Cheap flights from Barcelona-El Prat Airport to San Francisco from $349

If you aren’t able to travel to San Francisco during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $581.

The cheapest day to depart from Barcelona-El Prat Airport to San Francisco is on a Tuesday when prices can be found for as low as $684. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $799.

Our data shows that the cheapest Barcelona-El Prat Airport to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $685. Flights in the afternoon are often more expensive with an average ticket price of $763.

Fly from Barcelona-El Prat to San Francisco for the best Barcelona-El Prat - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Barcelona-El Prat Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $664 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Barcelona-El Prat Airport for as low as $603 on momondo.

There are 3 cabin classes available to choose from on Barcelona-El Prat to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Barcelona-El Prat Airport to San Francisco.

As of February 2026, prices for Barcelona-El Prat Airport to San Francisco flights are approximately 21% more expensive when compared to flights at the same time last year.

TAP AIR PORTUGAL, JetBlue, and Finnair are the most popular carriers operating from Barcelona-El Prat to San Francisco

United Airlines, Lufthansa and Iberia are the top three most popular airlines that fly to San Francisco from Barcelona-El Prat Airport according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 10 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% of flights between Barcelona and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 169 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, LEVEL have had the least number of delays on this route over the last 12 months; with about 14% of their flights experiencing any sort of delay.

Frankfurt am Main (FRA) was the most common stop: 30% of momondo users choosing 1-stop flights on this route connected there.

Flights via Amsterdam (AMS) offer the lowest average round-trip price of $540.

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 14h 50m.

Amsterdam (AMS) has the shortest average layover time for this route: 1h 10m.