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$322+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SFO
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
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 November, booked 35 days in advance, depart on a Friday 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 July 28, 2025.

Round-trip from

$635
(British Airways)

One-way from

$322
(LEVEL)

Popular in

July

Cheapest in

February

Average price

$848

Good round-trip deal

$631 or less

Good one-way deal

$373 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. 23% potential increase in price ($186 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 28, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:10 amBCN - SFO
1 stop21h 05mDelta
Sun 9/2812:40 pmSFO - BCN
2 stops18h 00mDelta
Deal found 7/28$635
This flugladen.de deal was found by Cheapflights users on 7/27. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/104:00 pmBCN - SFO
Nonstop12h 15mMultiple Airlines
Wed 9/1711:40 amSFO - BCN
1 stop35h 10mMultiple Airlines
Deal found 7/27$636
This United Airlines deal was found by Cheapflights users on 7/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/210:30 amBCN - SFO
2 stops29h 54mUnited Airlines
Sat 11/298:25 amSFO - BCN
1 stop16h 10mUnited Airlines
Deal found 7/26$639
This British Airways deal was found by Cheapflights users on 7/26. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/289:20 pmBCN - SFO
1 stop25h 30mBritish Airways
Wed 10/87:20 pmSFO - BCN
1 stop18h 25mBritish Airways
Deal found 7/26$641
This Booking.com deal was found by Cheapflights users on 7/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/243:00 pmBCN - SFO
1 stop32h 30mTAP AIR PORTUGAL
Wed 10/84:20 pmSFO - BCN
1 stop15h 35mTAP AIR PORTUGAL
Deal found 7/28$642
This Lufthansa deal was found by Cheapflights users on 7/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/264:00 pmBCN - SFO
Nonstop12h 05mLufthansa
Wed 10/89:05 pmSFO - BCN
1 stop15h 35mLufthansa
Deal found 7/27$644
This SWISS deal was found by Cheapflights users on 7/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/258:00 pmBCN - SFO
1 stop29h 10mSWISS
Sat 9/67:30 pmSFO - BCN
1 stop14h 40mSWISS
Deal found 7/28$650
This Austrian Airlines deal was found by Cheapflights users on 7/26. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/209:55 amBCN - SFO
2 stops44h 39mAustrian Airlines
Mon 12/18:35 amSFO - BCN
2 stops26h 10mAustrian Airlines
Deal found 7/26$660
This Air Canada deal was found by Cheapflights users on 7/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1012:10 pmBCN - SFO
1 stop32h 01mAir Canada
Fri 10/1710:48 amSFO - BCN
2 stops18h 17mAir Canada
Deal found 7/27$661
This Gotogate deal was found by Cheapflights users on 7/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:20 pmBCN - SFO
Nonstop13h 05mVueling
Sat 9/138:10 pmSFO - BCN
Nonstop11h 35mVueling
Deal found 7/26$667
This oojo deal was found by Cheapflights users on 7/26. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/244:50 pmBCN - SFO
1 stop29h 35mITA Airways
Tue 9/93:15 pmSFO - BCN
1 stop23h 00mITA Airways
Deal found 7/26$669
This Iberia deal was found by Cheapflights users on 7/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/209:15 amBCN - SFO
1 stop15h 55mIberia
Tue 9/308:10 pmSFO - BCN
Nonstop11h 35mIberia
Deal found 7/26$676

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 July 28, 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 9/19

