Heathrow flight delays
Departures · 203 routes · 476,897 flights · May 2025 – April 2026 · source: UK CAA
Departures from Heathrow run late
22%of the time, by +49 min on average when they do.
This is the historical record, not today's status — for live departures, check the airport's own board.
On-time rate
78%
Delayed 3h+
0.5%
Cancelled
1.3%
Avg when late
+49m
Were you delayed 3+ hours leaving Heathrow?
About 0.5% of departures here land 3h+ late. If yours did, under UK261 you could be owed up to £520 — and you can claim it yourself for free. Check if you're owed →
Best & worst routes from Heathrow
Busiest routes from Heathrow
Heathrow → New York (JF Kennedy)delayed 18%
Heathrow → Dublindelayed 23%
Heathrow → Amsterdamdelayed 20%
Heathrow → Frankfurt Maindelayed 22%
Heathrow → Munichdelayed 23%
Heathrow → Madriddelayed 20%
Heathrow → Paris (Charles De Gaulle)delayed 23%
Heathrow → Genevadelayed 22%
Heathrow → Zurichdelayed 25%
Heathrow → Lisbondelayed 32%
Heathrow → Edinburghdelayed 22%
Heathrow → Copenhagendelayed 16%
Frequently asked
How often are flights from Heathrow delayed?
About 22% of departures from Heathrow arrive late (15+ minutes), across 203 routes and 476,897 flights in May 2025 – April 2026, based on public UK CAA data.
Which route from Heathrow is most delayed?
Heathrow → Tunis is the least punctual departure (delayed 60%), while Heathrow → Marrakesh is the most on-time (6%).
Can I get compensation for a delayed flight from Heathrow?
Yes — if you departed Heathrow and arrived 3+ hours late for a reason within the airline's control, you may be owed up to £520 under UK261. About 0.5% of departures here land 3h+ late. You can claim it yourself for free.
Delay figures are historical, from public UK CAApunctuality data — not a forecast for any given flight, and not a live status board. “%” is the share of departures arriving 15+ minutes late.