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$591+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — BIO
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 July 2, 2025.

Round-trip from

$591
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$1,607
From Houston George Bush Intcntl to Bilbao
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Highest demand for flights based on searches. 34% potential increase in price ($554 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($80 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 2, 2025.

This United Airlines deal was found by Cheapflights users on 6/30. 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.
Mon 9/294:45 pmIAH - BIO
1 stop23h 40mUnited Airlines
Tue 10/76:45 amBIO - IAH
1 stop13h 50mUnited Airlines
Deal found 6/30$591
This FlightHub deal was found by Cheapflights users on 6/30. 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.
Mon 9/293:35 pmIAH - BIO
1 stop14h 45mLufthansa
Tue 10/76:45 amBIO - IAH
1 stop13h 50mLufthansa
Deal found 6/30$594
This FlightHub deal was found by Cheapflights users on 6/30. 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.
Mon 9/2910:00 amIAH - BIO
2 stops23h 05mAir Canada
Tue 10/76:45 amBIO - IAH
2 stops22h 29mAir Canada
Deal found 6/30$603
This Iberia deal was found by Cheapflights users on 7/1. 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 9/296:35 pmIAH - BIO
2 stops15h 20mIberia
Tue 10/71:30 pmBIO - IAH
2 stops17h 05mIberia
Deal found 7/1$604
This Delta deal was found by Cheapflights users on 7/1. 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 11/124:05 pmIAH - BIO
1 stop12h 25mDelta
Sun 11/166:50 amBIO - IAH
1 stop13h 40mDelta
Deal found 7/1$670
This Air France deal was found by Cheapflights users on 7/2. 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.
Fri 8/293:50 pmIAH - BIO
1 stop23h 10mAir France
Sat 9/137:10 amBIO - IAH
1 stop13h 25mAir France
Deal found 7/2$972
This Mytrip deal was found by Cheapflights users on 7/2. 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 8/297:35 amIAH - BIO
3 stops29h 30mMultiple Airlines
Sat 9/136:55 amBIO - IAH
2 stops32h 04mMultiple Airlines
Deal found 7/2$975
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 8/96:50 pmIAH - BIO
2 stops19h 00mAmerican Airlines
Sun 8/171:30 pmBIO - IAH
2 stops17h 53mAmerican Airlines
Deal found 6/30$994
This Turkish Airlines deal was found by Cheapflights users on 7/1. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/109:00 pmIAH - BIO
1 stop31h 05mTurkish Airlines
Sun 7/206:30 pmBIO - IAH
1 stop25h 10mTurkish Airlines
Deal found 7/1$1,693
This oojo deal was found by Cheapflights users on 7/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/26:59 pmIAH - BIO
2 stops33h 31mTAP AIR PORTUGAL
Wed 7/1612:25 pmBIO - IAH
2 stops27h 13mTAP AIR PORTUGAL
Deal found 7/1$1,785

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 July 2, 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

Mon 9/29

4:45 pm-11:25 pm

1 stop23h 40m

Bilbao

Tue 10/7

6:45 am-1:35 pm

1 stop13h 50m

$591

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Mon 9/29

3:35 pm-1:20 pm

1 stop14h 45m

Bilbao

Tue 10/7

6:45 am-1:35 pm

1 stop13h 50m

$594

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Mon 9/29

10:00 am-4:05 pm

2 stops23h 05m

Bilbao

Tue 10/7

6:45 am-10:14 pm

2 stops22h 29m

$603

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Mon 9/29

6:35 pm-4:55 pm

2 stops15h 20m

Bilbao

Tue 10/7

1:30 pm-11:35 pm

2 stops17h 05m

$604

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Fri 8/29

3:50 pm-10:00 pm

1 stop23h 10m

Bilbao

Sat 9/13

7:10 am-1:35 pm

1 stop13h 25m

$972

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Fri 8/29

7:35 am-8:05 pm

3 stops29h 30m

Bilbao

Sat 9/13

6:55 am-7:59 am

2 stops32h 04m

$975

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sat 8/9

6:50 pm-8:50 pm

2 stops19h 00m

Bilbao

Sun 8/17

1:30 pm-12:23 am

2 stops17h 53m

$994

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Thu 7/10

9:00 pm-11:05 am

1 stop31h 05m

Bilbao

Sun 7/20

6:30 pm-12:40 pm

1 stop25h 10m

$1,693

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 July 2, 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 July 2, 2025.
Read reviews from past customers who have flown Air France, United Airlines, and Turkish 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.
Air France
7.5
Good
1,472 reviews

Entertainment

7.0

Food

7.0

Boarding

7.4

Overall

7.5

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air France
7.5
Good
1,472 reviews
Air France
7.5
Good
1,472 reviews

Entertainment

7.0

Food

7.0

Boarding

7.4

Overall

7.5

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
United Airlines
7.4
Good
8,861 reviews
Air France
7.5
Good
1,472 reviews

Entertainment

7.0

Food

7.0

Boarding

7.4

Overall

7.5

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Turkish Airlines
7.3
Good
3,891 reviews
Air France
7.5
Good
1,472 reviews

Entertainment

7.0

Food

7.0

Boarding

7.4

Overall

7.5

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
American Airlines
7.2
Good
10,000 reviews
Air France
7.5
Good
1,472 reviews

Entertainment

7.0

Food

7.0

Boarding

7.4

Overall

7.5

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.
Air Canada
7.1
Good
9,669 reviews
Air France
7.5
Good
1,472 reviews

Entertainment

7.0

Food

7.0

Boarding

7.4

Overall

7.5

Crew

8.2

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

SYLVIA,Apr 2025

TLV - CDG

A newer plane. The flight from TelAviv to Paris was on a new aircraft, wider seat. ,more privacy. Nice toilets. The flight from Paris to Santiago Chile was on a very old aircraft. Awful toilets, outmoded sits etc.

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. 3 airlines have flights to Bilbao from Houston George Bush Intcntl on a regular basis.

  • 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 United Airlines. Our recent data shows that you can find tickets from as low as $591 on this airline. Additional options worth looking into are Lufthansa and Air Canada, starting at $594 and $603 round-trip. Users have found that United Airlines is 43% 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 $1,142). 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

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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 3 airlines flying from George Bush Intcntl to Bilbao

Discover the top 3 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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$621Average$880FlexibilityNo cancel feeOn-time76%
KLMCheapest$730Average$1,575FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$802Average$1,110FlexibilityNo cancel feeOn-time69%

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