6:10 am-6:15 pm

1 stop21h 05m

San Francisco

Sun 9/28

12:40 pm-3:40 pm

2 stops18h 00m

$635

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 9/10

4:00 pm-7:15 pm

Nonstop12h 15m

San Francisco

Wed 9/17

11:40 am-7:50 am

1 stop35h 10m

$636

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sun 11/2

10:30 am-7:24 am

2 stops29h 54m

San Francisco

Mon 11/24

8:25 am-9:35 am

1 stop16h 10m

$639

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sun 9/28

9:20 pm-1:50 pm

1 stop25h 30m

San Francisco

Wed 10/8

7:20 pm-10:45 pm

1 stop18h 25m

$641

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sun 8/24

3:00 pm-2:30 pm

1 stop32h 30m

San Francisco

Wed 10/8

4:20 pm-4:55 pm

1 stop15h 35m

$642

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 8/26

4:00 pm-7:05 pm

Nonstop12h 05m

San Francisco

Wed 10/8

9:05 pm-9:40 pm

1 stop15h 35m

$644

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 8/25

8:00 pm-4:10 pm

1 stop29h 10m

San Francisco

Sat 9/6

7:30 pm-7:10 pm

1 stop14h 40m

$650

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 11/20

9:55 am-9:34 pm

2 stops44h 39m

San Francisco

Mon 12/1

8:35 am-7:45 pm

2 stops26h 10m

$660

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 10/10

12:10 pm-11:11 am

1 stop32h 01m

San Francisco

Fri 10/17

10:48 am-2:05 pm

2 stops18h 17m

$661

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sun 8/24

4:50 pm-1:25 pm

1 stop29h 35m

San Francisco

Tue 9/9

3:15 pm-11:15 pm

1 stop23h 00m

$669

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 16 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 July 25, 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 $358). 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 July 28, 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 29% on the flight price compared to flying in the afternoon, which is usually more expensive.

Weekly flight availability from Barcelona-El Prat Airport to San Francisco

Explore weekly flight availability from Barcelona-El Prat to San Francisco. 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 July 28, 2025.

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

What’s the top layover airport for flights from Barcelona-El Prat Airport to San Francisco?

Share of 1-stop round-trip flights from Barcelona-El Prat Airport to San Francisco chosen by Cheapflights users in the past 12 months, using the same layover each way.

London (LHR) – chosen by Cheapflights users on 86% of 1-stop itineraries from Barcelona-El Prat Airport to San Francisco on Cheapflights.

What’s the cheapest layover airport for flights from Barcelona-El Prat Airport to San Francisco?

Average round-trip fare for 1-stop flights from Barcelona-El Prat Airport to San Francisco, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $1,689.

What’s the fastest layover option from Barcelona-El Prat Airport to San Francisco?

Shortest average travel time for 1-stop one-way flights from Barcelona-El Prat Airport to San Francisco, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via London (LHR) have the shortest average one-way travel time for 1-stop routes: 13h 45m.

Which airport typically offers the quickest layover for flights from Barcelona-El Prat Airport to San Francisco?

Average layover duration for 1-stop one-way flights from Barcelona-El Prat Airport to San Francisco, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via London (LHR) offer the fastest connection on this route, with an average layover time of 2h 13m.

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 July 28, 2025.
See what other customers who have flown with Delta, Austrian Airlines, and SWISS 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
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
Austrian Airlines
7.6
Good
820 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
SWISS
7.6
Good
1,679 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

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
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

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.

  • 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 $635. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $638, and Virgin Atlantic, from $639.

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

    For one-way options, check prices for LEVEL. According to our data, you can fly for as low as $322. Users have also found prices from $332 and $391 on TAP AIR PORTUGAL and Iberia, respectively.

  • 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: Vueling (89%), Iberia (84%), easyJet (84%).

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

    On average you can expect to pay $1,435 for a flight from Barcelona-El Prat Airport to San Francisco. The cheapest flight overall is $175 while the most popular route, (Barcelona-El Prat - San Francisco) is currently priced at $489.

  • 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 $358). 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
Mountain View
Santa Cruz
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Livermore
Turlock
Manteca
Antioch
Hollister
Watsonville
Newark
Milpitas
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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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$294Average$812FlexibilityNo cancel feeOn-time88%
British AirwaysCheapest$381Average$381FlexibilityNo cancel feeOn-time70%
DeltaCheapest$401Average$662FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$403Average$631FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$407Average$552FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$409Average$669FlexibilityNo cancel feeOn-time75%
SWISSCheapest$416Average$622FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$450Average$646FlexibilityNo cancel feeOn-time76%
LEVELCheapest$501Average$784FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$533Average$847FlexibilityNo cancel feeOn-time77%

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