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BIO - SFO

$295 Find cheap flights from Bilbao 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 Bilbao to San Francisco departing on 10/8. 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
Sat 6/29
Sat 7/6

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 in flight searches from Bilbao to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bilbao to San Francisco, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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

 
These are the cheapest deals for flights from Bilbao to San Francisco currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Bilbao to San Francisco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Bilbao to San Francisco.

Recent one-way flight deals from Bilbao to San Francisco

Only flying one-way? Below are some of the best one-way flight deals from Bilbao to San Francisco found on KAYAK recently.

Recent last minute flight deals from Bilbao to San Francisco

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Bilbao to San Francisco.

Recent direct flight deals from Bilbao to San Francisco

The latest deals for direct flights from Bilbao to San Francisco so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Bilbao to San Francisco

Find recent round-trip train or bus tickets from Bilbao to San Francisco.

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:45 am - 3:43 pmBIO-SFO
17h 58m2 stops
11:59 pm - 12:50 pmSFO-BIO
28h 51m2 stops
$432United Airlines
Find Deal
Thu, Oct 3 - Sun, Oct 27
6:45 am - 3:43 pmBIO-SFO
17h 58m2 stops
2:35 pm - 9:50 pmSFO-BIO
23h 15m1 stop
$442United Airlines
Find Deal
Thu, Oct 3 - Sun, Oct 27
6:50 am - 11:45 amBIO-SFO
13h 55m1 stop
2:50 pm - 10:45 pmSFO-BIO
23h 55m1 stop
$556KLM
Find Deal
Thu, Oct 3 - Sun, Oct 27
6:50 am - 11:45 amBIO-SFO
13h 55m1 stop
8:10 pm - 9:45 amSFO-BIO
28h 35m1 stop
Thu, Jun 13 - Thu, Jul 25
1:40 pm - 12:31 amBIO-SFO
19h 51m2 stops
6:15 pm - 8:50 pmSFO-BIO
17h 35m1 stop
$618Iberia
Find Deal
Thu, Jun 13 - Thu, Jul 25
6:45 am - 7:36 pmBIO-SFO
21h 51m2 stops
2:20 pm - 11:15 pmSFO-BIO
23h 55m2 stops
Wed, Jul 24 - Wed, Aug 28
1:40 pm - 12:31 amBIO-SFO
19h 51m2 stops
12:50 pm - 4:55 pmSFO-BIO
19h 05m2 stops
$698Iberia
Find Deal
Thu, Jun 13 - Thu, Jul 25
6:45 am - 7:55 pmBIO-SFO
22h 10m1 stop
10:50 pm - 11:25 pmSFO-BIO
15h 35m1 stop
$741Lufthansa
Find Deal
Thu, Jun 20 - Mon, Jul 1
7:10 am - 3:49 pmBIO-SFO
17h 39m2 stops
1:50 pm - 10:45 pmSFO-BIO
23h 55m1 stop
$980KLM
Find Deal
Wed, Jul 24 - Wed, Aug 28
11:35 am - 7:00 pmBIO-SFO
16h 25m1 stop
9:05 pm - 11:25 pmSFO-BIO
17h 20m1 stop
$1,215Lufthansa
Find Deal
Fri, Jul 26 - Mon, Aug 19
7:00 am - 9:38 pmBIO-SFO
23h 38m2 stops
Tue, Oct 8
11:00 pm - 6:10 pmBIO-SFO
28h 10m1 stop
$373Vueling
Find Deal
Mon, Oct 7
7:40 pm - 2:05 pmBIO-SFO
27h 25m2 stops
Mon, Oct 7
12:10 pm - 2:35 pmBIO-SFO
35h 25m1 stop
$500TAP AIR PORTUGAL
Find Deal
Wed, Oct 9
7:40 am - 6:10 pmBIO-SFO
19h 30m1 stop
$538Iberia
Find Deal
Tue, Oct 8
12:00 pm - 11:37 pmBIO-SFO
20h 37m2 stops
$561Delta
Find Deal
Wed, Oct 9
6:50 am - 11:45 amBIO-SFO
13h 55m1 stop
$563KLM
Find Deal
Sun, Oct 6
6:50 am - 4:47 pmBIO-SFO
18h 57m2 stops
$565Delta
Find Deal
Tue, Oct 8
7:10 am - 3:48 pmBIO-SFO
17h 38m2 stops
$762KLM
Find Deal
Sun, Jul 21
6:45 pm - 2:35 pmBIO-SFO
28h 50m1 stop
$1,086TAP AIR PORTUGAL
Find Deal
Sat, Jun 22

