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Find cheap flights from Spain to San Francisco from $252

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Francisco departing on 9/12. 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
0 bags
dom. 5/26
dom. 6/2

Search 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 for flights to San Francisco
These are the airlines KAYAK users have selected most often from within our search results for flights to San Francisco
In the last 7 days travelers have searched 44,738,066 times on KAYAK, and here is why:

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Flights to San Francisco - Travel Insights & Trends

Get data-powered insights and trends for flights to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to San Francisco?

The average price of all flights to San Francisco clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to San Francisco is Tuesday where tickets can be as cheap as $648. On the other hand, the most expensive day to fly is Saturday, where prices are $772 on average.

What is the cheapest month to fly to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to San Francisco is February, where tickets cost $474 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Spain is $1,028 and $943 respectively. For return trips, the best month to travel is February with an average price of $460.

What is the cheapest time of day to fly to San Francisco?

The average price for all flights to San Francisco depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to San Francisco is generally at night, when flights cost $578 on average. The most expensive time of day to fly to San Francisco is generally in the evening, which is peak travel time and where the average cost of a ticket is $792.

What is a good deal for flights to San Francisco?

If you’re looking for cheap airfare to San Francisco, 25% of our users found tickets to San Francisco for the following prices or less: From Barcelona-El Prat Airport $432 one-way - $664 round-trip, from Madrid $671 one-way - $586 round-trip.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 68 days before departure.

Which airline offers the most flights to San Francisco?

Of the 10 airlines that fly to San Francisco, United Airlines offers the most flights, with around 1,966 per week, followed by Alaska Airlines with 715 flights per week.

How long is the flight to San Francisco?

The duration of your flight to San Francisco depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to San Francisco on KAYAK are from Barcelona, which takes 12h 05m, Madrid, which takes 12h 35m, Palma de Mallorca, which takes 15h 30m, and Málaga, which takes 16h 35m.

How many direct flights to San Francisco are there each day?

There are around 578 direct flights from within Spain to San Francisco every day. Most flights depart in the morning, with 6:00 am the most common departure time and 45% of flights departing in the morning.

How many direct flights to San Francisco are there each week?

Each week there are around 4,043 direct flights from within Spain to San Francisco. The most common day for departures is Sunday, with 15% of flights taking off on this day.

How many long-haul flights are there to San Francisco each week?

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to San Francisco. Instead, there are 14 long-haul flights (6-12 hour flight duration), with the most arriving from Barcelona-El Prat Airport.

How many cities have direct flights to San Francisco?

From Spain, there are direct flights to San Francisco from 2 cities. The city with the most direct flights is Barcelona-El Prat Airport, with 11 direct flights each week.

Good to know

Low season

January

High season

August

Cheapest flight

$252
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from Barcelona to San Francisco

FAQs - booking San Francisco flights

  • How far is San Francisco from central San Francisco?

    The distance between San Francisco and downtown San Francisco is 12 miles.

  • What is the name of San Francisco’s airport?

    There is only 1 airport in San Francisco, called San Francisco (SFO). It can also be referred to as San Francisco or San Francisco Intl.

  • How much is a flight to San Francisco?

    On average, a flight to San Francisco costs $712. The cheapest price found on KAYAK in the last 2 weeks cost $282 and departed from Barcelona-El Prat Airport.

  • How does KAYAK find such low prices on flights 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 to San Francisco.

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to San Francisco

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Francisco flight deals.

Prefer to fly non-stop to San Francisco?

Find which airlines fly direct to San Francisco, which days they fly and book direct flights.

Nonstop departures

Spain to San Francisco

Monday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Tuesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Wednesday

AIR PREMIA, ANA, Aer Lingus, +80 more

AIR PREMIA, ANA, +81 more

Thursday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Friday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Saturday

ANA, Aer Lingus, Aeromexico, +81 more

ANA, Aer Lingus, +82 more

Sunday

AIR PREMIA, ANA, Aer Lingus, +81 more

AIR PREMIA, ANA, +82 more

See more direct flights

Nonstop returns

San Francisco to Spain

Monday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Tuesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Wednesday

