How often are these flights late or cancelled?
CWL ↔ AMS
In the twelve months from July 2025 to June 2026, 22.2% of 729 movements arriving into CWL were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.
Put the other way round, 77.8% of 729 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 243 crossed the three-hour mark. Lower is better on every figure on this page. These numbers describe what happened on the route; they are not a prediction for any individual flight.
Definitions, denominators and limits
- “Disrupted” means an arrival more than fifteen minutes late or a short-notice cancellation. The denominator is operated movements plus short-notice cancellations.
- Arrivals into the UK airport only; all published carriers.
- Crossing three hours is one condition for compensation, but monthly data cannot establish any individual passenger’s rights.
- Delay cause is not published in the open data.
- Source: CAA punctuality statistics · snapshot 17/08/2026 10:24 · method route-record-v2.1.
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
In the twelve months from July 2025 to June 2026, 22.2% of 729 movements were disrupted and 4.1% of 729 movements were cancelled at short notice.
When a flight was late, it was typically late by the range shown below. The delay is given as a range, not a single number, because the regulator rounds its published percentages and never says how many flights landed exactly on time.
| Disruption share | Short-notice cancellations | Average delay among delayed flights only — bounds | Operations |
|---|---|---|---|
| 22.2% of 729 movements | 4.1% of 729 movements | 18.1–62.6 min; N of delayed flights=132–417 | 729 |
Definitions, denominators and limits
The bounds account for CAA rounding and the unknown number of zero delays. A point average across all operated movements, including punctual ones, would answer a different question and is not used here.
When it is late, how late is it?
Most delays here are short. The ladder below shows how many arrivals crossed each threshold, from a quarter of an hour up to six hours; each rung can only be smaller than the one above it.
Cancellations are counted separately: 4.1% of 729 movements. “One in N” means how many arrivals you would typically see between events at that level.
Delay ladder table: share, movements and one-in-N
| Delay | Share and n | Movements | One delay in every N operations |
|---|---|---|---|
| >15 min | 18.1% of 729 movements | 132 | 5.5 |
| >30 min | 10.4% of 729 movements | 76 | 9.6 |
| >60 min | 3.6% of 729 movements | 26 | 28.0 |
| >120 min | 1.2% of 729 movements | 9 | 81.0 |
| >180 min | 0.4% of 729 movements | 3 | 243.0 |
| >360 min | no events in 729 movements | 0 | no observed events, which is not zero risk |
Definitions, denominators and limits
CAA counts delays strictly greater than each threshold, so exactly three hours is inseparable from the previous bucket. The ladder describes the archive, not a forecast.
Slightly late, or occasionally a disaster?
This route runs late less often than most, but when it does go wrong it tends to go badly wrong: its long delays are heavier than on the typical UK route.
The histogram below counts every recorded arrival, from more than fifteen minutes early through to more than six hours late. A tall bar near the middle and a thin right-hand tail is the healthy shape.
Definitions, denominators and limits
Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0283; corpus median 0.0217; 2056 routes in the corpus. The shape is compared conditionally among delays; the class name does not measure absolute frequency. Histogram counts and shares cover all recorded operations including unmatched records; reconstructed uniquely.
Has this route got better or worse since 2018?
Best month: Mar 2020, 1.7% of 59 movements. Worst month: Nov 2023, 48.8% of 86 movements.
The line traces every month in the archive; lower is better. Gaps are months with no published data, never zeros. The 2020 and 2021 readings reflect the pandemic, not normal service.
