Cheapest return flights from London to Boston in April from 377€

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

Return flights

15 Apr - 21 Apr Finnair
22 Apr - 28 Apr Finnair
13 Apr - 20 Apr Finnair
16 Apr - 20 Apr SWISS
18 Apr - 22 Apr Austrian Airlines
29 Apr - 10 May Austrian Airlines
22 Apr - 29 Apr SWISS
14 Apr - 26 Apr Air Canada
21 Apr - 28 Apr SWISS
30 Apr - 10 May SWISS
15 Apr - 22 Apr Lufthansa
18 Apr - 21 Apr Air Canada
25 Apr - 10 May Air Canada
29 Apr - 10 May Virgin Atlantic direct
25 Apr - 10 May Virgin Atlantic direct
30 Apr - 10 May Virgin Atlantic direct

Also check the deals for one-way 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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