HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bilbao

$604+ Cheap flights from Houston to Bilbao (BIO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — BIO
Sep 2 — Sep 91
Tue 9/2
Tue 9/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to Bilbao with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Houston to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Bilbao (BIO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 28, 2025.

Round-trip from

$604
(American Airlines)
From Houston to Bilbao
Search Deals

Find flight deals from Houston to Bilbao

Cheapest flights from Houston to Bilbao
Explore the most affordable flight options available from Houston to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 28, 2025.

This American Airlines deal was found by Cheapflights users on 8/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2112:08 pmIAH - BIO
2 stops17h 37mAmerican Airlines
Wed 11/59:35 pmBIO - IAH
2 stops17h 59mAmerican Airlines
Deal found 8/28$604
This Air France deal was found by Cheapflights users on 8/27. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:50 pmIAH - BIO
1 stop17h 50mAir France
Wed 11/57:25 amBIO - IAH
1 stop13h 30mAir France
Deal found 8/27$605
This Expedia deal was found by Cheapflights users on 8/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/152:26 pmIAH - BIO
2 stops35h 04mIberia
Mon 12/155:35 pmBIO - IAH
2 stops21h 39mIberia
Deal found 8/28$609
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/213:35 pmIAH - BIO
1 stop19h 45mUnited Airlines
Wed 11/512:50 pmBIO - IAH
1 stop32h 45mUnited Airlines
Deal found 8/28$614
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Sat 11/157:50 pmIAH - BIO
2 stops33h 10mUnited Airlines
Thu 1/1512:50 pmBIO - IAH
2 stops29h 10mUnited Airlines
Deal found 8/27$635
This Cheapflightsfares deal was found by Cheapflights users on 8/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:50 pmIAH - BIO
2 stops20h 35mLufthansa
Tue 10/76:45 amBIO - IAH
1 stop13h 50mLufthansa
Deal found 8/28$640
This Lufthansa deal was found by Cheapflights users on 8/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/154:30 pmIAH - BIO
1 stop23h 20mLufthansa
Mon 12/155:35 pmBIO - IAH
1 stop28h 00mLufthansa
Deal found 8/28$664
This Delta deal was found by Cheapflights users on 8/26. 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.
Wed 9/106:00 amHOU - BIO
2 stops21h 25mDelta
Wed 9/1711:05 amBIO - HOU
2 stops18h 32mDelta
Deal found 8/26$886
This American Airlines deal was found by Cheapflights users on 8/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:44 pmHOU - BIO
2 stops15h 11mAmerican Airlines
Tue 10/79:15 amBIO - HOU
2 stops19h 59mAmerican Airlines
Deal found 8/28$954
This Delta deal was found by Cheapflights users on 8/26. 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.
Fri 10/106:00 amHOU - BIO
2 stops22h 15mDelta
Fri 10/177:10 amBIO - HOU
2 stops22h 50mDelta
Deal found 8/26$1,182
This Delta deal was found by Cheapflights users on 8/26. 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 9/86:00 amHOU - BIO
2 stops21h 25mDelta
Fri 9/1211:05 amBIO - HOU
2 stops18h 32mDelta
Deal found 8/26$1,940
This Iberia deal was found by Cheapflights users on 8/26. 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 9/82:33 pmHOU - BIO
2 stops19h 22mIberia
Thu 9/111:30 pmBIO - HOU
2 stops17h 18mIberia
Deal found 8/26$4,613

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston 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 August 28, 2025.
Use the filters below to find and compare flights from Houston to Bilbao that are best for you.

Fly from

Houston

Fly to

Bilbao

Route

Depart

Return

Price

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 10/21

12:08 pm-12:45 pm

2 stops17h 37m

Bilbao

Wed 11/5

9:35 pm-8:34 am

2 stops17h 59m

$604

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 10/21

10:55 am-8:30 am

2 stops14h 35m

Bilbao

Wed 11/5

9:35 pm-5:25 pm

2 stops26h 50m

$604

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 10/21

3:50 pm-4:40 pm

1 stop17h 50m

Bilbao

Wed 11/5

7:25 am-1:55 pm

1 stop13h 30m

$605

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sat 11/15

2:26 pm-8:30 am

2 stops35h 04m

Bilbao

Mon 12/15

5:35 pm-8:14 am

2 stops21h 39m

$609

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 10/21

3:35 pm-6:20 pm

1 stop19h 45m

Bilbao

Wed 11/5

12:50 pm-2:35 pm

1 stop32h 45m

$614

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sat 11/15

8:23 pm-11:05 pm

2 stops43h 42m

Bilbao

Mon 12/15

5:35 pm-2:35 pm

1 stop28h 00m

$635

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sat 11/15

7:50 pm-12:00 pm

2 stops33h 10m

Bilbao

Thu 1/15

12:50 pm-11:00 am

2 stops29h 10m

$635

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Mon 9/29

3:35 pm-10:25 pm

1 stop23h 50m

Bilbao

Tue 10/7

6:45 am-1:35 pm

1 stop13h 50m

$635

HoustonBilbao

HOU - BIO

HOUBIO

Houston Hobby

Wed 9/10

6:00 am-10:25 am

2 stops21h 25m

Bilbao

Wed 9/17

11:05 am-10:37 pm

2 stops18h 32m

$886

HoustonBilbao

HOU - BIO

HOUBIO

Houston Hobby

Mon 9/29

6:44 pm-4:55 pm

2 stops15h 11m

Bilbao

Tue 10/7

9:15 am-10:14 pm

2 stops19h 59m

$954

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/27

Showing 1-10 of 16 results
1
2

Best time to book a flight from Houston to Bilbao

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

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

Find hourly flight availability from Houston 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 August 28, 2025.

When flying from Houston to Bilbao, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 29% versus a flight in the morning.

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 August 28, 2025.
Peruse reviews from past customers who have flown with Delta and United Airlines from Houston to Bilbao to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,944 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Houston 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 Houston?

    Bilbao (BIO) is the airport you will fly into if you book a flight from Houston to Bilbao. You should not have trouble finding flights to Bilbao from Houston; the airport handles an average of 0 inbound flights from Houston per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Bilbao airport from Houston. It is only a 3.0 mi journey from Bilbao (BIO) to Bilbao’s city center.

  • How long is the flight from Houston to Bilbao?

    Airlines like American Airlines, Iberia, and Air France fly from Houston to Bilbao in about 14h 35m. The time it takes to get you to your destination can typically vary by up to 3h 15m. There are 4942 mi between Houston and Bilbao. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Houston to Bilbao round-trip?

    Our cheapest airline available from Houston to Bilbao is United Airlines. Our recent data shows that you can find tickets from as low as $802 on this airline. An additional option worth looking into is Delta, starting at $868.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Houston to Bilbao (average of $541). Flying from Houston to Bilbao in June is currently the most expensive (average of $1,137). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Houston to Bilbao

Discover the top 2 airlines that operate flights from Houston 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 August 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$802Average$1,277FlexibilityNo cancel feeOn-time69%
DeltaCheapest$868Average$955FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.