Airport Disruption Odds

Cardiff – Belfast City: how often flights are 3+ hours late or cancelled

Of 729 scheduled flights between Cardiff and Belfast City in 2025, 2.7% (95% range 1.8%–4.2%) were cancelled (13) or at least 3 hours late (about 7) — roughly 1 in 37. That is worse than 89% of 834 busy UK routes (median 1.1%). The route is 396 km, so when the airline is at fault UK261 compensation is £220 per passenger. This is an upper estimate: weather and air traffic control problems give no right to compensation. Source: UK CAA.

Data: CAA punctuality statistics, calendar year 2025 (published 25 February 2026) · calculated 3 November 2026 · Methodology and sources

2.7%3+ hours late or cancelled
1 in 37flights
£220UK261 per passenger if the airline is at fault

The route in 2025

Scheduled flights (both directions)729
Cancelled13
Operated but 3 hours or more lateabout 7
On time or within 15 minutes80% of operated flights
Average delay of operated flights12 minutes
Distance396 km (great circle, CWL–BHD)

By direction

DirectionScheduled flights3h+ late or cancelled95% range
From Cardiff3643.0%1.7%–5.3%
To Cardiff3652.5%1.3%–4.6%

Operated by Emerald Airlines UK (Aer Lingus Regional) (683 scheduled flights).

What you may be owed

DistanceDelay at arrivalUK261 compensation
396 km3 hours or more, or a cancellation less than 14 days ahead£220 per passenger

Caveats

CAA destination name: Belfast City (George Best).