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SFO - BIO

$264 Find cheap flights from San Francisco to Bilbao

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Bilbao departing on 8/6. 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
Thu 7/11
Thu 7/18

Search hundreds of travel sites at once for deals on flights to Bilbao

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Bilbao.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Bilbao.
In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

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Cheap flight deals from San Francisco to Bilbao (SFO-BIO)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Bilbao 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 and deals for you by selecting your travel dates.
Choose your dates
2:40 pm - 5:50 pmSFO-BIO
42h 10m2 stops
7:35 am - 2:59 pmBIO-SFO
40h 24m2 stops
$952United Airlines
Find Deal
Wed, Jun 26 - Tue, Jul 9
6:15 pm - 4:55 pmSFO-BIO
13h 40m1 stop
9:15 am - 4:30 pmBIO-SFO
16h 15m1 stop
$959Iberia
Find Deal
Thu, Aug 1 - Thu, Aug 15
9:05 pm - 11:25 pmSFO-BIO
17h 20m1 stop
11:35 am - 6:45 pmBIO-SFO
16h 10m1 stop
$990Lufthansa
Find Deal
Wed, Jul 3 - Thu, Dec 26
11:55 pm - 9:55 amSFO-BIO
25h 00m2 stops
6:50 am - 11:50 amBIO-SFO
14h 00m1 stop
$1,020Delta
Find Deal
Wed, Jul 3 - Thu, Dec 26
9:05 pm - 11:25 pmSFO-BIO
17h 20m1 stop
6:45 am - 12:35 pmBIO-SFO
14h 50m1 stop
$1,035Lufthansa
Find Deal
Wed, Jul 3 - Fri, Dec 20
7:46 pm - 10:25 amSFO-BIO
29h 39m3 stops
9:15 am - 8:45 amBIO-SFO
32h 30m2 stops
$1,053American Airlines
Find Deal
Sun, Jul 7 - Sat, Aug 17
12:59 am - 8:50 pmSFO-BIO
34h 51m2 stops
6:45 am - 10:02 pmBIO-SFO
24h 17m2 stops
$1,066American Airlines
Find Deal
Sat, Jul 6 - Fri, Jul 19
1:30 pm - 5:20 pmSFO-BIO
18h 50m2 stops
6:50 am - 11:45 amBIO-SFO
13h 55m1 stop
$1,073Delta
Find Deal
Tue, Jun 18 - Tue, Jun 25
1:55 pm - 10:45 pmSFO-BIO
23h 50m1 stop
7:10 am - 12:45 pmBIO-SFO
14h 35m1 stop
$1,076KLM
Find Deal
Thu, Jul 25 - Fri, Aug 9
2:39 pm - 4:30 pmSFO-BIO
16h 51m2 stops
12:10 pm - 11:09 pmBIO-SFO
19h 59m2 stops
$1,563KLM
Find Deal
Sat, Jun 29 - Mon, Dec 23

Flights from San Francisco to Bilbao - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to Bilbao 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 San Francisco to Bilbao?

The average price of all flights from San Francisco to Bilbao clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Bilbao on a Wednesday and more expensive on a Friday. On your return trip to San Francisco, you should consider flying back on a Wednesday, and avoid Fridays for better deals.

What is the cheapest month to fly from San Francisco to Bilbao?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Francisco to Bilbao, 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 San Francisco to Bilbao is February, where tickets cost $594 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,523 and $1,289 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Francisco to Bilbao, 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 on the flight from San Francisco to Bilbao, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 52 days before departure.

Which airlines provide the cheapest flights from San Francisco to Bilbao?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from San Francisco to Bilbao found on KAYAK was with Vueling for $264. United Airlines proposed a round-trip connection from $952 and Iberia from $959.

Good to know

Low season

January

High season

June

Cheapest flight

$264
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 65% increase in price.
Flight from San Francisco to Bilbao

When to book flights from San Francisco to Bilbao

Are your dates flexible? Find out the best times to travel from San Francisco to Bilbao 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 flights from San Francisco to Bilbao

  • What is the cheapest flight from San Francisco to Bilbao?

    In the last 3 days, the lowest price for a flight from San Francisco to Bilbao was $264 for a one-way ticket and $952 for a round-trip.

  • Do I need a passport to fly between San Francisco and Bilbao?

    Yes, you’ll need a passport to travel to Bilbao from San Francisco.

  • Which aircraft models fly most regularly from San Francisco to Bilbao?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Bilbao?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Francisco and Bilbao, with Star Alliance being the most commonly used for this route.

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

    The two airlines most popular with KAYAK users for flights from San Francisco to Bilbao are Delta and KLM. With an average price for the route of $1,285 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 $1,078 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from San Francisco to Bilbao?

    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 San Francisco to Bilbao.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from 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 from San Francisco to Bilbao?

    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 Bilbao with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and BIO 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 San Francisco to Bilbao?

    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 Bilbao from 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 5 airlines serving from San Francisco to Bilbao

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Bilbao. 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 San Francisco to Bilbao? 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 1470 reviews
7.6Comfort
7.2Entertainment
7.8Boarding
7.3Food
8.4Crew
Airline reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

8.0 ExcellentJacob Oluleke, Apr 2024LOS - AMS
Read more about KLM reviews

The food from Lagos to Amsterdam was was very poor compared to AMS-YYZ

The flight was again delayed for more then 2 hours with some lousy explanation regarding the reason of the delay. Although the flight was delayed for more than 2 hours, no refreshments were offered (according to EU regulations). Last 4 flights on KLM - always at least 2 hrs late. So be prepared that you cannot plan anything with KLM.

