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

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

02 Sep - 20 Sep Wizz Air direct
02 Sep - 13 Sep Wizz Air direct
30 Sep - 04 Oct Wizz Air direct
13 Sep - 20 Sep Ryanair
01 Sep - 21 Sep Lufthansa
07 Sep - 14 Sep Wizz Air
13 Sep - 27 Sep Wizz Air direct
13 Sep - 20 Sep 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.

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