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$342+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SFO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$611
(Iberia)

One-way from

$342
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$798

Good round-trip deal

$690 or less

Good one-way deal

$408 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 ($191 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Iberia deal was found by Cheapflights users on 6/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:40 amBCN - SFO
2 stops25h 15mIberia
Wed 10/296:30 pmSFO - BCN
1 stop30h 40mIberia
Deal found 6/10$611
This Air Canada deal was found by Cheapflights users on 6/10. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:50 amBCN - SFO
2 stops25h 19mAir Canada
Tue 11/410:46 amSFO - BCN
2 stops18h 59mAir Canada
Deal found 6/10$613
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/206:50 amBCN - SFO
2 stops21h 54mUnited Airlines
Mon 11/35:10 amSFO - BCN
1 stop22h 55mUnited Airlines
Deal found 6/10$614
This Finnair deal was found by Cheapflights users on 6/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/182:05 pmBCN - SFO
Nonstop13h 05mMultiple Airlines
Sat 11/19:32 amSFO - BCN
1 stop15h 28mMultiple Airlines
Deal found 6/10$615
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/139:00 amBCN - SFO
1 stop22h 00mDelta
Sun 9/217:00 amSFO - BCN
2 stops17h 00mDelta
Deal found 6/10$620
This Flighttix deal was found by Cheapflights users on 6/11. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/234:00 pmBCN - SFO
Nonstop12h 05mLufthansa
Mon 7/75:40 pmSFO - BCN
Nonstop11h 20mLufthansa
Deal found 6/11$622
This KLM deal was found by Cheapflights users on 6/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/237:40 pmBCN - SFO
1 stop25h 05mKLM
Mon 7/79:35 amSFO - BCN
1 stop17h 20mKLM
Deal found 6/10$641
This British Airways deal was found by Cheapflights users on 6/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/241:30 pmBCN - SFO
1 stop18h 29mBritish Airways
Tue 9/94:30 pmSFO - BCN
1 stop14h 10mBritish Airways
Deal found 6/10$653
This Bookaflight.co.il deal was found by Cheapflights users on 6/10. 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 Bookaflight.co.il is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/249:00 amBCN - SFO
1 stop19h 05mVirgin Atlantic
Sat 8/27:05 amSFO - BCN
1 stop19h 50mVirgin Atlantic
Deal found 6/10$658
This SWISS deal was found by Cheapflights users on 6/11. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/88:00 pmBCN - SFO
2 stops32h 45mSWISS
Mon 7/147:40 pmSFO - BCN
2 stops42h 55mSWISS
Deal found 6/11$663
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/11. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/126:00 amBCN - SFO
1 stop17h 30mTAP AIR PORTUGAL
Sat 7/57:20 pmSFO - BCN
1 stop17h 30mTAP AIR PORTUGAL
Deal found 6/11$668
This Brussels Airlines deal was found by Cheapflights users on 6/10. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:20 pmBCN - SFO
2 stops24h 20mBrussels Airlines
Sun 10/52:40 pmSFO - BCN
2 stops20h 50mBrussels Airlines
Deal found 6/10$687

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 June 12, 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

Sat 10/18

7:40 am-11:55 pm

2 stops25h 15m

San Francisco

Wed 10/29

6:30 pm-9:10 am

1 stop30h 40m

$611

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 10/16

6:50 am-11:09 pm

2 stops25h 19m

San Francisco

Tue 11/4

10:46 am-2:45 pm

2 stops18h 59m

$613

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 10/20

6:50 am-7:44 pm

2 stops21h 54m

San Francisco

Sun 11/2

7:00 am-1:05 pm

1 stop21h 05m

$614

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 10/18

2:05 pm-6:10 pm

Nonstop13h 05m

San Francisco

Sat 11/1

9:32 am-9:00 am

1 stop15h 28m

$615

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 9/13

9:00 am-10:00 pm

1 stop22h 00m

San Francisco

Sun 9/21

7:00 am-9:00 am

2 stops17h 00m

$620

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 6/23

4:00 pm-7:05 pm

Nonstop12h 05m

San Francisco

Mon 7/7

5:40 pm-2:00 pm

Nonstop11h 20m

$622

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 6/23

7:40 pm-11:45 am

1 stop25h 05m

San Francisco

Mon 7/7

9:35 am-11:55 am

1 stop17h 20m

$641

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sun 8/24

1:30 pm-10:59 pm

1 stop18h 29m

San Francisco

Tue 9/9

4:30 pm-3:40 pm

1 stop14h 10m

$653

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 7/24

9:00 am-7:05 pm

1 stop19h 05m

San Francisco

Sat 8/2

7:05 am-11:55 am

1 stop19h 50m

$658

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 7/8

8:00 pm-7:45 pm

2 stops32h 45m

San Francisco

Mon 7/14

7:40 pm-11:35 pm

2 stops42h 55m

$663

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 9, 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 $364). 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 June 12, 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 34% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Barcelona-El Prat Airport to San Francisco?

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

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

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 June 12, 2025.

The most flights from BCN to SFO 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).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Austrian Airlines from Barcelona to San Francisco to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

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
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

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
802 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

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
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

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
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,946 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

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 $611. Other airlines that can offer you cheap pricing are Air Canada, from $613, and United Airlines, from $614.

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

    For one-way options, check prices for Vueling. According to our data, you can fly for as low as $343. Users have also found prices from $432 and $451 on Iberia and TAP AIR PORTUGAL, 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: American Airlines (86%), Vueling (83%), Finnair (83%).

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

    On average you can expect to pay $1,379 for a flight from Barcelona-El Prat Airport to San Francisco. The cheapest flight overall is $269 while the most popular route, (Barcelona-El Prat - San Francisco) is currently priced at $421.

  • 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 $364). 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 Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Roseville
Mountain View
South San Francisco
Livermore
Turlock
Santa Cruz
Manteca
Fairfield
Watsonville
Antioch
Hollister
Milpitas
Newark
Hayward
Alameda
Sunnyvale
Daly City
Union City
Campbell
Capitola

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest$294Average$848FlexibilityNo cancel feeOn-time88%
British AirwaysCheapest$381Average$381FlexibilityNo cancel feeOn-time70%
DeltaCheapest$401Average$638FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$405Average$747FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$407Average$522FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$409Average$667FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$413Average$636FlexibilityNo cancel feeOn-time69%
SWISSCheapest$416Average$605FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$455Average$836FlexibilityNo cancel feeOn-time76%
IberiaCheapest$545Average$845FlexibilityNo cancel feeOn-time77%

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