$318 Find Cheap Flights from Spain 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 to San Francisco departing on 4/22. 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, 0 bags

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 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Spain to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Spain 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 Spain to San Francisco

Thu, Apr 16 - Thu, Apr 30
Iberia Logo
2:05 pm - 5:55 pm
BCN
-
SFO
12h 50mnonstop
Iberia Logo
7:40 pm - 4:25 pm
SFO
-
BCN
11h 45mnonstop
$477Iberia
Thu, Apr 16 - Thu, Apr 30
Iberia Logo
2:05 pm - 5:55 pm
BCN
-
SFO
12h 50mnonstop
Iberia Logo
7:40 pm - 4:25 pm
SFO
-
BCN
11h 45mnonstop
$483Iberia
Thu, Apr 16 - Thu, Apr 30
Iberia Logo
2:05 pm - 5:55 pm
BCN
-
SFO
12h 50mnonstop
Iberia Logo
7:40 pm - 4:25 pm
SFO
-
BCN
11h 45mnonstop
$484Iberia
Sun, May 24 - Tue, Jun 2
Iberia Logo
2:05 pm - 5:55 pm
BCN
-
SFO
12h 50mnonstop
Iberia Logo
7:45 pm - 4:30 pm
SFO
-
BCN
11h 45mnonstop
$485Iberia
Wed, Jun 10 - Wed, Jul 22
TAP AIR PORTUGAL Logo
10:25 pm - 4:35 pm
MAD
-
SFO
27h 10m
1 stop
TAP AIR PORTUGAL Logo
4:35 pm - 5:00 pm
SFO
-
MAD
15h 25m
1 stop
$513TAP AIR PORTUGAL
Thu, Apr 16 - Thu, Apr 30
British Airways Logo
12:35 pm - 4:10 pm
MAD
-
SFO
12h 35mnonstop
British Airways Logo
4:35 pm - 3:50 pm
SFO
-
MAD
14h 15m
1 stop
$536British Airways
Tue, Apr 14 - Wed, May 6
SWISS Logo
7:30 pm - 4:15 pm
MAD
-
SFO
29h 45m
1 stop
SWISS Logo
7:35 pm - 9:20 am
SFO
-
MAD
28h 45m
1 stop
$542SWISS
Thu, Apr 2 - Tue, Apr 14
Lufthansa Logo
11:50 am - 7:00 pm
MAD
-
SFO
16h 10m
1 stop
Lufthansa Logo
8:10 am - 8:05 am
SFO
-
MAD
14h 55m
1 stop
$544Lufthansa
Thu, Apr 2 - Tue, Apr 14
Lufthansa Logo
11:50 am - 7:00 pm
MAD
-
SFO
16h 10m
1 stop
Lufthansa Logo
9:05 pm - 10:30 pm
SFO
-
MAD
16h 25m
1 stop
$546Lufthansa
Thu, Apr 16 - Thu, Apr 30
SWISS Logo
9:40 am - 4:15 pm
PMI
-
SFO
15h 35m
1 stop
SWISS Logo
7:35 pm - 7:15 pm
SFO
-
PMI
14h 40m
1 stop
$567SWISS
Booking Insights

KAYAK's insights & trends for flights to San Francisco

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 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 $548 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 $846 and $834 respectively. For return trips, the best month to travel is February with an average price of $548.

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 Madrid $423 one-way - $669 round-trip, from Barcelona-El Prat Airport $427 one-way - $535 round-trip.

How far in advance should I book a flight 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 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 87 days before departure.

Good to know

Low seasonJanuary
Cheapest flight$318
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 16% increase in price.
Flight from Málaga to San Francisco

FAQs - booking San Francisco flights

  • How far is San Francisco Airport from central San Francisco?

    The distance between San Francisco Airport 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 Airport (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 $707. The cheapest price found on KAYAK in the last 2 weeks cost $281 and departed from Barcelona-El Prat Airport.

  • What is the cheapest day to fly to San Francisco?

    Based on KAYAK data, the cheapest day to fly to San Francisco is Tuesday where tickets can be as cheap as $670. On the other hand, the most expensive day to fly is Thursday, where prices are $923 on average.

  • 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.

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

    The cheapest time of day to fly to San Francisco is generally in the morning, when flights cost $925 on average. The most expensive time of day to fly to San Francisco is generally in the morning, which is peak travel time and where the average cost of a ticket is $925.

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

    Each week there are around 3,607 direct flights from within Spain to San Francisco. The most common day for departures is Monday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to San Francisco

  • Looking for cheap airfare to San Francisco? 25% of our users found round-trip tickets to San Francisco for the following prices or less: From Madrid $546, from Barcelona-El Prat $1,022
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Francisco flight deals.

Reviews of the 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 9377 reviews
6.6Food
7.3Comfort
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

Flight attendants were friendly & good service, food sucks, seats uncomfortable, not many Asian movies or shows flying from Hong Kong

6.0 GoodAnonymous, Feb 2026
HKG - SFO
Read more United Airlines reviews

Flight attendants were friendly & good service, food sucks, seats uncomfortable, not many Asian movies or shows flying from Hong Kong

Flight attendants had a little attitude. Food tastes no good.

Overall we had a good experience during our flight from San Francisco to Houston.

