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

Return flights

31 Aug - 07 Sep	Wizz Air UK
26 Aug - 01 Sep	Wizz Air UK
26 Aug - 05 Sep	Wizz Air UK
28 Aug - 12 Sep	Wizz Air UK
13 Aug - 17 Aug	Ryanair
27 Aug - 30 Aug	Wizz Air UK
29 Aug - 04 Sep	easyJet
11 Aug - 18 Aug	Wizz Air UK
20 Aug - 25 Aug	Wizz Air UK
10 Aug - 24 Aug	Ryanair
22 Aug - 01 Sep	easyJet
07 Aug - 23 Aug	Wizz Air UK
05 Aug - 18 Aug	easyJet
12 Aug - 19 Aug	Wizz Air UK
05 Aug - 19 Aug	easyJet
17 Aug - 02 Sep	Wizz Air UK
06 Aug - 19 Aug	Wizz Air UK
14 Aug - 02 Sep	Wizz Air UK
17 Aug - 03 Sep	easyJet
13 Aug - 02 Sep	easyJet

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

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 August from 615€

Return flights