Cheapest return flights from Basel to Sofia in September from $116

Best time to book flights for Basel (BSL) to Sofia (SOF) flights at AirHint

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

Return flights

04 Sep - 25 Sep Wizz Air direct
09 Sep - 25 Sep Wizz Air direct
11 Sep - 25 Sep Wizz Air direct
18 Sep - 25 Sep Wizz Air direct
23 Sep - 25 Sep Wizz Air direct
04 Sep - 18 Sep Wizz Air direct
09 Sep - 18 Sep Wizz Air direct
11 Sep - 18 Sep Wizz Air direct
02 Sep - 18 Sep Wizz Air direct
04 Sep - 16 Sep Wizz Air direct
23 Sep - 11 Oct Wizz Air direct
25 Sep - 11 Oct Wizz Air direct
23 Sep - 14 Oct Wizz Air direct
25 Sep - 14 Oct Wizz Air direct
20 Sep - 11 Oct Wizz Air direct
27 Sep - 18 Oct Wizz Air direct
27 Sep - 11 Oct Wizz Air direct
27 Sep - 14 Oct Wizz Air direct

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

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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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