Barcelona

$196+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BCN
oct. 16 — oct. 231
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Cheapflights Tip: The best prices from San Francisco to Barcelona are usually found in January or March, booked 49 days in advance, depart on a Tuesday or Sunday and return on a Wednesday

Cheap 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 septiembre 16, 2025.

Round-trip from

$462
(United Airlines)

One-way from

$196
(KAYAK)

Popular in

June

Cheapest in

January

Average price

$640
From San Francisco to Barcelona
One-way flight from San Francisco to Barcelona
Highest demand for flights based on searches. 21% potential increase in price ($201 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 September 2025

Find 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 septiembre 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/191:30 pmSFO - BCN
1 stop19h 05mUnited Airlines
mar. 12/211:55 amBCN - SFO
1 stop16h 40mUnited Airlines
Deal found 9/13$462
This Air Canada deal was found by Cheapflights users on 9/14. 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.
lun. 10/132:05 pmSFO - BCN
2 stops32h 45mAir Canada
vie. 11/141:35 pmBCN - SFO
2 stops38h 32mAir Canada
Deal found 9/14$463
This Gurufare deal was found by Cheapflights users on 9/15. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/219:05 pmSFO - BCN
1 stop15h 35mLufthansa
mar. 9/3011:15 amBCN - SFO
1 stop17h 53mLufthansa
Deal found 9/15$464
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2211:59 pmSFO - BCN
2 stops22h 51mAir Canada
mar. 10/77:50 amBCN - SFO
2 stops22h 53mAir Canada
Deal found 9/15$465
This Air Canada deal was found by Cheapflights users on 9/14. 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.
mié. 10/226:35 amSFO - BCN
2 stops16h 15mMultiple Airlines
mié. 11/51:35 pmBCN - SFO
1 stop16h 47mMultiple Airlines
Deal found 9/14$466
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/79:05 pmSFO - BCN
1 stop15h 35mUnited Airlines
mar. 10/214:00 pmBCN - SFO
Nonstop12h 15mUnited Airlines
Deal found 9/15$467
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/137:10 amSFO - BCN
2 stops21h 55mAir Canada
mié. 10/228:00 amBCN - SFO
2 stops22h 43mAir Canada
Deal found 9/14$468
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/125:30 pmSFO - BCN
Nonstop11h 30mUnited Airlines
mar. 11/111:35 pmBCN - SFO
1 stop16h 47mUnited Airlines
Deal found 9/14$469
This Air Canada deal was found by Cheapflights users on 9/14. 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.
mar. 10/71:36 pmSFO - BCN
2 stops19h 19mMultiple Airlines
mar. 10/216:50 amBCN - SFO
2 stops17h 38mMultiple Airlines
Deal found 9/14$470
This Delta deal was found by Cheapflights users on 9/13. 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.
mar. 10/1410:40 amSFO - BCN
2 stops19h 10mDelta
mar. 10/216:20 amBCN - SFO
1 stop14h 25mDelta
Deal found 9/13$471
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/118:00 pmSFO - BCN
2 stops37h 10mScandinavian Airlines
dom. 11/97:10 pmBCN - SFO
1 stop28h 25mScandinavian Airlines
Deal found 9/14$472
This British Airways deal was found by Cheapflights users on 9/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/911:28 pmSFO - BCN
1 stop24h 32mBritish Airways
vie. 12/196:40 amBCN - SFO
1 stop17h 20mBritish Airways
Deal found 9/14$473