Flights from Bilbao to San Francisco - Travel Insights & Trends

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Bilbao 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 Bilbao to San Francisco is February, where tickets cost $405 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $848 and $839 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Bilbao 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 on the flight from Bilbao to San Francisco, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 86 days before departure.

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

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 Bilbao to San Francisco found on KAYAK was with Vueling for $373. United Airlines proposed a round-trip connection from $432 and KLM from $556.

Good to know

Low season

January

High season

August

Cheapest flight

$295
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 28% increase in price.
Flight from Bilbao to San Francisco

When to book flights from Bilbao to San Francisco

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

  • What flights from Bilbao to San Francisco are the most eco-friendly?

    On flights to San Francisco from Bilbao, each person emits about 5,271 lbs of CO2. You can find greener flights with KAYAK’s “Less CO2” sort, such as Delta’s flights through Amsterdam and Minneapolis, on which you could save about 44%, or 2,285 lbs of CO2. For flights with only one layover, you could choose Air France through Paris, which would still save about 36%, or 1,884 lbs of CO2.

  • Will I be able to collect frequent flyer points or miles from my flight to San Francisco from Bilbao?

    You can use the “Alliance” filter to only see options that should help you accrue miles for your frequent flyer program. For example, if you belong to United’s MileagePlus program, you can set the “Alliance” filter to “Star Alliance” and only see United flights and those with alliance partners like Lufthansa and Turkish Airlines.

  • How long will I have to wait between connections on my flight from Bilbao to San Francisco?

    You may have connections as you travel to San Francisco, but you do not need to wait too long. Under the “Duration” filter of your KAYAK search, you can set the “Layover” setting to find flights such as Lufthansa – with a stop in Munich for under 3 hours, enough to stretch your legs and maybe do a little duty-free shopping before your flight to San Francisco.

  • Will there be in-flight entertainment on my trip to San Francisco from Bilbao?

    If you want to know what onboard entertainment will help you pass the time from Bilbao to San Francisco, you can expand the flight information on your KAYAK results to see, for example, that TAP AIR may only have limited Wi-Fi on the first leg to Lisbon, but then you’ll get a seat back console for on-demand content on the longer flight to San Francisco.

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

    In the last 3 days, the lowest price for a flight from Bilbao to San Francisco was $295 for a one-way ticket and $432 for a round-trip.

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

    Yes

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Bilbao to San Francisco are Delta and Lufthansa. With an average price for the route of $530 and an overall rating of 8.0, Delta is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $695 and an overall rating of 6.9.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Bilbao 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 Bilbao 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 Bilbao with another airline. Booking your flights between Bilbao 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 Bilbao 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 Bilbao up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Bilbao to San Francisco

  • Most flights to San Francisco (SFO) from Bilbao (BIO) have layovers. Iberia, for example, typically stops in Madrid and then Washington, D.C. or Los Angeles. If you prefer one stop, Lufthansa usually stops in Frankfurt or Munich, while Delta often stops in Amsterdam or Paris.
  • If you are flying to San Francisco from Bilbao with TAP Air Discount Economy, you can bring a carry-on that is no bigger than 22 × 16 × 8 inches and weighs no more than 22 lbs. You are also allowed a personal item, such as a laptop bag or purse, which cannot be bigger than 16 × 12 × 5 inches or weigh over 4.4 lbs.
  • Want to get comfortable in a lounge while you wait for your flight to San Francisco? At Bilbao Airport (BIO), you can pay for access to the VIP Lounge, located on the mezzanine level of the boarding area. You can relax and get a bite to eat or something to drink in comfort.
  • If you are flying with an infant to San Francisco from Bilbao, Lufthansa allows certain strollers and prams on board, free of charge as an added carry-on item, and can provide a bassinet upon request. You need to inform the airline at least 52 hours before your flight, and there may be a fee for the bassinet.
  • For public transportation from San Francisco Airport (SFO) to downtown, there is a BART train station in the International Terminal that you can take to various locations in the city. In addition, there are SamTrans public bus stops outside the baggage claim areas of Terminals 2 and 3 and the International Terminal.
See more tips

