For the cheapest flights   Rome Fiumicino book 38 days before departure.
The most popular airlines on the route Vienna Schwechat - Rome Fiumicino: Germanwings (4U), Air Berlin (AB), Austrian (OS).
Direct flights last about 1h 34min.
Direct flights are available 7 days a week.
Direct flights: Germanwings (4U), Air Berlin (AB), Alitalia (AZ).