Round trip flights from San Francisco to Barcelona for $554

American Airlines and partners British Airways and Expedia are offering round trip airfares from San Francisco to Barcelona for $554. These fares are basic economy, allowing only a personal item and a carry-on; no seat selection or changes are permitted. The deal covers travel from November through April 2027 with various departure and return date options. This deal offers a significant price drop compared to typical fares on this route, making it a noteworthy option for light travelers planning a European getaway during the upcoming season.