Cheapest return flights from London to Boston in December from 366€

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

Return flights

06 Dec - 11 Dec TAP
04 Dec - 11 Dec TAP
05 Dec - 11 Dec TAP
04 Dec - 07 Dec TAP
05 Dec - 07 Dec TAP
14 Dec - 12 Jan TAP
04 Dec - 08 Jan TAP
04 Dec - 09 Jan TAP
04 Dec - 11 Jan TAP
14 Dec - 10 Jan TAP
14 Dec - 11 Jan TAP
12 Dec - 09 Jan TAP
04 Dec - 08 Dec TAP
11 Dec - 22 Jan TAP
03 Dec - 14 Dec Icelandair
06 Dec - 13 Dec Icelandair
03 Dec - 17 Dec Icelandair
04 Dec - 14 Dec Icelandair
24 Dec - 24 Jan TAP
09 Dec - 12 Jan TAP

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

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