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Cheap flights from Barcelona-El Prat Airport to San Francisco from £344

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 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SFO
18 Jun — 25 Jun1
1 adult

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 Tuesday or Monday and return on a Monday

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 13 June 2025.

Round-trip from

£464

One-way from

£344

Popular in

July

Cheapest in

February

Average price

£587
United Airlines
  • United Airlines
  • 24/6-10/7
  • 2 total stops
  • 31h 17m total
  • Barcelona to San Francisco
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Iberia
  • Iberia
  • 30/9
  • Nonstop
  • 13h 05m total
  • Barcelona to San Francisco
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Highest demand for flights based on searches. 23% potential increase in price (£103 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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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 13 June 2025.

Mon 15/1206:45BCN - SFO
1 stop16h 50mTAP AIR PORTUGAL
Mon 29/1216:35SFO - BCN
1 stop18h 45mTAP AIR PORTUGAL
Deal found 12/6£462
Tue 24/612:10BCN - SFO
1 stop16h 47mUnited Airlines
Thu 10/708:20SFO - BCN
1 stop14h 30mUnited Airlines
Deal found 11/6£464
Tue 1/708:00BCN - SFO
1 stop16h 55mLufthansa
Tue 8/707:00SFO - BCN
1 stop17h 00mLufthansa
Deal found 12/6£467
Thu 3/709:40BCN - SFO
2 stops20h 14mSWISS
Wed 16/719:30SFO - BCN
1 stop19h 05mSWISS
Deal found 11/6£467
Mon 23/606:20BCN - SFO
1 stop14h 25mDelta
Mon 7/713:45SFO - BCN
2 stops18h 25mDelta
Deal found 12/6£470
Thu 17/713:15BCN - SFO
2 stops29h 10mAir Canada
Mon 21/705:00SFO - BCN
2 stops17h 50mAir Canada
Deal found 13/6£481
Fri 11/709:30BCN - SFO
2 stops23h 05mVirgin Atlantic
Fri 18/721:00SFO - BCN
1 stop24h 00mVirgin Atlantic
Deal found 13/6£508
Sat 18/1014:05BCN - SFO
Nonstop13h 05mFinnair
Mon 20/1010:25SFO - BCN
1 stop14h 45mFinnair
Deal found 13/6£513
Mon 28/713:15BCN - SFO
1 stop30h 23mMultiple Airlines
Mon 4/817:40SFO - BCN
Nonstop11h 20mMultiple Airlines
Deal found 12/6£520
Thu 12/616:50BCN - SFO
1 stop29h 35mITA Airways
Tue 24/615:15SFO - BCN
1 stop15h 40mITA Airways
Deal found 11/6£551

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 13 June 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

Tue 24/6

12:10-19:57

1 stop16h 47m

San Francisco

Thu 10/7

08:20-07:50

1 stop14h 30m

£464

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 3/7

09:40-20:54

2 stops20h 14m

San Francisco

Wed 16/7

19:30-23:35

1 stop19h 05m

£467

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 23/6

06:20-11:45

1 stop14h 25m

San Francisco

Mon 7/7

13:45-17:10

2 stops18h 25m

£470

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Thu 17/7

13:15-09:25

2 stops29h 10m

San Francisco

Mon 21/7

05:00-07:50

2 stops17h 50m

£481

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 23/6

16:00-19:05

Nonstop12h 05m

San Francisco

Sun 13/7

17:40-14:00

Nonstop11h 20m

£486

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 11/7

09:30-23:35

2 stops23h 05m

San Francisco

Fri 18/7

21:00-06:00

1 stop24h 00m

£508

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 18/10

14:05-18:10

Nonstop13h 05m

San Francisco

Tue 21/10

10:52-13:20

1 stop17h 28m

£513

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 28/7

13:15-10:38

1 stop30h 23m

San Francisco

Mon 4/8

17:40-14:00

Nonstop11h 20m

£520

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 30/8

20:40-12:40

2 stops25h 00m

San Francisco

Thu 11/9

14:40-19:50

2 stops20h 10m

£534

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 1/9

17:45-16:45

2 stops32h 00m

San Francisco

Tue 2/9

18:45-10:35

2 stops30h 50m

£567

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 24 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 9 June 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 13 June 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 17% on the cost of your flight, compared to a flight in the afternoon.

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 13 June 2025.

The most flights from BCN to SFO are scheduled on a Tuesday (3 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 - 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 13 June 2025.
Read reviews from past customers who have flown Delta, KLM and Austrian Airlines 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
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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
1,624 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

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. 0 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?

    United Airlines, at £464, was found to be the cheapest airline from Barcelona-El Prat Airport to San Francisco.Alternate airlines flying return to your destination include SWISS and Delta.

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

    £344 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on TAP AIR PORTUGAL and WestJet, with prices starting from £354 and £468, 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%).

  • 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
Vallejo
Newark
South San Francisco
Pacific Grove
Union City

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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

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

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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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