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UK flight punctuality — the monthly dataset

A free, citable CSV of UK departure punctuality covering 90 routes and 24 airlines for May 2026, with 5 months of history. It includes a derived disruption index — the share of flights hit by a compensation-relevant disruption — which the CAA does not publish.

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UK departures arriving 3+ hours late, by airline0%0.5%1%1.5%2%United Airlines: 1.2%United Airlines1.2%American Airlines: 0.9%American Airlines0.9%Aurigny Air Services: 0.8%Aurigny Air Services0.8%TUI Airways: 0.7%TUI Airways0.7%British Airways: 0.5%British Airways0.5%Lufthansa: 0.4%Lufthansa0.4%Aer Lingus: 0.3%Aer Lingus0.3%Aer Lingus Regional: 0.3%Aer Lingus Regional0.3%Eurowings: 0.3%Eurowings0.3%Loganair: 0.3%Loganair0.3%easyJet: 0.2%easyJet0.2%Jet2: 0.2%Jet20.2%Owedly · derived from UK CAA punctuality data, May 2026 · owedly.org/data
The airlines whose UK departures most often cross the UK261 compensation threshold. This is the ranking that annual press analyses of CAA data produce — we publish it every month.
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<iframe src="https://owedly.org/embed/airline-delays.svg" width="100%" height="460" style="border:0;max-width:760px" loading="lazy" title="UK departures arriving 3+ hours late, by airline — Owedly"></iframe>

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UK departures arriving 3+ hours late, by airport0%0.3%0.5%0.8%1%Belfast International (BFS): 0.8%Belfast International (BFS)0.8%Edinburgh (EDI): 0.6%Edinburgh (EDI)0.6%Bristol (BRS): 0.5%Bristol (BRS)0.5%London Heathrow (LHR): 0.5%London Heathrow (LHR)0.5%Belfast City (BHD): 0.3%Belfast City (BHD)0.3%Birmingham (BHX): 0.3%Birmingham (BHX)0.3%London Gatwick (LGW): 0.2%London Gatwick (LGW)0.2%Manchester (MAN): 0.2%Manchester (MAN)0.2%Glasgow (GLA): 0%Glasgow (GLA)0%Leeds Bradford (LBA): 0%Leeds Bradford (LBA)0%Liverpool (LPL): 0%Liverpool (LPL)0%London City (LCY): 0%London City (LCY)0%Owedly · derived from UK CAA punctuality data, May 2026 · owedly.org/data
Departure airports ranked by weighted 3-hour delay rate across every route we track from them. Useful for a regional angle: each airport is its own local story.
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<iframe src="https://owedly.org/embed/airport-delays.svg" width="100%" height="460" style="border:0;max-width:760px" loading="lazy" title="UK departures arriving 3+ hours late, by airport — Owedly"></iframe>

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UK flight disruption rate, month by month024January: 2.6%JanuaryFebruary: 1.7%FebruaryMarch: 1.7%MarchApril: 1.1%AprilMay: 1.2%May1.2%Owedly · derived from UK CAA punctuality data, May 2026 · owedly.org/data
The share of tracked UK departures hit by a compensation-relevant disruption — a 3-hour delay or a cancellation — weighted by flight volume.
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<iframe src="https://owedly.org/embed/disruption-trend.svg" width="100%" height="380" style="border:0;max-width:760px" loading="lazy" title="UK flight disruption rate, month by month — Owedly"></iframe>

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Licence & reuse

  • Free to use — including commercially — with attribution to Owedly and a link to this page.
  • Derived, not republished. Every column is a metric we computed. We do not redistribute the CAA source file; get that from the CAA directly.
  • Not endorsed by the CAA. Owedly is independent. Errors in these figures are ours, not theirs.
  • Corrections welcome — if a number looks wrong, email khotarafat@gmail.com and we will check it against the source file.

How to cite

Owedly (2026). UK Flight Punctuality — Derived Metrics, May 2026. Derived from UK Civil Aviation Authority punctuality statistics. https://owedly.org/data/

The URL pattern is stable: /data/owedly-uk-routes-YYYY-MM.csv. Past months are never rewritten, so a citation to a specific month keeps resolving to the numbers as published.

What the columns mean

flightsTracked departures in the month, after filtering to UK reporting airports.
pct_delayed_15mShare of those flights arriving more than 15 minutes late, weighted by flight count.
pct_delayed_3hShare arriving 3 hours or more late — the UK261 compensation threshold.
pct_cancelledShare cancelled before departure.
avg_delay_minsMean arrival delay across all departures, weighted by flight count.
disruption_indexOur derived metric: the share of flights hit by a compensation-relevant disruption (3h+ delay or cancellation), before accounting for cause. Not a CAA figure.

Sample-size floors, the airport filter and the index derivation are all written up in full on the methodology page.

Delay statistics derived from UK Civil Aviation Authority (CAA) punctuality data. UK CAA flight punctuality statistics · May 2026. Not affiliated with or endorsed by the CAA. How we calculate these figures →

UK261 amounts & eligibility rules last verified 8 July 2026 against gov.uk and CAA guidance by Mohammed Arafat Khot · about this site