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$275+ Cheap flights from Houston to Portugal

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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Houston to Portugal

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Portugal (PT0). 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 January 21, 2025.

Round-trip from

$551
(United Airlines)

One-way from

$275
(Kiwi.com)
From Houston to Portugal
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One-way flight from Houston to Portugal
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Find flight deals from Houston to Portugal

Cheapest flights from Houston to Portugal
Explore the most affordable flight options available from Houston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/112:44 pmIAH - LIS
1 stop12h 26mUnited Airlines
Mon 3/1712:15 pmLIS - IAH
1 stop36h 05mUnited Airlines
Deal found 1/21$551
This Iberia deal was found by Cheapflights users on 1/20. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/303:55 pmIAH - LIS
1 stop14h 15mMultiple Airlines
Thu 2/136:30 amLIS - IAH
2 stops19h 07mMultiple Airlines
Deal found 1/20$557
This British Airways deal was found by Cheapflights users on 1/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/213:55 pmIAH - LIS
1 stop24h 30mBritish Airways
Thu 2/2710:55 amLIS - IAH
1 stop16h 35mBritish Airways
Deal found 1/20$558
This American Airlines deal was found by Cheapflights users on 1/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2110:18 amIAH - LIS
2 stops15h 37mAmerican Airlines
Thu 2/2712:30 pmLIS - IAH
2 stops17h 09mAmerican Airlines
Deal found 1/20$564
This Virgin Atlantic deal was found by Cheapflights users on 1/19. 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.
Mon 2/312:18 pmIAH - LIS
2 stops13h 42mVirgin Atlantic
Sun 2/910:00 amLIS - IAH
2 stops19h 59mVirgin Atlantic
Deal found 1/19$565
This Delta deal was found by Cheapflights users on 1/20. 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.
Fri 2/216:00 amHOU - LIS
2 stops20h 00mDelta
Fri 2/2810:00 amLIS - HOU
2 stops18h 29mDelta
Deal found 1/20$565
This Delta deal was found by Cheapflights users on 1/20. 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.
Sat 2/154:10 pmIAH - LIS
1 stop17h 00mDelta
Mon 2/2411:25 amLIS - IAH
1 stop32h 10mDelta
Deal found 1/20$566
This Air France deal was found by Cheapflights users on 1/21. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/303:50 pmIAH - LIS
1 stop17h 00mAir France
Sun 4/66:50 pmLIS - IAH
1 stop24h 45mAir France
Deal found 1/21$570
This Expedia deal was found by Cheapflights users on 1/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/3012:16 pmIAH - LIS
2 stops29h 09mIberia
Thu 2/1312:30 pmLIS - IAH
2 stops17h 09mIberia
Deal found 1/20$571
This Aeromexico deal was found by Cheapflights users on 1/20. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/26:37 pmHOU - LIS
2 stops31h 23mAir France
Wed 2/1210:00 amLIS - HOU
2 stops18h 29mAir France
Deal found 1/20$577
This American Airlines deal was found by Cheapflights users on 1/19. 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.
Sun 2/24:18 pmHOU - LIS
2 stops17h 47mAmerican Airlines
Wed 2/1211:15 amLIS - HOU
2 stops17h 23mAmerican Airlines
Deal found 1/19$580
This KLM deal was found by Cheapflights users on 1/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/183:58 pmIAH - LIS
2 stops16h 37mKLM
Mon 2/2411:15 amLIS - IAH
2 stops15h 59mKLM
Deal found 1/20$583

Find flights from Houston to Portugal within your budget

Customize your flight search to find flights from Houston to Portugal 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 January 21, 2025.

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Depart

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Price

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 3/11

2:44 pm-8:10 am

1 stop12h 26m

Lisbon Humberto Delgado

Mon 3/17

12:15 pm-7:20 pm

1 stop36h 05m

$551

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 3/2

9:45 pm-9:45 pm

1 stop18h 00m

Lisbon Humberto Delgado

Mon 3/10

6:30 am-11:24 pm

2 stops21h 54m

$557

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 2/2

5:25 am-8:00 am

2 stops20h 35m

Lisbon Humberto Delgado

Sun 2/9

10:00 am-11:59 pm

2 stops19h 59m

$565

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Fri 2/21

6:00 am-8:00 am

2 stops20h 00m

Lisbon Humberto Delgado

Thu 2/27

8:50 am-10:29 pm

2 stops19h 39m

$565

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 3/30

3:50 pm-2:50 pm

1 stop17h 00m

Lisbon Humberto Delgado

Sun 4/6

6:50 pm-1:35 pm

1 stop24h 45m

$570

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 2/13

3:25 pm-2:35 pm

1 stop17h 10m

Lisbon Humberto Delgado

Mon 2/17

3:25 pm-1:35 pm

1 stop28h 10m

$572

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Sun 2/2

6:37 pm-8:00 am

2 stops31h 23m

Lisbon Humberto Delgado

Wed 2/12

10:00 am-10:29 pm

2 stops18h 29m

$577

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Sun 2/2

4:18 pm-4:05 pm

2 stops17h 47m

Lisbon Humberto Delgado

Wed 2/12

11:15 am-10:38 pm

2 stops17h 23m

$580

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Tue 4/1

7:30 am-9:45 am

2 stops20h 15m

Porto

Tue 4/8

8:40 am-9:14 pm

2 stops18h 34m

$583

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Mon 3/3

2:57 pm-2:35 pm

2 stops17h 38m

Lisbon Humberto Delgado

Tue 3/11

10:00 am-11:06 pm

2 stops18h 06m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 47 results
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Best time to book a flight from Houston to Portugal

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

Travel insights for flights from Houston to Portugal

Get recent, data-driven insights about flights from Houston to Portugal including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Houston to Portugal (average of $612). Flying from Houston to Portugal in June is currently the most expensive (average of $1,247). 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.

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

Find hourly flight availability from Houston to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

When flying from Houston to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated January 21, 2025.
To help decide which airline to fly from Houston to Portugal, see what other customers have to say about American Airlines, United Airlines and British Airways. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
665 reviews
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Houston to Portugal. 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 Houston to Portugal one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $322. Delta flights start at $326 while deals on British Airways start at $380 one-way.

  • What are the most popular routes from Houston to Portugal?

    While some choose either Houston George Bush Intcntl - Lisbon Humberto Delgado or Houston Hobby - Porto, Houston Hobby - Lisbon Humberto Delgado is the most popular route from Houston to Portugal.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Houston to Portugal 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 Portugal?

    Currently, January is the cheapest month in which you can book a flight from Houston to Portugal (average of $612). Flying from Houston to Portugal in June is currently the most expensive (average of $1,247). 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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Alternative routes for Houston to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Houston to Portugal

Discover the top 9 airlines that operate flights from Houston to Portugal. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$542Average$1,536FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$563Average$986FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$572Average$906FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$578Average$1,043FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$585Average$872FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$606Average$1,244FlexibilityNo cancel feeOn-time69%
KLMCheapest$641Average$1,071FlexibilityNo cancel feeOn-time75%
DeltaCheapest$648Average$953FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$656Average$795FlexibilityNo cancel feeOn-time77%
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