AirHint found the following cheapest one-way flights from Bucharest (OTP) to Sofia (SOF) in October 2025 (see full year).
One-Way flights
| 16 Oct | Aegean Airlines | ||
| 09 Oct | Aegean Airlines | ||
| 22 Oct | Aegean Airlines | ||
| 21 Oct | Aegean Airlines | ||
| 11 Oct | Ryanair | ||
| 07 Oct | Ryanair | ||
| 25 Oct | Air Serbia | ||
| 24 Oct | Air Serbia | ||
| 07 Oct | TAROM | direct | |
| 11 Oct | TAROM | direct |
Also check the deals for return flights from Bucharest to Sofia in October.
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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