For the cheapest flights to Vienna book 30 days before departure.
The most popular airlines on the route Prague - Vienna: Germanwings (4U), Ukraine International (PS), Air Berlin (AB).
The cheapest flights are on the route Ruzyne (PRG) - Schwechat (VIE).
Direct flights last about 0h 50min.
Direct flights available 2 days a week - Wednesday, Thursday.
Direct flights: Austrian (OS).