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

Return flights

22 Apr - 30 Apr	Wizz Air UK
09 Apr - 13 Apr	Wizz Air UK
09 Apr - 30 Apr	Wizz Air UK
29 Apr - 06 May	Wizz Air UK
13 Apr - 18 May	Wizz Air UK
20 Apr - 27 Apr	Wizz Air UK
20 Apr - 30 Apr	Wizz Air UK
11 Apr - 13 Apr	Wizz Air UK
10 Apr - 13 Apr	Wizz Air UK
20 Apr - 28 Apr	Wizz Air UK
22 Apr - 28 Apr	Wizz Air UK
16 Apr - 24 Apr	Wizz Air UK
30 Apr - 04 May	Vueling Airlines
28 Apr - 04 May	Vueling Airlines
22 Apr - 01 May	easyJet
28 Apr - 06 May	Icelandair
28 Apr - 07 May	Icelandair
29 Apr - 08 May	Icelandair
30 Apr - 08 May	Icelandair
30 Apr - 09 May	Icelandair

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

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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Cheapest return flights from London to Boston in April from 292€

Return flights