UK FLIGHT DELAY INDEX

derived from CAA punctuality statistics for UK reporting airports

How often are these flights late or cancelled?

BRS ↔ BELFAST INTERNATIONAL

In the twelve months from July 2025 to June 2026, 23.5% of 878 movements arriving into BRS were disrupted — that is, they landed more than fifteen minutes late or were cancelled at short notice.

Put the other way round, 76.5% of 878 movements arrived on time by the industry's fifteen-minute standard. Severe delays were rarer: about one arrival in every 125 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, 23.5% of 878 movements were disrupted and 0.8% of 878 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 shareShort-notice cancellationsAverage delay among delayed flights only — boundsOperations
23.5% of 878 movements0.8% of 878 movements31.2–65.9 min; N of delayed flights=199–392878
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: 0.8% of 878 movements. “One in N” means how many arrivals you would typically see between events at that level.

Delay threshold ladder; count and share of known operations15 min22.7%30 min13.4%60 min7.1%120 min1.6%180 min0.8%360 min0.2%
Delay ladder table: share, movements and one-in-N
DelayShare and nMovementsOne delay in every N operations
>15 min22.7% of 878 movements1994.4
>30 min13.4% of 878 movements1187.4
>60 min7.1% of 878 movements6214.2
>120 min1.6% of 878 movements1462.7
>180 min0.8% of 878 movements7125.4
>360 min0.2% of 878 movements2439.0
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.

Nine delay buckets, minutes; share of all recorded operations>15 early10011.4%15–1 early37943.2%0–15 late19322.0%16–30819.2%31–60566.4%61…120485.5%121…18070.8%181…36050.6%>36020.2%D=878
Definitions, denominators and limits

Ratio of the long tail to sixteen-to-sixty-minute delays: 0.0511; 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: Sep 2021, 2.7% of 74 movements. Worst month: Apr 2019, 100.0% of 72 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.

