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

Return flights

28 Aug - 04 Sep	Ryanair
29 Aug - 01 Sep	Ryanair
22 Aug - 26 Aug	Ryanair
30 Aug - 08 Sep	Ryanair
25 Aug - 04 Sep	Ryanair
27 Aug - 30 Aug	Ryanair
29 Aug - 31 Aug	Ryanair
26 Aug - 01 Sep	Ryanair
25 Aug - 06 Sep	Ryanair
19 Aug - 23 Aug	Ryanair
25 Aug - 01 Sep	Ryanair
26 Aug - 31 Aug	Ryanair
25 Aug - 29 Aug	Ryanair
19 Aug - 22 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
27 Aug - 31 Aug	Ryanair
22 Aug - 24 Aug	Ryanair
23 Aug - 01 Sep	Ryanair
11 Aug - 02 Sep	Ryanair

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 $187

Return flights