Cheap flights from San Francisco to Vienna for only $640 return trip, May travel

A very good fare to Vienna, Austria. It is around $340 cheaper than usual. Take advantage and book now.

Departure: San Francisco

Destination: Vienna, Austria

Dates: Availability in May

Example dates:  05/02 to 05/09 and other dates

Stops: 1 Stop in Zurich

Airline: Swiss. Free carry-on hand baggage and a personal item.

Prices were accurate at the time of writing this post. However, airfares can change by the minute. If you like the fare, book it asap.