Cheap flights from Barcelona-El Prat Airport to San Francisco from £344

The month of January is, on average, the cheapest month to fly to San Francisco from Barcelona-El Prat Airport, with most prices found around £424. If you are unable to visit San Francisco during the month of January, then departing from Barcelona-El Prat Airport during the month February is also very affordable. Most momondo users find prices during this month for around £449.

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 £533 when searching weeks before you fly. 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 £471 on momondo.

There is only 1 cabin class available to choose from on Barcelona-El Prat Airport to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 8% on your flight if you consider stops on a Barcelona-El Prat Airport to San Francisco flight.

As of October 2026, prices for Barcelona-El Prat Airport to San Francisco flights are approximately 34% more expensive when compared to flights at the same time last year.

Historically, on average around 19% 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 136 minutes.

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

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, LEVEL have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.