 86 movements |
| Jul 2020 | 14.1% of 205 movements |
| Aug 2020 | 14.0% of 235 movements |
| Sep 2020 | 15.9% of 397 movements |
| Oct 2020 | 13.2% of 349 movements |
| Nov 2020 | 12.8% of 133 movements |
| Dec 2020 | 14.7% of 109 movements |
| Jan 2021 | 10.6% of 66 movements |
| Feb 2021 | 29.4% of 34 movements — small sample, not ranked |
| Mar 2021 | 55.4% of 56 movements |
| Apr 2021 | 4.5% of 66 movements |
| May 2021 | 12.0% of 175 movements |
| Jun 2021 | 14.7% of 292 movements |
| Jul 2021 | 20.5% of 498 movements |
| Aug 2021 | 19.0% of 589 movements |
| Sep 2021 | 20.6% of 592 movements |
| Oct 2021 | 24.3% of 679 movements |
| Nov 2021 | 15.4% of 610 movements |
| Dec 2021 | 19.2% of 558 movements |
| Jan 2022 | 17.8% of 460 movements |
| Feb 2022 | 28.5% of 487 movements |
| Mar 2022 | 16.0% of 600 movements |
| Apr 2022 | 28.7% of 648 movements |
| May 2022 | 32.6% of 714 movements |
| Jun 2022 | 40.0% of 718 movements |
| Jul 2022 | 33.8% of 789 movements |
| Aug 2022 | 32.9% of 776 movements |
| Sep 2022 | 30.4% of 757 movements |
| Oct 2022 | 27.2% of 771 movements |
| Nov 2022 | 20.3% of 728 movements |
| Dec 2022 | 41.3% of 668 movements |
| Jan 2023 | 15.6% of 620 movements |
| Feb 2023 | 13.7% of 597 movements |
| Mar 2023 | 21.6% of 759 movements |
| Apr 2023 | 22.5% of 760 movements |
| May 2023 | 25.3% of 744 movements |
| Jun 2023 | 32.3% of 765 movements |
| Jul 2023 | 34.4% of 840 movements |
| Aug 2023 | 33.1% of 864 movements |
| Sep 2023 | 33.0% of 798 movements |
| Oct 2023 | 28.5% of 790 movements |
| Nov 2023 | 19.8% of 722 movements |
| Dec 2023 | 28.5% of 687 movements |
| Jan 2024 | 21.7% of 653 movements |
| Feb 2024 | 20.3% of 664 movements |
| Mar 2024 | 18.7% of 744 movements |
| Apr 2024 | 17.4% of 753 movements |
| May 2024 | 27.7% of 751 movements |
| Jun 2024 | 25.8% of 745 movements |
| Jul 2024 | 24.2% of 753 movements |
| Aug 2024 | 22.3% of 793 movements |
| Sep 2024 | 30.6% of 777 movements |
| Oct 2024 | 20.9% of 748 movements |
| Nov 2024 | 23.1% of 648 movements |
| Dec 2024 | 30.5% of 630 movements |
| Jan 2025 | 29.2% of 590 movements |
| Feb 2025 | 18.7% of 562 movements |
| Mar 2025 | 18.2% of 653 movements |
| Apr 2025 | 22.8% of 683 movements |
| May 2025 | 23.2% of 717 movements |
| Jun 2025 | 24.5% of 709 movements |
| Jul 2025 | 26.1% of 735 movements |
| Aug 2025 | 24.6% of 744 movements |
| Sep 2025 | 27.7% of 698 movements |
| Oct 2025 | 22.6% of 695 movements |
| Nov 2025 | 23.0% of 670 movements |
| Dec 2025 | 31.8% of 658 movements |
| Jan 2026 | 27.4% of 566 movements |
| Feb 2026 | 23.2% of 561 movements |
| Mar 2026 | 24.2% of 678 movements |
| Apr 2026 | 13.4% of 725 movements |
| May 2026 | 21.7% of 756 movements |
| Jun 2026 | 29.1% of 780 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 | 19.8% of 86 movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Pandemic regime · Jun 2020 | Departures | 53.4% of 88 movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 33.8% of 789 movements | 23.6% across 7,153 flights | returned after 4 months |
| Summer 2022 breakdown · Jul 2022 | Departures | 38.2% of 796 movements | 26.9% across 7,160 flights | returned after 4 months |
| NATS system failure · Aug 2023 | Arrivals | 33.1% of 864 movements | 26.5% across 8,785 flights | returned after 3 months |
| NATS system failure · Aug 2023 | Departures | 35.3% of 859 movements | 28.9% across 8,782 flights | returned after 3 months |
| Heathrow fire closure · Mar 2025 | Arrivals | 18.2% of 653 movements | 24.1% across 8,494 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Departures | 21.2% of 656 movements | 28.4% across 8,511 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, 29.5% across 6 months. Lowest median: Nov, 20.1% 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 | 20.2% | 15.6–29.2% | 7 months, 5,497 flights |
| Feb | 22.6% | 13.7–29.8% | 7 months, 5,401 flights |
| Mar | 21.6% | 16.0–26.8% | 7 months, 6,327 flights |
| Apr | 22.5% | 13.4–28.7% | 7 months, 6,517 flights |
| May | 23.2% | 19.1–32.6% | 7 months, 6,692 flights |
| Jun | 28.3% | 24.5–40.0% | 7 months, 6,732 flights |
| Jul | 27.0% | 24.2–34.4% | 6 months, 6,264 flights |
| Aug | 24.5% | 22.3–33.1% | 6 months, 6,396 flights |
| Sep | 29.0% | 21.5–33.0% | 6 months, 5,940 flights |
| Oct | 21.7% | 15.3–28.5% | 6 months, 5,808 flights |
| Nov | 20.1% | 14.5–23.1% | 6 months, 5,282 flights |
| Dec | 29.5% | 16.3–41.3% | 6 months, 5,123 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.
Every published route from this airport
The published route directory contains 8 routes. The first table slice is below; continue through the linked directory pages for every route.
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.
| Route | Disruption | Cancellations | Sample flag |
|---|---|---|---|
| Southampton ↔ Newcastle | 13.6% of 634 movements | 1.1% of 634 movements | descriptive comparison |
| Southampton ↔ Jersey | 19.6% of 980 movements | 2.8% of 980 movements | descriptive comparison |
| Southampton ↔ Belfast City (George Best) | 20.4% of 878 movements | 2.1% of 878 movements | descriptive comparison |
| Southampton ↔ Dublin | 23.0% of 893 movements | 2.4% of 893 movements | descriptive comparison |
| Southampton ↔ Amsterdam | 23.3% of 789 movements | 3.0% of 789 movements | descriptive comparison |
| Southampton ↔ Edinburgh | 27.9% of 1,053 movements | 1.1% of 1,053 movements | descriptive comparison |
| Southampton ↔ Guernsey | 28.1% of 1,014 movements | 6.8% of 1,014 movements | descriptive comparison |
| Southampton ↔ Alderney | 37.2% of 733 movements | 15.1% of 733 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.
Airlines at this airport
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.
| Airline | Disruption | Sample flag |
|---|---|---|
| Aer Lingus | 21.7% of 1,690 movements | descriptive comparison |
| Aurigny Air Services | 28.1% of 1,152 movements | descriptive comparison |
| Blue Islands Limited | 30.9% of 728 movements | descriptive comparison |
| Easyjet Switzerland | 23.0% of 61 movements | descriptive comparison |
| Easyjet UK Ltd | 18.3% of 904 movements | descriptive comparison |
| Emerald Airlines UK Ltd | 21.2% of 80 movements | descriptive comparison |
| Isles Of Scilly Skybus | 38.6% of 290 movements | descriptive comparison |
| KLM | 100.0% of 22 movements — small sample, not ranked | small sample; not ranked |
| KLM Cityhopper | 20.7% of 686 movements | descriptive comparison |
| Loganair Ltd | 23.0% of 2,595 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
24.5% of 8,266 movements arrivals were disrupted, against 27.5% of 8,273 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.
Routes that no longer operate from here
88 routes appear in the archive but have no movements in the latest published month.
No commercial closure date or cause is implied. A route may be seasonal or restart in future data; the date is its last observed active month.
Every historical route and its last active month
| Historical route | Last active month |
|---|---|
| SOU ↔ TEESSIDE-INTERNATIONAL-AIRPORT | May 2026 |
| SOU ↔ STANSTED | Apr 2026 |
| SOU ↔ HAWARDEN | Apr 2026 |
| SOU ↔ ZURICH | Mar 2026 |
| SOU ↔ ROTTERDAM | Mar 2026 |
| SOU ↔ NORWICH | Mar 2026 |
| SOU ↔ MADRID | Mar 2026 |
| SOU ↔ LONDON-CITY | Mar 2026 |
| SOU ↔ ISLE-OF-MAN | Mar 2026 |
| SOU ↔ GENEVA | Mar 2026 |
| SOU ↔ BERLIN-BRANDENBURG | Mar 2026 |
| SOU ↔ SION | Feb 2026 |
| SOU ↔ HUMBERSIDE | Feb 2026 |
| SOU ↔ EAST-MIDLANDS-INTERNATIONAL | Feb 2026 |
| SOU ↔ LIVERPOOL-JOHN-LENNON | Jan 2026 |
| SOU ↔ PARIS-CHARLES-DE-GAULLE | Dec 2025 |
| SOU ↔ EXETER | Dec 2025 |
| SOU ↔ ABERDEEN | Dec 2025 |
| SOU ↔ LEEDS-BRADFORD | Sep 2025 |
| SOU ↔ GIRONA | Jul 2025 |
| SOU ↔ BIRMINGHAM | Jul 2025 |
| SOU ↔ ROME-FIUMICINO | Dec 2024 |
| SOU ↔ MALAGA | Sep 2024 |
| SOU ↔ LILLE | Sep 2024 |
| SOU ↔ CAEN | Sep 2024 |
| SOU ↔ BERGERAC | Sep 2024 |
| SOU ↔ JEREZ | Aug 2024 |
| SOU ↔ BRUSSELS | May 2024 |
| SOU ↔ CHAMBERY | Apr 2024 |
| SOU ↔ BRIZE-NORTON | Apr 2024 |
| SOU ↔ STORNOWAY | Mar 2024 |
| SOU ↔ NEWQUAY | Sep 2023 |
| SOU ↔ LIMOGES | Sep 2023 |
| SOU ↔ BOURNEMOUTH | Sep 2023 |
| SOU ↔ BERGAMO | Jul 2023 |
| SOU ↔ BENBECULA | May 2023 |
| SOU ↔ SALZBURG | Apr 2023 |
| SOU ↔ BIARRITZ | Jan 2023 |
| SOU ↔ IBIZA | Oct 2022 |
| SOU ↔ AVIGNON | Oct 2022 |
| SOU ↔ TOULON-HYERES | Sep 2022 |
| SOU ↔ MIKONOS | Sep 2022 |
| SOU ↔ VALENCIA | Jul 2022 |
| SOU ↔ SHANNON | Jul 2022 |
| SOU ↔ NICE | Jul 2022 |
| SOU ↔ KERRY-COUNTY | Jul 2022 |
| SOU ↔ CORK | Jul 2022 |
| SOU ↔ REUS | Jun 2022 |
| SOU ↔ FLORENCE | Jun 2022 |
| SOU ↔ ESBJERG | May 2022 |
| SOU ↔ DUNDEE | Mar 2022 |
| SOU ↔ CARDIFF-WALES | Feb 2022 |
| SOU ↔ GIBRALTAR | Oct 2021 |
| SOU ↔ DONCASTER-SHEFFIELD | Sep 2021 |
| SOU ↔ SUMBURGH | Jun 2021 |
| SOU ↔ MILAN-MALPENSA | Nov 2020 |
| SOU ↔ TOULOUSE-BLAGNAC | Oct 2020 |
| SOU ↔ MOENCHENGLADBACH | Feb 2020 |
| SOU ↔ BRISTOL | Feb 2020 |
| SOU ↔ SOUTHEND | Jan 2020 |
| SOU ↔ HEATHROW | Jan 2020 |
| SOU ↔ TENERIFE-NORTE-LOS-RODEOS | Dec 2019 |
| SOU ↔ PRESTWICK | Dec 2019 |
| SOU ↔ DUSSELDORF | Oct 2019 |
| SOU ↔ VERONA-VILLAFRANCA | Sep 2019 |
| SOU ↔ RENNES | Sep 2019 |
| SOU ↔ PERPIGNAN | Sep 2019 |
| SOU ↔ NANTES | Sep 2019 |
| SOU ↔ MAHON | Sep 2019 |
| SOU ↔ LA-ROCHELLE | Sep 2019 |
| SOU ↔ BORDEAUX | Sep 2019 |
| SOU ↔ BASTIA | Sep 2019 |
| SOU ↔ SKELLEFTEA | Aug 2019 |
| SOU ↔ BREST | Aug 2019 |
| SOU ↔ SPLIT | Jul 2019 |
| SOU ↔ BLACKPOOL | Jul 2019 |
| SOU ↔ MUNICH | Mar 2019 |
| SOU ↔ TENERIFE-SURREINA-SOFIA | Feb 2019 |
| SOU ↔ LYON | Jan 2019 |
| SOU ↔ HAMBURG | Jan 2019 |
| SOU ↔ LIEGE | Dec 2018 |
| SOU ↔ CLUJ-NAPOCA | Nov 2018 |
| SOU ↔ SKIATHOS | Oct 2018 |
| SOU ↔ RODEZ | Aug 2018 |
| SOU ↔ VIGO | Jul 2018 |
| SOU ↔ SAARBRUCKEN | Jul 2018 |
| SOU ↔ FRIEDRICHSHAFEN | Jun 2018 |
| SOU ↔ BREMEN | Jun 2018 |
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
Southampton appears from Jan 2018 to Jun 2026 with 80,124 arrivals.
The bounds describe the published record, not every commercial service. Final point is not necessarily a nonstop destination.
Archive route pairs: 117.
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?
24.5% of 8,266 movements over July 2025 to June 2026.
How often are they cancelled?
3.8% of 8,266 movements at short notice.
How late is late?
27.6–66.8 minutes; delayed denominator 1,707–3,842
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.