Monthly disruption share; gaps mean no published dataJan 2018: 19.7%; sample: 762018Feb 2018: 30.1%; sample: 73Mar 2018: 43.0%; sample: 79Apr 2018: 32.4%; sample: 74May 2018: 33.3%; sample: 75Jun 2018: 48.6%; sample: 72Jul 2018: 31.6%; sample: 76Aug 2018: 41.9%; sample: 74Sep 2018: suppressed: fewer than twenty movements×Oct 2018: suppressed: fewer than twenty movements×Nov 2018: suppressed: fewer than twenty movements×Dec 2018: 40.7%; sample: 81Jan 2019: 30.1%; sample: 832019Feb 2019: 27.8%; sample: 72Mar 2019: 36.6%; sample: 82Apr 2019: 100.0%; sample: 72May 2019: 39.0%; sample: 77Jun 2019: 42.5%; sample: 80Jul 2019: 34.4%; sample: 90Aug 2019: 43.0%; sample: 86Sep 2019: 34.1%; sample: 91Oct 2019: 25.3%; sample: 83Nov 2019: 12.0%; sample: 83Dec 2019: 22.6%; sample: 84Jan 2020: 9.4%; sample: 852020Feb 2020: 37.0%; sample: 73Mar 2020: 30.9%; sample: 68Apr 2020: suppressed: fewer than twenty movements×May 2020: suppressed: fewer than twenty movements×Jun 2020: suppressed: fewer than twenty movements×Jul 2020: 6.5%; sample: 31Aug 2020: 8.9%; sample: 45Sep 2020: 2.5%; sample: 40Oct 2020: 2.1%; sample: 47Nov 2020: 5.0%; sample: 20Dec 2020: 6.5%; sample: 46Jan 2021: 13.6%; sample: 222021Feb 2021: suppressed: fewer than twenty movements×Mar 2021: suppressed: fewer than twenty movements×Apr 2021: suppressed: fewer than twenty movements×May 2021: 2.8%; sample: 36Jun 2021: 2.5%; sample: 40Jul 2021: 8.0%; sample: 75Aug 2021: 7.9%; sample: 76Sep 2021: 2.7%; sample: 74Oct 2021: 16.5%; sample: 91Nov 2021: 5.8%; sample: 69Dec 2021: 10.3%; sample: 68Jan 2022: 4.2%; sample: 712022Feb 2022: 21.9%; sample: 64Mar 2022: 12.7%; sample: 71Apr 2022: 29.3%; sample: 75May 2022: 60.0%; sample: 90Jun 2022: 62.5%; sample: 88Jul 2022: 41.2%; sample: 80Aug 2022: 44.0%; sample: 84Sep 2022: 41.0%; sample: 83Oct 2022: 25.6%; sample: 86Nov 2022: 7.7%; sample: 52Dec 2022: 29.3%; sample: 58Jan 2023: 15.8%; sample: 572023Feb 2023: 19.5%; sample: 77Mar 2023: 37.0%; sample: 92Apr 2023: 35.1%; sample: 114May 2023: 35.8%; sample: 120Jun 2023: 53.9%; sample: 115Jul 2023: 53.6%; sample: 110Aug 2023: 50.9%; sample: 110Sep 2023: 46.1%; sample: 115Oct 2023: 39.2%; sample: 120Nov 2023: 15.6%; sample: 64Dec 2023: 18.5%; sample: 65Jan 2024: 22.5%; sample: 402024Feb 2024: 13.8%; sample: 65Mar 2024: 17.8%; sample: 73Apr 2024: 38.2%; sample: 89May 2024: 36.6%; sample: 93Jun 2024: 41.7%; sample: 96Jul 2024: 31.4%; sample: 102Aug 2024: 29.7%; sample: 101Sep 2024: 49.0%; sample: 100Oct 2024: 39.2%; sample: 74Nov 2024: 25.8%; sample: 66Dec 2024: 34.7%; sample: 72Jan 2025: 29.8%; sample: 572025Feb 2025: 26.1%; sample: 69Mar 2025: 11.1%; sample: 72Apr 2025: 21.1%; sample: 71May 2025: 26.8%; sample: 71Jun 2025: 26.0%; sample: 73Jul 2025: 30.4%; sample: 79Aug 2025: 32.9%; sample: 79Sep 2025: 26.9%; sample: 78Oct 2025: 15.8%; sample: 76Nov 2025: 14.8%; sample: 61Dec 2025: 24.7%; sample: 73Jan 2026: 38.3%; sample: 602026Feb 2026: 20.6%; sample: 68Mar 2026: 13.3%; sample: 75Apr 2026: 13.9%; sample: 72May 2026: 16.7%; sample: 78Jun 2026: 32.9%; sample: 79Pandemic regime Jun 2020Summer 2022 breakdown Jul 2022NATS system failure Aug 2023Heathrow fire closure Mar 2025100%0%
Every month since 2018, including gaps and suppressed cells
MonthDisruption on arrivals
Jan 201819.7% of 76 movements
Feb 201830.1% of 73 movements
Mar 201843.0% of 79 movements
Apr 201832.4% of 74 movements
May 201833.3% of 75 movements
Jun 201848.6% of 72 movements
Jul 201831.6% of 76 movements
Aug 201841.9% of 74 movements
Sep 2018suppressed: fewer than twenty movements
Oct 2018suppressed: fewer than twenty movements
Nov 2018suppressed: fewer than twenty movements
Dec 201840.7% of 81 movements
Jan 201930.1% of 83 movements
Feb 201927.8% of 72 movements
Mar 201936.6% of 82 movements
Apr 2019100.0% of 72 movements
May 201939.0% of 77 movements
Jun 201942.5% of 80 movements
Jul 201934.4% of 90 movements
Aug 201943.0% of 86 movements
Sep 201934.1% of 91 movements
Oct 201925.3% of 83 movements
Nov 201912.0% of 83 movements
Dec 201922.6% of 84 movements
Jan 20209.4% of 85 movements
Feb 202037.0% of 73 movements
Mar 202030.9% of 68 movements
Apr 2020suppressed: fewer than twenty movements
May 2020suppressed: fewer than twenty movements
Jun 2020suppressed: fewer than twenty movements
Jul 20206.5% of 31 movements — small sample, not ranked
Aug 20208.9% of 45 movements — small sample, not ranked
Sep 20202.5% of 40 movements — small sample, not ranked
Oct 20202.1% of 47 movements — small sample, not ranked
Nov 20205.0% of 20 movements — small sample, not ranked
Dec 20206.5% of 46 movements — small sample, not ranked
Jan 202113.6% of 22 movements — small sample, not ranked
Feb 2021suppressed: fewer than twenty movements
Mar 2021suppressed: fewer than twenty movements
Apr 2021suppressed: fewer than twenty movements
May 20212.8% of 36 movements — small sample, not ranked
Jun 20212.5% of 40 movements — small sample, not ranked
Jul 20218.0% of 75 movements
Aug 20217.9% of 76 movements
Sep 20212.7% of 74 movements
Oct 202116.5% of 91 movements
Nov 20215.8% of 69 movements
Dec 202110.3% of 68 movements
Jan 20224.2% of 71 movements
Feb 202221.9% of 64 movements
Mar 202212.7% of 71 movements
Apr 202229.3% of 75 movements
May 202260.0% of 90 movements
Jun 202262.5% of 88 movements
Jul 202241.2% of 80 movements
Aug 202244.0% of 84 movements
Sep 202241.0% of 83 movements
Oct 202225.6% of 86 movements
Nov 20227.7% of 52 movements
Dec 202229.3% of 58 movements
Jan 202315.8% of 57 movements
Feb 202319.5% of 77 movements
Mar 202337.0% of 92 movements
Apr 202335.1% of 114 movements
May 202335.8% of 120 movements
Jun 202353.9% of 115 movements
Jul 202353.6% of 110 movements
Aug 202350.9% of 110 movements
Sep 202346.1% of 115 movements
Oct 202339.2% of 120 movements
Nov 202315.6% of 64 movements
Dec 202318.5% of 65 movements
Jan 202422.5% of 40 movements — small sample, not ranked
Feb 202413.8% of 65 movements
Mar 202417.8% of 73 movements
Apr 202438.2% of 89 movements
May 202436.6% of 93 movements
Jun 202441.7% of 96 movements
Jul 202431.4% of 102 movements
Aug 202429.7% of 101 movements
Sep 202449.0% of 100 movements
Oct 202439.2% of 74 movements
Nov 202425.8% of 66 movements
Dec 202434.7% of 72 movements
Jan 202529.8% of 57 movements
Feb 202526.1% of 69 movements
Mar 202511.1% of 72 movements
Apr 202521.1% of 71 movements
May 202526.8% of 71 movements
Jun 202526.0% of 73 movements
Jul 202530.4% of 79 movements
Aug 202532.9% of 79 movements
Sep 202526.9% of 78 movements
Oct 202515.8% of 76 movements
Nov 202514.8% of 61 movements
Dec 202524.7% of 73 movements
Jan 202638.3% of 60 movements
Feb 202620.6% of 68 movements
Mar 202613.3% of 75 movements
Apr 202613.9% of 72 movements
May 202616.7% of 78 movements
Jun 202632.9% of 79 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.