Top airlines flying from Bilbao to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Bilbao 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 Bilbao 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.
8.0
DeltaOverall score based on 10457 reviews
8.0Entertainment
8.6Crew
7.4Food
7.9Comfort
8.2Boarding
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

I was sitting at comfort +. One of the Asian male crew was so loud when he delivered service. When he asked questions or what food you need, he was shouting. He must be a prison guard before going Delta.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Will try to not fly with them again. Delays because of weather but got redirected to an airport where I could not make connection.

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.

Crew was super rude in business class. Not friendly or helpful. Luggage was damaged and was told to file with United and that was unsuccessful.

The connection at Frankfurt was chaotic and nearly missed the flight to Atlanta. They made was wait for busses to transfer and it took ages

There was a screaming child just behind our seats. This prevented us from getting any sleep during the night!!

my flight was at 3:45 after that they delayed to 4:40 I have transit from Chicago to Frankfurt and Frankfurt to vina airport from vina to Erbil buy the Time I come to Frankfort my other flight left me I have to stay at airport all day with my 5 kids ask for help no one help me I spent at airport almost $450 just for food was horrible flight ever I call and ask for hotel from united customer service they been telling me we can’t provide any hotel I need some refund or fixed my flight when I return to America need some one respond my email

My experience would have been greatly improved by arriving on time to connect to my Porto flight. The staff that dealt with the aftermath of the late arrival evidently booked my group into a hotel in Frankfurt. This reduced my time in Porto Portugal a day and half. I do want to commend Jorge Klein for his hard work. He spent a great deal.of time trying to rebook the flight and he eventually did rebook for the next day and did provide accommodations for me overnight. This was a big issue for me and the group I traveled. The rest of the trip was good.

Not your fault…..didn’t get my drink until just before landing….bumpy flight.

Boarding was a zoo. London ground crew was useless. Poor communication regarding where to line up. We were group 2, and everyone was jammed in together. Ground crew didn’t seem to care.

We liked the direct flight from Frankfurt to Orlando, however, it was a little confusing as I thought I was traveling with Lufthansa from Izmir- Frankfurt-Orlando. We were not able to check in online twenty-four hours before the flight from Izmir. One lady in our group wanted to check two suitcases in Izmir, but was not allowed to do so. She was allowed to take the extra bag into the cablin. Others in our group were able to check two bags. In Frankfurt several in our group were given stand-by boarding tickets, which worried them. Everyone eventually was allowed to board, but it caused them to worry. I didn't have any of those problem.

Book cheap flights from Bilbao to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Bilbao to San Francisco found on KAYAK in the last 72 hours.
10/8Tue
2 stops
23h 38mBIO-SFO
$295
10/7Mon
1 stopVueling
28h 10mBIO-SFO
$373
10/7Mon
2 stops
27h 25mBIO-SFO
$382
10/9Wed
1 stopTAP AIR PORTUGAL
35h 25mBIO-SFO
$500
10/8Tue
1 stopIberia
19h 30mBIO-SFO
$538
10/9Wed
2 stopsDelta
20h 37mBIO-SFO
$561
10/6Sun
1 stopKLM
13h 55mBIO-SFO
$563
10/8Tue
2 stopsDelta
18h 57mBIO-SFO
$565
7/21Sun
2 stopsKLM
17h 38mBIO-SFO
$762
6/22Sat
1 stopTAP AIR PORTUGAL
28h 50mBIO-SFO
$1,086

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Bilbao - San Francisco Flights

Departure:

Bilbao (BIO)Spain

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Bilbao

Cabin classes: