Cheapest return flights from Boston to Copenhagen in December from $424

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

Return flights

08 Dec - 15 Dec SWISS
08 Dec - 14 Dec Lufthansa
09 Dec - 14 Dec Icelandair
28 Dec - 16 Jan Scandinavian Airlines
08 Dec - 13 Dec Scandinavian Airlines
13 Dec - 17 Dec Iberia
06 Dec - 13 Dec Scandinavian Airlines direct
08 Dec - 15 Dec Scandinavian Airlines direct
29 Dec - 06 Jan Aer Lingus
31 Dec - 07 Jan Lufthansa
07 Dec - 14 Dec Scandinavian Airlines direct
17 Dec - 21 Jan Iberia
05 Dec - 12 Dec Scandinavian Airlines direct
11 Dec - 18 Dec Scandinavian Airlines direct
29 Dec - 01 Jan Scandinavian Airlines
31 Dec - 03 Jan SWISS
19 Dec - 05 Jan Scandinavian Airlines
26 Dec - 01 Jan Scandinavian Airlines
29 Dec - 05 Jan SWISS
26 Dec - 02 Jan Scandinavian Airlines

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

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