IAH - BIO

$668 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 3/24. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$668
Turkish Airlines
Tue 3/24Wed 4/15
IAH - BIO • 1 stop
Cheapest one-way
Multiple Airlines
Wed 12/17
IAH - BIO • multi-stop
Top airlines
Turkish Airlines
Cheapest • from $724 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight Deals

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

Tue, Mar 24 - Wed, Apr 15
Turkish Airlines Logo
10:05 pm - 4:10 pm
IAH
-
BIO
36h 05m1 stop
Turkish Airlines Logo
6:20 pm - 7:15 pm
BIO
-
IAH
31h 55m1 stop
$668Turkish Airlines
Thu, Jan 22 - Mon, Jan 26
Turkish Airlines Logo
9:05 pm - 11:00 am
IAH
-
BIO
30h 55m1 stop
Turkish Airlines Logo
12:00 pm - 7:10 pm
BIO
-
IAH
38h 10m1 stop
$734Turkish Airlines
Thu, May 7 - Wed, May 20
Multiple Airlines Logo
9:10 pm - 10:55 am
IAH
-
BIO
30h 45m1 stop
Multiple Airlines Logo
10:50 pm - 7:15 pm
BIO
-
IAH
27h 25m2 stops
$755Multiple Airlines
Tue, Mar 24 - Wed, Apr 15
Lufthansa Logo
6:45 pm - 9:55 pm
IAH
-
BIO
21h 10m2 stops
Lufthansa Logo
6:45 am - 6:00 pm
BIO
-
IAH
18h 15m1 stop
$759Lufthansa
Tue, Mar 24 - Wed, Apr 15
Lufthansa Logo
6:45 pm - 9:55 pm
IAH
-
BIO
21h 10m2 stops
Lufthansa Logo
6:45 am - 5:25 pm
BIO
-
IAH
17h 40m2 stops
$768Lufthansa
Tue, Mar 24 - Wed, Apr 15
Lufthansa Logo
6:45 pm - 9:55 pm
IAH
-
BIO
21h 10m2 stops
Lufthansa Logo
6:45 am - 7:06 pm
BIO
-
IAH
19h 21m2 stops
$769Lufthansa
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
10:24 am - 10:50 am
IAH
-
BIO
17h 26m2 stops
United Airlines Logo
12:50 pm - 6:15 pm
BIO
-
IAH
36h 25m1 stop
$796United Airlines
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
10:24 am - 10:50 am
IAH
-
BIO
17h 26m2 stops
United Airlines Logo
6:45 am - 9:28 pm
BIO
-
IAH
21h 43m2 stops
$836United Airlines
Thu, May 7 - Wed, May 20
Multiple Airlines Logo
9:10 pm - 7:35 am
IAH
-
BIO
27h 25m2 stops
Multiple Airlines Logo
10:50 pm - 7:15 pm
BIO
-
IAH
27h 25m2 stops
$875Multiple Airlines
Fri, May 15 - Sun, May 31
Turkish Airlines Logo
9:10 pm - 5:20 pm
IAH
-
BIO
37h 10m1 stop
Turkish Airlines Logo
6:20 pm - 12:45 pm
BIO
-
IAH
25h 25m1 stop
$894Turkish Airlines
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 Turkish Airlines ($724) and United Airlines ($796).

Which airlines fly non-stop between Houston George Bush Intcntl Airport and Bilbao?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Houston George Bush Intcntl Airport to Bilbao.

There is just one airline that flies from Houston George Bush Intcntl Airport to Bilbao direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is $690.

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Good to know

Cheapest flight$668
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 $668 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 is the only airline alliance operating flights between Houston George Bush Airport and Bilbao.

  • 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 9092 reviews
6.6Food
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

6.0 GoodAnonymous, Nov 2025
IAH - MEX
Read more United Airlines reviews

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

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

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

Information on your arrival and departure airports

Houston George Bush Airport (IAH)
Bilbao (BIO)