Cheapest return flights from London to Boston in April from $595

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

Return flights

21 Apr - 28 Apr Lufthansa
20 Apr - 23 Apr Lufthansa
16 Apr - 22 Apr ITA Airways
20 Apr - 26 Apr ITA Airways
24 Apr - 30 Apr ITA Airways
30 Apr - 06 May ITA Airways
16 Apr - 21 Apr SWISS
15 Apr - 26 Apr SWISS
13 Apr - 20 Apr Lufthansa
16 Apr - 23 Apr Lufthansa
16 Apr - 27 Apr Lufthansa
28 Apr - 10 May Lufthansa
18 Apr - 03 May SWISS
26 Apr - 02 May SWISS

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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