AirHint found the following cheapest return flights from Ljubljana (LJU) to Copenhagen (CPH) in April 2026 (see full year).
Return flights
| 29 Apr - 02 May | Air Serbia | ||
| 24 Apr - 02 May | Air Serbia | ||
| 24 Apr - 29 Apr | Lufthansa | ||
| 30 Apr - 03 May | airBaltic |
Also check the deals for one-way flights from Ljubljana to Copenhagen in April.
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