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

Return flights

13 Apr - 21 Apr	Ryanair
20 Apr - 26 Apr	Ryanair
15 Apr - 18 Apr	Ryanair
19 Apr - 24 Apr	Wizz Air Malta
13 Apr - 18 Apr	Ryanair
15 Apr - 25 Apr	Ryanair
18 Apr - 23 Apr	Ryanair
15 Apr - 21 Apr	Ryanair
28 Apr - 05 May	Ryanair
17 Apr - 20 Apr	Ryanair
06 Apr - 12 Apr	Ryanair
30 Apr - 03 May	Ryanair
30 Apr - 04 May	Ryanair
08 Apr - 18 May	Lufthansa
28 Apr - 05 May	Lufthansa	direct
30 Apr - 04 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 82€

Return flights