BIO

$519 Find Cheap Flights from Houston 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 Houston to Bilbao departing on 2/20. 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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Flight Deals

Cheap Flights from Houston to Bilbao

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Houston 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 Houston to Bilbao

Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
4:50 pm - 11:20 pmIAH-BIO
23h 30m1 stop
United Airlines Logo
6:45 am - 6:15 pmBIO-IAH
18h 30m1 stop
$519United Airlines
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Fri, Feb 20 - Tue, Feb 24
United Airlines Logo
4:50 pm - 11:20 pmIAH-BIO
23h 30m1 stop
United Airlines Logo
6:45 am - 8:22 pmBIO-IAH
20h 37m2 stops
$529United 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 - 6:45 pmBIO-IAH
19h 00m2 stops
$545Air Canada
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Sat, Nov 29 - Sun, Dec 7
Iberia Logo
9:28 am - 8:30 amIAH-BIO
16h 02m2 stops
Iberia Logo
9:15 am - 11:35 pmBIO-IAH
21h 20m2 stops
$554Iberia
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Fri, Feb 20 - Tue, Feb 24
Delta Logo
5:35 pm - 4:30 pmHOU-BIO
15h 55m2 stops
Delta Logo
6:50 am - 4:32 pmBIO-HOU
16h 42m2 stops
$640Delta
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Tue, Mar 24 - Wed, Apr 15
Multiple Airlines Logo
5:05 pm - 5:20 pmIAH-BIO
18h 15m1 stop
Multiple Airlines Logo
5:15 pm - 1:15 pmBIO-IAH
27h 00m1 stop
$649Multiple Airlines
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Tue, Mar 24 - Wed, Apr 15
Air Canada Logo
11:50 am - 12:50 pmIAH-BIO
19h 00m2 stops
Air Canada Logo
6:45 am - 8:26 pmBIO-IAH
20h 41m2 stops
$650Air Canada
Find Deal
Tue, Mar 24 - Wed, Apr 15
Multiple Airlines Logo
11:50 am - 12:50 pmIAH-BIO
19h 00m2 stops
Multiple Airlines Logo
6:45 am - 1:35 pmBIO-IAH
13h 50m1 stop
$651Multiple Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
Delta Logo
6:00 am - 11:20 amHOU-BIO
22h 20m2 stops
Delta Logo
6:50 am - 11:07 pmBIO-HOU
23h 17m2 stops
$690Delta
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Sat, Nov 29 - Sun, Dec 7
Iberia Logo
10:11 am - 8:30 amHOU-BIO
15h 19m2 stops
Iberia Logo
9:15 am - 7:52 pmBIO-HOU
17h 37m2 stops
$854Iberia
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $519 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$519
United Airlines
Fri 2/20Tue 2/24
IAH - BIO • 1 stop
Cheapest one-way
$897
United Airlines
Thu 12/18
IAH - BIO • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Bilbao!
Booking Insights

KAYAK's insights & trends for Houston to Bilbao flights

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

What’s the cheapest day of the week to fly from Houston to Bilbao?

The average price of all round-trip flights from Houston to Bilbao clicked on KAYAK for each day over the last 12 months.

For Houston to Bilbao, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Bilbao back to Houston, the best deals are generally found on Saturday, with Sunday being the most expensive.

Good to know

Cheapest flight$519
Flight from Houston George Bush Airport to Bilbao

When to book flights from Houston to Bilbao

Are your dates flexible? Find out the best times to travel from Houston 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 flights from Houston to Bilbao

  • What is the cheapest flight from Houston to Bilbao?

    In the last 3 days, the lowest price for a flight from Houston to Bilbao was $897 for a one-way ticket and $519 for a round-trip.

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

    A passport is required to fly from Houston to Bilbao.

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

    Houston is served by 2 major airports and there is only 1 main airport in Bilbao. You will leave Houston from one of these airports: Houston Hobby or Houston George Bush Intcntl. You will be arriving at Bilbao.

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

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

  • Which airline alliances offer flights from Houston to Bilbao?

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

  • How does KAYAK find such low prices on flights from Houston 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 to Bilbao.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Houston 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Houston 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 Houston 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.
7.9
DeltaOverall score based on 7992 reviews
7.3Food
8.5Crew
7.9Comfort
8.2Boarding
7.9Entertainment
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

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

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.

Everything you need to know for your flight from Houston to Bilbao

Information on your arrival and departure airports

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