AirHint found the following cheapest return flights from Rome (FCO) to Oslo (OSL) in August 2025 (see full year).

Return flights

31 Aug - 07 Sep	Wizz Air Malta
20 Aug - 24 Sep	Norwegian
25 Aug - 07 Sep	Wizz Air Malta
28 Aug - 07 Sep	Ryanair
31 Aug - 21 Sep	Norwegian	direct
26 Aug - 05 Sep	Wizz Air Malta
27 Aug - 04 Sep	Wizz Air Malta
28 Aug - 16 Sep	Norwegian	direct
28 Aug - 14 Sep	Norwegian	direct
28 Aug - 07 Sep	Norwegian	direct
21 Aug - 30 Aug	LOT
25 Aug - 30 Aug	LOT
27 Aug - 30 Aug	LOT
23 Aug - 26 Aug	Norwegian
23 Aug - 31 Aug	Norwegian
28 Aug - 31 Aug	Norwegian
25 Aug - 31 Aug	Norwegian
29 Aug - 31 Aug	Norwegian
27 Aug - 31 Aug	Norwegian
22 Aug - 31 Aug	Norwegian

Also check the deals for one-way flights from Rome to Oslo in August.

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 August from $139

Return flights