Cheapest return flights from Sofia to Oslo in September from $130

Best time to book flights for Sofia (SOF) to Oslo (OSL) flights at AirHint

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

Return flights

25 Sep - 05 Oct Norwegian direct
25 Sep - 12 Oct Norwegian direct
07 Sep - 11 Sep Air Serbia
14 Sep - 05 Oct Norwegian direct
25 Sep - 28 Sep Norwegian
21 Sep - 05 Oct Norwegian direct
21 Sep - 12 Oct Norwegian direct
25 Sep - 28 Sep Norwegian direct
22 Sep - 25 Sep Air Serbia
14 Sep - 18 Sep Norwegian direct
07 Sep - 11 Sep Norwegian direct
14 Sep - 28 Sep Norwegian direct
07 Sep - 18 Sep Norwegian direct
21 Sep - 28 Sep Norwegian direct
07 Sep - 28 Sep Norwegian direct
18 Sep - 05 Oct Norwegian direct

Also check the deals for one-way flights from Sofia to Oslo in September.

Skyscanner

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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