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

Return flights

24 Dec - 31 Dec	British Airways
23 Dec - 08 Jan	British Airways
22 Dec - 08 Jan	British Airways
17 Dec - 22 Jan	Lufthansa
11 Dec - 31 Dec	Lufthansa
26 Dec - 30 Dec	SWISS
25 Dec - 09 Jan	United
06 Dec - 13 Dec	TAP
23 Dec - 30 Dec	British Airways
12 Dec - 27 Dec	Aer Lingus
11 Dec - 29 Dec	Lufthansa
10 Dec - 13 Dec	Scandinavian Airlines
21 Dec - 29 Dec	Lufthansa
19 Dec - 05 Jan	Ryanair
31 Dec - 04 Jan	British Airways
14 Dec - 18 Dec	Ryanair

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

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 Berlin to Boston in December from $477

Return flights