Cheapest return flights from London to Boston in May from 426€

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

Return flights

11 May - 15 May Icelandair
06 May - 10 May Icelandair
13 May - 16 May Icelandair
07 May - 14 May Icelandair
08 May - 15 May Icelandair
01 May - 04 May Icelandair
01 May - 16 May Icelandair
01 May - 05 May Icelandair
08 May - 11 May Icelandair
04 May - 11 May TAP
30 May - 06 Jun Virgin Atlantic
30 May - 13 Jun Virgin Atlantic
25 May - 01 Jun Virgin Atlantic
30 May - 06 Jun Virgin Atlantic direct
21 May - 04 Jun Virgin Atlantic
25 May - 01 Jun Virgin Atlantic direct
27 May - 03 Jun Icelandair
30 May - 13 Jun Virgin Atlantic direct
21 May - 04 Jun Virgin Atlantic direct
29 May - 12 Jun Aer Lingus

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

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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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