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Cheap flights from Barcelona-El Prat Airport to San Francisco from £408

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — SFO
2 Sep — 9 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Barcelona-El Prat to San Francisco

Enter your travel dates to find the best prices.

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 3 August 2026.

Tue 13/1008:00
BCN
-
SFO
1 stop15h 30m
Multiple Airlines
Tue 20/1013:47
SFO
-
BCN
2 stops23h 23m
Multiple Airlines
Deal found 1/8£521
Thu 8/1008:00
BCN
-
SFO
1 stop15h 30m
Condor
Sat 17/1016:30
SFO
-
BCN
1 stop14h 35m
Condor
Deal found 30/7£522
Wed 16/916:05
BCN
-
SFO
Nonstop12h 15m
Multiple Airlines
Wed 23/915:15
SFO
-
BCN
1 stop23h 00m
Multiple Airlines
Deal found 2/8£524
Wed 14/1006:20
BCN
-
SFO
1 stop15h 55m
ITA Airways
Tue 16/316:05
SFO
-
BCN
1 stop15h 50m
ITA Airways
Deal found 30/7£526
Tue 15/917:45
BCN
-
SFO
1 stop29h 50m
Multiple Airlines
Tue 22/905:00
SFO
-
BCN
2 stops18h 00m
Multiple Airlines
Deal found 3/8£526
Wed 7/1017:00
BCN
-
SFO
1 stop30h 30m
Condor
Thu 15/1016:30
SFO
-
BCN
1 stop14h 35m
Condor
Deal found 30/7£537
Fri 11/906:20
BCN
-
SFO
1 stop15h 55m
ITA Airways
Thu 24/915:15
SFO
-
BCN
1 stop15h 40m
ITA Airways
Deal found 3/8£537
Fri 11/906:20
BCN
-
SFO
1 stop15h 55m
ITA Airways
Sat 19/915:15
SFO
-
BCN
1 stop15h 40m
ITA Airways
Deal found 3/8£539
Mon 26/1016:50
BCN
-
SFO
1 stop29h 15m
ITA Airways
Thu 5/1115:05
SFO
-
BCN
1 stop15h 50m
ITA Airways
Deal found 30/7£540
Tue 6/1006:40
BCN
-
SFO
2 stops17h 41m
United Airlines
Mon 19/1017:55
SFO
-
BCN
Nonstop11h 25m
United Airlines
Deal found 30/7£540
Mon 5/1006:20
BCN
-
SFO
1 stop15h 55m
ITA Airways
Sun 18/1015:15
SFO
-
BCN
1 stop15h 40m
ITA Airways
Deal found 30/7£541
Fri 4/922:40
BCN
-
SFO
1 stop27h 55m
TAP AIR PORTUGAL
Sat 12/919:35
SFO
-
BCN
1 stop30h 00m
TAP AIR PORTUGAL
Deal found 31/7£543

Find 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 3 August 2026.

Round-trip from

£521

One-way from

£408

Popular in

July

Cheapest in

January

Average price

£629
13/10-20/10
  • 13/10-20/10
  • 3 total stops
  • 38h 53m total
  • Barcelona to San Francisco
Search Deals
KLM
  • KLM
  • 21/9
  • 1 total stop
  • 14h 25m total
  • Barcelona to San Francisco
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£110 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 3 August 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 29/8

06:20-16:56

2 stops19h 36m

San Francisco

Mon 14/9

11:58-15:35

2 stops18h 37m

£540

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 6/10

06:40-15:20

1 stop17h 40m

San Francisco

Thu 15/10

08:10-08:00

1 stop14h 50m

£543

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 29/8

06:40-15:15

1 stop17h 35m

San Francisco

Mon 14/9

17:55-14:20

Nonstop11h 25m

£544

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 1/9

11:10-21:47

2 stops19h 37m

San Francisco

Sat 12/9

10:29-11:15

2 stops15h 46m

£549

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 2/9

06:20-11:45

1 stop14h 25m

San Francisco

Wed 9/9

14:20-18:50

2 stops19h 30m

£554

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 11/9

15:45-19:00

Nonstop12h 15m

San Francisco

Sat 19/9

12:00-13:15

1 stop16h 15m

£555

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 11/9

13:25-23:57

2 stops19h 32m

San Francisco

Sun 20/9

11:58-14:50

2 stops17h 52m

£555
Fastest return journey

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 16/9

16:05-19:20

Nonstop12h 15m

San Francisco

Tue 22/9

14:25-14:05

1 stop14h 40m

£555

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 12/9

06:20-16:58

2 stops19h 38m

San Francisco

Fri 18/9

21:43-08:35

1 stop25h 52m

£574
Cheapest one-way

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Fri 2/10

06:20-18:09

2 stops20h 49m

£412

Flights are sorted by cheapest return flights first.

Deals found on 30/7

Showing 1-10 of 19 resultsSorted by cheapest first
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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?

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 70 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, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Francisco (average of £433). Flying from Barcelona-El Prat Airport to San Francisco in July is currently the most expensive (average of £688). 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 3 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Barcelona-El Prat Airport to San Francisco as you normally would.

How much does it cost for a return flight from Barcelona-El Prat Airport to San Francisco?

Airfare is below average for this route at the moment.

Barcelona-El Prat Airport to San Francisco flights typically cost between £557 and £723 in October.
The cheapest return price found within the last 5 days was £521 on Multiple Airlines (13 Oct–20 Oct).

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 11.0 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 3 inbound flights from Barcelona-El Prat per day. 0 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?

    Delta and United Airlines can get you from Barcelona-El Prat Airport to San Francisco in just under 14h 25m. Your travel time can differ by up to 6h 20m. Barcelona-El Prat Airport and San Francisco are separated by a distance of 5952 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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: Air Canada (63%), United Airlines (63%), Lufthansa (63%).

  • 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, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to San Francisco (average of £433). Flying from Barcelona-El Prat Airport to San Francisco in July is currently the most expensive (average of £688). 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 San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
San Bruno
Newark
Bodega Bay
Sunnyvale
South San Francisco

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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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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