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George Bush Intcntl

$485+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — IAH
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Round-trip from

$699
(Delta)

One-way from

$485
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$941
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. 12% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This KLM deal was found by Cheapflights users on 3/27. 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.
Thu 4/33:35 pmLIS - IAH
1 stop27h 40mMultiple Airlines
Thu 4/173:50 pmIAH - LIS
1 stop17h 00mMultiple Airlines
Deal found 3/27$698
This Delta deal was found by Cheapflights users on 3/27. 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.
Wed 4/165:00 amLIS - IAH
1 stop14h 15mDelta
Wed 4/2312:52 pmIAH - LIS
2 stops19h 58mDelta
Deal found 3/27$699
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/311:05 amLIS - IAH
1 stop16h 33mBritish Airways
Thu 4/173:25 pmIAH - LIS
1 stop25h 35mBritish Airways
Deal found 3/27$701
This KLM deal was found by Cheapflights users on 3/27. 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 4/1611:40 amLIS - IAH
1 stop31h 35mKLM
Wed 4/233:30 pmIAH - LIS
1 stop25h 20mKLM
Deal found 3/27$706
This Air France deal was found by Cheapflights users on 3/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/35:40 amLIS - IAH
2 stops17h 46mAir France
Thu 4/173:50 pmIAH - LIS
1 stop17h 00mAir France
Deal found 3/27$709
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 4/311:05 amLIS - IAH
1 stop16h 33mAmerican Airlines
Thu 4/173:25 pmIAH - LIS
1 stop25h 35mAmerican Airlines
Deal found 3/27$746
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:00 amLIS - IAH
1 stop17h 33mAir Canada
Thu 11/209:30 amIAH - LIS
1 stop17h 50mAir Canada
Deal found 3/27$784
This Expedia deal was found by Cheapflights users on 3/27. 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.
Fri 5/95:55 amLIS - IAH
2 stops20h 16mSWISS
Sun 5/114:15 pmIAH - LIS
2 stops25h 05mSWISS
Deal found 3/27$814
This Iberia deal was found by Cheapflights users on 3/27. 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.
Thu 11/136:30 amLIS - IAH
2 stops21h 29mIberia
Thu 11/206:20 pmIAH - LIS
2 stops17h 45mIberia
Deal found 3/27$828
This Finnair deal was found by Cheapflights users on 3/27. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/37:20 amLIS - IAH
2 stops22h 04mFinnair
Thu 4/174:57 pmIAH - LIS
2 stops24h 03mFinnair
Deal found 3/27$940
This SmartFares deal was found by Cheapflights users on 3/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:55 amLIS - IAH
1 stop19h 10mTurkish Airlines
Tue 9/29:00 pmIAH - LIS
1 stop30h 55mTurkish Airlines
Deal found 3/27$946
This StudentUniverse deal was found by Cheapflights users on 3/27. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/111:25 amLIS - IAH
2 stops28h 19mAer Lingus
Tue 9/29:00 pmIAH - LIS
2 stops18h 35mAer Lingus
Deal found 3/27$1,333

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 March 28, 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

Wed 4/16

5:00 am-1:15 pm

1 stop14h 15m

Houston George Bush Intcntl

Wed 4/23

12:52 pm-2:50 pm

2 stops19h 58m

$699

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 4/16

11:40 am-1:15 pm

1 stop31h 35m

Houston George Bush Intcntl

Wed 4/23

3:30 pm-10:50 pm

1 stop25h 20m

$706

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 4/17

4:30 pm-1:40 pm

1 stop27h 10m

Houston George Bush Intcntl

Sat 5/3

3:25 pm-6:05 pm

1 stop20h 40m

$710

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 5/9

6:35 am-8:55 pm

2 stops20h 20m

Houston George Bush Intcntl

Sun 5/11

9:40 pm-11:00 pm

1 stop19h 20m

$789

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 5/9

5:55 am-8:11 pm

2 stops20h 16m

Houston George Bush Intcntl

Sun 5/11

4:15 pm-11:20 pm

2 stops25h 05m

$814

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 9/1

5:55 am-7:05 pm

1 stop19h 10m

Houston George Bush Intcntl

Tue 9/2

9:00 pm-9:55 am

1 stop30h 55m

$946

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 9/1

11:25 am-9:44 am

2 stops28h 19m

Houston George Bush Intcntl

Tue 9/2

9:00 pm-9:35 pm

2 stops18h 35m

$1,333

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 7/12

5:55 am-10:42 pm

3 stops46h 47m

$485

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 8/30

10:15 pm-11:11 pm

2 stops30h 56m

$574

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 5/3

10:55 am-7:05 pm

1 stop38h 10m

$649

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 13 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 March 28, 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
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
1,321 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
1,267 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
3,744 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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 $574 on Aer Lingus. Other airlines that offer cheap prices include Turkish Airlines from $649 and Finnair from $663 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
Conroe
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Alternative routes for Portugal to George Bush Intcntl

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$738Average$799FlexibilityNo cancel feeOn-time70%
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