IAH - BIO

$598 Find Cheap Flights from Houston George Bush Airport to Bilbao

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from George Bush Intcntl to Bilbao departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Bilbao

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Bilbao, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Bilbao, as well as popular online travel agencies
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Cheap Flights from George Bush Intcntl to Bilbao (IAH-BIO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from George Bush Intcntl to Bilbao that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from George Bush Intcntl to Bilbao

Mon, Sep 29 - Tue, Oct 7
Lufthansa Logo
3:35 pm - 10:25 pmIAH-BIO
23h 50m1 stop
Lufthansa Logo
6:45 am - 5:17 pmBIO-IAH
17h 32m2 stops
$598Lufthansa
Find Deal
Mon, Sep 29 - Tue, Oct 7
Lufthansa Logo
6:50 pm - 10:25 pmIAH-BIO
20h 35m2 stops
Lufthansa Logo
6:45 am - 5:17 pmBIO-IAH
17h 32m2 stops
$602Lufthansa
Find Deal
Mon, Sep 29 - Tue, Oct 7
Lufthansa Logo
3:35 pm - 10:25 pmIAH-BIO
23h 50m1 stop
Lufthansa Logo
7:30 pm - 1:35 pmBIO-IAH
25h 05m1 stop
$607Lufthansa
Find Deal
Tue, Oct 21 - Wed, Nov 5
American Airlines Logo
6:23 pm - 4:55 pmIAH-BIO
15h 32m2 stops
American Airlines Logo
6:45 am - 7:51 pmBIO-IAH
20h 06m2 stops
$609American Airlines
Find Deal
Tue, Oct 21 - Wed, Nov 5
United Airlines Logo
4:45 pm - 11:25 pmIAH-BIO
23h 40m1 stop
United Airlines Logo
12:50 pm - 2:35 pmBIO-IAH
32h 45m1 stop
$611United Airlines
Find Deal
Tue, Oct 21 - Wed, Nov 5
United Airlines Logo
8:15 am - 11:05 amIAH-BIO
19h 50m2 stops
United Airlines Logo
12:50 pm - 2:35 pmBIO-IAH
32h 45m1 stop
$615United Airlines
Find Deal
Tue, Oct 21 - Wed, Nov 5
United Airlines Logo
12:00 pm - 1:20 pmIAH-BIO
18h 20m2 stops
United Airlines Logo
12:50 pm - 2:35 pmBIO-IAH
32h 45m1 stop
$619United Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
6:55 pm - 11:20 pmIAH-BIO
21h 25m1 stop
United Airlines Logo
6:45 am - 6:15 pmBIO-IAH
18h 30m1 stop
$646United Airlines
Find Deal
Fri, Feb 20 - Tue, Feb 24
Air Canada Logo
7:10 am - 12:00 pmIAH-BIO
21h 50m2 stops
Air Canada Logo
6:45 am - 6:49 pmBIO-IAH
19h 04m2 stops
$659Air Canada
Find Deal
Sat, Oct 25 - Sun, Nov 2
Iberia Logo
6:23 pm - 9:50 pmIAH-BIO
44h 27m2 stops
Iberia Logo
9:35 pm - 11:19 pmBIO-IAH
32h 44m2 stops
$685Iberia
Find Deal

Everything you should know

Top airlines
Lufthansa
Cheapest • from $598 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$598
Typical prices: $793-1022
Lufthansa
Mon 9/29Tue 10/7
IAH - BIO • 1 stop
Cheapest one-way
Multiple Airlines
Tue 9/16
IAH - BIO • multi-stop
Start a new search
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Booking Insights

KAYAK's insights & trends for George Bush Intcntl to Bilbao flights

Get data-powered insights and trends into flights from George Bush Intcntl to Bilbao to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Houston George Bush Airport to Bilbao?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Houston George Bush Airport to Bilbao were found on Lufthansa ($598) and American Airlines ($609).

Good to know

Low seasonNovember
Cheapest flight$598
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 39% increase in price.
Flight from Houston George Bush Airport to Bilbao

When to book flights from George Bush Intcntl to Bilbao

Are your dates flexible? Find out the best times to travel from George Bush Intcntl to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Houston George Bush Airport to Bilbao flights

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

    In the last 3 days, the lowest price for a flight from Houston George Bush Intcntl Airport to Bilbao was $598 for a round-trip ticket.

  • Do I need a passport to fly between Houston George Bush Airport and Bilbao?

    Yes

  • Which airports will I be using when flying from Houston George Bush Airport to Bilbao?

    Houston George Bush Airport and Bilbao are both served by 1 main airport. You will leave Houston George Bush Airport from Houston George Bush Intcntl and will be arriving at Bilbao.

  • Which aircraft models fly most regularly from Houston George Bush Airport to Bilbao?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Houston George Bush Airport to Bilbao?

    Star Alliance, and oneworld are the airline alliances operating flights between Houston George Bush Airport and Bilbao, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Houston George Bush Airport to Bilbao?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston George Bush Airport to Bilbao.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston George Bush Airport to Bilbao?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Houston George Bush Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston George Bush Airport to Bilbao?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to Houston George Bush Airport with another airline. Booking your flights between Houston George Bush Airport and BIO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston George Bush Airport to Bilbao?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from Houston George Bush Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from George Bush Intcntl to Bilbao

 
See real verified KAYAK customer reviews for airlines flying from Houston to Bilbao. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from George Bush Intcntl to Bilbao? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8929 reviews
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

6.0 GoodKaren Andrea, Sep 2025IAH - MCO
Read more United Airlines reviews

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

Overall it was good. I missed my connection but I was put on another flight.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

My suitcase was completed destroyed. The top part is broken and unusable now.

Everything you need to know for your flight from George Bush Intcntl to Bilbao

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