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

Return flights

03 Nov - 20 Nov	Iberia For Level
29 Nov - 05 Dec	Iberia For Level
19 Nov - 24 Nov	TAP
13 Nov - 16 Nov	TAP
19 Nov - 26 Nov	TAP
16 Nov - 23 Nov	TAP
24 Nov - 30 Nov	TAP
30 Nov - 07 Dec	TAP
14 Nov - 21 Nov	TAP
04 Nov - 11 Nov	Iberia For Level
06 Nov - 11 Nov	Aer Lingus
05 Nov - 15 Nov	Aer Lingus
28 Nov - 06 Dec	Aer Lingus
27 Nov - 01 Dec	TAP
30 Nov - 07 Dec	Air France	direct
29 Nov - 05 Dec	Air France	direct
21 Nov - 01 Dec	Aer Lingus
25 Nov - 01 Dec	American Airlines	direct
27 Nov - 01 Dec	Air France	direct
21 Nov - 01 Dec	American Airlines	direct

Also check the deals for one-way flights from Boston to London 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 Boston to London in November from $420

Return flights