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

Return flights

07 Dec - 09 Dec	Wizz Air
02 Dec - 09 Dec	Norwegian
13 Dec - 17 Dec	Norwegian
15 Dec - 19 Dec	Scandinavian Airlines
16 Dec - 27 Dec	Scandinavian Airlines
12 Dec - 14 Dec	Scandinavian Airlines
25 Dec - 02 Jan	Wizz Air
12 Dec - 14 Dec	Scandinavian Airlines	direct
18 Dec - 28 Dec	Scandinavian Airlines
29 Dec - 02 Jan	Norwegian
18 Dec - 27 Dec	Wizz Air
19 Dec - 27 Dec	Wizz Air
26 Dec - 04 Jan	Scandinavian Airlines
25 Dec - 03 Jan	Scandinavian Airlines

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 $108

Return flights