BCN - SFO

$322 Find Cheap Flights from Barcelona to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Barcelona-El Prat to San Francisco departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Barcelona to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Barcelona to San Francisco.
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Flights Deals

Cheap Flights from Barcelona-El Prat to San Francisco (BCN-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Barcelona-El Prat to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Barcelona-El Prat to San Francisco

Thu, Oct 16 - Thu, Oct 23
TAP AIR PORTUGAL Logo
6:00 am - 2:30 pmBCN-SFO
17h 30m1 stop
TAP AIR PORTUGAL Logo
4:20 pm - 7:20 pmSFO-BCN
18h 00m1 stop
$420TAP AIR PORTUGAL
Find Deal
Mon, Sep 22 - Mon, Oct 13
TAP AIR PORTUGAL Logo
10:40 pm - 1:35 pmBCN-SFO
23h 55m1 stop
TAP AIR PORTUGAL Logo
4:20 pm - 9:50 pmSFO-BCN
20h 30m1 stop
$421TAP AIR PORTUGAL
Find Deal
Wed, Nov 5 - Thu, Nov 20
Lufthansa Logo
6:50 am - 12:35 pmBCN-SFO
14h 45m1 stop
Lufthansa Logo
9:40 pm - 11:05 pmSFO-BCN
16h 25m1 stop
$430Lufthansa
Find Deal
Wed, Nov 5 - Thu, Nov 20
Lufthansa Logo
6:50 am - 12:35 pmBCN-SFO
14h 45m1 stop
Lufthansa Logo
9:40 pm - 11:05 pmSFO-BCN
16h 25m1 stop
$433Lufthansa
Find Deal
Tue, Sep 30 - Mon, Oct 20
United Airlines Logo
6:50 am - 3:28 pmBCN-SFO
17h 38m2 stops
United Airlines Logo
5:30 pm - 2:00 pmSFO-BCN
11h 30mnonstop
$439United Airlines
Find Deal
Wed, Nov 5 - Thu, Nov 20
United Airlines Logo
6:50 am - 7:12 pmBCN-SFO
21h 22m2 stops
United Airlines Logo
6:00 am - 9:35 amSFO-BCN
18h 35m2 stops
$446United Airlines
Find Deal
Sat, Oct 18 - Sun, Nov 2
KLM Logo
7:40 pm - 11:45 amBCN-SFO
25h 05m1 stop
KLM Logo
5:00 am - 7:40 amSFO-BCN
17h 40m1 stop
$473KLM
Find Deal
Mon, Aug 25 - Sat, Sep 13
Iberia Logo
9:10 pm - 4:10 pmBCN-SFO
28h 00m1 stop
Iberia Logo
6:10 am - 6:45 amSFO-BCN
15h 35m1 stop
$508Iberia
Find Deal
Tue, Aug 26 - Mon, Oct 6
Iberia Logo
1:30 pm - 10:59 pmBCN-SFO
18h 29m1 stop
Iberia Logo
4:35 pm - 10:40 pmSFO-BCN
21h 05m1 stop
$511Iberia
Find Deal
Sat, Nov 15 - Sat, Nov 29
KLM Logo
11:10 am - 11:50 amBCN-SFO
33h 40m1 stop
KLM Logo
1:50 pm - 11:05 pmSFO-BCN
24h 15m1 stop
$512KLM
Find Deal
Expert advice

Expert advice for your flight from Barcelona-El Prat to San Francisco

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
BCN

Prepare for long security lines at BCN. Arrive three hours early for non-Schengen flights to ensure a smooth departure.

Read more about BCNby Blane Bachelor
SFO

Use BART for a cost-effective ride from SFO to San Francisco. It's a short walk from the International Terminal.

Read more about SFOby Blane Bachelor
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on BCN and SFO

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Useful Info

KAYAK's insights & trends for Barcelona-El Prat to San Francisco flights

Get data-powered insights and trends into flights from Barcelona-El Prat to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Barcelona-El Prat to San Francisco?