AIR PREMIA, ANA, Aer Lingus, +80 more

AIR PREMIA, ANA, +81 more

Thursday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Friday

AIR PREMIA, ANA, Aer Lingus, +79 more

AIR PREMIA, ANA, +80 more

Saturday

ANA, Aer Lingus, Aeromexico, +81 more

ANA, Aer Lingus, +82 more

Sunday

AIR PREMIA, ANA, Aer Lingus, +81 more

AIR PREMIA, ANA, +82 more

See more direct flights
See more direct flights

Top 5 airlines serving from Spain to San Francisco

 
See real verified KAYAK customer reviews for airlines flying to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Spain to San Francisco. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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.
7.4
United AirlinesOverall score based on 11226 reviews
7.1entertainment
6.7food
7.7boarding
7.2comfort
8.1crew
Airline reviews

So so. Terrible aircraft choice for that leg of the flight.

4.0 OkayANTHONY, Apr 2024HNL - SFO
Read more about United Airlines reviews

So so. Terrible aircraft choice for that leg of the flight.

Our seat tv didn’t work All the rest was perfect

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

Meals were adequate but could be better. Lots of movies, podcasts, tv shows. We really enjoyed using our personal headsets highly recommended. 15 hrs flight great to travel at night.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

the plane was old. the wifi didn’t work. the entertainment was boring and dated. the charging ports were impossible to find. i was mostly ignored by flight attendants that had no problem speaking to the man beside me. i got two drinks the entire time i was on the plane.

Quit making seats narrower and narrower. The guy beside me spilled over in to my seat.

The service was non existent . Crew did very little didn’t even answer call button . Premium economy in this long haul was the worst I have ever experienced . Never again flying with them .

The crews are great.. Easy boarding. Inflight entertainment ok. Food is a disappointment.

The real big issue with this flight was that it was 3 hours delayed. Other than that, no big praises or complaints.

Somehow I got “offloaded” even though I had my boarding pass and was in transit Food is horrible Staff were nice and cheerful No headphones were provided on 11 hours flight

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

The staff were very helpful with lots of refreshments on offer. The toilets were clean. The seats were comfortable and entertainment was good. No complaints, it was excellent.

amazing! they were so kind and allowed us to sit on empty seats so we could stretch our legs and sleep good. Food is amazing as well plus dessert in the middle of the flight!

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

American Airlines canceled the flight twice and was unable to facilitate a change of city for us after our travel plans became affected. We lost alot of money due to this and it seems like the airline was trying their best not to facilitate this. Mind you, I am a very loyal member.

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

Service and food are good. However, main cabin with the extra cost one pays could be better. I don't see any difference with the rest of the seats in the regular category. The seats are too close to the ones in front. For short flights it is Ok, but for long ones there should be more space.

As with every airline the seats are not built for tall people.

Fast check in, easy to navigate, crew were very good, the plane was delayed due to a previous flight and I found the cleanliness a little lacking but overall it was fine

I would not fly with BA again. Packed in like sardines, constant request to turn down air conditioning due to freezing cold for hours and the food was pretty to look at but tasteless!

My wife and I paid for seat selection to be together. My wife and I were on separate rows and the excuse they gave was they changed the plane. Also, I have celiac and asked for a gluten free meal in the ticket profile which they did not have.

Iberia personnel on the ground is so rude. I would think twice in the future before booking another Iberia flight

Seats, comfort level ugh. Crew was not attentive, only to coach

All corners have been cut and it’s a cheap experience that no longer is distinguished from most other cheap airlines

Pros: they tried to accommodate bc they forgot my gluten free meal Negatives: The flight was freeeeeezing Iberia didn’t communicate my gluten free meal

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

During the flight there was a medical emergency. We were diverted. Of course I'm thankful they cared for the health of that passenger, but they did a poor job of communicating with the rest of us passengers. In the end we arrived at our destination several hours late, with no direction of how to rebook missed connecting flights. It all worked out in the end. Those of us that needed accommodations were put up in a hotel by Lufthansa until we could make it to our final destination. But it was United Airlines Personnel who really helped us navigate the process.

Always a pleasure to deal with United's helpful and knowledgeable staff

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Not enough trash pickups throughout the flight. Everything else was great.

Overall good, the gluten free food is very hit/miss though and you must tell them you have an allergy days in advance.

