How often is Aer Lingus delayed at Heathrow?
14 flights a year cross the 3-hour compensation line
Each one worth £220 per passenger.
In the last 12 months, Aer Lingus operated 13,597 flights at Heathrow, and 0.1% were 3 or more hours late, the threshold where £220 per passenger becomes payable.
Punctuality is up on last year: 78.2% of flights ran on time against 72.8% in the twelve months before, and the average delay fell from 13.4 to 10.3 minutes.
| Aer Lingus at Heathrow, last 12 months | Figure | vs year before |
|---|---|---|
| Flights at Heathrow | 13,597 | was 13,866 |
| Ran on time (within 15 min) | 78.2% | ▲ was 72.8% |
| Average delay | 10.3 min | ▼ was 13.4 min |
| 3h+ late (compensation threshold) | 0.1% | - |
| Cancelled | 0.7% | - |
| Flights 3h+ late (a year) | 14 flights/year | - |
The CAA's figures combine arrivals and departures, so this covers traffic both ways, not departures alone.
Aer Lingus at Heathrow, month by month
Worst month: September 2025, averaging 17.9 minutes.
Aer Lingus' busiest routes at Heathrow
| Destination | 3h+ % | 3h+ delay pays |
|---|---|---|
| Dublin | 0.1% | £220 |
| Cork | 0.1% | £220 |
| Shannon | 0.1% | £220 |
| Ireland West(Knock) | 0.1% | £220 |
Your rights on this route
Heathrow is a UK airport, so every flight departing from it is covered by UK261, whichever airline you fly with. Delays of 3 or more hours pay £220 to £520 per passenger depending on how far you were flying, and the table above gives the exact figure for each of these routes. See the full breakdown on the 3-hour rule. If the flight is cancelled instead of delayed, broadly the same amounts apply under different conditions. See cancelled flight compensation.
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Aer Lingus from other airports
Other airlines at Heathrow
Source: UK Civil Aviation Authority punctuality statistics, July 2025 to June 2026. Analysis by CheckFlightCompensation; the CAA is credited as the data source as its publication conditions require. Figures cover the 25 largest UK airports.