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

Return flights

09 Dec - 14 Dec	Scandinavian Airlines
08 Dec - 14 Dec	Scandinavian Airlines
13 Dec - 17 Dec	Scandinavian Airlines
11 Dec - 16 Dec	Scandinavian Airlines
12 Dec - 16 Dec	Scandinavian Airlines
11 Dec - 15 Dec	Scandinavian Airlines
10 Dec - 15 Dec	Scandinavian Airlines
10 Dec - 16 Dec	Scandinavian Airlines
11 Dec - 14 Dec	Scandinavian Airlines
10 Dec - 14 Dec	Scandinavian Airlines
21 Dec - 07 Jan	Norwegian

Also check the deals for one-way flights from Trondheim to Copenhagen 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 Trondheim to Copenhagen in December from 143€

Return flights