Cheapest return flights from Boston to London in January from $402

AirHint found the following cheapest return flights from Boston (BOS) to London (LGW) in January 2026 (see full year).

Return flights

30 Jan - 05 Feb Air Canada
26 Jan - 05 Feb Lufthansa
23 Jan - 03 Feb Air Canada
30 Jan - 14 Feb Air Canada
21 Jan - 28 Jan TAP
22 Jan - 29 Jan TAP
24 Jan - 31 Jan TAP
29 Jan - 05 Feb TAP
31 Jan - 06 Feb TAP
31 Jan - 07 Feb TAP
23 Jan - 25 Jan Air Canada
28 Jan - 01 Feb Icelandair
30 Jan - 08 Feb Air Canada
24 Jan - 01 Feb TAP
21 Jan - 29 Jan TAP
21 Jan - 24 Jan Lufthansa
27 Jan - 30 Jan Air Canada
25 Jan - 29 Jan Icelandair
22 Jan - 24 Jan SWISS
21 Jan - 25 Jan Aer Lingus

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

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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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