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

Return flights

27 Aug - 07 Sep	Wizz Air
06 Aug - 10 Aug	Wizz Air
06 Aug - 13 Aug	Wizz Air
27 Aug - 07 Sep	Norwegian	direct
27 Aug - 29 Aug	Air Serbia
06 Aug - 09 Aug	Wizz Air
08 Aug - 12 Aug	Wizz Air
13 Aug - 27 Aug	Wizz Air
25 Aug - 29 Aug	Wizz Air
04 Aug - 12 Aug	Wizz Air
27 Aug - 11 Sep	Norwegian	direct
27 Aug - 04 Sep	Norwegian	direct
19 Aug - 31 Aug	LOT
27 Aug - 30 Aug	Norwegian	direct
23 Aug - 04 Sep	LOT
23 Aug - 07 Sep	Norwegian	direct
01 Aug - 15 Sep	Ryanair
23 Aug - 11 Sep	Norwegian	direct
23 Aug - 04 Sep	Norwegian	direct
17 Aug - 07 Sep	Norwegian	direct

Also check the deals for one-way flights from Sofia 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 Sofia to Oslo in August from $150

Return flights