Every month since 2018, including gaps and suppressed cells
| Month | Disruption on arrivals |
|---|---|
| Jan 2018 | 12.8% of 86 movements |
| Feb 2018 | 11.5% of 78 movements |
| Mar 2018 | 17.2% of 87 movements |
| Apr 2018 | 6.0% of 84 movements |
| May 2018 | 8.0% of 88 movements |
| Jun 2018 | 14.1% of 85 movements |
| Jul 2018 | 4.5% of 89 movements |
| Aug 2018 | 10.1% of 89 movements |
| Sep 2018 | 10.6% of 85 movements |
| Oct 2018 | 5.6% of 89 movements |
| Nov 2018 | 3.5% of 86 movements |
| Dec 2018 | 12.2% of 82 movements |
| Jan 2019 | 15.1% of 86 movements |
| Feb 2019 | 9.6% of 83 movements |
| Mar 2019 | 34.5% of 119 movements |
| Apr 2019 | 9.3% of 86 movements |
| May 2019 | 16.9% of 89 movements |
| Jun 2019 | 16.7% of 84 movements |
| Jul 2019 | 4.5% of 88 movements |
| Aug 2019 | 6.8% of 88 movements |
| Sep 2019 | 23.3% of 86 movements |
| Oct 2019 | 16.5% of 79 movements |
| Nov 2019 | 8.2% of 85 movements |
| Dec 2019 | 13.3% of 83 movements |
| Jan 2020 | 7.0% of 86 movements |
| Feb 2020 | 25.6% of 78 movements |
| Mar 2020 | 1.7% of 59 movements |
| Apr 2020 | suppressed: fewer than twenty movements |
| May 2020 | suppressed: fewer than twenty movements |
| Jun 2020 | suppressed: fewer than twenty movements |
| Jul 2020 | suppressed: fewer than twenty movements |
| Aug 2020 | 3.6% of 28 movements — small sample, not ranked |
| Sep 2020 | no events in 40 movements — small sample, not ranked |
| Oct 2020 | no events in 25 movements — small sample, not ranked |
| Nov 2020 | suppressed: fewer than twenty movements |
| Dec 2020 | suppressed: fewer than twenty movements |
| Jan 2021 | suppressed: fewer than twenty movements |
| Feb 2021 | suppressed: fewer than twenty movements |
| Mar 2021 | suppressed: fewer than twenty movements |
| Apr 2021 | suppressed: fewer than twenty movements |
| May 2021 | suppressed: fewer than twenty movements |
| Jun 2021 | suppressed: fewer than twenty movements |
| Jul 2021 | 3.8% of 26 movements — small sample, not ranked |
| Aug 2021 | suppressed: fewer than twenty movements |
| Sep 2021 | suppressed: fewer than twenty movements |
| Oct 2021 | 15.0% of 20 movements — small sample, not ranked |
| Nov 2021 | suppressed: fewer than twenty movements |
| Dec 2021 | 22.7% of 22 movements — small sample, not ranked |
| Jan 2022 | suppressed: fewer than twenty movements |
| Feb 2022 | suppressed: fewer than twenty movements |
| Mar 2022 | 12.5% of 24 movements — small sample, not ranked |
| Apr 2022 | 36.4% of 22 movements — small sample, not ranked |
| May 2022 | 41.7% of 36 movements — small sample, not ranked |
| Jun 2022 | 39.6% of 53 movements |
| Jul 2022 | 26.8% of 41 movements — small sample, not ranked |
| Aug 2022 | 4.7% of 43 movements — small sample, not ranked |
| Sep 2022 | 44.4% of 54 movements |
| Oct 2022 | 18.2% of 55 movements |
| Nov 2022 | 3.6% of 56 movements |
| Dec 2022 | 19.3% of 57 movements |
| Jan 2023 | 3.5% of 57 movements |
| Feb 2023 | 3.8% of 52 movements |
| Mar 2023 | 16.9% of 59 movements |
| Apr 2023 | 13.2% of 68 movements |
| May 2023 | 17.3% of 75 movements |
| Jun 2023 | 24.4% of 78 movements |
| Jul 2023 | 24.7% of 93 movements |
| Aug 2023 | 32.2% of 90 movements |
| Sep 2023 | 37.8% of 90 movements |
| Oct 2023 | 27.2% of 92 movements |
| Nov 2023 | 48.8% of 86 movements |
| Dec 2023 | 44.8% of 87 movements |
| Jan 2024 | 32.6% of 89 movements |
| Feb 2024 | 28.4% of 81 movements |
| Mar 2024 | 28.7% of 87 movements |
| Apr 2024 | 24.6% of 57 movements |
| May 2024 | 16.9% of 59 movements |
| Jun 2024 | 15.5% of 58 movements |
| Jul 2024 | 11.9% of 59 movements |
| Aug 2024 | 8.2% of 61 movements |
| Sep 2024 | 25.5% of 55 movements |
| Oct 2024 | 18.0% of 61 movements |
| Nov 2024 | 14.8% of 61 movements |
| Dec 2024 | 29.0% of 62 movements |
| Jan 2025 | 35.5% of 62 movements |
| Feb 2025 | 15.5% of 58 movements |
| Mar 2025 | 7.9% of 63 movements |
| Apr 2025 | 10.0% of 60 movements |
| May 2025 | 13.1% of 61 movements |
| Jun 2025 | 7.3% of 55 movements |
| Jul 2025 | 37.1% of 62 movements |
| Aug 2025 | 25.8% of 62 movements |
| Sep 2025 | 45.8% of 59 movements |
| Oct 2025 | 24.2% of 62 movements |
| Nov 2025 | 13.3% of 60 movements |
| Dec 2025 | 15.6% of 64 movements |
| Jan 2026 | 37.1% of 62 movements |
| Feb 2026 | 8.9% of 56 movements |
| Mar 2026 | 10.0% of 60 movements |
| Apr 2026 | 10.0% of 60 movements |
| May 2026 | 19.4% of 62 movements |
| Jun 2026 | 18.3% of 60 movements |
What did the big disruptions actually do here?
