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Bilbao

$249+ Cheap flights from California to Bilbao (BIO)

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BIO
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from California to Bilbao

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

Round-trip from

$493
(lol.travel)

One-way from

$249
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,105
From California to Bilbao
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One-way flight from California to Bilbao
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Highest demand for flights based on searches. 13% potential increase in price ($156 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 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 California to Bilbao

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

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.
Mon 9/2210:45 pmSFO - BIO
1 stop27h 00mUnited Airlines
Tue 10/72:10 pmBIO - SFO
1 stop14h 45mUnited Airlines
Deal found 7/29$493
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:05 pmSFO - BIO
1 stop17h 20mMultiple Airlines
Tue 10/76:45 amBIO - SFO
2 stops23h 08mMultiple Airlines
Deal found 7/29$522
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:45 pmSFO - BIO
2 stops31h 20mAir Canada
Tue 10/76:45 amBIO - SFO
2 stops23h 55mAir Canada
Deal found 7/29$535
This CrystalTravel 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:05 pmSFO - BIO
1 stop17h 20mLufthansa
Tue 10/286:40 amBIO - SFO
1 stop15h 00mLufthansa
Deal found 7/29$538
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/91:00 pmLAX - BIO
1 stop15h 50mMultiple Airlines
Sun 10/197:35 amBIO - LAX
1 stop15h 35mMultiple Airlines
Deal found 7/29$544
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.
Sun 9/218:10 pmSFO - BIO
1 stop27h 05mVueling
Sat 10/47:00 amBIO - SFO
1 stop20h 10mVueling
Deal found 7/30$552
This LEVEL 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:50 pmLAX - BIO
1 stop27h 30mLEVEL
Wed 11/197:45 pmBIO - LAX
1 stop32h 25mLEVEL
Deal found 7/28$577
This Iberia deal was found by Cheapflights users on 7/27. 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.
Sun 10/197:50 pmLAX - BIO
1 stop18h 10mIberia
Thu 10/308:55 amBIO - LAX
1 stop18h 10mIberia
Deal found 7/27$586
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:30 pmLAX - BIO
1 stop20h 55mLufthansa
Wed 10/86:45 amBIO - LAX
1 stop15h 15mLufthansa
Deal found 7/28$588
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.
Wed 9/176:20 pmSFO - BIO
1 stop19h 55mIberia
Tue 9/239:15 amBIO - SFO
1 stop15h 55mIberia
Deal found 7/29$593
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/198:18 amLAX - BIO
2 stops24h 32mUnited Airlines
Fri 10/316:40 amBIO - LAX
1 stop15h 25mUnited Airlines
Deal found 7/27$596
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:30 amLAX - BIO
2 stops25h 50mAir Canada
Wed 10/86:45 amBIO - LAX
2 stops18h 23mAir Canada
Deal found 7/29$602

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Bilbao 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 July 30, 2025.
Use the filters below to find and compare flights from California to Bilbao that are best for you.

Fly from

California

Fly to

Bilbao

Route

Depart

Return

Price

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 9/22

10:45 pm-10:45 am

1 stop27h 00m

Bilbao

Tue 10/7

2:10 pm-7:55 pm

1 stop14h 45m

$493

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 9/22

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Tue 10/7

6:45 am-8:53 pm

2 stops23h 08m

$522

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Mon 9/22

11:45 pm-4:05 pm

2 stops31h 20m

Bilbao

Tue 10/7

6:45 am-9:40 pm

2 stops23h 55m

$535

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Tue 10/21

9:05 pm-11:25 pm

1 stop17h 20m

Bilbao

Tue 10/28

6:40 am-1:40 pm

1 stop15h 00m

$538

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Thu 10/9

1:00 pm-1:50 pm

1 stop15h 50m

Bilbao

Sun 10/19

7:35 am-2:10 pm

1 stop15h 35m

$544

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Sun 9/21

8:10 pm-8:15 am

1 stop27h 05m

Bilbao

Sat 10/4

7:00 am-6:10 pm

1 stop20h 10m

$552

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Sun 10/19

7:50 pm-11:00 pm

1 stop18h 10m

Bilbao

Thu 10/30

8:55 am-7:05 pm

1 stop18h 10m

$586

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Wed 10/1

5:30 pm-11:25 pm

1 stop20h 55m

Bilbao

Wed 10/8

6:45 am-4:55 pm

1 stop19h 10m

$588

San FranciscoBilbao

SFO - BIO

SFOBIO

San Francisco

Wed 9/17

6:20 pm-11:15 pm

1 stop19h 55m

Bilbao

Wed 9/24

9:15 am-4:45 pm

1 stop16h 30m

$593

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Sun 10/19

8:18 am-5:50 pm

2 stops24h 32m

Bilbao

Fri 10/31

6:40 am-2:05 pm

1 stop15h 25m

$596

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 60 results
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Best time to book a flight from California to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from California 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 California to Bilbao

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

Currently, January is the cheapest month in which you can book a flight from California to Bilbao (average of $541). Flying from California to Bilbao in June is currently the most expensive (average of $1,135). 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 CA to BIO?

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from California to Bilbao as you normally would.

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. 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 Bilbao. Reviews last updated July 30, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Finnair from California to Bilbao to help guide your decision. Users have also rated airlines 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

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from California to Bilbao. 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 into for flights to Bilbao from California?

    For a flight from California to Bilbao, you will be flying into Bilbao. Bilbao (BIO) is just 3.0 mi from the center of the city.

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

    One-way options have recently been found by users for as low as $283 on LEVEL. Other airlines that offer cheap prices include Iberia from $348 and Aer Lingus from $424 one-way.

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

    Most travelers choose San Francisco - Bilbao, Los Angeles - Bilbao or San Jose - Bilbao when deciding on the best route from California to Bilbao.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from California to Bilbao 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 California to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from California to Bilbao (average of $541). Flying from California to Bilbao in June is currently the most expensive (average of $1,135). 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 California to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from California to Bilbao

Discover the top 8 airlines that operate flights from California to Bilbao. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$427Average$883FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$557Average$1,134FlexibilityNo cancel feeOn-time76%
DeltaCheapest$563Average$1,124FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$599Average$1,072FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$599Average$746FlexibilityNo cancel feeOn-time77%
IberiaCheapest$607Average$1,023FlexibilityNo cancel feeOn-time77%
KLMCheapest$612Average$928FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$677Average$1,137FlexibilityNo cancel feeOn-time71%

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