Cheapest return flights from Boston to London in April from $512

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

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

Return flights

24 Apr - 29 Apr Icelandair
15 Apr - 13 May TAP
07 Apr - 11 Apr Icelandair
25 Apr - 29 Apr Icelandair
08 Apr - 22 Apr Icelandair
27 Apr - 07 May Icelandair
20 Apr - 26 Apr Icelandair
10 Apr - 19 Apr Icelandair
15 Apr - 20 Apr Icelandair
16 Apr - 20 Apr Icelandair
17 Apr - 26 Apr Icelandair
11 Apr - 19 Apr Icelandair
29 Apr - 06 May Icelandair
26 Apr - 04 May Icelandair
28 Apr - 12 May Icelandair

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

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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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