LHR → BOS · direct available
Cheap flights from London to Boston
We track fares from London to Boston, United States every day. Across 73 prices we've logged, the cheapest was €489 return and a typical fare runs around €568. The cheapest month to fly is usually Oct 2026.
Cheapest seen
€489
Typical price
€568
Cheapest month
Oct 2026
Non-stop
Available
No live deal on this exact route right now — but the typical fare is around €568. Search your dates below, or browse all deals to United States.
Cheapest months to fly
The typical cheapest fare by month, from our tracking — a guide only. Check the live price on Aviasales before booking.
| Month | Typical from | Check price |
|---|---|---|
| Oct 2026 | €489 | Check on Aviasales → |
| Nov 2026 | €499 | Check on Aviasales → |
Each link opens the live Aviasales search for that month, where you can pick the exact cheapest dates.
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London to Boston: the basics
- Route
- London (LHR) → Boston (BOS)
- Distance
- 5,240 km
- Non-stop
- Yes
- Airlines seen
- Air Canada, Air France, B6, British Airways, airBaltic, EI
Planning the trip? United States: what to see and when to go covers where to go and when.