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Cheap Flights from Barcelona to San Francisco

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Compare Barcelona to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

Book the best San Francisco International fare with no extra fees

Flight deals from Barcelona to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Barcelona to San Francisco International? Find the lowest prices on one-way and return tickets right here.
San Francisco.$749 per passenger.Departing Mon, 13 Oct, returning Tue, 21 Oct.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Barcelona on Mon, 13 Oct, arriving in San Francisco International.Inbound indirect flight with TAP Air Portugal, departs from San Francisco International on Tue, 21 Oct, arriving in Barcelona.Price includes taxes and charges.From $749, select.
San Francisco.$750 per passenger.Departing Tue, 2 Sep, returning Tue, 16 Sep.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Barcelona on Tue, 2 Sep, arriving in San Francisco International.Inbound indirect flight with TAP Air Portugal, departs from San Francisco International on Tue, 16 Sep, arriving in Barcelona.Price includes taxes and charges.From $750, select.
San Francisco.$752 per passenger.Departing Tue, 23 Sep, returning Thu, 2 Oct.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Barcelona on Tue, 23 Sep, arriving in San Francisco International.Inbound indirect flight with TAP Air Portugal, departs from San Francisco International on Thu, 2 Oct, arriving in Barcelona.Price includes taxes and charges.From $752, select.
San Francisco.$753 per passenger.Departing Thu, 12 Jun, returning Tue, 23 Sep.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Barcelona on Thu, 12 Jun, arriving in San Francisco International.Inbound indirect flight with TAP Air Portugal, departs from San Francisco International on Tue, 23 Sep, arriving in Barcelona.Price includes taxes and charges.From $753, select.
San Francisco.$753 per passenger.Departing Wed, 29 Oct, returning Sat, 8 Nov.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Barcelona on Wed, 29 Oct, arriving in San Francisco International.Inbound indirect flight with TAP Air Portugal, departs from San Francisco International on Sat, 8 Nov, arriving in Barcelona.Price includes taxes and charges.From $753, select.
San Francisco.$753 per passenger.Departing Fri, 9 Jan, returning Sat, 24 Jan.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Barcelona on Fri, 9 Jan, arriving in San Francisco International.Inbound indirect flight with TAP Air Portugal, departs from San Francisco International on Sat, 24 Jan, arriving in Barcelona.Price includes taxes and charges.From $753, select.
San Francisco.$753 per passenger.Departing Fri, 7 Nov, returning Fri, 14 Nov.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Barcelona on Fri, 7 Nov, arriving in San Francisco International.Inbound indirect flight with TAP Air Portugal, departs from San Francisco International on Fri, 14 Nov, arriving in Barcelona.Price includes taxes and charges.From $753, select.
San Francisco.$753 per passenger.Departing Tue, 26 Aug, returning Mon, 1 Sep.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Barcelona on Tue, 26 Aug, arriving in San Francisco International.Inbound indirect flight with TAP Air Portugal, departs from San Francisco International on Mon, 1 Sep, arriving in Barcelona.Price includes taxes and charges.From $753, select.

Find the cheapest month to fly from Barcelona to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Barcelona to San Francisco International flights are currently cheapest in October.
Mar
from $922
Apr
from $866
May
from $835
Jun
from $896
Jul
from $896
Aug
from $763
Sep
from $750
Oct
from $749
Nov
from $753
Dec
from $754
Jan
from $753
Feb
from $753

Direct flights from Barcelona to San Francisco International

Barcelona to San Francisco International: Alternative routes

Compare routes from Barcelona to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Barcelona to San Francisco: Flight information

The things to know before you go.
Cheapest flight found$749
Cheapest month to flyOctober
Average flight time12 hrs, 55 mins
Most popular airlineUnited
Average flights per week42

Finding cheap flights from Barcelona to San Francisco International: Frequently asked questions

The best price we found for a return flight from Barcelona to San Francisco International is $749. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
12 hours and 55 minutes is the average flight time from Barcelona to San Francisco International.
United, Lufthansa and Alaska Airlines fly direct from Barcelona to San Francisco International.
As of March 2025, there are 42 flights per week flying from Barcelona to San Francisco International.
The cheapest month to fly from Barcelona to San Francisco International is usually March 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Barcelona Airport to San Francisco International Airport on Monday, 13 October 2025.
Yes – the average flight time is 12 hours and 55 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, TAP Air Portugal and LEVEL offer the cheapest flight tickets to San Francisco International.