EventDirectionDisruption that monthBaseline beforeReturn to baseline
Pandemic regime · Jun 2020Arrivalssuppressed: fewer than twenty movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Pandemic regime · Jun 2020Departuressuppressed: fewer than twenty movementsno complete baselinenot enough data: needs a complete baseline and a publishable event month
Summer 2022 breakdown · Jul 2022Arrivals41.2% of 80 movements20.1% across 912 flightsreturned after 4 months
Summer 2022 breakdown · Jul 2022Departures42.5% of 80 movements15.9% across 911 flightsreturned after 4 months
NATS system failure · Aug 2023Arrivals50.9% of 110 movements33.2% across 1,048 flightsreturned after 3 months
NATS system failure · Aug 2023Departures47.3% of 110 movements28.6% across 1,045 flightsreturned after 3 months
Heathrow fire closure · Mar 2025Arrivals11.1% of 72 movements33.3% across 992 flightsreturned the next month
Heathrow fire closure · Mar 2025Departures11.1% of 72 movements31.1% across 1,012 flightsreturned 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?

June has historically been the hardest month on this route: in a typical June, 42.5% of arrivals were disrupted, measured across 7 Junes in the archive. November has been the calmest, at 14.8% across 5 Novembers.

Even June has ranged from 26.0% to 62.5% 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.

