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$650+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — BIO
Dec 9 — Dec 161
Tue 12/9
Tue 12/16
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 November 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$650
(Turkish Airlines)

Popular in

June

Cheapest in

November

Average price

$755
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 ($502 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($80 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 9, 2025.

This Mytrip deal was found by Cheapflights users on 11/6. 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.
Fri 11/281:35 pmIAH - BIO
2 stops22h 00mMultiple Airlines
Sat 12/135:55 pmBIO - IAH
3 stops37h 04mMultiple Airlines
Deal found 11/6$726
This FlightHub deal was found by Cheapflights users on 11/6. 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 11/122:55 pmIAH - BIO
1 stop18h 15mTurkish Airlines
Sat 12/1312:00 pmBIO - IAH
1 stop32h 10mTurkish Airlines
Deal found 11/6$778
This Mytrip deal was found by Cheapflights users on 11/6. 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 11/236:10 amIAH - BIO
3 stops26h 50mMultiple Airlines
Sat 12/135:55 pmBIO - IAH
3 stops37h 04mMultiple Airlines
Deal found 11/6$818
This Mytrip deal was found by Cheapflights users on 11/6. 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 11/121:35 pmIAH - BIO
3 stops35h 05mMultiple Airlines
Sat 12/135:55 pmBIO - IAH
3 stops37h 04mMultiple Airlines
Deal found 11/6$838
This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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.
Fri 11/285:10 pmIAH - BIO
2 stops23h 10mLufthansa
Sat 12/136:45 amBIO - IAH
1 stop14h 50mLufthansa
Deal found 11/6$865
This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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.
Sun 11/235:10 pmIAH - BIO
2 stops22h 40mLufthansa
Sat 12/136:45 amBIO - IAH
1 stop14h 50mLufthansa
Deal found 11/6$875

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 November 9, 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

Tue 3/24

10:05 pm-4:10 pm

1 stop36h 05m

Bilbao

Wed 4/15

6:20 pm-7:15 pm

1 stop31h 55m

$650

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 3/17

9:30 am-10:50 am

2 stops19h 20m

Bilbao

Fri 3/27

6:45 am-3:10 pm

1 stop14h 25m

$674

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Wed 5/6

2:30 pm-5:20 pm

1 stop19h 50m

Bilbao

Mon 5/18

11:55 am-7:15 pm

1 stop38h 20m

$690

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Fri 11/28

1:35 pm-6:35 pm

2 stops22h 00m

Bilbao

Sat 12/13

5:55 pm-11:59 pm

3 stops37h 04m

$726

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Fri 2/20

9:05 pm-4:10 pm

1 stop36h 05m

Bilbao

Tue 2/24

12:00 pm-7:10 pm

1 stop38h 10m

$734

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sat 1/10

2:55 pm-11:00 am

1 stop37h 05m

Bilbao

Thu 1/15

5:10 pm-7:10 pm

1 stop33h 00m

$735

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Thu 12/18

4:05 pm-11:30 am

1 stop12h 25m

$992

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Thu 12/18

3:55 pm-6:05 pm

2 stops19h 10m

$1,077

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Houston George Bush Intcntl Airport-Bilbao flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 9, 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 November 9, 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
8,002 reviews

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,002 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,012 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.2

Comfort

7.9

Overall

7.9

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 Turkish Airlines and United Airlines fly from Houston George Bush Intcntl Airport to Bilbao in about 19h 20m. The time it takes to get you to your destination can typically vary by up to 16h 45m. 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 November 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$372Average$774FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$690Average$1,021FlexibilityNo cancel feeOn-time69%

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