The flight was delayed for 2 hrs. Because they didn’t have a crew to fly. And it is not a first time for klm to do that. Last time they cancelled my filght and rebooked me 3 days later. Not reliable airline

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

Booked connecting flights with KlM. My serving flight was the furthest part of the airport. On arrival in Zurich. My two cases arrived but only one carry on belong to my son. His three suitcase didn't arrive. After enquiring we discovered they were still in Amsterdam. We landed at 11.12. We eventually left the airport just after one.

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

The worst airline. Cancelled flight 30 min before boarding and rebooked on flight after 3 days.

It was nice to be on a legacy airline, people try at least.

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

Why does it have to be painful to fly long distances?

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

On time take off…US cabins look tired and need of refresh!

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

My flight was cancelled after a 7 hour delay. I am awaiting a refund.

Disappointing. Had to pay 70 euros for one checked bag. Transatlantic flight was cramped, not very comfortable

Pretty fair for the price of the plane ticket. Food was poorly, but overall was a ok experience for a super long flight.

Good. Madrid to SFO was way better than ARN to Madrid. Mercifully, the seats to Madrid didn't recline. So although there was no leg room, your knees didn't get crushed

Overall was good except for the seat which, for an 8 hour intercontinental flight, was uncorfortable. For that kind of flight seats should have more space, even for economy seats.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Good food, prompt and timely flight, good on-board personnel

Thankful for 2-4-2 economy seating. Food was ok. Free beer & wine in economy was nice. Served hot dinner, mud- flight snack and pre-arrival ham sandwich. Seat with pillow & blanket. Reasonable movie options. Overall, a good experience. IBERIA APP is terrible terrible terrible.... needs to get upgraded to equivalent of TAP Airlines App. No option to bid or request an upgrade. Very disappointing.

My luggage did not get to my Miami destination/home. I am waiting for it 24 hours later.

Poor, we had 1 hour to grab our checked luggage, go through customs, recheck bags and run across terminals to make our United flight. Poorly planned connections.

Staff didn’t care in business class. Closed the door on my mom while she was on the jetbridge and flight attendant told me she would make it from the connecting flight. They lied. My luggage was damaged on arrival. No success in filing damage claim.

Overall, the flight was comfortable without any serious issues. Transit through Frankfurt airport was a little confusing, but not too difficult if you follow the signs

Staff disappeared after dinner service until breakfast, no help with beds, no help running to our gate to catch connection cause flight was late, our luggage didn’t make it, took over 24 hours to get luggage to hotel, no compensation!!

Second time I took this flight, and they lost my luggage both times. Waiting for my suitcase now, last time it took two days to get it back.

Checked in is easy and it was a smooth flight from LAX to Munich

It was a busy flight and all the crew were very helpful and gracious

I wish the flight attendant was a little bit kinder

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

Used to love Lufthansa, but Rowe are too close together in Economy and passengers are allowed to recline their seats so far back it is impossible for those behind them to even reach for carry-on essentials during flight - except for meal service when flight attendants ask for seat backs to be raised, we can’t sleep on planes so this flight was most uncomfortable ever! Rod Rose

Book cheap flights from San Francisco to Bilbao

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to Bilbao found on KAYAK in the last 72 hours.
8/6Tue
1 stopVueling
25h 55mSFO-BIO
$264
8/6Tue
2 stops
27h 50mSFO-BIO
$299
8/4Sun
1 stop
21h 30mSFO-BIO
$330
8/7Wed
2 stops
30h 35mSFO-BIO
$353
8/7Wed
3 stops
32h 34mSFO-BIO
$358
6/24Mon
1 stopUnited Airlines
24h 45mSFO-BIO
$670
7/8Mon
2 stopsUnited Airlines
28h 08mSFO-BIO
$710
6/28Fri
1 stopKLM
17h 40mSFO-BIO
$870
6/29Sat
2 stopsLufthansa
61h 25mSFO-BIO
$915
8/23Fri
2 stopsAmerican Airlines
30h 56mSFO-BIO
$5,451

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Last minute flights from San Francisco to Bilbao

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 from San Francisco to Bilbao that are departing in the next 10 days.
6/16Sun
multi-stopUnited Airlines
31h 40mSFO-BIO
9/9Mon
multi-stopUnited Airlines
21h 54mBIO-SFO
$1,240
6/16Sun
multi-stopUnited Airlines
31h 40mSFO-BIO
9/9Mon
multi-stopUnited Airlines
15h 55mBIO-SFO
$1,280
6/16Sun
multi-stopLufthansa
34h 03mSFO-BIO
6/30Sun
multi-stopLufthansa
18h 25mBIO-SFO
$1,546
6/16Sun
multi-stopLufthansa
38h 13mSFO-BIO
6/30Sun
multi-stopLufthansa
27h 05mBIO-SFO
$1,608
6/16Sun
multi-stop
21h 05mSFO-BIO
6/30Sun
multi-stop
28h 40mBIO-SFO
$1,970
6/16Sun
multi-stop
38h 45mSFO-BIO
6/30Sun
multi-stop
43h 56mBIO-SFO
$12,166

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San Francisco - Bilbao Flights

Departure:

San Francisco (SFO)United States

Destination:

Bilbao (BIO)Spain

Return flight deals:

Bilbao - San Francisco

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