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$366+ Cheap flights from George Bush Intcntl (IAH) 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — BIO
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
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 January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$560
(Cheapflightsfares)

One-way from

$366
(Kiwi.com)
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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One-way flight from Houston George Bush Intcntl to Bilbao
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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 January 14, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/12. 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.
Tue 3/246:45 pm
IAH
-
BIO
2 stops21h 10m
Lufthansa
Wed 4/156:50 am
BIO
-
IAH
2 stops23h 36m
Lufthansa
Deal found 1/12$560
This Air France deal was found by Cheapflights users on 1/13. 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 3/245:05 pm
IAH
-
BIO
1 stop12h 25m
Multiple Airlines
Wed 4/156:45 am
BIO
-
IAH
1 stop13h 30m
Multiple Airlines
Deal found 1/13$569
This KLM deal was found by Cheapflights users on 1/12. 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 3/245:05 pm
IAH
-
BIO
1 stop18h 15m
KLM
Wed 4/155:15 pm
BIO
-
IAH
1 stop27h 00m
KLM
Deal found 1/12$570
This Delta deal was found by Cheapflights users on 1/13. 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.
Tue 3/243:18 pm
IAH
-
BIO
2 stops20h 02m
Delta
Wed 4/156:45 am
BIO
-
IAH
1 stop13h 30m
Delta
Deal found 1/13$574
This United Airlines deal was found by Cheapflights users on 1/12. 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.
Wed 3/186:35 pm
IAH
-
BIO
2 stops21h 20m
United Airlines
Tue 3/246:45 am
BIO
-
IAH
1 stop14h 25m
United Airlines
Deal found 1/12$576
This Ovago deal was found by Cheapflights users on 1/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/219:55 pm
IAH
-
BIO
2 stops36h 45m
Lufthansa
Wed 4/16:50 am
BIO
-
IAH
2 stops17h 35m
Lufthansa
Deal found 1/13$602
This KLM deal was found by Cheapflights users on 1/13. 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.
Sat 3/215:05 pm
IAH
-
BIO
1 stop23h 20m
KLM
Wed 4/15:15 pm
BIO
-
IAH
1 stop27h 00m
KLM
Deal found 1/13$621
This United Airlines deal was found by Cheapflights users on 1/11. 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.
Wed 2/254:50 pm
IAH
-
BIO
1 stop22h 05m
United Airlines
Sun 3/16:45 am
BIO
-
IAH
1 stop18h 30m
United Airlines
Deal found 1/11$622

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 January 14, 2026.
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

6:45 pm-9:55 pm

2 stops21h 10m

Bilbao

Wed 4/15

6:50 am-11:26 pm

2 stops23h 36m

$560

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Wed 3/18

5:05 pm-11:30 am

1 stop12h 25m

Bilbao

Tue 3/24

6:50 am-2:30 pm

1 stop13h 40m

$570

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 3/24

5:05 pm-5:20 pm

1 stop18h 15m

Bilbao

Wed 4/15

5:15 pm-1:15 pm

1 stop27h 00m

$570

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 3/24

3:18 pm-5:20 pm

2 stops20h 02m

Bilbao

Wed 4/15

6:45 am-1:15 pm

1 stop13h 30m

$574

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 3/24

6:45 pm-9:55 pm

2 stops21h 10m

Bilbao

Wed 4/15

6:50 am-6:00 pm

1 stop18h 10m

$576

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Wed 3/18

6:35 pm-9:55 pm

2 stops21h 20m

Bilbao

Tue 3/24

6:45 am-3:10 pm

1 stop14h 25m

$576

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sat 3/21

9:55 pm-4:40 pm

2 stops36h 45m

Bilbao

Wed 4/1

6:50 am-5:25 pm

2 stops17h 35m

$602

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sat 3/21

5:05 pm-10:25 pm

1 stop23h 20m

Bilbao

Wed 4/1

5:15 pm-1:15 pm

1 stop27h 00m

$621

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 5/5

3:30 pm-5:35 pm

2 stops19h 05m

$400

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Wed 5/6

3:30 pm-5:30 pm

2 stops19h 00m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 14 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 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 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.

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 14, 2026.
Read reviews from past customers who have flown 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.
United Airlines
7.4
Good
9,156 reviews

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,156 reviews
United Airlines
7.4
Good
9,156 reviews

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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. 1 airline has 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 and KLM fly from Houston George Bush Intcntl Airport to Bilbao in about 18h 15m. The time it takes to get you to your destination can typically vary by up to 2h 55m. Airlines will cover a distance of 4942 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Houston George Bush Intcntl Airport to Bilbao round-trip?

    Our cheapest airline available from Houston George Bush Intcntl Airport to Bilbao is United Airlines. Our recent data shows that you can find tickets from as low as $690 on this airline.

  • 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.

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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.
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George Bush Intcntl to San Sebastian flights

Top airline flying from George Bush Intcntl to Bilbao

Discover the top airline 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$690Average$1,021FlexibilityNo cancel feeOn-time69%

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