AirHint found the following cheapest one-way flights from Basel (BSL) to Sofia (SOF) in December 2025 (see full year).

One-Way flights

01 Dec	Wizz Air	direct
31 Dec	Wizz Air	direct
12 Dec	Wizz Air	direct
14 Dec	Wizz Air	direct
28 Dec	Wizz Air	direct
15 Dec	Wizz Air	direct
29 Dec	Wizz Air	direct
17 Dec	Wizz Air	direct
22 Dec	Austrian Airlines
19 Dec	Wizz Air	direct

Also check the deals for return flights from Basel to Sofia in December.

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 Basel to Sofia in December from 63€

One-Way flights