EXPIRED With TAP and it’s new A330-900NEO, dates into 2021. How to Book The cheapest fares can be found via OTA’s, link with prices below. For the outbound flight you will likely have an overnight stay in Lisbon. Roundtrip 1190€   Dublin to SFO oneway  610€   Travel Dates Availability from December until June 2021. The best days to look for departure dates are Sundays and Fridays, from April on also on Mondays amd Wednesdays For the return flight, check for Monday  Thursday or Saturday flights.   Fare Rules Stopover restrictions ORIGINATING EUROPE – 2 STOPOVERS PERMITTED ON THE PRICING UNIT LIMITED TO 1 FREE AND 1 AT EUR 75.00.   Note: All deals are personally verified and bookable directly with airlines or reputable travel partners. Prices and availability can change quickly, we never sell flights ourselves.