AirHint found the following cheapest return flights from Vienna (VIE) to Klagenfurt (KLU) in May 2026 (see full year).
Return flights
| 03 May - 10 May | Austrian Airlines | direct | |
| 01 May - 02 May | Austrian Airlines | direct | |
| 01 May - 03 May | Austrian Airlines | direct | |
| 01 May - 01 May | Austrian Airlines |
Also check the deals for one-way flights from Vienna to Klagenfurt in May.
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