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$589+ Cheap flights from Houston 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.
HOU — BIO
juin 17 — juin 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Houston to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) 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 juin 12, 2025.

Round-trip from

$589
(United Airlines)

Popular in

June

Cheapest in

February

Average price

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

Cheapest flights from Houston to Bilbao
Explore the most affordable flight options available from Houston to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juin 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.
lun. 9/294:45 pmIAH - BIO
1 stop15h 00mUnited Airlines
mar. 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.
lun. 9/293:35 pmIAH - BIO
1 stop23h 50mLufthansa
mar. 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.
lun. 9/2910:00 amIAH - BIO
2 stops23h 05mAir Canada
mar. 10/76:45 amBIO - IAH
2 stops22h 29mAir Canada
Deal found 6/12$601
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/296:44 pmHOU - BIO
2 stops15h 11mAmerican Airlines
mar. 10/71:30 pmBIO - HOU
2 stops17h 14mAmerican Airlines
Deal found 6/11$753
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.
dim. 8/311:00 amIAH - BIO
2 stops22h 05mMultiple Airlines
mar. 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.
dim. 8/37:10 amIAH - BIO
2 stops21h 10mDelta
mar. 8/127:10 amBIO - IAH
2 stops17h 24mDelta
Deal found 6/11$854
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/46:40 pmHOU - BIO
2 stops14h 50mDelta
mar. 8/127:10 amBIO - HOU
2 stops22h 21mDelta
Deal found 6/12$889
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.
mar. 7/13:50 pmIAH - BIO
1 stop17h 50mKLM
mar. 7/85:15 pmBIO - IAH
1 stop27h 00mKLM
Deal found 6/10$1,128
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/12:30 pmHOU - BIO
2 stops23h 20mIberia
mar. 7/89:15 amBIO - HOU
2 stops21h 30mIberia
Deal found 6/10$1,251
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.
mer. 7/305:26 amIAH - BIO
2 stops20h 04mIberia
jeu. 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.
mer. 7/26:59 pmIAH - BIO
2 stops33h 31mTAP AIR PORTUGAL
mer. 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.
lun. 8/119:00 pmIAH - BIO
1 stop37h 25mTurkish Airlines
ven. 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 Houston 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 juin 12, 2025.
Use the filters below to find and compare flights from Houston to Bilbao that are best for you.

Fly from

Houston

Fly to

Bilbao

Route

Depart

Return

Price

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

lun. 9/29

4:45 pm-2:45 pm

1 stop15h 00m

Bilbao

mar. 10/7

6:45 am-1:35 pm

1 stop13h 50m

$589

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

lun. 9/29

3:35 pm-10:25 pm

1 stop23h 50m

Bilbao

mar. 10/7

6:45 am-1:35 pm

1 stop13h 50m

$592

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

lun. 9/29

10:00 am-4:05 pm

2 stops23h 05m

Bilbao

mar. 10/7

6:45 am-10:14 pm

2 stops22h 29m

$601

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

dim. 8/3

11:00 am-4:05 pm

2 stops22h 05m

Bilbao

mar. 8/12

6:45 am-1:35 pm

1 stop13h 50m

$841

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

dim. 8/3

7:10 am-11:20 am

2 stops21h 10m

Bilbao

mar. 8/12

7:10 am-5:34 pm

2 stops17h 24m

$854

HoustonBilbao

HOU - BIO

HOUBIO

Houston Hobby

lun. 8/4

6:40 pm-4:30 pm

2 stops14h 50m

Bilbao

mar. 8/12

7:10 am-10:31 pm

2 stops22h 21m

$889

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

mar. 7/1

3:50 pm-4:40 pm

1 stop17h 50m

Bilbao

mar. 7/8

5:15 pm-1:15 pm

1 stop27h 00m

$1,128

HoustonBilbao

HOU - BIO

HOUBIO

Houston Hobby

mar. 7/1

2:30 pm-8:50 pm

2 stops23h 20m

Bilbao

mar. 7/8

9:15 am-11:45 pm

2 stops21h 30m

$1,251

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

mer. 7/30

5:26 am-8:30 am

2 stops20h 04m

Bilbao

jeu. 7/31

5:35 pm-5:20 pm

2 stops30h 45m

$1,574

HoustonBilbao

IAH - BIO

IAHBIO

Houston George Bush Intcntl

mer. 7/2

6:59 pm-11:30 am

2 stops33h 31m

Bilbao

mer. 7/16

12:25 pm-8:38 am

3 stops27h 13m

$1,618

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 14 results
1
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Best time to book a flight from Houston to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Houston 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 to Bilbao

What is the cheapest time of day to fly from HOU to BIO?

Find hourly flight availability from Houston 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 juin 12, 2025.

When flying from Houston to Bilbao, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 29% versus a flight in the morning.

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 juin 12, 2025.
See what other customers who have flown with Delta, KLM and United Airlines from Houston to Bilbao have to say. 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.
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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 Houston 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?

    Bilbao (BIO) is the airport you will fly into if you book a flight from Houston to Bilbao. You should not have trouble finding flights to Bilbao from Houston; the airport handles an average of 0 inbound flights from Houston per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Bilbao airport from Houston. It is only a 3.0 mi journey from Bilbao (BIO) to Bilbao’s city center.

  • What are the cheapest airlines flying from Houston to Bilbao round-trip?

    Our cheapest airline available from Houston 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. You may be able to fly from Houston to Bilbao for 47% less than the average price by searching for these airlines.

  • Can I find deals for flights from Houston to Bilbao that include hotel bookings?

    Yes. In addition to deals on Houston to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Bilbao?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Bilbao.

  • Can I find deals for business class flights from Houston to Bilbao?

    Yes. Cheapflights offers flight deals from Houston 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 to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Houston to Bilbao (average of $541). Flying from Houston 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

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Top 4 airlines flying from Houston to Bilbao

Discover the top 4 airlines that operate flights from Houston 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 juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$554Average$1,277FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$621Average$880FlexibilityNo cancel feeOn-time76%
KLMCheapest$695Average$1,234FlexibilityNo cancel feeOn-time75%
DeltaCheapest$868Average$955FlexibilityNo cancel feeOn-timeN/A

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