Cheap Flights from San Francisco International to Barcelona

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Compare San Francisco International to Barcelona flight deals

Find the cheapest month or even day of the year to fly to Barcelona

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Flight deals from San Francisco International to Barcelona

Looking for a cheap last-minute deal or the best return flight from San Francisco International to Barcelona? Find the lowest prices on one-way and return tickets right here.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Barcelona flights are currently cheapest in September.

Direct flights from San Francisco International to Barcelona

San Francisco International to Barcelona: Alternative routes

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

San Francisco to Barcelona: Flight information

The things to know before you go.
Cheapest flight foundR 3,845
Cheapest month to flyOctober
Average flight time11 hrs, 41 mins
Most popular airlineUnited
Average flights per week44

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

The best price we found for a return flight from San Francisco International to Barcelona is R 7,752. 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.
11 hours and 40 minutes is the average flight time from San Francisco International to Barcelona.
United, Lufthansa and Alaska Airlines fly direct from San Francisco International to Barcelona.
As of April 2025, there are 44 flights per week flying from San Francisco International to Barcelona.
The cheapest month to fly from San Francisco International to Barcelona is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Barcelona Airport on Saturday, 20 September 2025.
Yes – the average flight time is 11 hours and 40 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 Barcelona 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 Barcelona is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, LEVEL offers the cheapest flight tickets to Barcelona.

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

  • 11 hours 42 minutes is the average duration of a direct flight from San Francisco International Airport to Barcelona-El Prat Airport. Barcelona is 8 hours ahead of San Francisco and is in the UTC+1 timezone.

  • Each week, there are 10 flights from San Francisco International Airport to Barcelona-El Prat Airport. If you prefer to be on board early, jump on the 14:00 Iberia flight. If you're keen to make the most of your time before you fly, the latest flight from SFO to BCN is 22:50 with Iberia.

  • During popular months such as August, it's best to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you travel during a peak period in general.

  • United Airlines is your ticket to exploring Barcelona (and perhaps some other great parts of Spain!). Choose from the direct flights from San Francisco International Airport to Barcelona-El Prat Airport offered by this popular carrier.

  • To break up your flight from San Francisco International Airport to Barcelona-El Prat Airport, think about adding a stopover. Simply deselect 'Direct flights only' to find a destination that interests you. Popular stopovers on the SFO - BCN route include:

    • Charles de Gaulle Airport

    • Frankfurt Airport

    • London Heathrow Airport

  • Don't forget, you may need a visa to enter Spain. Visa requirements vary and travel documentation requirements change often. Before booking your cheap ticket from SFO to BCN, check with your airline and your destination country's local embassy or consulate for the latest information.

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

  • The best price we've found for a one-way ticket from San Francisco International Airport to Barcelona-El Prat Airport is R 3,845. The cheapest price for a return flight is R 7,752. Remember that fares can change due to availability when booking.

  • To snag cheap tickets from SFO to BCN, reserve your trip 1 month before your departure.

  • Organise your trip for September. That's the cheapest month for tickets from San Francisco International Airport to Barcelona-El Prat Airport. If you have flexibility with your dates, try out the 'Whole month' tool to find the cheapest price across every month.

  • Snapping up a cheap ticket from SFO to BCN is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as there's a better deal.

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

Handy information about San Francisco International Airport (SFO)

  • San Francisco International Airport is around 21 kilometres from central San Francisco. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 20 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the journey time to be approximately 47 minutes.

  • Have an early flight from San Francisco International Airport to Barcelona-El Prat Airport? Avoid rushing to the terminal (and sneak in some extra precious sleep) by picking one of these hotels close to SFO:

Arriving at Barcelona-El Prat Airport (BCN)

  • The last thing you need is a long journey to your hotel if you're getting in late on a flight from San Francisco International Airport to Barcelona-El Prat Airport. Check in to one of these accommodation options near BCN instead:

Getting from Barcelona-El Prat Airport (BCN) to central Barcelona

  • Barcelona-El Prat Airport to central Barcelona takes around 24 minutes in a car. It's approximately 18 kilometres away. See what options are available, such as car rentals, cabs or ride-sharing.

  • Getting there by public transport takes around 33 minutes.

When to fly to Barcelona-El Prat Airport (BCN)

  • The quietest month for a flight from San Francisco International Airport to Barcelona-El Prat Airport is February, while July is the most popular. Choose the ideal time to visit Barcelona based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When booking your flight from San Francisco International Airport to Barcelona-El Prat Airport, think about the kind of weather you like. August is the warmest month in Barcelona, with temperatures ranging from 20ºC to 31ºC.

  • January sees average temperatures of between 5ºC and 14ºC. Search for cheap tickets from SFO to BCN around that time if you want to travel in cooler conditions.

More about Barcelona

  • Start your Barcelona trip right by finding a great place to stay. After booking your flight from SFO to BCN, browse our selection of hotel options including:

  • Every great journey has to include some sightseeing. Sagrada Familia, Park Guell and La Rambla de Canaletes are among the things you can't miss in Barcelona.

Complete your Barcelona trip with hotels and a car rental

  • After you've secured your cheap ticket to Barcelona-El Prat Airport, browse our low prices and exclusive offers on hotels. You can also compare hundreds of car rental companies in one go to find the best car rental price for your Barcelona getaway.

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