Quickest 2h 35min
There are 1 flight3 train companies operating 4 routes - S1, IC 311, EC 213, 651 from ZAG to KLU. The cheapest train costs $44 and is 2h 49min.
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There are 3 ways to travel from ZAG to KLU. 1 flight, 3 trains and 1 by car are possible between the two areas. The by car from ZAG to KLU is the cheapest. The by car from ZAG to KLU is the fastest. The train operated by running from Zagreb to Klagenfurt Hbf is the most convenient.
It's important to check each mode when booking your ticket so that you can find the best method for you. The cost of each type varies differently, so be sure to use Faretrotter to keep an eye out!