Flying from Barcelona-El Prat Airport (BCN) to San Francisco International Airport (SFO): what you need to know

  • A direct flight from Barcelona-El Prat Airport to San Francisco International Airport takes on average 12 hours 32 minutes. The timezone in San Francisco is UTC-7, so it's 8 hours behind Barcelona.

  • Every week, there are 12 flights from Barcelona-El Prat Airport to San Francisco International Airport. If you want to get going as early as possible, select the 14:00 Iberia flight. If you'd rather make the most of your day before flying, the latest flight from BCN to SFO is 22:50 with Iberia.

  • If you're travelling during a popular month like July, be at the airport even earlier. It's smart to arrive up to four hours before an international flight and two hours ahead of a domestic departure. Security lines will be longer during high seasons like Thanksgiving, Christmas and New Year.

  • Travelling to San Francisco (and seeing more of United States!) is straightforward with Iberia. This popular carrier runs direct flights from Barcelona-El Prat Airport to San Francisco International Airport.

  • If you prefer a stopover for your flight from Barcelona-El Prat Airport to San Francisco International Airport, simply uncheck 'Direct flights only' and explore your options. These are the top stopovers between BCN and SFO:

    • London Heathrow Airport

    • Amsterdam Airport Schiphol

    • Frankfurt Airport

  • Before booking your cheap ticket from BCN to SFO, check if you need a visa to enter United States. Travel document and visa requirements can vary and are updated often. For the most up-to-date information, get in touch with the nearest embassy or consulate of the country you're flying to.

How to find the cheapest flights from Barcelona-El Prat Airport (BCN) to San Francisco International Airport (SFO)

  • $364 is currently the lowest price for a one-way ticket from Barcelona-El Prat Airport to San Francisco International Airport. A return flight starts from $749. These prices may change depending on availability and demand.

  • Score cheap flight tickets from BCN to SFO by booking 1 month ahead. According to our research, that's the sweet spot for picking up a bargain.

  • Schedule your trip for September. That's the cheapest month for tickets from Barcelona-El Prat Airport to San Francisco International Airport. If you're flexible on when you fly, use the 'Whole month' tool to see the lowest airfare across every month.

  • Finding a cheap ticket from BCN to SFO is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when the price has dropped.

  • Play around with filters to find the right trip for you. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Barcelona-El Prat Airport to San Francisco International Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Barcelona-El Prat Airport (BCN)

  • Located around 18 kilometres from central Barcelona, Barcelona-El Prat Airport can be reached in about 24 minutes by car (depending on traffic). The journey by public transport is roughly 33 minutes.

  • Looking for a handy hotel near BCN? If you're boarding an early flight from Barcelona-El Prat Airport to San Francisco International Airport, these stays will put you moments from your departure lounge:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • San Francisco International Airport to central San Francisco is about 20 minutes in a car. It's approximately 21 kilometres away. See what options are available, such as cabs, car rentals or ride-sharing.

  • It takes roughly 47 minutes when travelling by public transport.

When to fly to San Francisco International Airport (SFO)

  • August is the busiest month for flights from Barcelona-El Prat Airport to San Francisco International Airport. To escape the crowds, visit San Francisco in February.

  • Book your flight from Barcelona-El Prat Airport to San Francisco International Airport for September if you'd like to visit San Francisco during its warmest month. You can expect temperatures of between 12ºC and 22ºC.

  • Search for cheap flight tickets from BCN to SFO in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 6ºC and 16ºC on average.

More about San Francisco

  • After locking in your flights from BCN to SFO, you'll need to find a place to stay in San Francisco. Make one of these accommodation options your base for exploring this exciting city:

  • All great adventures should include a little sightseeing. Golden Gate Bridge, Alcatraz Island and Lombard Street are attractions you won't want to skip in San Francisco.

Complete your San Francisco trip with hotels and a car rental

  • You've got your cheap ticket to San Francisco International Airport — now it's time to find a place to stay, and maybe even a set of wheels. We've compared prices across hundreds of companies to bring you the best hotels and car rental deals in San Francisco.

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Plan the rest of your trip from Barcelona to San Francisco

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.