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$393+ Cheap flights from Portugal to Houston

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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — HOU
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap flight deals from Portugal to Houston

Cheapest flights from Portugal to Houston
Explore the most affordable flight options available from Portugal to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:00 amLIS - IAH
1 stop19h 15mLufthansa
Thu 1/86:55 pmIAH - LIS
1 stop21h 55mLufthansa
Deal found 12/7$828
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:00 amLIS - IAH
1 stop19h 15mMultiple Airlines
Thu 1/84:20 pmIAH - LIS
2 stops16h 15mMultiple Airlines
Deal found 12/7$845
This United Airlines deal was found by Cheapflights users on 12/8. 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.
Fri 12/265:00 amLIS - IAH
1 stop19h 15mUnited Airlines
Thu 1/82:30 pmIAH - LIS
1 stop11h 40mUnited Airlines
Deal found 12/8$849
This United Airlines deal was found by Cheapflights users on 12/8. 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.
Fri 12/1910:15 amLIS - IAH
1 stop14h 55mUnited Airlines
Thu 1/82:30 pmIAH - LIS
1 stop11h 40mUnited Airlines
Deal found 12/8$893
This American Airlines deal was found by Cheapflights users on 12/8. 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.
Fri 12/2611:05 amLIS - IAH
2 stops28h 50mAmerican Airlines
Thu 1/82:02 pmIAH - LIS
1 stop13h 03mAmerican Airlines
Deal found 12/8$900
This Virgin Atlantic deal was found by Cheapflights users on 12/7. 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.
Fri 12/2610:55 amLIS - HOU
2 stops18h 16mVirgin Atlantic
Thu 1/85:45 amHOU - LIS
2 stops20h 15mVirgin Atlantic
Deal found 12/7$906
This Virgin Atlantic deal was found by Cheapflights users on 12/7. 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.
Fri 12/2610:55 amLIS - IAH
2 stops18h 56mVirgin Atlantic
Thu 1/811:54 amIAH - LIS
2 stops14h 06mVirgin Atlantic
Deal found 12/7$906
This Delta deal was found by Cheapflights users on 12/8. 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.
Fri 12/2610:55 amLIS - HOU
2 stops18h 16mDelta
Thu 1/811:09 amHOU - LIS
2 stops14h 51mDelta
Deal found 12/8$912
This American Airlines deal was found by Cheapflights users on 12/8. 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.
Fri 12/1911:05 amLIS - IAH
2 stops18h 25mAmerican Airlines
Thu 1/810:20 amIAH - LIS
2 stops16h 45mAmerican Airlines
Deal found 12/8$915
This British Airways deal was found by Cheapflights users on 12/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:45 pmLIS - IAH
1 stop25h 20mBritish Airways
Thu 1/83:50 pmIAH - LIS
1 stop24h 05mBritish Airways
Deal found 12/7$923
This American Airlines deal was found by Cheapflights users on 12/6. 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.
Fri 12/267:05 amLIS - HOU
2 stops18h 39mAmerican Airlines
Thu 1/810:35 amHOU - LIS
2 stops16h 30mAmerican Airlines
Deal found 12/6$1,050
This Cheapflightsfares deal was found by Cheapflights users on 12/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:45 pmLIS - HOU
2 stops17h 48mMultiple Airlines
Fri 12/124:25 pmHOU - LIS
2 stops16h 25mMultiple Airlines
Deal found 12/6$2,866

Find flight deals from Portugal to Houston

Keep the following information in mind while searching for Portugal to Houston flight deals. Data was last updated December 8, 2025.

Round-trip from

$703
(Mytrip)

One-way from

$393
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$929
From Portugal to Houston
Search Deals
One-way flight from Portugal to Houston
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($141 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to Houston 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 December 8, 2025.
Use the filters below to find and compare flights from Portugal to Houston that are best for you.

Fly from

Portugal

Fly to

Houston

Route

Depart

Return

Price

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 1/12

11:35 am-3:15 pm

3 stops33h 40m

Houston George Bush Intcntl

Wed 1/28

8:30 am-8:20 pm

2 stops29h 50m

$728

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 1/30

6:45 pm-11:11 am

2 stops22h 26m

Houston George Bush Intcntl

Thu 2/5

6:25 am-5:25 am

1 stop17h 00m

$742

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 12/26

5:00 am-6:15 pm

1 stop19h 15m

Houston George Bush Intcntl

Thu 1/8

6:55 pm-10:50 pm

1 stop21h 55m

$837

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 12/26

5:00 am-6:15 pm

1 stop19h 15m

Houston George Bush Intcntl

Thu 1/8

4:20 pm-2:35 pm

2 stops16h 15m

$845

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 12/26

5:00 am-6:15 pm

1 stop19h 15m

Houston George Bush Intcntl

Thu 1/8

2:30 pm-8:10 am

1 stop11h 40m

$849

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 1/12

5:00 am-6:15 pm

1 stop19h 15m

Houston George Bush Intcntl

Wed 1/28

8:16 pm-9:20 am

2 stops31h 04m

$853

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Fri 1/30

5:00 am-10:33 pm

2 stops23h 33m

Houston Hobby

Thu 2/5

11:09 am-11:20 am

2 stops18h 11m

$862

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Thu 1/22

5:00 am-10:33 pm

2 stops23h 33m

Houston Hobby

Thu 1/29

11:09 am-11:20 am

2 stops18h 11m

$862

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 1/12

11:25 am-11:56 pm

2 stops18h 31m

Houston George Bush Intcntl

Wed 1/28

9:54 am-11:20 am

2 stops19h 26m

$862

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 2/3

8:20 am-12:45 am

2 stops22h 25m

Houston George Bush Intcntl

Sat 2/7

6:16 pm-9:05 am

2 stops32h 49m

$881

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 31 results
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Best time to book a flight from Portugal to Houston

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

What is the cheapest month to book a flight from Portugal to Houston?

Currently, April is the cheapest month in which you can book a flight from Portugal to Houston (average of $583). Flying from Portugal to Houston in July is currently the most expensive (average of $1,000). 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.

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated December 8, 2025.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Portugal to Houston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,089 reviews

Overall

7.4

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
United Airlines
7.4
Good
9,089 reviews
United Airlines
7.4
Good
9,089 reviews

Overall

7.4

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).
American Airlines
7.2
Good
11,045 reviews
United Airlines
7.4
Good
9,089 reviews

Overall

7.4

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

AMS - EWR

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

Related info for your journey

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

  • How long is the flight from Portugal to Houston?

    Departing from Portugal to Houston will take you 17h 41m. The distance from Portugal to Houston is about 4777 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Portugal to Houston one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $612. Lufthansa flights start at $837 while deals on United Airlines start at $864 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal to Houston 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?

    Currently, April is the cheapest month in which you can book a flight from Portugal to Houston (average of $583). Flying from Portugal to Houston in July is currently the most expensive (average of $1,000). 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 2 airlines flying from Portugal to Houston

Discover the top 2 airlines that operate flights from Portugal to Houston. 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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$675Average$813FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$794Average$851FlexibilityNo cancel feeOn-time69%

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