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$353+ Cheap flights from Barcelona-El Prat (BCN) to San Francisco (SFO)

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SFO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Barcelona-El Prat to San Francisco are usually found in February or March, booked 35 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Barcelona-El Prat to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) to San Francisco (SFO). 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 September 11, 2025.

Round-trip from

$543
(Scandinavian Airlines)

One-way from

$353
(Finnair)

Popular in

July

Cheapest in

February

Average price

$588

Good round-trip deal

$545 or less

Good one-way deal

$537 or less
From Barcelona-El Prat to San Francisco
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One-way flight from Barcelona-El Prat to San Francisco
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Highest demand for flights based on searches. 21% potential increase in price ($167 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Barcelona-El Prat to San Francisco.
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Price to beat on a one-way flight from Barcelona-El Prat to San Francisco.
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Find flight deals from Barcelona-El Prat to San Francisco

Cheapest flights from Barcelona-El Prat to San Francisco
Explore the most affordable flight options available from Barcelona-El Prat to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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.
Sun 12/77:10 pmBCN - SFO
1 stop28h 25mScandinavian Airlines
Sat 1/174:40 pmSFO - BCN
1 stop16h 40mScandinavian Airlines
Deal found 9/9$543
This lol.travel deal was found by Cheapflights users on 9/10. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:00 amBCN - SFO
2 stops25h 56mUnited Airlines
Tue 10/2110:45 pmSFO - BCN
1 stop24h 35mUnited Airlines
Deal found 9/10$544
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 11/136:50 amBCN - SFO
2 stops21h 53mUnited Airlines
Sat 11/226:45 pmSFO - BCN
2 stops29h 50mUnited Airlines
Deal found 9/11$545
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sun 12/79:55 amBCN - SFO
2 stops24h 20mUnited Airlines
Tue 1/201:35 pmSFO - BCN
1 stop14h 25mUnited Airlines
Deal found 9/9$546
This Expedia deal was found by Cheapflights users on 9/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:30 pmBCN - SFO
2 stops20h 45mIberia
Sat 10/46:10 amSFO - BCN
1 stop15h 35mIberia
Deal found 9/11$548
This Scandinavian Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 11/1310:45 amBCN - SFO
2 stops36h 50mScandinavian Airlines
Thu 3/125:40 pmSFO - BCN
1 stop16h 40mScandinavian Airlines
Deal found 9/11$549
This lol.travel deal was found by Cheapflights users on 9/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:00 amBCN - SFO
1 stop19h 35mUnited Airlines
Tue 10/282:45 pmSFO - BCN
1 stop14h 20mUnited Airlines
Deal found 9/11$551
This Air Canada deal was found by Cheapflights users on 9/11. 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.
Wed 11/51:35 pmBCN - SFO
2 stops30h 04mAir Canada
Thu 11/278:25 amSFO - BCN
1 stop16h 10mAir Canada
Deal found 9/11$552
This Booking.com deal was found by Cheapflights users on 9/9. 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.
Tue 9/166:50 amBCN - SFO
2 stops17h 38mAir Canada
Mon 9/298:30 amSFO - BCN
1 stop14h 20mAir Canada
Deal found 9/9$553
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:50 amBCN - SFO
2 stops17h 38mAir Canada
Sat 10/48:30 amSFO - BCN
1 stop14h 20mAir Canada
Deal found 9/10$554

Cheapflights Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat to San Francisco 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 September 11, 2025.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to San Francisco that are best for you.

