Barcelona

$375+ Cheap flights from San Francisco (SFO) to Barcelona

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BCN
Jan 27 — Feb 31
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Francisco to Barcelona are usually found in January or February, booked 49 days in advance, depart on a Tuesday or Sunday and return on a Wednesday

Cheap flight deals from San Francisco to Barcelona

Cheapest flights from San Francisco to Barcelona
Explore the most affordable flight options available from San Francisco to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:25 pmSFO - BCN
1 stop14h 35mMultiple Airlines
Thu 1/156:50 amBCN - SFO
1 stop14h 50mMultiple Airlines
Deal found 12/28$480
This Kiwi.com deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:25 pmSFO - BCN
1 stop18h 35mSWISS
Mon 1/127:50 pmBCN - SFO
1 stop29h 40mSWISS
Deal found 12/27$486
This Air Canada deal was found by Cheapflights users on 12/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:25 amSFO - BCN
1 stop16h 10mAir Canada
Thu 1/151:35 pmBCN - SFO
2 stops36h 54mAir Canada
Deal found 12/28$496
This Delta deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:30 pmSFO - BCN
1 stop25h 10mDelta
Mon 1/121:00 pmBCN - SFO
1 stop31h 50mDelta
Deal found 12/26$497
This Kissandfly.com deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:35 pmSFO - BCN
2 stops24h 25mLufthansa
Wed 1/147:40 amBCN - SFO
1 stop20h 55mLufthansa
Deal found 12/27$499
This CheapOair deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:25 amSFO - BCN
1 stop16h 10mMultiple Airlines
Mon 1/122:55 pmBCN - SFO
1 stop34h 35mMultiple Airlines
Deal found 12/26$500
This KLM deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amSFO - BCN
1 stop17h 40mKLM
Mon 1/125:25 pmBCN - SFO
1 stop27h 25mKLM
Deal found 12/26$501
This Kissandfly.com deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amSFO - BCN
1 stop17h 40mMultiple Airlines
Wed 1/1410:55 amBCN - SFO
1 stop17h 54mMultiple Airlines
Deal found 12/27$502
This Cheapflightsfares deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:25 pmSFO - BCN
1 stop14h 35mSWISS
Mon 1/127:50 pmBCN - SFO
2 stops30h 10mSWISS
Deal found 12/27$514
This Cheapflightsfares deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:25 pmSFO - BCN
1 stop14h 35mMultiple Airlines
Sat 1/179:55 amBCN - SFO
1 stop15h 00mMultiple Airlines
Deal found 12/27$526

Find flight deals from San Francisco to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 28, 2025.

Round-trip from

$477
(FlightHub)

One-way from

$375
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$874
From San Francisco to Barcelona
One-way flight from San Francisco to Barcelona
Highest demand for flights based on searches. 22% potential increase in price ($205 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Barcelona that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from San Francisco to Barcelona that are best for you.

Fly from

San Francisco

Fly to

Barcelona

Route

Depart

Return

Price

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Mon 2/16

4:40 pm-6:20 pm

1 stop16h 40m

Barcelona-El Prat

Mon 3/2

12:10 pm-2:35 pm

2 stops35h 25m

$487

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Tue 2/10

6:45 am-9:00 am

2 stops17h 15m

Barcelona-El Prat

Tue 2/17

1:35 pm-1:22 pm

2 stops32h 47m

$489

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Mon 3/2

4:40 pm-6:20 pm

1 stop16h 40m

Barcelona-El Prat

Fri 3/6

7:10 pm-2:35 pm

1 stop28h 25m

$492

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Wed 1/7

9:05 am-5:35 pm

2 stops23h 30m

Barcelona-El Prat

Thu 1/15

1:35 pm-9:17 pm

2 stops40h 42m

$493

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Wed 3/4

7:10 pm-3:40 pm

Nonstop11h 30m

Barcelona-El Prat

Tue 3/17

12:35 pm-9:22 pm

1 stop16h 47m

$493

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Sun 3/1

4:40 pm-8:10 pm

2 stops18h 30m

Barcelona-El Prat

Thu 3/5

7:10 pm-2:35 pm

1 stop28h 25m

$497

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Sun 2/22

12:43 am-9:35 am

3 stops23h 52m

Barcelona-El Prat

Thu 3/5

1:35 pm-9:22 pm

1 stop16h 47m

$501

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Tue 2/24

7:25 am-9:00 am

2 stops16h 35m

Barcelona-El Prat

Wed 3/11

12:35 pm-9:22 pm

1 stop16h 47m

$502

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Fri 4/24

4:45 pm-11:30 am

2 stops33h 45m

Barcelona-El Prat

Sat 5/9

11:50 am-2:40 pm

2 stops35h 50m

$507

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

Sat 4/11

11:35 pm-12:50 pm

1 stop28h 15m

Barcelona-El Prat

Tue 4/28

10:05 am-7:54 pm

2 stops18h 49m

$522

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 23 results
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Best time to book a flight from San Francisco to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Barcelona

How far ahead should I book a flight from San Francisco to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Barcelona. Price data was last updated on December 26, 2025.

The price you pay for your flight from San Francisco to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Francisco to Barcelona?

