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$453+ Cheap flights from Galveston, TX 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
1 adult, Economy
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Cheap flight deals from Galveston to Portugal

Keep the following information in mind while searching for Galveston to Portugal flight deals. Data was last updated septembre 15, 2025.

Round-trip from

$640
(Ovago)

One-way from

$453
(Virgin Atlantic)

Popular in

June

Cheapest in

February

Average price

$916
From Galveston to Portugal
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One-way flight from Galveston to Portugal
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Highest demand for flights based on searches. 20% potential increase in price ($214 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Galveston to Portugal

Cheapest flights from Galveston to Portugal
Explore the most affordable flight options available from Galveston to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 15, 2025.

This Ovago deal was found by Cheapflights users on 9/15. 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.
mer. 11/1912:15 pmHOU - OPO
2 stops25h 45mBritish Airways
mer. 11/268:20 amOPO - HOU
2 stops17h 30mBritish Airways
Deal found 9/15$640
This Delta deal was found by Cheapflights users on 9/14. 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.
sam. 11/156:00 amHOU - LIS
2 stops21h 00mDelta
mer. 11/265:30 amLIS - HOU
2 stops24h 16mDelta
Deal found 9/14$641
This KLM deal was found by Cheapflights users on 9/15. 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.
lun. 10/276:44 pmHOU - FNC
2 stops33h 51mKLM
mer. 11/1210:25 amFNC - HOU
2 stops29h 20mKLM
Deal found 9/15$647
This Delta deal was found by Cheapflights users on 9/14. 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.
mer. 11/56:44 pmHOU - LIS
2 stops16h 46mDelta
sam. 11/155:00 amLIS - HOU
2 stops18h 33mDelta
Deal found 9/14$670
This Delta deal was found by Cheapflights users on 9/14. 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.
mar. 10/142:22 pmHOU - OPO
2 stops19h 13mDelta
mar. 10/216:15 amOPO - HOU
2 stops22h 45mDelta
Deal found 9/14$737
This KLM deal was found by Cheapflights users on 9/14. 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.
mer. 10/296:44 pmHOU - OPO
2 stops15h 41mKLM
mer. 11/56:00 amOPO - HOU
2 stops17h 48mKLM
Deal found 9/14$739
This KLM deal was found by Cheapflights users on 9/15. 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.
sam. 12/66:33 pmHOU - FNC
2 stops33h 02mKLM
lun. 12/1510:25 amFNC - HOU
2 stops29h 19mKLM
Deal found 9/15$746
This Delta deal was found by Cheapflights users on 9/14. 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.
mar. 10/216:00 amHOU - LIS
2 stops20h 00mDelta
dim. 11/25:00 amLIS - HOU
2 stops24h 00mDelta
Deal found 9/14$785
This Delta deal was found by Cheapflights users on 9/15. 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.
jeu. 11/66:44 pmHOU - OPO
2 stops14h 41mDelta
dim. 11/95:00 amOPO - HOU
2 stops24h 46mDelta
Deal found 9/15$787
This KLM deal was found by Cheapflights users on 9/14. 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.
ven. 10/316:44 pmHOU - OPO
2 stops15h 41mKLM
mer. 11/56:00 amOPO - HOU
2 stops17h 48mKLM
Deal found 9/14$829
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
jeu. 12/44:25 pmHOU - LIS
2 stops16h 20mMultiple Airlines
mer. 12/108:45 pmLIS - HOU
2 stops17h 48mMultiple Airlines
Deal found 9/13$851
This KLM deal was found by Cheapflights users on 9/14. 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.
mar. 10/146:44 pmHOU - OPO
2 stops14h 51mKLM
mar. 10/2111:35 amOPO - HOU
2 stops17h 25mKLM
Deal found 9/14$856

Cheapflights Fare Finder

 
Customize your flight search to find flights from Galveston 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 septembre 15, 2025.
Use the filters below to find and compare flights from Galveston to Portugal that are best for you.

Fly from

Galveston

Fly to

Portugal

Route

Depart

Return

Price

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

mer. 11/19

12:15 pm-8:00 pm

2 stops25h 45m

Porto

mer. 11/26

8:20 am-7:50 pm

2 stops17h 30m

$640

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

sam. 11/15

6:00 am-9:00 am

2 stops21h 00m

Lisbon Humberto Delgado

mer. 11/26

5:30 am-11:46 pm

2 stops24h 16m

$641

HoustonFunchal

HOU - FNC

HOUFNC

Houston Hobby

lun. 10/27

6:44 pm-9:35 am

2 stops33h 51m

Funchal Madeira

mer. 11/12

10:25 am-9:45 am

2 stops29h 20m

$647

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

mer. 11/5

6:44 pm-5:30 pm

2 stops16h 46m

Lisbon Humberto Delgado

sam. 11/15

5:00 am-5:33 pm

2 stops18h 33m

$670

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

sam. 2/14

10:18 am-7:40 am

2 stops15h 22m

Porto

sam. 2/21

8:40 pm-8:39 am

2 stops17h 59m

$678

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

dim. 2/15

6:00 am-8:00 am

2 stops20h 00m

Lisbon Humberto Delgado

dim. 2/22

5:30 am-9:46 pm

2 stops22h 16m

$706

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

mar. 10/14

2:22 pm-3:35 pm

2 stops19h 13m

Porto

mar. 10/21

6:15 am-11:00 pm

2 stops22h 45m

$737

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

mer. 10/29

6:44 pm-3:25 pm

2 stops15h 41m

Porto

mer. 11/5

6:00 am-5:48 pm

2 stops17h 48m

$739

HoustonFunchal

HOU - FNC

HOUFNC

Houston Hobby

sam. 12/6

6:33 pm-9:35 am

2 stops33h 02m

Funchal Madeira

lun. 12/15

10:25 am-11:46 pm

2 stops19h 21m

$746

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

dim. 2/15

10:05 am-10:30 am

2 stops18h 25m

Porto

lun. 2/23

6:30 am-9:32 am

2 stops33h 02m

$751

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 41 results
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Best time to book a flight from Galveston to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from Galveston to Portugal (average of $612). Flying from Galveston to Portugal in June is currently the most expensive (average of $1,127). 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 G4L to PT?

Find hourly flight availability from Galveston 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 septembre 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Galveston to Portugal as you normally would.

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 septembre 15, 2025.
See what other customers who have flown with Delta, Air France, and United Airlines from Galveston to Portugal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.4
Good
1,469 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Galveston to Portugal. 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 Galveston to Portugal?

    There are many flights that can get you from Galveston to Portugal in 21h. Fly via British Airways, Delta, or KLM to get the fastest option. Airlines will cover a distance of 4777 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $453. Users have also found prices from $453 and $510 on Virgin Atlantic and KLM, respectively.

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

    While some choose either Houston Hobby - Funchal Madeira or Houston Hobby - Porto, Houston Hobby - Lisbon Humberto Delgado is the most popular route from Galveston to Portugal.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Galveston to Portugal (average of $612). Flying from Galveston to Portugal in June is currently the most expensive (average of $1,127). 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 Galveston 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 Galveston to Portugal

Discover the top 9 airlines that operate flights from Galveston 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 septembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$549Average$809FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$563Average$908FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$576Average$1,079FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$578Average$937FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$585Average$836FlexibilityNo cancel feeOn-time70%
DeltaCheapest$615Average$869FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$629Average$1,081FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$637Average$736FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$679Average$1,404FlexibilityNo cancel feeOn-time76%

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