AirHint found the following cheapest return flights from Oslo (OSL) to Dortmund (DTM) in December 2025 (see full year).
Return flights
| 09 Dec - 14 Dec | Wizz Air | ||
| 08 Dec - 11 Dec | Wizz Air | ||
| 09 Dec - 11 Dec | Wizz Air Malta | ||
| 10 Dec - 11 Dec | Wizz Air | ||
| 26 Dec - 29 Dec | Norwegian Air Sweden AOC |
Also check the deals for one-way flights from Oslo to Dortmund in December.
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