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 septiembre 16, 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

mar. 10/21

5:15 am-8:20 am

2 stops18h 05m

Barcelona-El Prat

mié. 10/29

6:50 am-1:40 pm

1 stop14h 50m

$463

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

vie. 10/17

6:00 am-6:10 pm

2 stops27h 10m

Barcelona-El Prat

jue. 10/30

7:10 pm-3:35 pm

1 stop28h 25m

$479

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

vie. 10/24

8:30 am-7:50 am

1 stop14h 20m

Barcelona-El Prat

mié. 10/29

6:45 am-5:30 pm

1 stop18h 45m

$486

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

jue. 10/23

5:30 pm-2:00 pm

Nonstop11h 30m

Barcelona-El Prat

mar. 10/28

6:45 am-5:30 pm

1 stop18h 45m

$486

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

sáb. 10/4

11:45 pm-7:50 am

1 stop23h 05m

Barcelona-El Prat

sáb. 10/25

6:00 am-4:35 pm

1 stop19h 35m

$486

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

mié. 2/11

5:00 am-9:35 am

2 stops19h 35m

Barcelona-El Prat

mié. 2/25

1:50 pm-1:28 am

2 stops20h 38m

$493

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

jue. 10/9

8:25 pm-8:20 pm

1 stop14h 55m

Barcelona-El Prat

jue. 11/20

10:15 am-6:29 pm

1 stop17h 14m

$498

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

mié. 10/22

5:15 am-7:50 am

2 stops17h 35m

Barcelona-El Prat

lun. 10/27

6:35 am-9:50 pm

2 stops23h 15m

$501

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

lun. 10/20

6:59 pm-9:35 am

2 stops53h 36m

Barcelona-El Prat

lun. 10/27

7:10 pm-4:10 pm

1 stop29h 00m

$502

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

lun. 10/27

7:15 am-11:10 am

2 stops19h 55m

Barcelona-El Prat

lun. 11/17

10:15 am-1:12 am

1 stop23h 57m

$503

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 25 results
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2
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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 September 12, 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, January is the cheapest month in which you can book a flight from San Francisco to Barcelona (average of $523). Flying from San Francisco to Barcelona in June is currently the most expensive (average of $1,061). 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 septiembre 16, 2025.

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

What is the cheapest day to fly from San Francisco to Barcelona?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Barcelona. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to Barcelona flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to Barcelona

Explore weekly flight availability from San Francisco to Barcelona. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated septiembre 16, 2025.

The most flights from SFO to S37 are scheduled on a Tuesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 septiembre 16, 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.

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

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??

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

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??

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

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??

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

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??

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Overall

7.4

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 2 outbound flights to Barcelona per day.

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

    Airlines like United Airlines and Scandinavian Airlines fly from San Francisco to Barcelona in about 18h 05m. The time it takes to get you to your destination can typically vary by up to 9h 05m. 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 TAP AIR PORTUGAL and LEVEL, starting at $367 and $374 round-trip. LEVEL is 55% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 Iberia (94%), easyJet (94%) and Vueling (89%).

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

    Looking at all options, your cheapest flight can be booked for $262. While the most popular route (San Francisco - Barcelona-El Prat) can be booked for $411 on average, our data indicates $1,717 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 $40.

  • 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 $19 per day.

  • What are points of interest worth seeing during a layover in Montreal?

    Montreal travelers tend to visit Centre Bell, Vieux-Port de Montréal, and Notre-Dame Basilica more than any other attractions. Centre Bell, Vieux-Port de Montréal, and Notre-Dame Basilica can be accessed by traveling approximately 9.1 mi, 10.0 mi, and 9.9 mi, respectively from Montreal Pierre Elliott Trudeau Intl. Those on a layover in Montreal in need of a rental car can book one at Montreal Pierre Elliott Trudeau Intl for about $59.

  • 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, January is the cheapest month in which you can book a flight from San Francisco to Barcelona (average of $523). Flying from San Francisco to Barcelona in June is currently the most expensive (average of $1,061). 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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$323Average$576FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$367Average$493FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$374Average$667FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$404Average$997FlexibilityNo cancel feeOn-time72%
FinnairCheapest$418Average$671FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$421Average$559FlexibilityNo cancel feeOn-time77%
VuelingCheapest$443Average$734FlexibilityNo cancel feeOn-time88%
SWISSCheapest$457Average$612FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$460Average$805FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$482Average$641FlexibilityNo cancel feeOn-time70%

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