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Cheap flights from Barcelona-El Prat Airport to San Francisco from $366

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona-El Prat Airport to San Francisco departing on 3/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Barcelona-El Prat Airport to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
7:50 pm - 4:30 pm
BCN
-
SFO
29h 40m
1 stop
SWISS Logo
8:25 pm - 11:00 pm
SFO
-
BCN
18h 35m
1 stop
$529SWISS
Wed, Feb 18 - Wed, Mar 11
Iberia Logo
6:40 am - 10:40 pm
BCN
-
SFO
25h 00m
2 stops
Iberia Logo
10:36 am - 7:45 pm
SFO
-
BCN
25h 09m
2 stops
$531Iberia
Tue, Feb 17 - Mon, Mar 9
United Airlines Logo
10:15 am - 7:50 pm
BCN
-
SFO
18h 35m
2 stops
United Airlines Logo
1:45 pm - 10:25 pm
SFO
-
BCN
23h 40m
1 stop
$532United Airlines
Tue, Apr 21 - Fri, May 1
British Airways Logo
12:30 pm - 10:49 pm
BCN
-
SFO
19h 19m
1 stop
British Airways Logo
6:30 pm - 6:25 pm
SFO
-
BCN
15h 55m
1 stop
$533British Airways
Wed, Mar 4 - Wed, Mar 11
British Airways Logo
12:50 pm - 9:19 pm
BCN
-
SFO
17h 29m
1 stop
British Airways Logo
4:35 pm - 4:00 pm
SFO
-
BCN
14h 25m
1 stop
$534British Airways
Sat, Apr 18 - Thu, Apr 30
Delta Logo
11:10 am - 11:25 pm
BCN
-
SFO
21h 15m
2 stops
Delta Logo
11:02 am - 2:00 pm
SFO
-
BCN
17h 58m
2 stops
$535Delta
Sat, Jan 31 - Fri, Feb 6
Iberia Logo
9:35 am - 10:01 pm
BCN
-
SFO
20h 26m
1 stop
Iberia Logo
11:30 am - 7:05 pm
SFO
-
BCN
23h 35m
2 stops
$536Iberia
Tue, Mar 10 - Sun, Mar 22
United Airlines Logo
10:30 am - 7:25 pm
BCN
-
SFO
16h 55m
1 stop
United Airlines Logo
11:20 pm - 8:20 am
SFO
-
BCN
24h 00m
1 stop
$537United Airlines
Wed, Mar 25 - Sun, Apr 12
Multiple Airlines Logo
1:35 pm - 12:20 pm
BCN
-
SFO
31h 45m
2 stops
Multiple Airlines Logo
5:10 am - 9:35 am
SFO
-
BCN
19h 25m
2 stops
$538Multiple Airlines
Mon, Feb 2 - Mon, Feb 16
Air Canada Logo
12:15 pm - 9:21 pm
BCN
-
SFO
18h 06m
1 stop
Air Canada Logo
1:20 pm - 5:55 pm
SFO
-
BCN
19h 35m
2 stops
$539Air Canada
Tue, Apr 14 - Tue, Apr 21

SWISS flights from Barcelona-El Prat Airport to San Francisco

Our best SWISS deals on Barcelona-El Prat Airport to San Francisco flight tickets
SWISS
Feb 18
BCN7:50 pmBarcelona-El Prat
29h 40m
1 stop
SFO4:30 pmSan Francisco
Mar 11
SFO8:25 pmSan Francisco
18h 35m
1 stop
BCN11:00 pmBarcelona-El Prat
$529
SWISS
Mar 6
BCN7:50 pmBarcelona-El Prat
29h 40m
1 stop
SFO4:30 pmSan Francisco
Mar 13
SFO1:50 pmSan Francisco
25h 10m
2 stops
BCN11:00 pmBarcelona-El Prat
$550

Iberia flights from Barcelona-El Prat Airport to San Francisco

Our best Iberia deals on Barcelona-El Prat Airport to San Francisco flight tickets
Iberia
Feb 17
BCN6:40 amBarcelona-El Prat
25h 00m
2 stops
SFO10:40 pmSan Francisco
Mar 9
SFO10:36 amSan Francisco
25h 09m
2 stops
BCN7:45 pmBarcelona-El Prat
$531
Iberia
Feb 2
BCN6:40 amBarcelona-El Prat
27h 07m
2 stops
SFO12:47 amSan Francisco
Feb 16
SFO8:00 amSan Francisco
15h 50m
1 stop
BCN8:50 amBarcelona-El Prat
$534
Iberia
Mar 10
BCN9:35 amBarcelona-El Prat
20h 26m
1 stop
SFO10:01 pmSan Francisco
Mar 22
SFO11:30 amSan Francisco
23h 35m
2 stops
BCN7:05 pmBarcelona-El Prat
$536

momondo Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat Airport 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, momondo users made 832,500 searches. Data last updated January 20, 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

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 2/18

7:50 pm-4:30 pm

1 stop29h 40m

San Francisco

Wed 3/11

8:25 pm-11:00 pm

1 stop18h 35m

$529

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 2/17

6:40 am-10:40 pm

2 stops25h 00m

San Francisco

Mon 3/9

10:36 am-7:45 pm

2 stops25h 09m

$531

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 4/21

10:15 am-7:50 pm

2 stops18h 35m

San Francisco

Fri 5/1

1:45 pm-10:25 pm

1 stop23h 40m

$532

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 3/4

12:30 pm-10:49 pm

1 stop19h 19m

San Francisco

Wed 3/11

6:30 pm-6:25 pm

1 stop15h 55m

$533

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 4/18

12:50 pm-9:19 pm

1 stop17h 29m

San Francisco

Thu 4/30

4:35 pm-4:00 pm

1 stop14h 25m

$534

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Sat 1/31

11:10 am-11:25 pm

2 stops21h 15m

San Francisco

Fri 2/6

11:02 am-2:00 pm

2 stops17h 58m

$535

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 3/10

9:35 am-10:01 pm

1 stop20h 26m

San Francisco

Sun 3/22

11:30 am-7:05 pm

2 stops23h 35m

$536

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Wed 3/25

10:30 am-7:25 pm

1 stop16h 55m

San Francisco

Sun 4/12

11:20 pm-8:20 am

1 stop24h 00m

$537

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Mon 2/2

1:35 pm-12:20 pm

2 stops31h 45m

San Francisco

Mon 2/16

5:10 am-9:35 am

2 stops19h 25m

$538

BarcelonaSan Francisco

BCN - SFO

BCNSFO

Barcelona-El Prat

Tue 4/14

12:15 pm-9:21 pm

1 stop18h 06m

San Francisco

Tue 4/21

1:20 pm-5:55 pm

2 stops19h 35m

$539

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Barcelona-El Prat Airport to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $549.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Barcelona-El Prat Airport to San Francisco is on a Wednesday when prices can be found for as low as $641. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $798.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Barcelona-El Prat Airport to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $675. Flights in the afternoon are often more expensive with an average ticket price of $710.

What is the cheapest Barcelona-El Prat to San Francisco flight route?

Fly from Barcelona-El Prat to San Francisco for the best Barcelona-El Prat - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Barcelona-El Prat Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $640 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Barcelona-El Prat Airport for as low as $567 on momondo.

What cabin class options are available on Barcelona-El Prat to San Francisco flights?

There are 3 cabin classes available to choose from on Barcelona-El Prat to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Barcelona-El Prat Airport to San Francisco flights?

No. A direct flight is the cheapest option for a flight between Barcelona-El Prat Airport to San Francisco.

How have Barcelona-El Prat Airport to San Francisco flight prices changed over time?

As of January 2026, prices for Barcelona-El Prat Airport to San Francisco flights are approximately 10% cheaper when compared to flights at the same time last year.

When to book flights from Barcelona-El Prat Airport to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Barcelona-El Prat Airport to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Barcelona-El Prat Airport to San Francisco (BCN to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Barcelona-El Prat Airport to San Francisco

Best Price Found

$348

Fastest flight time

12h 10m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Barcelona-El Prat Airport in the past 72 hours is $348. The best round-trip flight deal from Barcelona-El Prat Airport to San Francisco found on momondo in the last 72 hours is $666.
The fastest flight from Barcelona-El Prat Airport to San Francisco takes 12h 10m
Direct flights go from Barcelona-El Prat Airport to San Francisco every day.
There is 1 airport in San Francisco. From Barcelona-El Prat Airport there are direct flights to San Francisco (SFO).
Search flight deals

  • How far is Barcelona-El Prat to San Francisco by plane?

    The distance between Barcelona-El Prat and San Francisco is about 5944.3 mi. In terms of flight time, this usually takes a little over 12h 10m.

  • When did momondo last update prices for flights from Barcelona-El Prat Airport to San Francisco Airport?

    Prices for flights from Barcelona-El Prat Airport to San Francisco Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Barcelona-El Prat Airport to San Francisco Airport?

  • How old do you have to be to fly from Barcelona-El Prat Airport to San Francisco Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Barcelona-El Prat Airport to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Barcelona-El Prat Airport to San Francisco?

  • What is the most popular airline from Barcelona-El Prat Airport to San Francisco?

Best airlines flying from Barcelona-El Prat Airport to San Francisco

Compare and see reviews for airlines that fly from Barcelona-El Prat Airport to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $285Free CancellationRating
7.1
2,123 reviews
Search TAP AIR PORTUGAL flights
VuelingPriceFrom $294Free CancellationRating
7.1
1,235 reviews
Search Vueling flights
British AirwaysPriceFrom $381Free CancellationRating
6.7
7,690 reviews
Search British Airways flights
United AirlinesPriceFrom $382Free CancellationRating
7.4
9,189 reviews
Search United Airlines flights
SWISSPriceFrom $416Free CancellationRating
7.5
1,855 reviews
Search SWISS flights
LufthansaPriceFrom $438Free CancellationRating
6.8
7,736 reviews
Search Lufthansa flights
KLMPriceFrom $443Free CancellationRating
7.7
1,442 reviews
Search KLM flights
DeltaPriceFrom $499Free CancellationRating
7.9
8,085 reviews
Search Delta flights
LEVELPriceFrom $501Free CancellationRating
0.0
Search LEVEL flights
LEVELPriceFrom $504Free CancellationRating
0.0
0 reviews
Search LEVEL flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Hayward
Calistoga
Big Sur
Santa Clara
Berkeley
Walnut Creek
Fremont
Daly City
Half Moon Bay
Salinas
Vallejo
Livermore
Sunnyvale
Turlock

Why use momondo?

Why should I use momondo to find a flight deal from Barcelona to San Francisco?

It is quick and easy to find Barcelona to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

Can I find flights from Barcelona to San Francisco with flexible booking policies on momondo?

Flights from Barcelona to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Barcelona to San Francisco?

Once all potential Barcelona to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Barcelona to San Francisco right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Barcelona and alert you when they change.

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