The average price of all round-trip flights from Barcelona-El Prat Airport to San Francisco clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to San Francisco on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from Barcelona-El Prat to San Francisco. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Barcelona-El Prat Airport to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Barcelona-El Prat Airport to San Francisco is February, where tickets cost $409 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $839 and $798 respectively.

Can I save money by flying with a layover from Barcelona-El Prat Airport to San Francisco?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $2,170 on average.

How far in advance should I book a flight from Barcelona-El Prat Airport to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Barcelona-El Prat Airport to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Barcelona-El Prat Airport to San Francisco, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$322
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 37% increase in price.
Flight from Barcelona-El Prat to San Francisco

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

Are your dates flexible? Find out the best times to travel from Barcelona-El Prat to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Barcelona-El Prat to San Francisco flights

  • Are airlines operating between Barcelona and San Francisco environmentally sustainable?

    Sustainability services on flights from Barcelona to San Francisco can vary depending on the airline operating the route. Finnair offers several sustainability services to reduce its environmental impact. These include carbon offset programs, biofuel usage, waste reduction, and recycling initiatives, and minimizing single-use plastics. The airline also focuses on fuel efficiency, sustainable procurement practices, and environmental awareness training for its employees to promote sustainability in its operations.

  • Which airlines operating from Barcelona to San Francisco offer kid-friendly amenities?

    Several airlines operating from Barcelona to San Francisco offer kid-friendly amenities to enhance the travel experience for young passengers. Lufthansa Airlines offers various kid amenities to make the flying experience more enjoyable for young passengers. These can include children's meals, activity kits, toys, games, and in-flight entertainment specifically designed for kids. Lufthansa also provides bassinets for infants and offers special assistance for families traveling with children.

  • What is the checked baggage allowance on flights from Barcelona to San Francisco?

    The checked baggage policy on flights from Barcelona to San Francisco can vary depending on the airline operating the route. Each airline may have its own specific baggage allowances, including weight limits, size restrictions, and the number of bags allowed. Delta Airlines' checked baggage policy typically allows passengers to check bags with a maximum weight of 50 lbs and maximum linear dimensions (length + width + height) of 62 inches.

  • Can I get my rental car at San Francisco International Airport (SFO)?

    You can rent a car at San Francisco International Airport (SFO). The airport has a Rental Car Center (RCC) where various car rental companies are located. Upon arrival, you can take the AirTrain Blue Line to the RCC and proceed to the rental car counters to pick up your car. The rental car companies available at SFO include popular providers such as Hertz, Avis, Budget, and Enterprise.

  • What is the cheapest flight from Barcelona-El Prat Airport to San Francisco?

    In the last 3 days, the lowest price for a flight from Barcelona-El Prat Airport to San Francisco was $322 for a one-way ticket and $420 for a round-trip.

  • Do I need a passport to fly between Barcelona-El Prat and San Francisco?

    A passport is required to fly from Barcelona-El Prat to San Francisco.

  • Which airports will I be using when flying from Barcelona-El Prat to San Francisco?

    Barcelona-El Prat airport is called Barcelona-El Prat and the only airport in San Francisco is San Francisco.

  • Which airlines offer Wi-Fi service onboard planes from Barcelona-El Prat to San Francisco?

    All the following airlines offer inflight Wi-Fi service on the Barcelona-El Prat to San Francisco flight route: Iberia, Vueling, Finnair, British Airways, Alaska Airlines, and American Airlines.

  • Which aircraft models fly most regularly from Barcelona-El Prat to San Francisco?

    The Boeing 777 is the aircraft model that flies most regularly on the Barcelona-El Prat to San Francisco flight route.

  • Which airline alliances offer flights from Barcelona-El Prat to San Francisco?

    oneworld, and Star Alliance are the airline alliances operating flights between Barcelona-El Prat and San Francisco, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Barcelona-El Prat to San Francisco?