Fly from

Barcelona-El Prat

Fly to

San Francisco

Route

Depart

Return

Price

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 11/14

12:50 pm-8:10 pm

1 stop16h 20m

San Francisco

Sat 11/22

9:40 pm-11:05 pm

1 stop16h 25m

$545

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 11/13

6:50 am-12:40 pm

1 stop14h 50m

San Francisco

Sat 11/22

9:40 pm-11:05 pm

1 stop16h 25m

$545

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 11/12

12:50 pm-8:10 pm

1 stop16h 20m

San Francisco

Sat 11/22

9:40 pm-11:05 pm

1 stop16h 25m

$545

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 3/3

6:00 am-4:01 pm

2 stops19h 01m

San Francisco

Wed 3/11

1:00 pm-2:00 pm

2 stops17h 00m

$550

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 12/12

9:10 am-6:34 pm

2 stops42h 24m

San Francisco

Sat 1/17

4:47 pm-9:35 am

2 stops31h 48m

$550

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 12/26

5:50 am-9:50 pm

2 stops25h 00m

San Francisco

Thu 1/1

6:30 am-4:20 pm

2 stops24h 50m

$555

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sun 11/9

6:45 am-4:30 pm

1 stop18h 45m

San Francisco

Thu 11/27

1:30 pm-5:35 pm

1 stop19h 05m

$556

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 10/16

6:50 am-3:28 pm

2 stops17h 38m

San Francisco

Fri 10/24

11:00 pm-9:35 am

2 stops25h 35m

$563

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 3/3

7:50 pm-4:30 pm

1 stop29h 40m

San Francisco

Sun 3/22

1:50 pm-11:00 pm

2 stops25h 10m

$567

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 10/25

6:50 am-9:50 pm

2 stops24h 00m

San Francisco

Sat 11/1

9:24 pm-9:35 am

2 stops28h 11m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 23 results
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The best insider tips for Barcelona-El Prat Airport to San Francisco flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Barcelona-El Prat Airport to San Francisco trip
Airports
BCN

Expect queues at security in BCN, but they are well managed and fast moving. Arrive early, especially during peak seasons.

Read more about BCNby Duncan Madden
SFO

The least expensive way to travel from SFO to downtown San Francisco is on BART, taking about 40 minutes.

Read more about SFOby Harriet Baskas
Our travel experts
Duncan Madden

Duncan Madden

Expert on BCN

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Harriet Baskas

Harriet Baskas

Expert on SFO

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Best time to book a flight from Barcelona-El Prat to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Barcelona-El Prat 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 Barcelona-El Prat Airport to San Francisco

How far ahead should I book a flight from Barcelona-El Prat Airport to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from Barcelona-El Prat to San Francisco. Price data was last updated on August 29, 2025.

The best time to book flights from Barcelona-El Prat Airport to San Francisco is 35 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Barcelona-El Prat Airport to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Francisco (average of $276). Flying from Barcelona-El Prat Airport to San Francisco in June is currently the most expensive (average of $357). 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 BCN to SFO?

Find hourly flight availability from Barcelona-El Prat to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from Barcelona-El Prat Airport to San Francisco in the evening. Doing so could potentially save you 22% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated September 11, 2025.
See what other customers who have flown with Delta, United Airlines, and TAP AIR PORTUGAL from Barcelona-El Prat Airport to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
TAP AIR PORTUGAL
7.1
Good
1,977 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Iberia
7.0
Good
2,929 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Lufthansa
6.8
Okay
7,409 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Barcelona-El Prat to San Francisco. 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 into for flights to San Francisco from Barcelona-El Prat?

    For a flight from Barcelona-El Prat to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 2 inbound flights from Barcelona-El Prat per day. 10 airlines have flights to San Francisco from Barcelona-El Prat on a regular basis.

  • How long is the flight from Barcelona-El Prat Airport to San Francisco?

    A quick flight from Barcelona-El Prat Airport to San Francisco can take about 16h 20m. Lufthansa provides one of the quickest options available for as low as $545. The distance between Barcelona-El Prat Airport and San Francisco is about 5952 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from Barcelona-El Prat Airport to San Francisco round-trip from $294. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $375, and British Airways, from $381. Vueling is 52% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Barcelona-El Prat Airport to San Francisco?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Barcelona-El Prat Airport to San Francisco on time: Iberia (69%), easyJet (69%), Qatar Airways (67%).

  • What are the cheapest flights from Barcelona-El Prat Airport to San Francisco?

    On average you can expect to pay $845 for a flight from Barcelona-El Prat Airport to San Francisco. The cheapest flight overall is $342 while the most popular route, (Barcelona-El Prat - San Francisco) is currently priced at $481.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Barcelona-El Prat to San Francisco 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 Barcelona-El Prat Airport to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Francisco (average of $276). Flying from Barcelona-El Prat Airport to San Francisco in June is currently the most expensive (average of $357). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Roseville
Santa Cruz
Livermore
South San Francisco
Turlock
Antioch
Watsonville
Manteca
Santa Clara
Sunnyvale
Hollister
Vacaville
Foster City
Vallejo
Burlingame
Redwood City
Union City
San Leandro
San Mateo
Lathrop

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Barcelona-El Prat to San Francisco

Discover the top 10 airlines that operate flights from Barcelona-El Prat to San Francisco. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$294Average$765FlexibilityNo cancel feeOn-time88%
TAP AIR PORTUGALCheapest$375Average$679FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$381Average$381FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$388Average$637FlexibilityNo cancel feeOn-time69%
DeltaCheapest$401Average$626FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$402Average$586FlexibilityNo cancel feeOn-time75%
SWISSCheapest$416Average$605FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$425Average$626FlexibilityNo cancel feeOn-time76%
LEVELCheapest$501Average$790FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$533Average$796FlexibilityNo cancel feeOn-time77%

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