Cheapest return flights from Oslo to Sofia in September from $107

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

Return flights

21 Sep - 25 Sep Norwegian direct
21 Sep - 02 Oct Norwegian direct
21 Sep - 09 Oct Norwegian direct
25 Sep - 02 Oct Norwegian direct
14 Sep - 25 Sep Norwegian direct
14 Sep - 18 Sep Norwegian direct
25 Sep - 09 Oct Norwegian direct
14 Sep - 02 Oct Norwegian direct
15 Sep - 18 Sep Ryanair
13 Sep - 18 Sep Ryanair
16 Sep - 18 Sep Norwegian
28 Sep - 16 Oct Wizz Air
16 Sep - 17 Sep Ryanair
16 Sep - 19 Sep Ryanair
15 Sep - 17 Sep Wizz Air
11 Sep - 25 Sep Norwegian direct
28 Sep - 01 Oct Wizz Air
28 Sep - 02 Oct Norwegian direct
28 Sep - 16 Oct Norwegian direct
28 Sep - 09 Oct Norwegian direct

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