    There are nonstop flights from Barcelona-El Prat to San Francisco on a daily basis.

  • Which is the best airline for flights from Barcelona to San Francisco, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Barcelona to San Francisco are Delta and KLM. With an average price for the route of $638 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $667 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Barcelona-El Prat to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Barcelona-El Prat to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Barcelona-El Prat to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Barcelona-El Prat is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Barcelona-El Prat to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Barcelona-El Prat with another airline. Booking your flights between Barcelona-El Prat and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Barcelona-El Prat to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Barcelona-El Prat up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Barcelona-El Prat Airport to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $408 or less one-way and $690 or less round-trip.
  • Spanish citizens traveling from Barcelona to San Francisco typically need to obtain a valid Electronic System for Travel Authorization (ESTA) approval through the Visa Waiver Program (VWP) to enter the United States for tourism or business purposes for up to 90 days.
  • Barcelona-El Prat Airport (BCN) occasionally features art exhibitions and installations throughout its terminals, showcasing the works of local and international artists. therefore, if you have some time at the airport, you can explore the exhibitions.
  • To satisfy a variety of dietary requirements and preferences, United Airlines flight from Barcelona to San Francisco offers special meals. These selections range from kosher to vegetarian, vegan, and gluten-free. During the reservation or booking procedure, travelers can make a prior request for certain meals.
  • San Francisco International Airport (SFO) offers several lounges for passengers, where you can relax and unwind upon your arrival. Some of the lounges at SFO include American Airlines Admirals Club in Terminal 2. The lounge offers comfortable seating areas, complimentary Wi-Fi, business centers with workstations, and printing facilities.
  • If you are flying from Barcelona to San Francisco, you will most likely opt for connecting flights. Several airlines offer layovers like Air France, Lufthansa, British Airways, and Turkish Airlines. These airlines usually have their layovers at Istanbul Airport (IST), Frankfurt Airport (FRA), and London Heathrow Airport (LHR).

Prefer to fly direct from Barcelona-El Prat to San Francisco?

Find which airlines fly direct from Barcelona-El Prat Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

Barcelona-El Prat to San Francisco

Monday

Lufthansa, United Airlines

Lufthansa, United Airlines

Tuesday

Iberia, Lufthansa, United Airlines, +1 more

Iberia, Lufthansa, +2 more

Wednesday

Lufthansa, United Airlines

Lufthansa, United Airlines

Thursday

Iberia, Lufthansa, United Airlines, +1 more

Iberia, Lufthansa, +2 more

Friday

Lufthansa, United Airlines

Lufthansa, United Airlines

Saturday

Iberia, Lufthansa, United Airlines, +1 more

Iberia, Lufthansa, +2 more

Sunday

Iberia, Lufthansa, United Airlines, +2 more

Iberia, Lufthansa, +3 more

See more direct flights

Direct returns

San Francisco to Barcelona-El Prat

Monday

Lufthansa, United Airlines

Lufthansa, United Airlines

Tuesday

Iberia, Lufthansa, United Airlines, +1 more

Iberia, Lufthansa, +2 more

Wednesday

Lufthansa, United Airlines

Lufthansa, United Airlines

Thursday

Iberia, Lufthansa, United Airlines, +1 more

Iberia, Lufthansa, +2 more

Friday

Lufthansa, United Airlines

Lufthansa, United Airlines

Saturday

Iberia, Lufthansa, United Airlines, +1 more

Iberia, Lufthansa, +2 more

Sunday

Iberia, Lufthansa, United Airlines, +2 more

Iberia, Lufthansa, +3 more

See more direct flights
See more direct flights

Top 5 airlines serving from Barcelona-El Prat to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Barcelona to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Barcelona-El Prat to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1358 reviews
7.1Entertainment
7.8Boarding
7.2Food
8.4Crew
7.7Comfort
Airline reviews

Klm start boarding while somw air issue in the plan

8.0 ExcellentA, Jun 2025AMS - YYZ
Read more KLM reviews

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Its good expeince but in enternteiment please be like you tube the music i like or movie

I needed to make changes to my flights. When I called customer service, they assisted me with care professionalism.

