Cheapest return flights from Boston to London in December from 409€

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

Return flights

01 Dec - 08 Dec Air Canada
01 Dec - 15 Dec Air France
21 Dec - 02 Jan Air Canada
22 Dec - 02 Jan Air Canada
20 Dec - 02 Jan Icelandair
28 Dec - 02 Jan Finnair
19 Dec - 03 Jan Finnair
18 Dec - 02 Jan Austrian Airlines
26 Dec - 02 Jan TAP
22 Dec - 02 Jan Iberia direct
21 Dec - 02 Jan Iberia direct
20 Dec - 02 Jan Iberia direct

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

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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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