Cheap flights from California to Barcelona from $318

The cheapest month to fly to Barcelona-El Prat Airport from California is in September. Flight prices, which tend to average around $592, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Barcelona-El Prat Airport from California during October instead. Flights to Barcelona-El Prat Airport in October, while not as cheap as those in September, still average around $602.

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Tuesday when prices can be found for as low as $673. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $830. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

Flying to Barcelona-El Prat Airport from California in the evening is the least expensive time of day to depart. momondo users have found prices as low as $788 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $966 on average. Flights to Barcelona-El Prat Airport from California in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Barcelona-El Prat Airport from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $776 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from California for as low as $643 on momondo.

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

British Airways, American Airlines, and Air Canada are the most popular carriers operating from California to Barcelona-El Prat

Iberia, United Airlines and LEVEL are the top three most popular airlines that fly to Barcelona-El Prat Airport from California according to our data. Iberia is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 22 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.

The number of flights available between California and Barcelona-El Prat Airport is 20 per week as of April 2026. The most frequent departure day is Wed, with 25% of weekly flights leaving on this day.

Flight times vary depending on what airport in California you fly out of and what airport in Barcelona-El Prat Airport you fly into. For example, flying from San Francisco to Barcelona-El Prat Airport takes 11h 20m on average. On the other hand, flying from Los Angeles to Barcelona-El Prat Airport takes 11h 40m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.