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

It was a good experience overall. We were however delayed by over 3 hours due to a security issue with one of the passengers inadvertently leaving a power bank in a luggage she was using as carrying on but then had to be moved int check in due to spacing issues. The airline staff had requested that she checked her bags in, but should have reminded her about removing all hazardous material like her power bank. When she eventually remembered as we were on the plane, we had to turn back and go through security all over again. Hence delaying our takeoff. The incident could have been prevented if staff reminded these passengers to remove their power banks.

Delayed departure Madrid to Lisboa and my luggage no arrived

The cabin crew were curt, not with me, but observed with other passengers. They were unduly rude and it was unprovoked and when they realized they were wrong, they made no attempt to apologize for their own confusion.

I was disappointed of the crew, not friendly and attentive. Delay one way for fuel leakage and the plane is so hot. Not that great all around but I’m glad I experienced it so now know better.

Flew Business class and did not like anything, flight attendants were rude and not helpful. Food was of poor quality and I did not eat meals.

I like the price. I dislike the website where I wanted to ask questions about the unusual high prices of the luggage fees. I called the toll free number from the United States and I cannot get through. You should test your own toll free website for info and you will know what I am writing about.

Very long line at the gate, moved slowly. I had expected that boarding a flagship A330neo would be with a jetway directly at the gate, and not a long bus ride to the airplane.

The layover was only one hour and a huge line for passport control. If I didn’t cut the line and argue was every single official, I would’ve spent the night in this one. Obviously.TAP AIR people. do not take into account.this problem with their flight scheduling, which is extremely frustrating. Poor food choices, on the pasta was offered, they ran out of chicken right away. All the sodas and water poured in a tiny 70 mL cups, which is not enough to keep hydrated on the long flight. I had to ask for 34 cups at a time. Flight attendant seemed to be tired and overworked.

I am not very tall, and had a difficult time getting my carry-on placed in the overhead bin while passengers were behind me waiting to get to their seats. After struggling with the luggage, I turned it around, and left it, knowing it was not properly placed, but believing there was adequate room for it in the bin. When the flight attendant came through the cabin, she asked whose bag it was, and scolded me for not positioning it correctly. She turned it around and moved on. I thought that her approach was totally unprofessional, calling out a passenger in that manner.

Plane was delayed, reading the gates on their screens was horrible. They posted it a half an hour before the plane boarded. By the time I got there with my premier boarding they have filled the plane because it was over booked. Gate closed at 12:03 I was there at 11:54 plane took over around 12:20. I was told they would put me on the next flight. I had to go to TAP information desk. They didn’t give me a voucher they just said they would put me on the next flight. At the desk I was told I had to punches a ticket. The woman said buy it online because it’s cheaper. It in fact was not cheaper. But I had gotten out of the long line that formed so I paid 200$ for a new ticket. At a later flight, not the next flight. I had checked my bag and was told it would be on my new flight. I was then bumped to an earlier flight and was told my bag would also be on my flight. After landing in Madrid loosing a day in my hotel i landed without my bag. They didn’t load it on any flight that day. It arrived in madrid the next day. Essentially ruining the first two days of my vacation. I’m now seeking compensation.

Very nice staff, terrible food, not very comfortable premium economy.

Boarding, crew, food and baggage handling excellent (no bags lost, yay!). However for an 8 hour flight, there were limited entertainment options. And really would have liked to have a pillow!

The crew was super friendly and helpful. The food was quite good. An overall positive experience.

A more organized boarding experience and better food would have made the experience better.

why can't planes be boarded from back to front?? everything was great otherwise

We flew into Barcelona and the plane was so cramped and very uncomfortable and dirty. But we flew out of Madrid and that plane was much better. Would fly Iberia again.

For what we are willing to pay for international air travel, our experience was very good. We had no problem checking in, we had very little wait time at the AA counter in Madrid, and the staff in Madrid were very helpful. The flight crew was helpful and courteous, the plane was on the newer side, and our assigned seats were together without us needing to purchase them. The flight took off on time and arrived early. Overall, it was a pleasant experience or as much as could be expected in economy for almost 10 hours.

Boarding was easy, the flight left on time and even landed 20 minutes early. The food was plentiful and really good! The crew was kind & helpful. Overall it was an exceptional experience!

The flight was safe, confortable and convenient. Thank you. I hope to come back soon!

temperature was too cold there should be free blankets, seat are very uncomfortable, entertainment is limited.

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Not great - seats were very narrow and food was terrible.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

Our Jackson, Mississippi to Dallas Fort Worth flight was delayed on 1/19/26.. This was changed to Jackson to Charlotte in the last minute because of this delay. This started some kind of disconnect between American Airlines and British Airways bookings. We could not go past the passport control in London Heathrow. I had to go to the counter and waited for more than 30 minutes to get a new boarding pass. Problems did not end there. Somehow our entire return flight was canceled by someone. I had to make several phone calls over several days to fix the problem – this was not easy from India. Looks like there was some kind of disconnect between two airlines or some agent did not do it right. I’m anxious to know what went wrong.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

Check-in experience, for business call please provide a premium experience

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Calistoga
Rohnert Park
Marina
Emeryville
Capitola
Pacifica
Millbrae
Campbell
Newark
Mill Valley
Novato
Windsor
Belmont
Union City
Richmond
West Sacramento
American Canyon
Corte Madera
Los Altos
Jenner

Everything you need to know for your flight to San Francisco

Information on the airport you'll fly into in San Francisco