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Bilbao

$270+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BIO
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Find cheap flights from Riverside to Bilbao with Cheapflights

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Cheapflights Tip: The best prices from Riverside to Bilbao are usually found in February or March, booked 90 days in advance, depart on a Tuesday or Sunday and return on a Thursday

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 December 4, 2025.

This Finnair deal was found by Cheapflights users on 12/1. 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.
Mon 12/1510:40 amLAX - BIO
2 stops27h 35mMultiple Airlines
Mon 12/296:45 amBIO - LAX
2 stops21h 32mMultiple Airlines
Deal found 12/1$1,185
This Booking.com deal was found by Cheapflights users on 12/1. 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.
Fri 12/265:30 pmLAX - BIO
1 stop20h 50mLufthansa
Tue 12/305:40 pmBIO - LAX
2 stops30h 55mLufthansa
Deal found 12/1$1,265
This Iberia deal was found by Cheapflights users on 12/2. 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.
Mon 12/1510:15 amLAX - BIO
2 stops17h 35mIberia
Mon 12/297:50 pmBIO - LAX
1 stop31h 15mIberia
Deal found 12/2$1,270
This KLM deal was found by Cheapflights users on 12/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:20 pmLAX - BIO
1 stop32h 10mKLM
Mon 12/297:25 amBIO - LAX
1 stop14h 45mKLM
Deal found 12/2$1,271
This Delta deal was found by Cheapflights users on 12/1. 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.
Mon 12/157:20 amLAX - BIO
2 stops19h 00mDelta
Mon 12/297:25 amBIO - LAX
1 stop14h 45mDelta
Deal found 12/1$1,330
This United Airlines deal was found by Cheapflights users on 12/1. 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.
Fri 12/267:13 pmLAX - BIO
2 stops19h 07mUnited Airlines
Tue 12/3011:35 amBIO - LAX
2 stops38h 00mUnited Airlines
Deal found 12/1$1,395
This KLM deal was found by Cheapflights users on 12/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:05 pmLAX - BIO
1 stop16h 20mKLM
Tue 12/305:20 pmBIO - LAX
1 stop27h 25mKLM
Deal found 12/1$1,449
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
Fri 12/265:30 pmLAX - BIO
1 stop20h 50mMultiple Airlines
Wed 12/317:45 amBIO - LAX
2 stops19h 45mMultiple Airlines
Deal found 12/1$1,452
This KLM deal was found by Cheapflights users on 12/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:05 pmLAX - BIO
1 stop16h 20mKLM
Wed 12/317:25 amBIO - LAX
1 stop14h 45mKLM
Deal found 12/1$1,455

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$426
(Kiwi.com)

One-way from

$270
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,439
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. 14% potential increase in price ($156 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 4, 2025.
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

Wed 2/11

6:10 pm-11:15 pm

1 stop20h 05m

Bilbao

Wed 2/25

6:45 am-4:35 pm

1 stop18h 50m

$441

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Mon 1/19

3:00 pm-4:40 pm

1 stop16h 40m

Bilbao

Mon 2/2

6:45 am-1:05 pm

1 stop15h 20m

$441

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Wed 1/21

5:30 pm-6:05 pm

1 stop15h 35m

Bilbao

Sun 1/25

6:45 am-1:05 pm

1 stop15h 20m

$462

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Mon 1/19

10:40 am-11:15 pm

2 stops27h 35m

Bilbao

Fri 1/30

6:45 am-8:21 pm

2 stops22h 36m

$464

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Mon 1/19

3:00 pm-4:40 pm

1 stop16h 40m

Bilbao

Fri 1/30

11:35 am-10:59 pm

2 stops20h 24m

$467

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Sun 2/1

6:00 am-8:30 am

2 stops17h 30m

Bilbao

Mon 2/9

9:35 pm-8:46 am

2 stops20h 11m

$471

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Sun 2/15

5:45 am-11:30 am

2 stops20h 45m

Bilbao

Tue 2/24

7:25 am-6:35 pm

2 stops20h 10m

$471

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Sun 1/25

11:59 pm-8:20 am

3 stops47h 21m

$299

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Sun 1/11

7:55 pm-9:20 pm

1 stop16h 25m

$301

Los AngelesBilbao

LAX - BIO

LAXBIO

Los Angeles

Sun 2/15

7:55 pm-2:35 pm

1 stop33h 40m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 15 results
1
2

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 November 28, 2025.

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 $525). 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.

What is the cheapest time of day to fly from R1V to BIO?

Find hourly flight availability from Riverside 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 December 4, 2025.

When flying from Riverside to Bilbao, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 19% versus a flight in the afternoon.

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

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 December 4, 2025.
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
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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
8,011 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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
9,064 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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
3,040 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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
7,613 reviews
Delta
7.9
Good
8,011 reviews

Crew

8.5

Food

7.3

Boarding

8.1

Overall

7.9

Entertainment

7.9

Comfort

7.9

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 15h 35m. Finnair provides one of the quickest options available for as low as $462. 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 ($467), 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 $525). 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$542Average$1,040FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$607Average$1,061FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$635Average$1,046FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$654Average$1,162FlexibilityNo cancel feeOn-time69%
LEVELCheapest$669Average$978FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$676Average$1,975FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$677Average$1,137FlexibilityNo cancel feeOn-time71%
KLMCheapest$681Average$925FlexibilityNo cancel feeOn-time75%

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