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

Return flights

24 Apr - 26 Apr	Ryanair
23 Apr - 27 Apr	Ryanair
09 Apr - 12 Apr	Ryanair
23 Apr - 26 Apr	Ryanair
24 Apr - 27 Apr	Ryanair
09 Apr - 13 Apr	Ryanair
10 Apr - 12 Apr	Ryanair
10 Apr - 13 Apr	Ryanair
16 Apr - 20 Apr	Ryanair
02 Apr - 05 Apr	LOT
30 Apr - 03 May	Ryanair
29 Apr - 03 May	Ryanair
29 Apr - 04 May	Ryanair
30 Apr - 04 May	Ryanair
08 Apr - 18 May	KLM
29 Apr - 04 May	Lufthansa	direct
30 Apr - 04 May	Lufthansa	direct
29 Apr - 03 May	Lufthansa	direct
30 Apr - 03 May	Lufthansa	direct
08 Apr - 18 May	Lufthansa	direct

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

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 April from 122€

Return flights