AirHint found the following cheapest return flights from Frankfurt (FRA) to Oslo (OSL) in January 2026 (see full year).

Return flights

21 Jan - 24 Jan	Ryanair
28 Jan - 01 Feb	Ryanair
21 Jan - 26 Jan	Ryanair
15 Jan - 20 Jan	Ryanair
11 Jan - 15 Jan	Ryanair
31 Jan - 06 Feb	Ryanair
14 Jan - 18 Jan	Ryanair
23 Jan - 26 Jan	Ryanair
17 Jan - 24 Jan	Ryanair
23 Jan - 27 Jan	Ryanair
25 Jan - 29 Jan	Ryanair
23 Jan - 25 Jan	Ryanair
30 Jan - 02 Feb	Ryanair
31 Jan - 05 Feb	Ryanair
25 Jan - 02 Feb	Ryanair
30 Jan - 01 Feb	Ryanair
29 Jan - 02 Feb	Ryanair
30 Jan - 04 Feb	Ryanair
29 Jan - 01 Feb	Ryanair
26 Jan - 04 Feb	KLM

Also check the deals for one-way flights from Frankfurt to Oslo in January.

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 January from 110€

Return flights