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

Return flights

19 May - 29 May	Ryanair
13 May - 20 May	KLM
15 May - 05 Jun	Air France
03 May - 10 May	KLM
01 May - 03 May	Air France
01 May - 04 May	Lufthansa	direct
05 May - 26 May	Lufthansa	direct
03 May - 10 May	Lufthansa	direct
19 May - 29 May	Lufthansa	direct
01 May - 03 May	Lufthansa	direct
13 May - 20 May	Lufthansa	direct
15 May - 05 Jun	Lufthansa	direct

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

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.

Book a cheap hotel in Oslo

Cheap car rent in Oslo

Cheapest return flights from Frankfurt to Oslo in May from 199€

Return flights