Each named event below is shown against this route’s own baseline for the twelve months before it, and against how long the route took to get back to that baseline.
A month worse than baseline is not proof the named event caused it: the open data carry no delay-cause field at all. Some events sit near the edge of the archive, which limits how long a recovery can be traced.
| Event | Direction | Disruption that month | Baseline before | Return to baseline |
|---|---|---|---|---|
| Pandemic regime · Jun 2020 | Arrivals | suppressed: fewer than twenty movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Pandemic regime · Jun 2020 | Departures | suppressed: fewer than twenty movements | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| Summer 2022 breakdown · Jul 2022 | Arrivals | 26.8% of 41 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 | Departures | 26.8% of 41 movements — small sample, not ranked | no complete baseline | not enough data: needs a complete baseline and a publishable event month |
| NATS system failure · Aug 2023 | Arrivals | 32.2% of 90 movements | 16.2% across 747 flights | still above it 8 months later |
| NATS system failure · Aug 2023 | Departures | 30.3% of 89 movements | 17.7% across 744 flights | still above it 8 months later |
| Heathrow fire closure · Mar 2025 | Arrivals | 7.9% of 63 movements | 20.3% across 740 flights | returned the next month |
| Heathrow fire closure · Mar 2025 | Departures | 12.9% of 62 movements | 29.5% across 736 flights | returned the next month |
Definitions, denominators and limits
The baseline is the unweighted mean share over the twelve preceding calendar months. The return window is the following eight months, up to the end of the archive. Return means the first observed value at or below the baseline; it is not the duration of the disruption itself. If the event month is already below the baseline, counting still starts the month after. Gaps and suppressed cells are not treated as zeros or as recovery.
Which time of year has historically been hardest?
September has historically been the hardest month on this route: in a typical September, 31.6% of arrivals were disrupted, measured across 6 Septembers in the archive. August has been the calmest, at 9.2% across 6 Augusts.
Even September has ranged from 10.6% to 45.8% in different years, so this is a record of what happened, not a forecast of what will. Lower is better throughout.
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 | 23.9% | 3.5–37.1% | 6 months, 442 flights |
| Feb | 10.6% | 3.8–28.4% | 6 months, 408 flights |
| Mar | 16.9% | 7.9–34.5% | 7 months, 499 flights |
| Apr | 10.0% | 6.0–36.4% | 7 months, 437 flights |
| May | 16.9% | 8.0–41.7% | 7 months, 470 flights |
| Jun | 16.7% | 7.3–39.6% | 7 months, 473 flights |
| Jul | 18.3% | 4.5–37.1% | 6 months, 432 flights |
| Aug | 9.2% | 4.7–32.2% | 6 months, 433 flights |
| Sep | 31.6% | 10.6–45.8% | 6 months, 429 flights |
| Oct | 18.1% | 5.6–27.2% | 6 months, 438 flights |
| Nov | 10.8% | 3.5–48.8% | 6 months, 434 flights |
| Dec | 17.5% | 12.2–44.8% | 6 months, 435 flights |
Definitions, denominators and limits
The matrix shows the last eight calendar years, including an incomplete final year; the start of the archive is kept in the history above. Seasonal summaries use the whole available archive, excluding the pandemic regime 2020–2021; this is an observed range, not a forecast. Zero events, missing data and suppressed cells are marked separately. † marks a small sample, described but not ranked. For ranges the colour follows the upper bound.
Which airline has the better record here?
Only one carrier published enough flights here to report: Klm, 22.1% of 728 movements disrupted.
Figures cover arrivals, July 2025 to June 2026; lower is better in every column. Carriers with fewer than twenty published flights are suppressed rather than shown as zero. The page makes no ranking: the operations behind these shares are not matched for aircraft, time of day or season.
Airline comparison table: operations, cancellations, three-hour delays and data quality
| Airline | Operations | Disruption | Cancellations | >180 min | Data quality |
|---|---|---|---|---|---|
| Arkefly | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Eastern Airways | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Jetairfly | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Klasjet Uab | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Klm | 728 | 22.1% of 728 movements | 4.1% of 728 movements | 0.4% of 728 movements | descriptive comparison |
| Klm Cityhopper | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Privilege Style | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Tui Fly Belgium | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
The noise check is a descriptive approximation assuming independent operations. Delay correlation and mix differences are not estimated; no ranking is derived.
