AirHint found the following cheapest return flights from Duesseldorf (DUS) to Ljubljana (LJU) in May 2026 (see full year).
Return flights
| 15 May - 17 May | Air Serbia | ||
| 12 May - 19 May | SWISS | ||
| 30 May - 07 Jun | Air Serbia | ||
| 22 May - 25 May | LOT | ||
| 12 May - 17 May | SWISS | ||
| 13 May - 17 May | Lufthansa |
Also check the deals for one-way flights from Duesseldorf to Ljubljana in May.
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