AirHint found the following cheapest return flights from Bucharest (OTP) to Sofia (SOF) in November 2025 (see full year).
Return flights
| 30 Nov - 04 Dec | Ryanair | ||
| 29 Nov - 02 Dec | Air Serbia | ||
| 30 Nov - 01 Dec | Ryanair | ||
| 29 Nov - 30 Nov | Ryanair |
Also check the deals for one-way flights from Bucharest to Sofia in November.
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