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$325+ 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 11/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — BIO
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 agosto 14, 2025.

Round-trip from

$574
(Kiwi.com)

One-way from

$325
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$951
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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Highest demand for flights based on searches. 34% potential increase in price ($544 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($82 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 14, 2025.

This Ticket deal was found by Cheapflights users on 8/12. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/63:35 pmIAH - BIO
1 stop14h 45mLufthansa
mié. 10/156:45 amBIO - IAH
1 stop13h 50mLufthansa
Deal found 8/12$516
This Ticket deal was found by Cheapflights users on 8/12. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/610:00 amIAH - BIO
2 stops23h 05mAir Canada
mié. 10/157:15 amBIO - IAH
2 stops21h 59mAir Canada
Deal found 8/12$538
This United deal was found by Cheapflights users on 8/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/64:20 pmIAH - BIO
2 stops24h 05mMultiple Airlines
mié. 10/156:45 amBIO - IAH
1 stop13h 50mMultiple Airlines
Deal found 8/12$594
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/293:35 pmIAH - BIO
1 stop14h 45mLufthansa
mar. 10/76:45 amBIO - IAH
1 stop13h 50mLufthansa
Deal found 8/12$612
This United Airlines deal was found by Cheapflights users on 8/12. 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.
lun. 9/294:45 pmIAH - BIO
1 stop23h 40mUnited Airlines
mar. 10/76:45 amBIO - IAH
1 stop13h 50mUnited Airlines
Deal found 8/12$641
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2910:00 amIAH - BIO
2 stops23h 05mMultiple Airlines
mar. 10/76:45 amBIO - IAH
1 stop13h 50mMultiple Airlines
Deal found 8/12$646

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 agosto 14, 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

lun. 10/6

3:35 pm-1:20 pm

1 stop14h 45m

Bilbao

mié. 10/15

6:45 am-1:35 pm

1 stop13h 50m

$516

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

lun. 10/6

10:00 am-4:05 pm

2 stops23h 05m

Bilbao

mié. 10/15

7:15 am-10:14 pm

2 stops21h 59m

$538

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

lun. 10/6

4:20 pm-11:25 pm

2 stops24h 05m

Bilbao

mié. 10/15

6:45 am-1:35 pm

1 stop13h 50m

$594

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

lun. 9/29

3:35 pm-1:20 pm

1 stop14h 45m

Bilbao

mar. 10/7

6:45 am-1:35 pm

1 stop13h 50m

$612

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

lun. 9/29

4:45 pm-11:25 pm

1 stop23h 40m

Bilbao

mar. 10/7

6:45 am-1:35 pm

1 stop13h 50m

$641

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

vie. 11/28

1:35 pm-8:20 am

3 stops59h 45m

$325

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

vie. 11/28

4:30 pm-11:20 pm

1 stop23h 50m

$528

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

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 agosto 14, 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Bilbao at noon. Doing so could potentially save you 1% 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 agosto 14, 2025.
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
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 $802 on this airline. Users have found that United Airlines is 21% 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.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Bilbao (average of $541). Flying from Houston George Bush Intcntl Airport to Bilbao in June is currently the most expensive (average of $1,139). 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.

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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 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$802Average$1,109FlexibilityNo cancel feeOn-time69%

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