AirHint found the following cheapest return flights from Cologne (CGN) to Oslo (OSL) in April 2026 (see full year).
Return flights
| 23 Apr - 27 Apr | Lufthansa | ||
| 03 Apr - 06 Apr | Wizz Air | ||
| 30 Apr - 04 May | Lufthansa | ||
| 02 Apr - 05 Apr | Ryanair | ||
| 02 Apr - 08 Apr | Lufthansa |
Also check the deals for one-way flights from Cologne to Oslo in April.
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