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

Return flights

29 Jul - 04 Aug	Wizz Air
29 Jul - 05 Aug	Wizz Air
29 Jul - 04 Aug	Wizz Air	direct
31 Jul - 04 Aug	Wizz Air	direct
31 Jul - 19 Aug	Wizz Air	direct
29 Jul - 19 Aug	Wizz Air	direct
28 Jul - 07 Aug	Wizz Air	direct
28 Jul - 29 Jul	Wizz Air	direct
31 Jul - 05 Aug	Wizz Air	direct
28 Jul - 05 Aug	Wizz Air	direct
29 Jul - 05 Aug	Wizz Air	direct
27 Jul - 31 Jul	Wizz Air
31 Jul - 31 Jul	Wizz Air

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

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 return flights from Basel to Sofia in July from 163€

Return flights