$255+ 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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
ago 12 — ago 191
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Houston to Portugal
Keep the following information in mind while searching for Houston to Portugal flight deals. Data was last updated agosto 7, 2025.
Round-trip from | $605 (Ovago) |
|---|---|
One-way from | $255 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $784 |
Find flight deals from Houston to Portugal
Cheapest flights from Houston to PortugalExplore 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 agosto 7, 2025.
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 agosto 7, 2025.
This Ovago deal was found by Cheapflights users on 8/5. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 12/13:50 pmIAH - OPO
1 stop18h 50mBritish Airways
seg 12/158:40 pmOPO - IAH
2 stops30h 50mBritish Airways
Deal found 8/5![British Airways logo]()
$605
This FlightHub deal was found by Cheapflights users on 8/5. 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.
dom 11/304:30 pmIAH - OPO
1 stop16h 45mLufthansa
seg 12/1512:30 pmOPO - IAH
1 stop32h 05mLufthansa
Deal found 8/5![Lufthansa logo]()
$619
This Lufthansa deal was found by Cheapflights users on 8/5. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 12/34:30 pmIAH - OPO
1 stop16h 55mLufthansa
seg 12/154:15 pmOPO - IAH
1 stop28h 20mLufthansa
Deal found 8/5![Lufthansa logo]()
$620
This United Airlines deal was found by Cheapflights users on 8/5. 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.
qua 12/31:34 pmIAH - OPO
2 stops19h 51mUnited Airlines
seg 12/1512:30 pmOPO - IAH
2 stops34h 33mUnited Airlines
Deal found 8/5![United Airlines logo]()
$635
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 11/121:31 pmIAH - OPO
1 stop13h 59mUnited Airlines
dom 11/1612:35 pmOPO - IAH
1 stop15h 56mUnited Airlines
Deal found 8/6![United Airlines logo]()
$642
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 11/1912:00 pmIAH - OPO
2 stops15h 30mUnited Airlines
dom 11/2312:35 pmOPO - IAH
2 stops17h 24mUnited Airlines
Deal found 8/7![United Airlines logo]()
$647
This United Airlines deal was found by Cheapflights users on 8/5. 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.
sex 11/281:31 pmIAH - OPO
1 stop13h 59mUnited Airlines
seg 12/1512:30 pmOPO - IAH
2 stops39h 09mUnited Airlines
Deal found 8/5![United Airlines logo]()
$648
This oojo deal was found by Cheapflights users on 8/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 9/172:25 pmIAH - OPO
1 stop19h 25mTurkish Airlines
ter 10/1410:50 amOPO - IAH
1 stop31h 50mTurkish Airlines
Deal found 8/6![Turkish Airlines logo]()
$653
This Air Canada deal was found by Cheapflights users on 8/5. 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.
qua 11/1211:50 amIAH - OPO
2 stops18h 15mAir Canada
dom 11/166:00 amOPO - IAH
2 stops33h 09mAir Canada
Deal found 8/5![Air Canada logo]()
$659
This Lufthansa deal was found by Cheapflights users on 8/5. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 12/44:30 pmIAH - OPO
1 stop16h 15mLufthansa
seg 12/1512:30 pmOPO - IAH
1 stop32h 05mLufthansa
Deal found 8/5![Lufthansa logo]()
$670
This Mytrip deal was found by Cheapflights users on 8/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/187:20 amIAH - OPO
3 stops21h 15mMultiple Airlines
seg 9/297:25 pmOPO - IAH
3 stops30h 17mMultiple Airlines
Deal found 8/6![Multiple Airlines logo]()
$696
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 9/3010:20 amIAH - LIS
1 stop13h 10mMultiple Airlines
sex 10/105:30 pmLIS - IAH
1 stop21h 14mMultiple Airlines
Deal found 8/6![Multiple Airlines logo]()
$736
Cheapflights Fare Finder
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 agosto 7, 2025.
Use the filters below to find and compare flights from Houston to Portugal that are best for you.
Fly from
Houston
Fly to
Portugal
Route
Depart
Return
Price
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
seg 12/1
3:50 pm-4:40 pm
1 stop18h 50m
Porto
seg 12/15
8:40 pm-9:30 pm
2 stops30h 50m
$605
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
dom 11/30
4:30 pm-3:15 pm
1 stop16h 45m
Porto
seg 12/15
12:30 pm-2:35 pm
1 stop32h 05m
$619
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
qua 12/3
4:30 pm-3:25 pm
1 stop16h 55m
Porto
seg 12/15
4:15 pm-2:35 pm
1 stop28h 20m
$620
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
qua 12/3
1:34 pm-3:25 pm
2 stops19h 51m
Porto
seg 12/15
12:30 pm-5:03 pm
2 stops34h 33m
$635
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
qua 11/12
1:31 pm-9:30 am
1 stop13h 59m
Porto
dom 11/16
12:35 pm-10:31 pm
1 stop15h 56m
$642
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
qua 11/19
12:00 pm-9:30 am
2 stops15h 30m
Porto
dom 11/23
12:35 pm-11:59 pm
2 stops17h 24m
$647
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
sex 11/28
1:31 pm-9:30 am
1 stop13h 59m
Porto
seg 12/15
12:30 pm-9:39 pm
2 stops39h 09m
$648
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
qua 9/17
2:25 pm-3:50 pm
1 stop19h 25m
Porto
ter 10/14
10:50 am-12:40 pm
1 stop31h 50m
$653
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
qua 11/12
11:50 am-12:05 pm
2 stops18h 15m
Porto
dom 11/16
6:00 am-9:09 am
2 stops33h 09m
$659
HoustonPorto
IAH - OPO
IAHOPO
Houston George Bush Intcntl
qui 12/4
4:30 pm-2:45 pm
1 stop16h 15m
Porto
seg 12/15
12:30 pm-2:35 pm
1 stop32h 05m
$670
Showing 1-10 of 60 results
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.
Cheapflights Insights
Everything you need to know about your flight from Houston to Portugal
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 $1,128). 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 agosto 7, 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.
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 agosto 7, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Air France from Houston to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.2
Entertainment
7.9
Food
7.3
Overall
8.0
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Entertainment
7.9
Food
7.3
Overall
8.0
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Entertainment
7.9
Food
7.3
Overall
8.0
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Entertainment
7.9
Food
7.3
Overall
8.0
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Entertainment
7.9
Food
7.3
Overall
8.0
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
Boarding
8.2
Entertainment
7.9
Food
7.3
Overall
8.0
Comfort
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentKim,May 2025
PIH - SLC
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.
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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.
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 agosto 7, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$549 | Average$818 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$563 | Average$918 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$573 | Average$874 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$578 | Average$940 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$585 | Average$840 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$586 | Average$1,081 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$629 | Average$1,087 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$637 | Average$744 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$679 | Average$1,404 | FlexibilityNo cancel fee | On-time76% |