Cheapest return flights from Boston to Copenhagen in December from $430

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

Return flights

11 Dec - 25 Dec Scandinavian Airlines direct
10 Dec - 17 Dec Icelandair
30 Dec - 06 Jan Icelandair
16 Dec - 25 Dec Air Canada
25 Dec - 08 Jan Icelandair
22 Dec - 05 Jan Icelandair
04 Dec - 27 Dec Air Canada
21 Dec - 10 Jan Icelandair
22 Dec - 17 Jan Icelandair
15 Dec - 22 Dec Icelandair
25 Dec - 01 Jan Icelandair
20 Dec - 10 Jan Icelandair
19 Dec - 04 Jan Icelandair
15 Dec - 22 Dec Scandinavian Airlines direct
30 Dec - 06 Jan Scandinavian Airlines direct
04 Dec - 27 Dec Scandinavian Airlines direct
25 Dec - 08 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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