Seasonality: calendar month by year; share and nJanFebMarAprMayJunJulAugSepOctNovDec201930.1% of 83 movements27.8% of 72 movements36.6% of 82 movements100.0% of 72 movements39.0% of 77 movements42.5% of 80 movements34.4% of 90 movements43.0% of 86 movements34.1% of 91 movements25.3% of 83 movements12.0% of 83 movements22.6% of 84 movements20209.4% of 85 movements37.0% of 73 movements30.9% of 68 movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements6.5% of 31 movements †8.9% of 45 movements †2.5% of 40 movements †2.1% of 47 movements †5.0% of 20 movements †6.5% of 46 movements †202113.6% of 22 movements †suppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movements2.8% of 36 movements †2.5% of 40 movements †8.0% of 75 movements7.9% of 76 movements2.7% of 74 movements16.5% of 91 movements5.8% of 69 movements10.3% of 68 movements20224.2% of 71 movements21.9% of 64 movements12.7% of 71 movements29.3% of 75 movements60.0% of 90 movements62.5% of 88 movements41.2% of 80 movements44.0% of 84 movements41.0% of 83 movements25.6% of 86 movements7.7% of 52 movements29.3% of 58 movements202315.8% of 57 movements19.5% of 77 movements37.0% of 92 movements35.1% of 114 movements35.8% of 120 movements53.9% of 115 movements53.6% of 110 movements50.9% of 110 movements46.1% of 115 movements39.2% of 120 movements15.6% of 64 movements18.5% of 65 movements202422.5% of 40 movements †13.8% of 65 movements17.8% of 73 movements38.2% of 89 movements36.6% of 93 movements41.7% of 96 movements31.4% of 102 movements29.7% of 101 movements49.0% of 100 movements39.2% of 74 movements25.8% of 66 movements34.7% of 72 movements202529.8% of 57 movements26.1% of 69 movements11.1% of 72 movements21.1% of 71 movements26.8% of 71 movements26.0% of 73 movements30.4% of 79 movements32.9% of 79 movements26.9% of 78 movements15.8% of 76 movements14.8% of 61 movements24.7% of 73 movements202638.3% of 60 movements20.6% of 68 movements13.3% of 75 movements13.9% of 72 movements16.7% of 78 movements32.9% of 79 movementsno datano datano datano datano datano data
Month-by-month table: median, observed range and sample
MonthMedianObserved rangeSample
Jan22.5%4.2–38.3%7 months, 444 flights
Feb21.9%13.8–30.1%7 months, 488 flights
Mar17.8%11.1–43.0%7 months, 544 flights
Apr32.4%13.9–100.0%7 months, 567 flights
May35.8%16.7–60.0%7 months, 604 flights
Jun42.5%26.0–62.5%7 months, 603 flights
Jul33.0%30.4–53.6%6 months, 537 flights
Aug42.5%29.7–50.9%6 months, 534 flights
Sep41.0%26.9–49.0%5 months, 467 flights
Oct25.6%15.8–39.2%5 months, 439 flights
Nov14.8%7.7–25.8%5 months, 326 flights
Dec27.0%18.5–40.7%6 months, 433 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: Easyjet Uk Ltd, 23.5% of 878 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.

Observed disruption share by optionEasyjet Uk23.5% of 878 flights
Airline comparison table: operations, cancellations, three-hour delays and data quality
AirlineOperationsDisruptionCancellations>180 minData quality
Bmi Regionalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
City Jetsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Eastern Airwayssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Easyjet Airlinesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Easyjet Europesuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Easyjet Uk87823.5% of 878 movements0.8% of 878 movements0.8% of 878 movementsdescriptive comparison
Jet2.Comsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ryanair Uksuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Thomas Cook Airlinessuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed

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, SOU had the lowest disruption share at 10.1% of 129 movements and MAN the highest at 28.0% of 1,987 movements. This route sits at 23.5% of 878 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.

