Cheapest return flights from Basel to Sofia in September from $52

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

Return flights

15 Sep - 25 Sep Wizz Air direct
16 Sep - 25 Sep Wizz Air direct
08 Sep - 25 Sep Wizz Air direct
11 Sep - 25 Sep Wizz Air direct
15 Sep - 04 Oct Wizz Air direct
15 Sep - 16 Sep Wizz Air direct
15 Sep - 18 Sep Wizz Air direct
20 Sep - 25 Sep Wizz Air direct
09 Sep - 25 Sep Wizz Air direct
15 Sep - 02 Oct Wizz Air direct
11 Sep - 15 Sep Wizz Air direct
13 Sep - 25 Sep Wizz Air direct
16 Sep - 04 Oct Wizz Air direct
25 Sep - 14 Oct Wizz Air direct
16 Sep - 07 Oct Wizz Air direct
25 Sep - 16 Oct Wizz Air direct
16 Sep - 02 Oct Wizz Air direct
20 Sep - 04 Oct Wizz Air direct
11 Sep - 02 Oct Wizz Air direct
13 Sep - 04 Oct Wizz Air direct

Also check the deals for one-way flights from Basel 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.

Book a cheap hotel in Sofia

Cheap car rent in Sofia

Feel free to contact us with any feedback or request another flight research.