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

Return flights

08 Nov - 30 Nov	Icelandair
12 Nov - 24 Nov	Icelandair
22 Nov - 28 Nov	Icelandair
07 Nov - 11 Nov	Icelandair
26 Nov - 02 Dec	Icelandair
05 Nov - 09 Nov	Icelandair
05 Nov - 13 Nov	Icelandair
05 Nov - 12 Nov	Icelandair
12 Nov - 16 Nov	Icelandair
05 Nov - 19 Nov	Icelandair
26 Nov - 30 Nov	Icelandair
25 Nov - 02 Dec	Icelandair
22 Nov - 01 Dec	Icelandair
26 Nov - 01 Dec	Icelandair
25 Nov - 05 Dec	Icelandair
26 Nov - 04 Dec	Icelandair
23 Nov - 05 Dec	Icelandair
20 Nov - 04 Dec	Icelandair
24 Nov - 01 Dec	Icelandair
24 Nov - 02 Dec	Icelandair

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

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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Cheapest return flights from London to Boston in November from 337€

Return flights