Observed disruption share by optionBhx ↔ Belfast-International15.5% of 1,268 flightsEdi ↔ Belfast-International20.6% of 1,873 flightsEma ↔ Belfast-International18.1% of 144 flightsGla ↔ Belfast-International16.1% of 1,183 flightsJer ↔ Belfast-International13.0% of 77 flightsLba ↔ Belfast-International20.7% of 174 flightsLgw ↔ Belfast-International19.1% of 1,428 flightsLpl ↔ Belfast-International17.7% of 1,302 flights
Airport comparison table: operations, cancellations, three-hour delays and data quality
Other UK airport to the same cityOperationsDisruptionCancellations>180 minData quality
Abz ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Bhd ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Bhx ↔ Belfast-International1,26815.5% of 1,268 movements1.1% of 1,268 movements0.5% of 1,268 movementsdescriptive comparison
Boh ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Cwl ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Doncaster-Sheffield ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Edi ↔ Belfast-International1,87320.6% of 1,873 movements0.7% of 1,873 movements0.6% of 1,873 movementsdescriptive comparison
Ema ↔ Belfast-International14418.1% of 144 movementsno events in 144 movements0.7% of 144 movementsdescriptive comparison
Ext ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Gla ↔ Belfast-International1,18316.1% of 1,183 movements0.4% of 1,183 movements0.6% of 1,183 movementsdescriptive comparison
Iom ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Jer ↔ Belfast-International7713.0% of 77 movementsno events in 77 movements1.3% of 77 movementsdescriptive comparison
Lba ↔ Belfast-International17420.7% of 174 movements1.1% of 174 movements1.1% of 174 movementsdescriptive comparison
Lgw ↔ Belfast-International1,42819.1% of 1,428 movements0.4% of 1,428 movements0.8% of 1,428 movementsdescriptive comparison
Lhr ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Lpl ↔ Belfast-International1,30217.7% of 1,302 movements1.4% of 1,302 movements0.3% of 1,302 movementsdescriptive comparison
Ltn ↔ Belfast-International1,15122.1% of 1,151 movements0.8% of 1,151 movements0.4% of 1,151 movementsdescriptive comparison
Man ↔ Belfast-International1,98728.0% of 1,987 movements0.7% of 1,987 movements0.8% of 1,987 movementsdescriptive comparison
Mme ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Ncl ↔ Belfast-International89613.6% of 896 movementsno events in 896 movements0.4% of 896 movementsdescriptive comparison
Sen ↔ Belfast-Internationalsuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed: fewer than twenty movementssuppressed
Sou ↔ Belfast-International12910.1% of 129 movements0.8% of 129 movements1.6% of 129 movementsdescriptive comparison
Stn ↔ Belfast-International1,92315.8% of 1,923 movements0.3% of 1,923 movements0.5% of 1,923 movementsdescriptive comparison

Does the direction you are flying change anything?

Yes: arrivals into BRS ran 23.5% of 878 movements disrupted, departures 19.9% of 880 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
DirectionDisruptionCancellationsOver three hours
Arrivals into BRS23.5% of 878 movements0.8% of 878 movements0.8% of 878 movements
Departures from BRS19.9% of 880 movements0.7% of 880 movements0.2% of 880 movements
Definitions, denominators and limits

CAA conditions on delays and cancellations.

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.

DirectionWindowFlights over three hoursArithmetic statutory ceiling
ArrivalsWhole archive · Jan 2018–Jun 202635 flights out of 7,04635 × £220 = £7,700
ArrivalsLast 72 months · Jul 2020–Jun 202629 flights out of 5,14829 × £220 = £6,380
DeparturesWhole archive · Jan 2018–Jun 202621 flights out of 7,12021 × £220 = £4,620
DeparturesLast 72 months · Jul 2020–Jun 202615 flights out of 5,20915 × £220 = £3,300
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
FieldValue
UK airportBRISTOL · BRS
Final point / countryBELFAST INTERNATIONAL / UNITED KINGDOM
Final point codesBFS / EGAA
Great-circle distance433 km
Maximum statutory amount for the band£220
Average operated arrivals per day2.39
Presence in the latest twelve-month windowoperations present in every month of the latest twelve-month window
First and last active monthJan 2018–Jun 2026
Months with operations in the archive97

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: 878; excluded by quarantine: 0.

Quick answers

How often is this route disrupted?

23.5% of 878 movements over July 2025 to June 2026. Arrivals into the UK airport; all published carriers.

How many flights are cancelled at short notice?

0.8% of 878 movements in the same window.

How many delays crossed three hours?

0.8% of 878 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?

433 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.

Reconstruction and formulas

Open the versioned claim register

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