HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bilbao

$589+ 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
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Bilbao with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$589
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$1,773
From Houston George Bush Intcntl to Bilbao
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($406 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($73 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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 stop15h 00mUnited Airlines
Tue 10/76:45 amBIO - IAH
1 stop13h 50mUnited Airlines
Deal found 6/10$589
This FlightHub deal was found by Cheapflights users on 6/12. 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.
Mon 9/293:35 pmIAH - BIO
1 stop23h 50mLufthansa
Tue 10/76:45 amBIO - IAH
1 stop13h 50mLufthansa
Deal found 6/12$592
This Air Canada deal was found by Cheapflights users on 6/12. 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 Air Canada 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 6/12$601
This United deal was found by Cheapflights users on 6/11. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/311:00 amIAH - BIO
2 stops22h 05mMultiple Airlines
Tue 8/126:45 amBIO - IAH
1 stop13h 50mMultiple Airlines
Deal found 6/11$841
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:10 amIAH - BIO
2 stops21h 10mDelta
Tue 8/127:10 amBIO - IAH
2 stops17h 24mDelta
Deal found 6/11$854
This KLM deal was found by Cheapflights users on 6/10. 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 7/13:50 pmIAH - BIO
1 stop17h 50mKLM
Tue 7/85:15 pmBIO - IAH
1 stop27h 00mKLM
Deal found 6/10$1,128
This Iberia deal was found by Cheapflights users on 6/10. 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.
Wed 7/305:26 amIAH - BIO
2 stops20h 04mIberia
Thu 7/315:35 pmBIO - IAH
2 stops30h 45mIberia
Deal found 6/10$1,574
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/9. 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 TAP AIR PORTUGAL 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
3 stops27h 13mTAP AIR PORTUGAL
Deal found 6/9$1,618
This AranGrant deal was found by Cheapflights users on 6/11. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/119:00 pmIAH - BIO
1 stop37h 25mTurkish Airlines
Fri 8/2212:05 pmBIO - IAH
1 stop38h 00mTurkish Airlines
Deal found 6/11$3,818

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 June 12, 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-2:45 pm

1 stop15h 00m

Bilbao

Tue 10/7

6:45 am-1:35 pm

1 stop13h 50m

$589

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Mon 9/29

3:35 pm-10:25 pm

1 stop23h 50m

Bilbao

Tue 10/7

6:45 am-1:35 pm

1 stop13h 50m

$592

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

$601

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sun 8/3

11:00 am-4:05 pm

2 stops22h 05m

Bilbao

Tue 8/12

6:45 am-1:35 pm

1 stop13h 50m

$841

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Sun 8/3

7:10 am-11:20 am

2 stops21h 10m

Bilbao

Tue 8/12

7:10 am-5:34 pm

2 stops17h 24m

$854

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 7/1

3:50 pm-4:40 pm

1 stop17h 50m

Bilbao

Tue 7/8

5:15 pm-1:15 pm

1 stop27h 00m

$1,128

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Wed 7/30

5:26 am-8:30 am

2 stops20h 04m

Bilbao

Thu 7/31

5:35 pm-5:20 pm

2 stops30h 45m

$1,574

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Wed 7/2

6:59 pm-11:30 am

2 stops33h 31m

Bilbao

Wed 7/16

12:25 pm-8:38 am

3 stops27h 13m

$1,618

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Mon 8/11

9:00 pm-5:25 pm

1 stop37h 25m

Bilbao

Fri 8/22

12:05 pm-7:05 pm

1 stop38h 00m

$3,818

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

Tue 6/17

8:00 am-9:40 am

3 stops42h 40m

$1,743

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
1
2

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 June 12, 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.

Rainfall in Bilbao by month

Plan your trip to Bilbao by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bilbao ranges from 2.4 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Bilbao when rainfall is around 2.4 in.

Temperature in Bilbao by month

Plan your trip to Bilbao by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bilbao, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,848 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $589 on this airline. Additional options worth looking into are Lufthansa and Air Canada, starting at $592 and $601 round-trip.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$621Average$880FlexibilityNo cancel feeOn-time76%
KLMCheapest$730Average$1,396FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$802Average$1,110FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.