San Francisco to Vienna is on sale for as low as $378 round trip flying Finnair nonstop SFO to Helsinki, then connecting to Vienna for travel in April and May 2019. These low ticket prices are available through American Airlines and British Airways.
British Airways ticket for Finnair flights
San Francisco SFO – Helsinki HEL – Vienna VIE – Helsinki HEL – SFO
$377.84 round trip Monday April 15 – Wed April 24
