$249 Find Cheap Flights from Bilbao to California

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 California departing on 6/8. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to California

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Bilbao to California, 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 California, as well as popular online travel agencies
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Flights Deals

Best California Flight Deals from Bilbao

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Los Angeles
Los Angeles1 stop$534
San Francisco
San Francisco2 stops$496
San Diego
San Diego2 stops$773
San Jose
San Jose2 stops$736
Sacramento
Sacramento2 stops$951
Los Angeles
Los Angeles1 stop$534
San Francisco
San Francisco2 stops$496
San Diego
San Diego2 stops$773
San Jose
San Jose2 stops$736
Sacramento
Sacramento2 stops$951

Cheap Flight Deals from Bilbao to California (BIO-USCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Bilbao to California 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.

Recent round-trip flight deals from Bilbao to California

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Bilbao to California.
Discover the best prices for you by selecting your travel dates on KAYAK.
Iberia Logo
1:30 pm - 12:16 amBIO-SFO
19h 46m2 stops
Iberia Logo
2:28 pm - 4:55 pmSFO-BIO
17h 27m2 stops
$496Iberia
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Mon, Sep 8 - Tue, Sep 30
Iberia Logo
1:30 pm - 12:22 amBIO-SFO
19h 52m2 stops
Iberia Logo
8:00 pm - 9:55 amSFO-BIO
28h 55m1 stop
$519Iberia
Find Deal
Mon, May 19 - Tue, Jun 3
 Logo
9:30 am - 5:30 pmBIO-LAX
17h 00m1 stop
 Logo
7:45 pm - 8:45 amLAX-BIO
28h 00m1 stop
Mon, May 19 - Sun, May 25
 Logo
9:30 am - 5:30 pmBIO-LAX
17h 00m1 stop
 Logo
7:45 pm - 8:45 amLAX-BIO
28h 00m1 stop
Mon, May 19 - Sun, May 25
Lufthansa Logo
7:15 pm - 4:00 pmBIO-SFO
29h 45m1 stop
Lufthansa Logo
9:35 pm - 9:50 pmSFO-BIO
16h 15m1 stop
$720Lufthansa
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Sat, Oct 18 - Sat, Nov 1
United Airlines Logo
6:45 am - 11:43 pmBIO-LAX
25h 58m2 stops
United Airlines Logo
5:30 pm - 9:50 pmLAX-BIO
19h 20m1 stop
$739United Airlines
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Thu, Oct 23 - Thu, Nov 13
United Airlines Logo
6:45 am - 11:43 pmBIO-LAX
25h 58m2 stops
United Airlines Logo
2:30 pm - 9:50 pmLAX-BIO
22h 20m2 stops
$740United Airlines
Find Deal
Thu, Oct 23 - Thu, Nov 13
Lufthansa Logo
7:15 pm - 1:40 pmBIO-SFO
27h 25m2 stops
Lufthansa Logo
9:35 pm - 9:50 pmSFO-BIO
16h 15m1 stop
$746Lufthansa
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Sat, Oct 18 - Sat, Nov 1
KLM Logo
6:50 am - 11:45 amBIO-SFO
13h 55m1 stop
KLM Logo
8:25 pm - 10:00 pmSFO-BIO
16h 35m1 stop
$830KLM
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Fri, Jun 13 - Fri, Jun 20
KLM Logo
5:15 pm - 6:35 pmBIO-LAS
34h 20m1 stop
KLM Logo
8:25 pm - 4:30 pmLAS-BIO
35h 05m1 stop
$967KLM
Find Deal
Sun, Jun 1 - Sat, Jun 14
Useful Info

KAYAK's insights & trends for Bilbao to California flights

Get data-powered insights and trends into flights from Bilbao to California to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Bilbao to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Bilbao to California, 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 California is January, when tickets cost $638 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $1,233 and $957 respectively.

What’s the cheapest day of the week to fly from Bilbao to California?

The average price of all round-trip flights from Bilbao to California clicked on KAYAK for each day over the last 12 months.

When flying from Bilbao to California, you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Bilbao, you’ll find the best rates on Tuesdays and the most expensive ones on Wednesdays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Bilbao to California, 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 Bilbao to California, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.


Good to know

Low seasonNovember
High seasonJuly
Cheapest flight$249
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 42% increase in price.
Flight from Bilbao to Los Angeles

FAQs - booking California flights

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

    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 California.

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

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

    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 from Bilbao to California 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 from Bilbao to California?

    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 from Bilbao to California 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 California?

    The cheapest time of day to fly to California is generally in the morning, when round-trip flights cost $904 on average. The most expensive time of day to fly to California is generally in the morning, which is peak travel time and where the average cost of a ticket is $904.

Top 3 airlines serving from Bilbao to California

 
See real verified KAYAK customer reviews for airlines flying from Bilbao to California. 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 California? 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 1334 reviews
7.2Food
7.7Comfort
8.4Crew
7.1Entertainment
7.8Boarding
Airline reviews

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.

8.0 ExcellentShereen, Apr 2025AMS - YUL
Read more KLM reviews

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 were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

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.

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

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

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

Wonderful and fast TSA checkpoint. The line was fast and our gate was close by

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 ;)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

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

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

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.

I enjoyed my flight back with Lufthansa because the food was good, and the flight attendants were nice and helped you when you asked a question. The flight attendants always came around and asked if you needed anything which I liked a lot.

Entertainment system is old. Food can be tastier Need to provide toothbrush and toothpaste at least when asked.

The flight was cancelled due to tech problem with the plane

Everything you need to know for your flight from Bilbao to California

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