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$507+ Cheap flights from George Bush Intcntl (IAH) 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — BIO
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Cheap flight deals from George Bush Intcntl to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) 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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$507
(Mytrip)

Popular in

June

Cheapest in

November

Average price

$810
Provider with most accurate pricing for Houston George Bush Intcntl-Bilbao flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Bilbao flights.
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From Houston George Bush Intcntl to Bilbao
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Highest demand for flights based on searches. 31% potential increase in price ($500 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($78 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from George Bush Intcntl to Bilbao

Cheapest flights from George Bush Intcntl to Bilbao
Explore the most affordable flight options available from George Bush Intcntl to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2025.

This Mytrip deal was found by Cheapflights users on 10/22. 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.
Thu 11/2711:50 amIAH - BIO
2 stops21h 50mMultiple Airlines
Thu 12/46:45 amBIO - IAH
1 stop14h 50mMultiple Airlines
Deal found 10/22$507
This lol.travel deal was found by Cheapflights users on 10/22. 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.
Thu 11/274:30 pmIAH - BIO
1 stop17h 10mLufthansa
Thu 12/46:45 amBIO - IAH
1 stop14h 50mLufthansa
Deal found 10/22$510
This lol.travel deal was found by Cheapflights users on 10/22. 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.
Thu 11/2711:50 amIAH - BIO
2 stops21h 50mAir Canada
Thu 12/412:50 pmBIO - IAH
2 stops27h 21mAir Canada
Deal found 10/22$511
This Air France deal was found by Cheapflights users on 10/21. 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 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 50mMultiple Airlines
Wed 11/56:50 amBIO - IAH
1 stop13h 40mMultiple Airlines
Deal found 10/21$619
This KLM deal was found by Cheapflights users on 10/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/211:29 pmIAH - BIO
2 stops14h 46mKLM
Wed 11/511:55 amBIO - IAH
2 stops17h 16mKLM
Deal found 10/21$640
This Mytrip deal was found by Cheapflights users on 10/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:43 pmIAH - BIO
3 stops22h 57mMultiple Airlines
Tue 1/69:55 pmBIO - IAH
3 stops31h 08mMultiple Airlines
Deal found 10/21$1,413
This United Airlines deal was found by Cheapflights users on 10/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:25 amIAH - BIO
2 stops20h 25mUnited Airlines
Tue 1/611:35 amBIO - IAH
2 stops62h 20mUnited Airlines
Deal found 10/21$1,434
This Brussels Airlines deal was found by Cheapflights users on 10/22. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:10 pmIAH - BIO
3 stops65h 40mBrussels Airlines
Thu 12/45:00 pmBIO - IAH
3 stops33h 10mBrussels Airlines
Deal found 10/22$1,553

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl 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 October 23, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Bilbao that are best for you.

Fly from

George Bush Intcntl

Fly to

Bilbao

Route

Depart

Return

Price

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Thu 11/27

4:30 pm-4:40 pm

1 stop17h 10m

Bilbao

Thu 12/4

6:45 am-2:35 pm

1 stop14h 50m

$510

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Thu 11/27

11:50 am-4:40 pm

2 stops21h 50m

Bilbao

Thu 12/4

12:50 pm-9:11 am

2 stops27h 21m

$511

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Fri 2/20

4:50 pm-11:20 pm

1 stop23h 30m

Bilbao

Tue 2/24

6:45 am-6:15 pm

1 stop18h 30m

$519

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Fri 2/20

7:10 am-12:00 pm

2 stops21h 50m

Bilbao

Tue 2/24

6:45 am-6:45 pm

2 stops19h 00m

$545

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Fri 2/20

3:30 pm-11:20 am

1 stop12h 50m

Bilbao

Mon 3/2

11:55 am-1:30 pm

1 stop32h 35m

$550

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Wed 12/17

5:33 am-10:20 pm

3 stops33h 47m

$539

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sat 11/15

2:38 pm-11:20 pm

2 stops25h 42m

$549

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Wed 12/17

4:50 pm-11:05 pm

1 stop23h 15m

$808

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Thu 12/18

7:20 am-4:40 pm

2 stops26h 20m

$897

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Thu 12/18

12:40 pm-11:30 am

2 stops15h 50m

$972

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 11 results
1
2

Compare providers for flights from George Bush Intcntl to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from George Bush Intcntl to Bilbao in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Houston George Bush Intcntl Airport-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Bilbao flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Houston George Bush Intcntl Airport-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from George Bush Intcntl to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from George Bush Intcntl 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 George Bush Intcntl Airport to Bilbao

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

Find hourly flight availability from George Bush Intcntl 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 October 23, 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Bilbao in the evening. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

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 October 23, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Houston George Bush Intcntl Airport to Bilbao. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,982 reviews
Delta
7.9
Good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,995 reviews
Delta
7.9
Good
7,982 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl 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 George Bush Intcntl?

    For a flight from Houston George Bush Intcntl to Bilbao, you will be flying into Bilbao. Bilbao (BIO) is just 3.0 mi from the center of the city. Bilbao is the only Bilbao airport and it handles 0 inbound flights from Houston George Bush Intcntl per day. 2 airlines have flights to Bilbao from Houston George Bush Intcntl on a regular basis.

  • How long is the flight from Houston George Bush Intcntl Airport to Bilbao?

    Airlines like Lufthansa, Air Canada, and United Airlines fly from Houston George Bush Intcntl Airport to Bilbao in about 17h 10m. The time it takes to get you to your destination can typically vary by up to 6h 20m. Airlines will cover a distance of 4942 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Bilbao round-trip?

    Our cheapest airline available from Houston George Bush Intcntl Airport to Bilbao is Delta. Our recent data shows that you can find tickets from as low as $372 on this airline. An additional option worth looking into is United Airlines, starting at $690. Users have found that Delta is 65% cheaper than the other options available to this destination.

  • Can I find deals for flights from George Bush Intcntl to Bilbao that include hotel bookings?

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

  • How can I find direct flights from George Bush Intcntl to Bilbao?

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

  • Can I find deals for business class flights from George Bush Intcntl to Bilbao?

    Yes. Cheapflights offers flight deals from George Bush Intcntl 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.

See more FAQs

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Alternative routes for George Bush Intcntl to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Bilbao flights
George Bush Intcntl to San Sebastian flights

Top 2 airlines flying from George Bush Intcntl to Bilbao

Discover the top 2 airlines that operate flights from George Bush Intcntl 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$372Average$774FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$690Average$1,021FlexibilityNo cancel feeOn-time69%

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