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

Return flights

10 Dec - 16 Dec	Ryanair
16 Dec - 18 Dec	Ryanair
01 Dec - 20 Jan	Ryanair
18 Dec - 21 Dec	Ryanair
18 Dec - 23 Dec	Ryanair
08 Dec - 12 Dec	Ryanair
13 Dec - 17 Dec	Air France
23 Dec - 30 Dec	LOT
28 Dec - 07 Jan	LOT
29 Dec - 07 Jan	LOT
13 Dec - 17 Dec	Lufthansa	direct
29 Dec - 03 Jan	Ryanair
29 Dec - 02 Jan	LOT
20 Dec - 26 Dec	Ryanair
21 Dec - 08 Jan	KLM
10 Dec - 16 Dec	Lufthansa	direct
01 Dec - 20 Jan	Lufthansa	direct
25 Dec - 10 Jan	airBaltic
20 Dec - 04 Jan	easyJet
27 Dec - 03 Jan	Lufthansa	direct

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 122€

Return flights