Cheapest return flights from London to Boston in April from 367€

AirHint found the following cheapest return flights from London (LHR) to Boston (BOS) in April 2026 (see full year).

Return flights

16 Apr - 20 Apr SWISS
23 Apr - 27 Apr SWISS
16 Apr - 19 Apr SWISS
16 Apr - 21 Apr SWISS
21 Apr - 05 May Lufthansa
18 Apr - 25 Apr Austrian Airlines
18 Apr - 27 Apr Austrian Airlines
18 Apr - 22 Apr Austrian Airlines
17 Apr - 23 Apr Austrian Airlines
10 Apr - 24 Apr Austrian Airlines
20 Apr - 27 Apr Austrian Airlines
24 Apr - 10 May Austrian Airlines
28 Apr - 27 May Aer Lingus
25 Apr - 09 May Austrian Airlines
21 Apr - 05 May British Airways direct
24 Apr - 01 May Air Canada
28 Apr - 27 May Finnair direct
24 Apr - 10 May British Airways direct
25 Apr - 09 May British Airways direct
24 Apr - 01 May Delta direct

Also check the deals for one-way flights from London to Boston in April.

Skyscanner

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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