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$211+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BCN
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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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 Friday

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 agosto 14, 2025.

Round-trip from

$448
(Kiwi.com)

One-way from

$211
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$671
From San Francisco to Barcelona
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One-way flight from San Francisco to Barcelona
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Highest demand for flights based on searches. 21% potential increase in price ($202 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 agosto 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
mié. 10/224:20 pmSFO - BCN
1 stop24h 10mTAP AIR PORTUGAL
vie. 11/76:45 amBCN - SFO
1 stop18h 20mTAP AIR PORTUGAL
Deal found 8/12$448
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
mar. 10/214:20 pmSFO - BCN
1 stop18h 00mTAP AIR PORTUGAL
vie. 11/76:45 amBCN - SFO
1 stop18h 20mTAP AIR PORTUGAL
Deal found 8/12$449
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/104:35 pmSFO - BCN
1 stop18h 45mTAP AIR PORTUGAL
mié. 12/176:45 amBCN - SFO
1 stop16h 45mTAP AIR PORTUGAL
Deal found 8/13$450
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/54:35 pmSFO - BCN
1 stop15h 40mTAP AIR PORTUGAL
mar. 11/119:10 pmBCN - SFO
1 stop26h 20mTAP AIR PORTUGAL
Deal found 8/13$451
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/74:40 pmSFO - BCN
1 stop16h 40mScandinavian Airlines
jue. 12/117:10 pmBCN - SFO
1 stop28h 25mScandinavian Airlines
Deal found 8/14$452
This SmartFares deal was found by Cheapflights users on 8/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/227:40 pmSFO - BCN
1 stop37h 30mScandinavian Airlines
mié. 11/57:10 pmBCN - SFO
1 stop28h 25mScandinavian Airlines
Deal found 8/14$453
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/144:20 pmSFO - BCN
1 stop24h 10mTAP AIR PORTUGAL
mar. 10/216:00 amBCN - SFO
1 stop16h 35mTAP AIR PORTUGAL
Deal found 8/12$454
This United Airlines deal was found by Cheapflights users on 8/13. 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.
mar. 10/215:30 pmSFO - BCN
Nonstop11h 30mUnited Airlines
mié. 11/121:35 pmBCN - SFO
2 stops41h 14mUnited Airlines
Deal found 8/13$456
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
sáb. 11/294:35 pmSFO - BCN
1 stop15h 40mTAP AIR PORTUGAL
lun. 12/156:45 amBCN - SFO
1 stop16h 50mTAP AIR PORTUGAL
Deal found 8/12$458
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/34:35 pmSFO - BCN
1 stop22h 10mTAP AIR PORTUGAL
mar. 12/99:10 pmBCN - SFO
1 stop26h 20mTAP AIR PORTUGAL
Deal found 8/13$459
This United Airlines deal was found by Cheapflights users on 8/13. 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. 10/225:15 amSFO - BCN
2 stops17h 35mUnited Airlines
vie. 11/71:35 pmBCN - SFO
2 stops40h 30mUnited Airlines
Deal found 8/13$461
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/248:30 amSFO - BCN
1 stop14h 20mMultiple Airlines
mié. 10/86:50 amBCN - SFO
1 stop14h 50mMultiple Airlines
Deal found 8/14$462

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 agosto 14, 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

mié. 10/22

8:30 am-7:50 am

1 stop14h 20m

Barcelona-El Prat

vie. 11/7

1:35 pm-9:05 pm

2 stops40h 30m

$456

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

mié. 12/10

8:25 am-9:35 am

1 stop16h 10m

Barcelona-El Prat

mié. 12/24

1:35 pm-9:50 pm

2 stops41h 15m

$456

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

mié. 11/12

8:25 am-9:35 am

1 stop16h 10m

Barcelona-El Prat

mié. 11/26

1:35 pm-9:10 pm

2 stops40h 35m

$456

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

sáb. 10/4

11:33 pm-1:15 pm

1 stop28h 42m

Barcelona-El Prat

mar. 10/21

12:10 pm-11:11 am

1 stop32h 01m

$461

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

mar. 12/30

6:45 am-8:20 am

1 stop16h 35m

Barcelona-El Prat

mar. 1/13

1:35 pm-1:24 pm

2 stops32h 49m

$461

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

sáb. 9/27

4:30 pm-8:20 am

1 stop30h 50m

Barcelona-El Prat

mié. 10/8

12:10 pm-11:11 am

1 stop32h 01m

$461

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

mié. 1/14

4:35 pm-5:15 pm

1 stop15h 40m

Barcelona-El Prat

vie. 4/17

6:00 am-4:50 pm

1 stop19h 50m

$463

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

mar. 12/2

9:20 pm-8:20 am

1 stop26h 00m

Barcelona-El Prat

jue. 4/2

1:15 pm-10:52 am

1 stop30h 37m

$468

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

lun. 9/22

8:30 am-7:50 am

1 stop14h 20m

Barcelona-El Prat

jue. 10/2

4:00 pm-7:15 pm

Nonstop12h 15m

$469

San FranciscoBarcelona

SFO - BCN

SFOBCN

San Francisco

mié. 9/24

5:30 pm-2:00 pm

Nonstop11h 30m

Barcelona-El Prat

jue. 10/2

4:00 pm-7:15 pm

Nonstop12h 15m

$469

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 30 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 August 8, 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 $1,057). 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 agosto 14, 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. Thursday 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 agosto 14, 2025.

The most flights from SFO to S37 are scheduled on a Thursday (3 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 agosto 14, 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.
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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??
Vueling
7.1
Good
1,180 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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??
Iberia
7.0
Good
2,878 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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??
British Airways
6.7
Okay
7,266 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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.

  • 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?

    The most popular flight routes from San Francisco to Barcelona are San Francisco - Barcelona-El Prat, San Francisco - Reus and San Francisco - Girona Costa Brava.

  • 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 Vueling (100%), Iberia (91%) and easyJet (91%).

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

    Looking at all options, your cheapest flight can be booked for $213. While the most popular route (San Francisco - Barcelona-El Prat) can be booked for $387 on average our data indicates $1,629 when flying from San Francisco to Barcelona.

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

    Flights departing from San Francisco and landing in Barcelona layover in London most frequently. Lisbon follows London in terms of the most common layover location on San Francisco to Barcelona flights. Montreal follows Lisbon in terms of the most frequent layover location on San Francisco to Barcelona flights.

  • 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 $48.

  • 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 $32 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 $77.

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

    San Francisco to Barcelona flights have a layover in Toronto the least frequently. San Francisco to Barcelona flights stopping in Amsterdam are the next rarest. Istanbul ranks third to last in terms of the least popular layover locations on 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 $1,057). 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

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Alternative routes for San Francisco to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.
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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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$323Average$408FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$367Average$485FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$374Average$671FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$404Average$973FlexibilityNo cancel feeOn-time72%
FinnairCheapest$418Average$679FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$446Average$798FlexibilityNo cancel feeOn-time67%
SWISSCheapest$450Average$608FlexibilityNo cancel feeOn-time79%
VuelingCheapest$451Average$741FlexibilityNo cancel feeOn-time88%
Scandinavian AirlinesCheapest$479Average$571FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$480Average$646FlexibilityNo cancel feeOn-time70%

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