Cheapest return flights from Boston to Copenhagen in December from 375€

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 Scandinavian Airlines direct
03 Dec - 10 Dec Icelandair
22 Dec - 17 Jan Icelandair
18 Dec - 25 Dec Icelandair
28 Dec - 04 Jan Icelandair
22 Dec - 02 Jan Icelandair
13 Dec - 20 Dec Icelandair
13 Dec - 20 Dec Scandinavian Airlines direct
22 Dec - 02 Jan Scandinavian Airlines direct

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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