Book cheap flights from Spain to San Francisco

Recent round-trip flight deals

 
These are the cheapest round-trip flights to San Francisco found on KAYAK in the last 72 hours.
9/10mar.
nonstopIberia
13h 10mBCN-SFO
9/22dom.
nonstopIberia
11h 50mSFO-BCN
$364
9/5jue.
nonstopIberia
13h 10mBCN-SFO
9/8dom.
nonstopIberia
11h 50mSFO-BCN
$378
5/23jue.
2 stopsAmerican Airlines
23h 44mVLC-SFO
5/30jue.
2 stopsAmerican Airlines
17h 57mSFO-VLC
$440
5/7mar.
1 stopAmerican Airlines
17h 29mBCN-SFO
5/20lun.
1 stopAmerican Airlines
21h 00mSFO-BCN
$442
8/30vie.
1 stopUnited Airlines
22h 37mBCN-SFO
9/8dom.
1 stopUnited Airlines
22h 30mSFO-BCN
$472
5/11sáb.
1 stopUnited Airlines
18h 48mBCN-SFO
10/9mié.
nonstopUnited Airlines
11h 30mSFO-BCN
$474
5/10vie.
1 stopLufthansa
20h 25mBIO-SFO
5/26dom.
1 stopLufthansa
17h 20mSFO-BIO
$479
10/8mar.
nonstopBritish Airways
12h 55mMAD-SFO
10/17jue.
1 stopBritish Airways
13h 42mSFO-MAD
$480
9/20vie.
1 stopBritish Airways
26h 15mAGP-SFO
10/12sáb.
1 stopBritish Airways
19h 20mSFO-AGP
$482
5/11sáb.
1 stopLufthansa
22h 25mBIO-SFO
5/23jue.
1 stopLufthansa
15h 35mSFO-BIO
$525

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to San Francisco found on KAYAK in the last 72 hours.
9/12jue.
nonstopVueling
13h 10mBCN-SFO
$252
6/10lun.
2 stops
48h 34mBCN-SFO
$268
5/9jue.
2 stops
33h 52mBCN-SFO
$279
5/14mar.
nonstopIberia
12h 30mBCN-SFO
$441
5/16jue.
nonstopIberia
12h 30mBCN-SFO
$462
8/2vie.
2 stopsBritish Airways
18h 59mAGP-SFO
$874
8/2vie.
2 stopsBritish Airways
28h 54mAGP-SFO
$923
8/16vie.
3 stopsUnited Airlines
21h 25mAGP-SFO
$1,320
8/4dom.
2 stopsUnited Airlines
24h 21mAGP-SFO
$1,333
9/25mié.
3 stopsAmerican Airlines
20h 17mAGP-SFO
$3,898

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Last minute flights to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to San Francisco that are departing in the next 10 days.
5/1mié.
multi-stopScandinavian Airlines
28h 20mBCN-SFO
5/8mié.
multi-stopScandinavian Airlines
15h 40mSFO-BCN
$480
5/1mié.
multi-stopAmerican Airlines
19h 36mBCN-SFO
5/8mié.
multi-stopAmerican Airlines
14h 33mSFO-BCN
$492
5/1mié.
multi-stopAmerican Airlines
17h 39mMAD-SFO
5/7mar.
multi-stopAmerican Airlines
22h 26mSFO-MAD
$547
5/1mié.
multi-stopUnited Airlines
22h 00mBCN-SFO
5/8mié.
multi-stopUnited Airlines
18h 46mSFO-BCN
$603
5/1mié.
multi-stopUnited Airlines
22h 49mBCN-SFO
5/7mar.
multi-stopUnited Airlines
27h 36mSFO-BCN
$664
4/30mar.
multi-stopDelta
19h 55mBIO-SFO
5/7mar.
multi-stopDelta
20h 35mSFO-BIO
$677
4/30mar.
multi-stopDelta
20h 20mMAD-SFO
5/8mié.
multi-stopDelta
20h 40mSFO-MAD
$788
4/27sáb.
multi-stopLufthansa
24h 45mMAD-SFO
5/3vie.
multi-stopLufthansa
16h 15mSFO-MAD
$975
5/1mié.
multi-stopSWISS
19h 05mBCN-SFO
5/8mié.
multi-stopSWISS
14h 35mSFO-BCN
$3,179
5/1mié.
multi-stopSWISS
15h 30mBCN-SFO
5/8mié.
multi-stopSWISS
18h 40mSFO-BCN
$3,196

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