Cheap flights from London to Belfast
from 21 US$
From 40 USD — compare hundreds of airlines
The cheapest month is usually 2026-09 · 21 US$
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About this route
Compare flights from London to Belfast, a about 527 km route (around 1h 10m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as American Airlines, British Airways, Aer Lingus operate this route.
When to buy and when to fly
Prices by date
Fares found by date — cheapest days in green.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly London to Belfast?
It's usually 2026-09, from 21 USD. Use the price calendar to compare other dates.
How long is the flight from London to Belfast?
A nonstop flight takes about 1h 10m and covers around 527 km. Connecting itineraries take longer.
Are there direct flights from London to Belfast?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from London to Belfast?
American Airlines, British Airways, Aer Lingus, easyJet operate this route, among others. Compare them all in the results.
When should I book London–Belfast flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
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London → Belfast · Live fares from 100+ sites — free, with no hidden fees.