Cheapest return flights from Oslo to Trondheim in December from $99

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

Return flights

02 Dec - 07 Dec Norwegian direct
02 Dec - 06 Dec Norwegian direct
02 Dec - 08 Dec Norwegian direct
02 Dec - 13 Dec Norwegian direct
02 Dec - 14 Dec Norwegian direct
02 Dec - 16 Dec Norwegian direct
03 Dec - 07 Dec Norwegian direct
03 Dec - 06 Dec Norwegian direct
03 Dec - 08 Dec Norwegian direct
03 Dec - 13 Dec Norwegian direct
11 Dec - 01 Jan Norwegian direct
12 Dec - 01 Jan Norwegian direct
15 Dec - 01 Jan Norwegian direct
15 Dec - 02 Jan Norwegian direct
16 Dec - 01 Jan Norwegian direct
16 Dec - 02 Jan Norwegian direct
17 Dec - 01 Jan Norwegian direct
17 Dec - 02 Jan Norwegian direct
31 Dec - 01 Jan Norwegian direct
31 Dec - 02 Jan Norwegian direct

Also check the deals for one-way flights from Oslo to Trondheim 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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