Cheapest one-way flights from London to Boston in April from $314

AirHint found the following cheapest one-way flights from London (LCY) to Boston (BOS) in April 2026 (see full year).

One-Way flights

22 Apr ITA Airways
20 Apr ITA Airways
13 Apr ITA Airways
08 Apr Luxair
09 Apr Luxair
27 Apr Lufthansa
15 Apr Lufthansa
29 Apr Lufthansa
05 Apr SWISS
07 Apr SWISS

Also check the deals for return flights from London to Boston in April.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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