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

Return flights

31 Oct - 03 Nov	Ryanair
06 Oct - 15 Oct	Ryanair
30 Oct - 03 Nov	Ryanair
23 Oct - 27 Oct	Ryanair
01 Oct - 08 Oct	Ryanair
05 Oct - 08 Oct	Ryanair
09 Oct - 12 Oct	Ryanair
06 Oct - 18 Oct	Wizz Air
24 Oct - 28 Oct	Ryanair
01 Oct - 05 Oct	easyJet
24 Oct - 27 Oct	Ryanair
01 Oct - 06 Oct	easyJet
30 Oct - 02 Nov	Ryanair
26 Oct - 01 Nov	Ryanair
31 Oct - 02 Nov	Ryanair
29 Oct - 02 Nov	KLM
26 Oct - 01 Nov	Lufthansa	direct
29 Oct - 02 Nov	Lufthansa	direct
25 Oct - 01 Nov	Lufthansa	direct
30 Oct - 02 Nov	Lufthansa	direct

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

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 October from 123€

Return flights