Cheapest return flights from London to Boston in August from $489

Best time to book flights for London (LON) to Boston (BOS) flights at AirHint

AirHint found the following cheapest return flights from London (LON) to Boston (BOS) in August 2025 (see full year).

Return flights

24 Aug - 09 Sep easyJet
19 Aug - 27 Aug Vueling Airlines
25 Aug - 15 Sep Fly Play
25 Aug - 08 Sep Fly Play
30 Aug - 14 Sep Fly Play
28 Aug - 01 Sep Scandinavian Airlines
26 Aug - 01 Sep Scandinavian Airlines
15 Aug - 20 Aug Vueling Airlines
03 Aug - 24 Aug Vueling Airlines
15 Aug - 19 Aug Vueling Airlines
27 Aug - 07 Sep Fly Play
27 Aug - 10 Sep Fly Play
25 Aug - 01 Sep Fly Play
14 Aug - 24 Aug Vueling Airlines
28 Aug - 04 Sep Scandinavian Airlines
04 Aug - 10 Aug Ryanair
20 Aug - 25 Aug Ryanair
20 Aug - 26 Aug Ryanair
12 Aug - 18 Aug Vueling Airlines
19 Aug - 31 Aug Vueling Airlines

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

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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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