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$377+ Cheap flights from Riverside, CA 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 3/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BIO
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Riverside to Bilbao

Cheapest flights from Riverside to Bilbao
Explore the most affordable flight options available from Riverside to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Mon 2/97:10 pm
LAX
-
BIO
1 stop16h 45m
SWISS
Wed 2/259:25 am
BIO
-
LAX
1 stop16h 10m
SWISS
Deal found 1/20$426
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Wed 3/45:30 pm
LAX
-
BIO
1 stop15h 35m
Lufthansa
Mon 3/97:25 am
BIO
-
LAX
1 stop16h 50m
Lufthansa
Deal found 1/20$429
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Wed 3/47:10 pm
LAX
-
BIO
1 stop17h 00m
SWISS
Wed 3/119:25 am
BIO
-
LAX
1 stop16h 10m
SWISS
Deal found 1/20$434
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:10 pm
LAX
-
BIO
1 stop17h 00m
SWISS
Wed 2/259:25 am
BIO
-
LAX
1 stop16h 10m
SWISS
Deal found 1/20$435
This Cheapflightsfares deal was found by Cheapflights users on 1/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:30 pm
LAX
-
BIO
1 stop15h 35m
Lufthansa
Tue 3/107:40 am
BIO
-
LAX
1 stop16h 35m
Lufthansa
Deal found 1/19$441
This Mytrip deal was found by Cheapflights users on 1/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:15 am
LAX
-
BIO
2 stops22h 55m
Multiple Airlines
Tue 3/107:40 am
BIO
-
LAX
2 stops21h 48m
Multiple Airlines
Deal found 1/19$442
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/912:30 pm
LAX
-
BIO
2 stops25h 45m
Iberia
Wed 2/259:15 am
BIO
-
LAX
2 stops19h 06m
Iberia
Deal found 1/20$449
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Mon 2/96:15 am
LAX
-
BIO
2 stops17h 15m
American Airlines
Wed 2/259:15 am
BIO
-
LAX
2 stops19h 06m
American Airlines
Deal found 1/21$450
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Wed 3/46:10 pm
LAX
-
BIO
1 stop17h 40m
Iberia
Mon 3/99:35 pm
BIO
-
LAX
2 stops20h 37m
Iberia
Deal found 1/20$451
This Finnair deal was found by Cheapflights users on 1/20. 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.
Tue 2/179:47 pm
LAX
-
BIO
2 stops25h 43m
Multiple Airlines
Tue 2/246:45 am
BIO
-
LAX
2 stops23h 55m
Multiple Airlines
Deal found 1/20$456

Find flight deals from Riverside to Bilbao

Keep the following information in mind while searching for Riverside to Bilbao flight deals. Data was last updated January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$426
(Kiwi.com)

One-way from

$377
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$638
Provider with most accurate pricing for Los Angeles-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Bilbao flights.
Search Deals
From Riverside to Bilbao
Search Deals
One-way flight from Riverside to Bilbao
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside 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 January 21, 2026.
Use the filters below to find and compare flights from Riverside to Bilbao that are best for you.

Fly from

Riverside

Fly to

Bilbao

Route

Depart

Return

Price

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Mon 2/9

7:10 pm-8:55 pm

1 stop16h 45m

Bilbao

Wed 2/25

9:25 am-4:35 pm

1 stop16h 10m

$432

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Wed 3/4

8:15 am-4:10 pm

2 stops22h 55m

Bilbao

Wed 3/11

7:25 am-4:15 pm

1 stop16h 50m

$442

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Tue 2/17

5:30 pm-9:55 pm

1 stop19h 25m

Bilbao

Tue 2/24

7:40 am-3:15 pm

1 stop16h 35m

$450

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Wed 3/4

6:10 pm-8:50 pm

1 stop17h 40m

Bilbao

Mon 3/9

9:35 pm-10:12 am

2 stops20h 37m

$451

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Tue 2/17

9:47 pm-8:30 am

2 stops25h 43m

Bilbao

Tue 2/24

6:45 am-9:40 pm

2 stops23h 55m

$456

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Sun 2/22

5:30 pm-9:55 pm

1 stop19h 25m

Bilbao

Sun 3/1

7:25 am-3:15 pm

1 stop16h 50m

$469

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Wed 2/11

3:00 pm-11:20 pm

1 stop23h 20m

Bilbao

Wed 2/25

11:35 am-10:59 pm

2 stops20h 24m

$470

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Mon 2/9

7:00 am-12:50 pm

2 stops20h 50m

Bilbao

Wed 2/25

11:35 am-3:15 pm

1 stop36h 40m

$472

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Fri 2/20

6:00 am-5:20 pm

2 stops26h 20m

Bilbao

Sun 3/1

11:55 am-11:45 am

1 stop32h 50m

$476

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Fri 2/20

6:35 pm-11:20 pm

2 stops19h 45m

Bilbao

Sat 2/28

7:25 am-3:15 pm

1 stop16h 50m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 17 results
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Best time to book a flight from Riverside to Bilbao

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

How far ahead should I book a flight from Riverside to Bilbao?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Bilbao. Price data was last updated on January 16, 2026.

The best time to book flights from Riverside to Bilbao is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Riverside to Bilbao (average of $505). Flying from Riverside to Bilbao in June is currently the most expensive (average of $1,005). 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.

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 January 21, 2026.
See what other customers who have flown with Delta, United Airlines, and Iberia from Riverside to Bilbao have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

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
7.9
Good
8,088 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

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
9,191 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

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.
Iberia
7.0
Good
3,094 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

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.
Lufthansa
6.8
Okay
7,738 reviews
Delta
7.9
Good
8,088 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Comfort

7.9

Crew

8.5

Food

7.2

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 Riverside 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 Riverside?

    Located just 3.0 mi from the city center, Bilbao is the airport most travelers will use when flying to Bilbao from Riverside. Booking flights from Riverside to Bilbao (BIO) should be relatively easy as there are 0 daily inbound flights from Riverside from 8 different airlines.

  • How long is the flight from Riverside to Bilbao?

    A quick flight from Riverside to Bilbao can take about 16h 45m. SWISS provides one of the quickest options available for as low as $432. Riverside and Bilbao are separated by a distance of 5726 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Riverside to Bilbao are TAP AIR PORTUGAL ($301), Lufthansa ($358), and Iberia ($473).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Riverside to Bilbao (average of $505). Flying from Riverside to Bilbao in June is currently the most expensive (average of $1,005). 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 Riverside to Bilbao

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Top 8 airlines flying from Riverside to Bilbao

Discover the top 8 airlines that operate flights from Riverside 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$476Average$885FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$525Average$1,975FlexibilityNo cancel feeOn-time77%
IberiaCheapest$607Average$1,008FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$635Average$945FlexibilityNo cancel feeOn-time76%
KLMCheapest$643Average$864FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$654Average$1,162FlexibilityNo cancel feeOn-time69%
LEVELCheapest$669Average$999FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$672Average$1,056FlexibilityNo cancel feeOn-time71%

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