AirHint found the following cheapest return flights from Sofia (SOF) to Oslo (OSL) in May 2026 (see full year).
Return flights
| 15 May - 18 May | Ryanair | ||
| 11 May - 13 May | Ryanair | ||
| 21 May - 25 May | LOT | ||
| 23 May - 24 May | Ryanair | ||
| 22 May - 25 May | LOT | ||
| 26 May - 30 May | Lufthansa | ||
| 26 May - 31 May | Lufthansa |
Also check the deals for one-way flights from Sofia to Oslo in May.
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