Currently, October is the cheapest month in which you can book a flight from San Francisco to Barcelona (average of $374). Flying from San Francisco to Barcelona in June is currently the most expensive (average of $702). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to BCN?

Find hourly flight availability from San Francisco to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 28, 2025.

It’s optimal to fly from San Francisco to Barcelona at noon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the evening.

How much does it cost to fly round-trip from San Francisco to Barcelona?

How often are flights from San Francisco to Barcelona delayed?

About 15% of weekly flights between San Francisco and Barcelona have experienced delays in the past year, with the average delay time being 181 minutes.

What is the most punctual flight time for San Francisco to Barcelona flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Francisco to Barcelona flights?

Over the last year, LEVEL have had the lowest number of delays on this route, with just 8% of flights being delayed.

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona. Reviews last updated December 28, 2025.
See what other customers who have flown with United Airlines, Vueling, and Iberia from San Francisco to Barcelona have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Boarding

7.7

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from San Francisco to Barcelona?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Barcelona. 22 airlines have flights from San Francisco to Barcelona on a regular basis. Booking flights from San Francisco to Barcelona should not be difficult; the airport handles an average of 0 outbound flights to Barcelona per day.

  • How long is the flight from San Francisco to Barcelona?

    Airlines like Scandinavian Airlines and United Airlines fly from San Francisco to Barcelona in about 16h 40m. The time it takes to get you to your destination can typically vary by up to 35m. There are 5952 mi between San Francisco and Barcelona. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Francisco to Barcelona round-trip?

    Our cheapest airline available from San Francisco to Barcelona is LEVEL. Our recent data shows that you can find tickets from as low as $323 on this airline. Additional options worth looking into are LEVEL and TAP AIR PORTUGAL, starting at $353 and $358 round-trip. LEVEL is 54% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Francisco to Barcelona one-way?

    The cheapest airlines for a one-way flight from San Francisco to Barcelona are TAP AIR PORTUGAL ($167), LEVEL ($190), and LEVEL ($210).

  • What are the most popular routes from San Francisco to Barcelona?

  • What are the most reliable airlines from San Francisco to Barcelona?

    The top 3 most reliable airlines when flying from San Francisco to Barcelona are American Airlines (100%), Qatar Airways (100%) and Vueling (100%).

  • What are the cheapest flights from San Francisco to Barcelona?

    Looking at all options, your cheapest flight can be booked for $302. While the most popular route (San Francisco - Barcelona-El Prat) can be booked for $427 on average, our data indicates $1,772 when flying from San Francisco to Barcelona.

  • Where are the most common layover locations when flying from San Francisco to Barcelona?

  • What are some popular things to do or see while on a layover in London?

    Most London visitors opt to spend their time experiencing Hyde Park, Buckingham Palace, and Piccadilly Circus. Hyde Park, Buckingham Palace and Piccadilly Circus are located about 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow if you are interested in checking them out. Those on a layover in London in need of a rental car can book one at London Heathrow for about $32.

  • What are some popular points of interest to see during a layover in Lisbon?

    Chiado, Praça do Marquês de Pombal, and Londres are the most popular attractions in Lisbon if you're in need of something to do during your layover. Those on a layover in Lisbon interested in visiting Chiado, Praça do Marquês de Pombal, or Londres can do so by traveling 4.5 mi, 3.6 mi, and 2.3 mi, respectively from Lisbon Humberto Delgado. Those landing in Lisbon looking to spend some time exploring during their layover can rent a car for about $16 per day.

  • What are points of interest worth seeing during a layover in Frankfurt am Main?

    Frankfurt am Main travelers tend to visit Römerberg, Konstablerwache, and Festhalle more than any other attractions. Römerberg, Konstablerwache, and Festhalle can be accessed by traveling approximately 7.4 mi, 7.7 mi, and 6.5 mi, respectively from Frankfurt am Main. Those on a layover in Frankfurt am Main in need of a rental car can book one at Frankfurt am Main for about $43.

  • Where are the least popular layover locations for San Francisco to Barcelona flights?

  • Can I find deals for flights from San Francisco to Barcelona that include hotel bookings?

    Yes. In addition to deals on San Francisco to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Barcelona.

  • Can I find deals for business class flights from San Francisco to Barcelona?

    Yes. Cheapflights offers flight deals from San Francisco to Barcelona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Barcelona?

    Currently, October is the cheapest month in which you can book a flight from San Francisco to Barcelona (average of $374). Flying from San Francisco to Barcelona in June is currently the most expensive (average of $702). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from San Francisco to Barcelona

Discover the top 10 airlines that operate flights from San Francisco to Barcelona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$323Average$712FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$358Average$480FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$374Average$624FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$404Average$930FlexibilityNo cancel feeOn-time72%
Scandinavian AirlinesCheapest$415Average$544FlexibilityNo cancel feeOn-time77%
FinnairCheapest$418Average$639FlexibilityNo cancel feeOn-time76%
ITA AirwaysCheapest$444Average$684FlexibilityNo cancel feeOn-time81%
VuelingCheapest$444Average$729FlexibilityNo cancel feeOn-time88%
Air FranceCheapest$447Average$786FlexibilityNo cancel feeOn-time77%
SWISSCheapest$462Average$610FlexibilityNo cancel feeOn-time79%

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