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George Bush Intcntl

$366+ Cheap flights from Portugal to George Bush Intcntl (IAH)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — IAH
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from Portugal to George Bush Intcntl

Keep the following information in mind while searching for Portugal to George Bush Intcntl flight deals. Data was last updated April 22, 2025.

Round-trip from

$739
(Expedia)

One-way from

$366
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$815
From Portugal to Houston George Bush Intcntl
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One-way flight from Portugal to Houston George Bush Intcntl
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Highest demand for flights based on searches. 13% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Portugal to George Bush Intcntl

Cheapest flights from Portugal to George Bush Intcntl
Explore the most affordable flight options available from Portugal to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This Delta deal was found by Cheapflights users on 4/20. 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.
Mon 4/285:00 amLIS - IAH
1 stop14h 15mDelta
Mon 5/123:50 pmIAH - LIS
1 stop17h 00mDelta
Deal found 4/20$735
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/96:35 amLIS - IAH
2 stops22h 56mMultiple Airlines
Tue 6/243:20 pmIAH - LIS
1 stop20h 35mMultiple Airlines
Deal found 4/21$739
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Mon 6/911:05 amLIS - IAH
2 stops18h 26mAmerican Airlines
Tue 6/241:25 pmIAH - LIS
1 stop13h 40mAmerican Airlines
Deal found 4/21$752
This Virgin Atlantic deal was found by Cheapflights users on 4/21. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1110:00 amLIS - IAH
2 stops19h 59mVirgin Atlantic
Tue 5/279:40 amIAH - LIS
2 stops19h 05mVirgin Atlantic
Deal found 4/21$761
This Mytrip deal was found by Cheapflights users on 4/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/911:25 amLIS - IAH
2 stops27h 17mAir Canada
Tue 6/247:20 amIAH - LIS
2 stops20h 00mAir Canada
Deal found 4/21$874
This Gotogate deal was found by Cheapflights users on 4/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:15 pmLIS - IAH
2 stops27h 00mAer Lingus
Tue 9/233:30 pmIAH - LIS
2 stops24h 05mAer Lingus
Deal found 4/20$3,322
This KLM deal was found by Cheapflights users on 4/21. 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.
Wed 9/1711:40 amLIS - IAH
1 stop31h 35mKLM
Tue 9/233:30 pmIAH - LIS
1 stop21h 10mKLM
Deal found 4/21$3,391
This Iberia deal was found by Cheapflights users on 4/21. 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 9/174:45 pmLIS - IAH
2 stops26h 55mIberia
Tue 9/239:00 pmIAH - LIS
2 stops17h 05mIberia
Deal found 4/21$3,917

Cheapflights Fare Finder

Customize your flight search to find flights from Portugal to George Bush Intcntl 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 April 22, 2025.
Use the filters below to find and compare flights from Portugal to Houston George Bush Intcntl Airport that are best for you.

Fly from

Portugal

Fly to

George Bush Intcntl

Route

Depart

Return

Price

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 6/9

6:35 am-11:31 pm

2 stops22h 56m

Houston George Bush Intcntl

Tue 6/24

3:20 pm-5:55 pm

1 stop20h 35m

$739

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 6/9

5:40 am-1:35 pm

1 stop13h 55m

Houston George Bush Intcntl

Tue 6/24

2:20 pm-2:50 pm

2 stops18h 30m

$741

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 6/9

11:05 am-9:26 pm

1 stop16h 21m

Houston George Bush Intcntl

Tue 6/24

1:25 pm-9:05 am

1 stop13h 40m

$752

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 5/11

10:00 am-11:59 pm

2 stops19h 59m

Houston George Bush Intcntl

Tue 5/27

9:40 am-10:45 am

2 stops19h 05m

$761

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 6/9

11:25 am-8:42 am

2 stops27h 17m

Houston George Bush Intcntl

Tue 6/24

7:20 am-9:20 am

2 stops20h 00m

$874

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 9/17

10:15 pm-7:15 pm

2 stops27h 00m

Houston George Bush Intcntl

Tue 9/23

3:30 pm-9:35 pm

2 stops24h 05m

$3,322

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 9/17

11:40 am-1:15 pm

1 stop31h 35m

Houston George Bush Intcntl

Tue 9/23

3:30 pm-6:40 pm

1 stop21h 10m

$3,391

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 9/17

4:45 pm-1:40 pm

2 stops26h 55m

Houston George Bush Intcntl

Tue 9/23

9:00 pm-8:05 pm

2 stops17h 05m

$3,917

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 5/6

9:35 pm-8:45 am

3 stops41h 10m

$366

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 9/28

10:55 am-9:36 am

2 stops28h 41m

$621

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 15 results
1
2

Best time to book a flight from Portugal to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Portugal 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 Portugal to Houston George Bush Intcntl Airport

What is the cheapest month to book a flight from Portugal to Houston George Bush Intcntl Airport?

Currently, August is the cheapest month in which you can book a flight from Portugal to Houston George Bush Intcntl Airport (average of $241). Flying from Portugal to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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.

Rainfall in George Bush Intcntl by month

Plan your trip to George Bush Intcntl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston George Bush Intcntl Airport ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston George Bush Intcntl Airport when rainfall is around 3.2 in.

Temperature in George Bush Intcntl by month

Plan your trip to George Bush Intcntl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston George Bush Intcntl Airport, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated April 22, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Portugal to Houston to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Turkish Airlines
7.3
Good
3,773 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Portugal to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Portugal to Houston George Bush Intcntl Airport one-way?

    One-way options have recently been found by users for as low as $621 on Aer Lingus. Other airlines that offer cheap prices include Turkish Airlines from $682 and Finnair from $709 one-way.

  • Can I find deals for flights from Portugal to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Portugal to George Bush Intcntl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to George Bush Intcntl.

  • Can I find deals for business class flights from Portugal to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Portugal to George Bush Intcntl 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 Portugal to Houston George Bush Intcntl Airport?

    Currently, August is the cheapest month in which you can book a flight from Portugal to Houston George Bush Intcntl Airport (average of $241). Flying from Portugal to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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

Traveling to a place near Portugal?

Book flights to Portugal if you plan to visit one of these locations
Montgomery
Conroe
The Woodlands
Spring
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Tomball
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Katy
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Top airline flying from Portugal to George Bush Intcntl

Discover the top airline that operate flights from Portugal to George Bush Intcntl. 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$682Average$792FlexibilityNo cancel feeOn-time70%

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