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Cheap flights from Barcelona-El Prat Airport to San Francisco from £251

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SFO
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

£430

One-way from

£251

Popular in

July

Cheapest in

February

Average price

£433

Good round-trip deal

£459 or less
SWISS
  • SWISS
  • 30/8-14/9
  • 2 total stops
  • 34h 35m total
  • Barcelona to San Francisco
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 10/6
  • 1 total stop
  • 27h 25m total
  • Barcelona to San Francisco
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£111 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£15 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip 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 30 April 2025.

Sat 30/809:40BCN - SFO
1 stop15h 30mSWISS
Sun 14/919:30SFO - BCN
1 stop19h 05mSWISS
Deal found 29/4£430
Mon 19/516:00BCN - SFO
Nonstop12h 05mMultiple Airlines
Mon 26/519:30SFO - BCN
1 stop14h 40mMultiple Airlines
Deal found 28/4£430
Thu 16/1009:20BCN - SFO
2 stops22h 53mDelta
Fri 24/1013:59SFO - BCN
2 stops18h 11mDelta
Deal found 29/4£431
Mon 26/506:50BCN - SFO
1 stop14h 50mLufthansa
Mon 2/621:05SFO - BCN
1 stop15h 35mLufthansa
Deal found 28/4£434
Tue 20/506:50BCN - SFO
2 stops17h 45mUnited Airlines
Tue 27/505:05SFO - BCN
2 stops18h 15mUnited Airlines
Deal found 29/4£444
Tue 26/822:40BCN - SFO
1 stop24h 55mTAP AIR PORTUGAL
Mon 6/1016:20SFO - BCN
1 stop15h 35mTAP AIR PORTUGAL
Deal found 29/4£446
Sat 13/914:05BCN - SFO
Nonstop13h 05mFinnair
Sun 21/920:10SFO - BCN
Nonstop11h 35mFinnair
Deal found 29/4£485
Mon 25/810:00BCN - SFO
2 stops42h 00mAustrian Airlines
Sun 5/1008:40SFO - BCN
2 stops26h 10mAustrian Airlines
Deal found 29/4£497
Thu 29/519:40BCN - SFO
1 stop25h 05mKLM
Sun 8/607:00SFO - BCN
1 stop19h 55mKLM
Deal found 29/4£505
Fri 23/509:30BCN - SFO
2 stops22h 08mVirgin Atlantic
Sat 31/505:50SFO - BCN
2 stops16h 25mVirgin Atlantic
Deal found 29/4£506
Mon 5/512:25BCN - SFO
2 stops22h 09mITA Airways
Sat 17/515:15SFO - BCN
1 stop23h 00mITA Airways
Deal found 29/4£513
Thu 15/519:00BCN - SFO
2 stops37h 09mScandinavian Airlines
Mon 16/609:11SFO - BCN
2 stops23h 59mScandinavian Airlines
Deal found 28/4£542

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 30 April 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 30/8

09:40-16:10

1 stop15h 30m

San Francisco

Sun 14/9

19:30-23:35

1 stop19h 05m

£430

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 19/5

16:00-19:05

Nonstop12h 05m

San Francisco

Mon 26/5

19:30-19:10

1 stop14h 40m

£430

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 16/10

06:20-17:50

2 stops20h 30m

San Francisco

Fri 24/10

10:10-14:50

2 stops19h 40m

£431

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 26/5

06:50-12:40

1 stop14h 50m

San Francisco

Mon 2/6

21:05-21:40

1 stop15h 35m

£434

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 20/5

06:50-15:35

2 stops17h 45m

San Francisco

Tue 27/5

05:05-08:20

2 stops18h 15m

£444

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 26/8

22:40-14:35

1 stop24h 55m

San Francisco

Mon 6/10

16:20-16:55

1 stop15h 35m

£446

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 13/9

14:05-18:10

Nonstop13h 05m

San Francisco

Sun 21/9

20:10-16:45

Nonstop11h 35m

£485

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 25/8

10:00-19:00

2 stops42h 00m

San Francisco

Sun 5/10

08:40-19:50

2 stops26h 10m

£497

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 29/5

19:40-11:45

1 stop25h 05m

San Francisco

Sun 8/6

07:00-11:55

1 stop19h 55m

£505

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 23/5

09:30-22:38

2 stops22h 08m

San Francisco

Sat 31/5

05:50-07:15

2 stops16h 25m

£506

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 26 results
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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 return 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 return flight from Barcelona-El Prat to San Francisco. Price data was last updated on 25 April 2025.

To ensure you get the cheapest price possible for a flight from Barcelona-El Prat Airport to San Francisco, you should look to book at least 35 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Francisco (average of £538). Flying from Barcelona-El Prat Airport to San Francisco in July is currently the most expensive (average of £803). 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 30 April 2025.

It’s optimal to fly from Barcelona-El Prat Airport to San Francisco in the morning. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the afternoon.

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 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 30 April 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Barcelona to San Francisco. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

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
7,934 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

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
1,334 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

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
1,275 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

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
780 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

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
1,588 reviews
Delta
8.0
Very Good
7,934 reviews
Check prices

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

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 0 inbound flights from Barcelona-El Prat per day. 1 airline has 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?

    SWISS, at £430, was found to be the cheapest airline from Barcelona-El Prat Airport to San Francisco.Alternate airlines flying return to your destination include Delta and Lufthansa. SWISS is priced at 3% lower than the current average price of a flight leaving 3 months from now.

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

    £251 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Iberia and WestJet, with prices starting from £342 and £461, 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 (100%), Qatar Airways (100%), Alaska Airlines (100%).

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

    While on average a flight from Barcelona-El Prat Airport to San Francisco is generally £459, our data shows the cheapest flight currently is £342. When looking at the most popular route, (Barcelona-El Prat - San Francisco), you can expect to pay £557 for that flight.

  • 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 holiday 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, February is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Francisco (average of £538). Flying from Barcelona-El Prat Airport to San Francisco in July is currently the most expensive (average of £803). 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

Travelling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Santa Cruz
Los Banos
Vallejo
Newark
South San Francisco
Pacific Grove
Union City

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Barcelona-El Prat to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Barcelona-El Prat to Los Angeles flights

Top airline flying from Barcelona-El Prat to San Francisco

Discover the top airline 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 858,174 searches. Data last updated 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£243Average£527FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Barcelona-El Prat to San Francisco?

Deals for Barcelona-El Prat to San Francisco flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Barcelona-El Prat to San Francisco?

Cheapflights helps you find that perfect flight to San Francisco from Barcelona-El Prat by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Barcelona-El Prat to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from Barcelona-El Prat shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Barcelona-El Prat to San Francisco become cheaper?

Not ready to book yet? You can track prices for flights from Barcelona-El Prat to San Francisco on Cheapflights with our Price Alert feature and get notified when better prices are available.

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