Cheapest return flights from Boston to Copenhagen in December from 362€

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

Return flights

09 Dec - 15 Dec Lufthansa
10 Dec - 16 Dec Lufthansa
02 Dec - 16 Dec Iberia
04 Dec - 09 Dec SWISS
03 Dec - 09 Dec SWISS
08 Dec - 15 Dec Scandinavian Airlines direct
03 Dec - 10 Dec Icelandair
02 Dec - 16 Dec Scandinavian Airlines direct
09 Dec - 15 Dec Scandinavian Airlines direct
13 Dec - 20 Dec Icelandair

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