Cheapest return flights from Boston to London in May from 459€

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

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

Return flights

01 May - 12 May Icelandair
02 May - 05 May Icelandair
06 May - 20 May Icelandair
01 May - 15 May Icelandair
02 May - 10 May Icelandair
06 May - 11 May Icelandair
02 May - 09 May Icelandair
16 May - 21 May Icelandair
02 May - 11 May Icelandair
01 May - 08 May Icelandair
15 May - 15 Jun Icelandair
13 May - 19 Jun Fly Play
23 May - 01 Jun Fly Play
15 May - 15 Jun KLM direct
13 May - 19 Jun Air France direct
12 May - 09 Jun Delta direct
18 May - 01 Jun Delta direct
28 May - 08 Jun TAP
16 May - 01 Jun Iberia direct
26 May - 02 Jun TAP

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

Skyscanner

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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