Cheapest one-way flights from Oslo to Sofia in September from $71

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

One-Way flights

07 Sep Norwegian direct
25 Sep Ryanair
19 Sep Air Serbia
05 Sep Air Serbia
04 Sep Norwegian direct
11 Sep Norwegian direct
14 Sep Norwegian direct
18 Sep Norwegian direct
28 Sep Norwegian direct
25 Sep Norwegian direct

Also check the deals for return 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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