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

Return flights

31 Dec - 10 Jan	Ryanair
31 Dec - 05 Jan	Ryanair
30 Dec - 08 Jan	Ryanair
22 Dec - 06 Jan	Ryanair
22 Dec - 07 Jan	Ryanair
22 Dec - 29 Dec	Ryanair
30 Dec - 04 Jan	Ryanair
29 Dec - 09 Jan	Ryanair
30 Dec - 05 Jan	Ryanair
28 Dec - 30 Dec	Ryanair
21 Dec - 07 Jan	Scandinavian Airlines
23 Dec - 30 Dec	Finnair
25 Dec - 01 Jan	KLM
19 Dec - 23 Dec	Scandinavian Airlines
25 Dec - 31 Dec	KLM
22 Dec - 31 Dec	Ryanair
19 Dec - 23 Dec	Lufthansa	direct
24 Dec - 31 Dec	KLM
23 Dec - 30 Dec	Lufthansa	direct
25 Dec - 29 Dec	Scandinavian Airlines

Also check the deals for one-way flights from Frankfurt to Oslo 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 Frankfurt to Oslo in December from 156€

Return flights