AirHint found the following cheapest return flights from Basel (BSL) to Oslo (OSL) in December 2026 (see full year).
Return flights
| 24 Dec - 28 Dec | KLM | ||
| 20 Dec - 27 Dec | Lufthansa | ||
| 26 Dec - 31 Dec | Lufthansa |
Also check the deals for one-way flights from Basel to Oslo in December.
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