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

One-Way flights

01 Sep	Wizz Air	direct
29 Sep	Vueling Airlines
25 Sep	Wizz Air	direct
04 Sep	Ryanair	direct
10 Sep	Wizz Air	direct
17 Sep	Wizz Air	direct
15 Sep	Wizz Air	direct
11 Sep	Wizz Air	direct
03 Sep	Wizz Air	direct
30 Sep	Wizz Air Malta

Also check the deals for return flights from Barcelona to Sofia in September.

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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Cheapest one-way flights from Barcelona to Sofia in September from 30€

One-Way flights