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$349+ Cheap flights from Bilbao (BIO) to California

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — LAX
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from Bilbao to California

Keep the following information in mind while searching for Bilbao to California flight deals. Data was last updated julio 30, 2025.

Round-trip from

$433
(Gotogate)

One-way from

$349
(oojo)

Popular in

August

Cheapest in

January

Average price

$926
From Bilbao to California
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One-way flight from Bilbao to California
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Highest demand for flights based on searches. 15% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Bilbao to California

Cheapest flights from Bilbao to California
Explore the most affordable flight options available from Bilbao to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This Gotogate deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/286:40 pmBIO - SFO
1 stop28h 50mTAP AIR PORTUGAL
sáb. 11/84:35 pmSFO - BIO
1 stop16h 20mTAP AIR PORTUGAL
Deal found 7/30$433
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/2312:15 pmBIO - LAX
1 stop35h 20mTAP AIR PORTUGAL
jue. 11/134:45 pmLAX - BIO
1 stop16h 10mTAP AIR PORTUGAL
Deal found 7/29$465
This lol.travel deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/116:45 amBIO - SFO
1 stop18h 25mFinnair
mié. 9/246:20 pmSFO - BIO
1 stop19h 55mFinnair
Deal found 7/29$493
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/189:15 amBIO - SFO
2 stops20h 24mAmerican Airlines
lun. 9/2210:22 amSFO - BIO
2 stops17h 23mAmerican Airlines
Deal found 7/30$501
This Iberia deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/116:45 amBIO - SFO
1 stop18h 25mIberia
mié. 9/246:20 pmSFO - BIO
1 stop29h 10mIberia
Deal found 7/29$531
This Finnair deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/176:45 amBIO - SFO
2 stops23h 11mMultiple Airlines
lun. 11/2410:24 amSFO - BIO
2 stops27h 51mMultiple Airlines
Deal found 7/30$533
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/163:15 pmBIO - LAX
1 stop30h 15mMultiple Airlines
sáb. 11/2910:30 pmLAX - BIO
1 stop31h 05mMultiple Airlines
Deal found 7/28$546
This lol.travel deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/58:40 pmBIO - LAX
1 stop28h 40mScandinavian Airlines
jue. 9/117:30 pmLAX - BIO
1 stop15h 20mScandinavian Airlines
Deal found 7/29$574
This lol.travel deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1512:50 pmBIO - SFO
1 stop16h 20mUnited Airlines
sáb. 11/299:40 pmSFO - BIO
1 stop16h 25mUnited Airlines
Deal found 7/30$576
This Gotogate deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/176:45 amBIO - SFO
1 stop14h 55mLufthansa
vie. 10/3110:40 pmSFO - BIO
1 stop16h 25mLufthansa
Deal found 7/29$602
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/312:00 pmBIO - SFO
2 stops19h 51mDelta
sáb. 9/137:05 amSFO - BIO
2 stops18h 20mDelta
Deal found 7/29$621
This SWISS deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/29:00 pmBIO - SFO
1 stop28h 35mSWISS
lun. 9/157:40 pmSFO - BIO
1 stop15h 35mSWISS
Deal found 7/29$636

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bilbao to California that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 30, 2025.
Use the filters below to find and compare flights from Bilbao to California that are best for you.

Fly from

Bilbao

Fly to

California

Route

Depart

Return

Price

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

mar. 10/28

6:40 pm-3:30 pm

1 stop28h 50m

San Francisco

sáb. 11/8

4:35 pm-5:55 pm

1 stop16h 20m

$433

BilbaoLos Angeles

BIO - LAX

BIOLAX

Bilbao

jue. 10/23

12:15 pm-2:35 pm

1 stop35h 20m

Los Angeles

jue. 11/13

4:45 pm-5:55 pm

1 stop16h 10m

$465

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

jue. 9/11

6:45 am-4:10 pm

1 stop18h 25m

San Francisco

mié. 9/24

6:20 pm-11:15 pm

1 stop19h 55m

$493

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

jue. 9/18

9:15 am-8:39 pm

2 stops20h 24m

San Francisco

lun. 9/22

10:22 am-12:45 pm

2 stops17h 23m

$501

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

jue. 9/11

6:45 am-4:10 pm

1 stop18h 25m

San Francisco

mié. 9/24

6:20 pm-8:30 am

1 stop29h 10m

$531

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

lun. 11/17

6:45 am-8:56 pm

2 stops23h 11m

San Francisco

lun. 11/24

10:24 am-11:15 pm

2 stops27h 51m

$533

BilbaoLos Angeles

BIO - LAX

BIOLAX

Bilbao

dom. 11/16

3:15 pm-12:30 pm

1 stop30h 15m

Los Angeles

sáb. 11/29

10:30 pm-2:35 pm

1 stop31h 05m

$546

BilbaoLos Angeles

BIO - LAX

BIOLAX

Bilbao

vie. 9/5

8:40 pm-4:20 pm

1 stop28h 40m

Los Angeles

jue. 9/11

7:30 pm-7:50 pm

1 stop15h 20m

$574

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

sáb. 11/15

12:50 pm-8:10 pm

1 stop16h 20m

San Francisco

sáb. 11/29

9:40 pm-11:05 pm

1 stop16h 25m

$576

BilbaoSan Francisco

BIO - SFO

BIOSFO

Bilbao

vie. 10/17

6:45 am-12:40 pm

1 stop14h 55m

San Francisco

vie. 10/31

10:40 pm-11:05 pm

1 stop16h 25m

$602

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 56 results
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Best time to book a flight from Bilbao to California

Have a flexible travel schedule? Discover the best time to fly to California from Bilbao with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Bilbao to California?

Currently, January is the cheapest month in which you can book a flight from Bilbao to California (average of $246). Flying from Bilbao to California in March is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BIO to CA?

Find hourly flight availability from Bilbao to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

When flying from Bilbao to California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Bilbao to California?

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated julio 30, 2025.
See what other customers who have flown with Delta, KLM, and Finnair from Bilbao to California have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Bilbao to California. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Bilbao to California?

    If you book a flight to California from Bilbao, you will be flying from Bilbao, which is the city’s only airport. Bilbao (BIO) is located 3.0 mi from the center of Bilbao.

  • What are the cheapest airlines to fly from Bilbao to California one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $349. Users have also found prices from $444 and $448 on Aer Lingus and LEVEL, respectively.

  • What are the most popular routes from Bilbao to California?

    The most popular flight routes from Bilbao to California are Bilbao - Los Angeles, Bilbao - San Francisco and Bilbao - Ontario.

  • Can I find deals for flights from Bilbao to California that include hotel bookings?

    Yes. In addition to deals on Bilbao to California flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bilbao to California?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bilbao to California.

  • Can I find deals for business class flights from Bilbao to California?

    Yes. Cheapflights offers flight deals from Bilbao to California by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bilbao to California?

    Currently, January is the cheapest month in which you can book a flight from Bilbao to California (average of $246). Flying from Bilbao to California in March is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Bilbao to California

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Bilbao to California

Discover the top 3 airlines that operate flights from Bilbao to California. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$397Average$1,011FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$538Average$734FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$596Average$926FlexibilityNo cancel feeOn-time76%

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