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

headphone jack didnt work for the first flight and not much variety

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Terrible flight attendant attitude. Average 3-star hotel employee has better hospitality skills. Business class seats are literally a joke. TAP executives should ride business class in other airlines to develop some rudimentary sense of what business class is.

I’ve never had worse food in business class ever!

Checkin was very slow, we had checked in online and hoping we could do a bag drop at the airport. However everyone with checked bags had to queue up and it took over 40mins. Our advice arrive extra early or you will be rushing to the gate.

On time, politeness, food okay but entertneiment mediocre with only old movie and the so called new we’re 2 or 3…

Very pleasant flight, crew was very nice. The flight was really smooth, big plane. The seats are kind of close together, so comfort was just OK. The boarding process on the way back to New York was a little chaotic. It took a long time.There were no announcements, no loudspeaker just one staff yelling out of instructions and a lot of people crowding in before their term to board. So that could really be improved a lot.

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

Awful. I told them to cancel my return flight and they didn’t then charged me +$800 days before the flight for a biz class upgrade bid. When I called to confirm cancellation and get refund on buz class upgrade they said I had to go thru orbitz and it was too late. Scammers. Beware.

Little leg room in business. I am tall and could use more.

Delayed flight because other plane was occupying the gate for longer than expected. Once we boarded the plane had to wait 1 hour before taking off. We. Almost lost our connection flight and the baggage didn’t make it. We had to wait two days to receive our luggage. Hope they improve the timing or work with the airport to get better service.

I’m still missing my bags. I’m soo frustrated

You get what you pay for. In general I like the service and flight attendants.

Excellent! Outstanding customer service, the best service I have received. Food was served, dinner, snacks, beverages, crew was there to greet you. 10/10

Charging $300 to be able to pick a seat next to your wife was nothing less than extortion.

My carry-on bag was taken from me when I boarded. It was checked through to London at no charge. It took a big of shuffling, but I was glad not to need to mind it until baggage claim.

Great to have power available for every seat in Premium Economy. I do wish the WiFi was less expensive. It was 23-24 Euros for the flight for one device. And there were times it was unavailable.

I’m very mad because I paid an extra $105 to change seats to an exit row with more leg room. The app clearly showed a gap in between the seats in the row I changed my seat to and I paid for it. When I boarded the plane, it wasn’t an exit row seat and no more room than my original seat. I feel like I was ripped off $105.

The crew on AA international flights in my experience are generally lazy, rude, and inefficient. These guys did not disappoint.

I had a great experience , crew was great and enjoyed the entertainment options I will be booking my next International trip with them .

Front desk was closed at 6 pm, I was unable to get my boarding pass and as such missed my connecting flight home.

I wish they could put the pre-tsa check on the tickets or global entry.

The food not that great. Did not like the fact that we could not purchase upgrade at the airport

We paid for business class, and my seat did not work at all. Each time I wanted to adjust the position, an attendant had to come to physically force the seat into its new position. They tried to fix it by fiddling with the electronics (military reset, for example), to no avail. Also, the food was just mediocre. We were at the end of a serving section, so they ran out of several choices. (This was on the flight from Los Angeles to Munich.)

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

Food was great but they didn't clear my meal tray for 3 hours. You'd think they could check though the cabin now and then.

Upon arriving at IAH, it was informed that the luggage had not arrived. Still waiting to hear back when it will be delivered.

I wasn’t allowed to board with my children. I was charged outrageous costs for basic carry on size luggage. The entertainment screens were outdated and not user friendly.

I was very happy with everything, thank you for the smooth flight ✈️

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

Everything you need to know for your flight from Barcelona-El Prat to San Francisco

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