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

Return flights

21 May - 27 May	Norwegian
08 May - 10 May	Norwegian	direct
08 May - 11 May	Norwegian	direct
08 May - 17 May	Norwegian	direct
06 May - 10 May	Norwegian	direct
06 May - 17 May	Norwegian	direct
06 May - 11 May	Norwegian	direct
12 May - 17 May	Norwegian	direct
01 May - 05 May	Norwegian Air Sweden AOC
08 May - 09 May	Norwegian	direct
21 May - 03 Jun	Norwegian
29 May - 07 Jun	Norwegian
30 May - 03 Jun	Wizz Air Malta

Also check the deals for one-way flights from Rome 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.

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Cheapest return flights from Rome to Oslo in May from $127

Return flights