Cheapest return flights from Klagenfurt to Vienna in March from $143

AirHint found the following cheapest return flights from Klagenfurt (KLU) to Vienna (VIE) in March 2026 (see full year).

Return flights

16 Mar - 20 Mar Ryanair
21 Mar - 29 Mar Austrian Airlines direct
26 Mar - 29 Mar Austrian Airlines direct
16 Mar - 20 Mar Austrian Airlines direct
20 Mar - 14 Apr Austrian Airlines direct
07 Mar - 14 Mar Austrian Airlines direct
13 Mar - 15 Mar Austrian Airlines direct
06 Mar - 09 Mar Austrian Airlines direct

Also check the deals for one-way flights from Klagenfurt to Vienna in March.

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