AirHint found the following cheapest one-way flights from Bilbao (BIO) to Sofia (SOF) in August 2025 (see full year).
One-Way flights
| 21 Aug | Air Europa | ||
| 22 Aug | Air Europa | ||
| 20 Aug | Wizz Air Malta | ||
| 09 Aug | Vueling Airlines | ||
| 17 Aug | Air Europa | ||
| 05 Aug | Wizz Air Malta | ||
| 08 Aug | Volotea | ||
| 01 Aug | Volotea | ||
| 06 Aug | Vueling Airlines | ||
| 07 Aug | Vueling Airlines |
Also check the deals for return flights from Bilbao to Sofia in August.
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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