$370 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 5/23. 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 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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Flight Deals

Cheap Flights from Bilbao to California

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles2 stops$666
San Francisco
San Francisco2 stops$490
San Diego
San Diego2 stops$779
San Jose
San Jose2 stops$631
Reno
Reno2 stops$916
Sacramento
Sacramento2 stops$902
Los Angeles
Los Angeles2 stops$666
San Francisco
San Francisco2 stops$490
San Diego
San Diego2 stops$779
San Jose
San Jose2 stops$631
Reno
Reno2 stops$916
Sacramento
Sacramento2 stops$902

Book Cheap Bilbao to California Plane Tickets

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Bilbao to California

Thu, Feb 19 - Wed, Mar 4
American Airlines Logo
9:15 am - 8:42 pm
BIO
-
SFO
20h 27m
2 stops
American Airlines Logo
6:15 am - 8:30 am
SFO
-
BIO
17h 15m
2 stops
$490American Airlines
Thu, Feb 19 - Wed, Mar 4
American Airlines Logo
9:15 am - 8:42 pm
BIO
-
SFO
20h 27m
2 stops
American Airlines Logo
6:15 am - 8:30 am
SFO
-
BIO
17h 15m
2 stops
$492American Airlines
Wed, Mar 11 - Tue, Mar 17
Iberia Logo
9:15 am - 10:32 pm
BIO
-
SFO
21h 17m
2 stops
Iberia Logo
10:36 am - 12:50 pm
SFO
-
BIO
18h 14m
2 stops
$522Iberia
Wed, Apr 8 - Mon, Apr 13
Iberia Logo
9:15 am - 10:04 pm
BIO
-
SFO
21h 49m
2 stops
Iberia Logo
10:06 am - 12:45 pm
SFO
-
BIO
17h 39m
2 stops
$557Iberia
Thu, Feb 19 - Wed, Mar 4
United Airlines Logo
6:45 am - 3:55 pm
BIO
-
SFO
18h 10m
1 stop
United Airlines Logo
1:30 pm - 6:05 pm
SFO
-
BIO
19h 35m
1 stop
$564United Airlines
Thu, Feb 19 - Wed, Mar 4
United Airlines Logo
6:45 am - 3:55 pm
BIO
-
SFO
18h 10m
1 stop
United Airlines Logo
9:40 pm - 9:55 pm
SFO
-
BIO
15h 15m
1 stop
$566United Airlines
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
1:50 pm - 5:35 pm
BIO
-
LAX
35h 45m
2 stops
Multiple Airlines Logo
8:10 pm - 8:20 am
LAX
-
BIO
28h 10m
3 stops
$666Multiple Airlines
Tue, Mar 17 - Tue, Mar 24
Multiple Airlines Logo
1:50 pm - 12:45 pm
BIO
-
LAX
30h 55m
2 stops
Multiple Airlines Logo
11:30 pm - 8:20 am
LAX
-
BIO
24h 50m
2 stops
$671Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Lufthansa Logo
6:40 pm - 3:15 pm
BIO
-
LAX
29h 35m
1 stop
Lufthansa Logo
5:30 pm - 5:55 pm
LAX
-
BIO
15h 25m
1 stop
$679Lufthansa
Thu, Feb 19 - Mon, Feb 23
Lufthansa Logo
11:35 am - 3:15 pm
BIO
-
LAX
36h 40m
1 stop
Lufthansa Logo
5:30 pm - 11:05 pm
LAX
-
BIO
20h 35m
1 stop
$685Lufthansa
Booking Insights

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 February, when tickets cost $627 (return) on average. On the other hand, the most expensive months are August and January, when the average cost of round-trip tickets is $1,086 and $979 respectively.

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 2 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$370
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 40% increase in price.
Flight from Bilbao to San Francisco

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.

Reviews of the top airline flying 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.
7.4
United AirlinesOverall score based on 9222 reviews
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
Airline reviews

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 ..

2.0 MediocreAnonymous, Feb 2026
YYZ - SFO
Read more United Airlines reviews

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.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

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

Information on your arrival and departure airports