Would another UK airport have been better?
Among UK airports flying to this city with enough flights to publish, LCY had the lowest disruption share at 16.7% of 3,758 movements and BFS the highest at 41.3% of 213 movements. This route sits at 22.2% of 729 movements.
Each figure is arrivals into that UK airport, all carriers combined, over the same twelve months. It is a historical record, not a recommendation about where to fly from, and it says nothing about getting to or from each airport on the ground.
Airport comparison table: operations, cancellations, three-hour delays and data quality
| Other UK airport to the same city | Operations | Disruption | Cancellations | >180 min | Data quality |
|---|---|---|---|---|---|
| Abz ↔ Ams | 1,715 | 22.9% of 1,715 movements | 4.2% of 1,715 movements | no events in 1,715 movements | descriptive comparison |
| Bfs ↔ Ams | 213 | 41.3% of 213 movements | 2.3% of 213 movements | 0.5% of 213 movements | descriptive comparison |
| Bhd ↔ Ams | 661 | 18.9% of 661 movements | 2.1% of 661 movements | no events in 661 movements | descriptive comparison |
| Bhx ↔ Ams | 2,325 | 26.0% of 2,325 movements | 2.9% of 2,325 movements | 0.3% of 2,325 movements | descriptive comparison |
| Boh ↔ Ams | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Brs ↔ Ams | 2,208 | 30.4% of 2,208 movements | 2.4% of 2,208 movements | 0.6% of 2,208 movements | descriptive comparison |
| Doncaster-Sheffield ↔ Ams | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Durham-Tees-Valley ↔ Ams | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Edi ↔ Ams | 2,433 | 27.9% of 2,433 movements | 2.7% of 2,433 movements | 0.4% of 2,433 movements | descriptive comparison |
| Ema ↔ Ams | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Ext ↔ Ams | 356 | 18.5% of 356 movements | 4.2% of 356 movements | no events in 356 movements | descriptive comparison |
| Gla ↔ Ams | 1,560 | 25.7% of 1,560 movements | 2.2% of 1,560 movements | 0.3% of 1,560 movements | descriptive comparison |
| Jer ↔ Ams | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed: fewer than twenty movements | suppressed |
| Lba ↔ Ams | 1,130 | 24.3% of 1,130 movements | 3.5% of 1,130 movements | 0.1% of 1,130 movements | descriptive comparison |
| Lcy ↔ Ams | 3,758 | 16.7% of 3,758 movements | 2.8% of 3,758 movements | 0.3% of 3,758 movements | descriptive comparison |
| Lgw ↔ Ams | 1,821 | 27.3% of 1,821 movements | 2.1% of 1,821 movements | 0.6% of 1,821 movements | descriptive comparison |
| Lhr ↔ Ams | 5,655 | 24.4% of 5,655 movements | 2.6% of 5,655 movements | 0.3% of 5,655 movements | descriptive comparison |
| Lpl ↔ Ams | 392 | 23.7% of 392 movements | 2.3% of 392 movements | 0.3% of 392 movements | descriptive comparison |
| Ltn ↔ Ams | 1,653 | 30.2% of 1,653 movements | 1.7% of 1,653 movements | 0.7% of 1,653 movements | descriptive comparison |
| Man ↔ Ams | 3,777 | 38.4% of 3,777 movements | 2.4% of 3,777 movements | 0.5% of 3,777 movements | descriptive comparison |
| Mme ↔ Ams | 846 | 23.0% of 846 movements | 4.3% of 846 movements | 0.4% of 846 movements | descriptive comparison |
| Ncl ↔ Ams | 1,829 | 28.0% of 1,829 movements | 1.6% of 1,829 movements | 0.5% of 1,829 movements | descriptive comparison |
| Sen ↔ Ams | 250 | 26.8% of 250 movements | 0.4% of 250 movements | no events in 250 movements | descriptive comparison |
| Sou ↔ Ams | 789 | 23.3% of 789 movements | 3.0% of 789 movements | 0.3% of 789 movements | descriptive comparison |
| Stn ↔ Ams | 493 | 25.4% of 493 movements | 2.2% of 493 movements | 0.2% of 493 movements | descriptive comparison |
Does the direction you are flying change anything?
Yes: arrivals into CWL ran 22.2% of 729 movements disrupted, departures 32.3% of 730 movements.
It matters legally as well as practically: a departure from the UK and an arrival into the UK on a UK or EU carrier fall under different conditions, and a departure delay does not establish a late arrival at your final destination.
Arrivals and departures side by side
| Direction | Disruption | Cancellations | Over three hours |
|---|---|---|---|
| Arrivals into CWL | 22.2% of 729 movements | 4.1% of 729 movements | 0.4% of 729 movements |
| Departures from CWL | 32.3% of 730 movements | 5.1% of 730 movements | 0.5% of 730 movements |
Definitions, denominators and limits
How many flights here crossed the three-hour mark?
The table below counts arrivals and departures that ran more than three hours late — the threshold that is one of the conditions for compensation — across the whole archive and within the last six years.
The pound figure beside each count is arithmetic, not money anyone received: it is the count multiplied by the maximum statutory amount for this distance band. Whether any of those flights actually qualified is not knowable from this data.
| Direction | Window | Flights over three hours | Arithmetic statutory ceiling |
|---|---|---|---|
| Arrivals | Whole archive · Jan 2018–Jun 2026 | 8 flights out of 5,839 | 8 × £220 = £1,760 |
| Arrivals | Last 72 months · Jul 2020–Jun 2026 | 7 flights out of 3,532 | 7 × £220 = £1,540 |
| Departures | Whole archive · Jan 2018–Jun 2026 | 25 flights out of 5,833 | 25 × £220 = £5,500 |
| Departures | Last 72 months · Jul 2020–Jun 2026 | 19 flights out of 3,525 | 19 × £220 = £4,180 |
Definitions, denominators and limits
Full formula: the count is the sum of the two tail buckets across months, carriers and service types in one direction; the ceiling is that count multiplied by the maximum statutory amount for the distance band. The condition is: if every such delay had been the carrier's fault and a claim had been filed on every one of them.
This is conditional arithmetic over operations: passenger numbers, legal applicability and the number of claims are all unknown. For departures it is an arithmetic scenario only, because arrival at the final point is not observed. For long routes the maximum ceiling is used; any reduction in the payable amount is not calculated.
The archive window is counted from the last month of data, not from today: this is not a limitation check for an individual case. The CAA states six years for England and Wales and five for Scotland. CAA: time limits and how to complain. Information, not a legal service.
The facts about this route
Route reference table: codes, distance, frequency, archive span
| Field | Value |
|---|---|
| UK airport | CARDIFF WALES · CWL |
| Final point / country | AMSTERDAM / NETHERLANDS |
| Final point codes | AMS / EHAM |
| Great-circle distance | 566 km |
| Maximum statutory amount for the band | £220 |
| Average operated arrivals per day | 1.92 |
| Presence in the latest twelve-month window | operations present in every month of the latest twelve-month window |
| First and last active month | Jan 2018–Jun 2026 |
| Months with operations in the archive | 95 |
origin_destination is the final point of the CAA service, not evidence of a nonstop connection. The distance joins the coordinates of the named airports; the actual track is unknown. Frequency describes published operations.
What this data cannot tell you
Delay cause is not published in the regulator's open data. Monthly aggregates describe a population, not a specific flight. Cells below twenty operations are suppressed; twenty to forty-nine are descriptive only and not ranked. Arrivals and departures do not add up. Cancellations are short-notice only, by the CAA definition. A movement is not the same as a scheduled flight.
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.
Data-quality counters for this route
Zero observed events does not mean zero risk. Operator coverage against the Summary file is not established in this record; comparisons are limited to the published population.
Unmatched records: 0; all recorded operations: 729; excluded by quarantine: 0.
Quick answers
How often is this route disrupted?
22.2% of 729 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.
How many flights are cancelled at short notice?
4.1% of 729 movements in the same window.
How many delays crossed three hours?
0.4% of 729 movements in the same window; these are observed movements, not a count of claims.
What does the delay distribution look like?
rare but severe. The class compares the tail with short delays across routes in the corpus.
What distance is used?
566 km, great-circle.
Can compensation entitlement be established here?
No. The cause and the circumstances of an individual flight are unknown. Official CAA conditions.
Why do some cells say "no data"?
That month is absent from the published series. Small cells carry a separate "suppressed" marker; a gap is never replaced by a zero.
How this was calculated
Dataset version, input hashes and reconstruction rules
Dataset version: 396da8dde2874f14; method route-record-v2.1.
Versioned register of every number and the entity map · Input hashes · Correction log · Reconstruction and formulas.
Reconstruction: integer counts inside the rounding bounds of shares of D, summing to M. Ambiguity is preserved as a range of feasible counts; non-convergence stays in quarantine. The map of codes and coordinates is pinned by hash alongside the data. Raw CSV files are not included in the published output.
Your trip has already gone wrong — what now?
The official route to complain
Contact the airline first, then the relevant ADR body or the CAA. The right to care is assessed separately from compensation; time limits and circumstances are checked case by case. CAA: how to complain.