HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$583+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Galveston to Portugal with Cheapflights

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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 Galveston to Portugal

Keep the following information in mind while searching for Galveston to Portugal flight deals. Data was last updated May 1, 2025.

Round-trip from

$767
(Iberia)

One-way from

$583
(Delta)

Popular in

June

Cheapest in

February

Average price

$1,127
From Galveston to Portugal
Search Deals
One-way flight from Galveston to Portugal
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($213 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 May 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
Tue 11/1810:19 amHOU - OPO
2 stops15h 21mIberia
Thu 11/278:20 amOPO - HOU
2 stops17h 46mIberia
Deal found 4/30$763
This Delta deal was found by Cheapflights users on 4/30. 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.
Tue 8/512:50 pmHOU - OPO
2 stops20h 40mDelta
Thu 8/216:30 amOPO - HOU
2 stops21h 05mDelta
Deal found 4/30$804
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 10/74:30 pmHOU - OPO
2 stops17h 25mAmerican Airlines
Thu 10/1612:20 pmOPO - HOU
2 stops17h 24mAmerican Airlines
Deal found 4/30$817
This Iberia deal was found by Cheapflights users on 4/30. 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.
Sun 9/286:41 pmHOU - LIS
2 stops15h 24mIberia
Mon 10/1312:30 pmLIS - HOU
2 stops17h 14mIberia
Deal found 4/30$885
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 7/2210:13 amHOU - LIS
2 stops16h 52mAmerican Airlines
Thu 8/711:05 amLIS - HOU
2 stops17h 07mAmerican Airlines
Deal found 4/30$933
This Delta deal was found by Cheapflights users on 4/29. 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.
Tue 7/1510:02 amHOU - LIS
2 stops18h 43mDelta
Tue 8/510:00 amLIS - HOU
2 stops29h 24mDelta
Deal found 4/29$978
This British Airways deal was found by Cheapflights users on 4/30. 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.
Wed 9/106:41 pmHOU - LIS
2 stops15h 24mBritish Airways
Sun 9/2112:30 pmLIS - HOU
2 stops17h 17mBritish Airways
Deal found 4/30$995
This Virgin Atlantic deal was found by Cheapflights users on 4/30. 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.
Wed 6/46:00 amHOU - LIS
2 stops20h 00mVirgin Atlantic
Wed 6/1110:00 amLIS - HOU
2 stops16h 44mVirgin Atlantic
Deal found 4/30$1,238
This British Airways deal was found by Cheapflights users on 4/30. 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.
Sat 5/176:31 pmHOU - LIS
2 stops17h 34mMultiple Airlines
Wed 5/289:00 amLIS - HOU
2 stops16h 44mMultiple Airlines
Deal found 4/30$1,511
This KLM deal was found by Cheapflights users on 4/30. 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 11/191:00 pmHOU - OPO
2 stops15h 30mKLM
Mon 12/15:00 amOPO - HOU
2 stops18h 47mKLM
Deal found 4/30$1,830
This British Airways deal was found by Cheapflights users on 4/30. 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.
Thu 8/72:30 pmHOU - OPO
2 stops15h 10mMultiple Airlines
Fri 8/158:15 amOPO - HOU
2 stops17h 40mMultiple Airlines
Deal found 4/30$5,677

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 May 1, 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

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Tue 7/22

10:13 am-9:05 am

2 stops16h 52m

Lisbon Humberto Delgado

Thu 8/7

11:05 am-10:12 pm

2 stops17h 07m

$933

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Tue 7/15

6:00 am-10:45 am

2 stops22h 45m

Lisbon Humberto Delgado

Thu 8/7

10:00 am-10:21 pm

2 stops18h 21m

$978

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Wed 7/9

6:30 pm-4:05 pm

2 stops15h 35m

Lisbon Humberto Delgado

Wed 7/23

7:20 am-7:53 pm

2 stops18h 33m

$1,014

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Mon 6/9

6:41 pm-5:55 pm

2 stops17h 14m

Porto

Tue 6/24

11:25 am-9:15 am

2 stops27h 50m

$1,205

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Wed 6/4

6:00 am-8:00 am

2 stops20h 00m

Lisbon Humberto Delgado

Wed 6/11

10:00 am-8:44 pm

2 stops16h 44m

$1,238

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Thu 6/5

6:30 pm-3:55 pm

2 stops15h 25m

Porto

Thu 6/12

12:20 pm-11:48 pm

2 stops17h 28m

$1,257

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Sat 7/19

2:29 pm-6:25 pm

2 stops21h 56m

Lisbon Humberto Delgado

Sun 8/10

8:45 pm-8:03 pm

2 stops29h 18m

$1,303

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Sat 5/17

6:31 pm-6:05 pm

2 stops17h 34m

Lisbon Humberto Delgado

Wed 5/28

9:00 am-7:44 pm

2 stops16h 44m

$1,511

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Fri 5/23

6:31 pm-3:55 pm

2 stops15h 24m

Porto

Fri 5/30

8:15 am-11:58 pm

2 stops21h 43m

$2,032

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Tue 7/22

10:02 am-8:00 am

2 stops15h 58m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 17 results
1
2

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 $1,178). 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 May 1, 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.

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 May 1, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Virgin Atlantic from Galveston to Portugal to help guide your decision. 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
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
643 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
2,700 reviews
Delta
8.0
Very good
7,934 reviews

Overall

8.0

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

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 Galveston 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 Galveston to Portugal one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $583. Users have also found prices from $758 and $808 on American Airlines and Virgin Atlantic, respectively.

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

    While some choose either Houston Hobby - Porto or Houston Hobby - Funchal Madeira, 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 $1,178). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Galveston to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Heathrow flights
Dallas/Fort Worth to Charles de Gaulle flights
Hobby to Heathrow flights
Dallas/Fort Worth to Leonardo da Vinci/Fiumicino flights
Dallas/Fort Worth to Frankfurt flights
Dallas/Fort Worth to Istanbul flights
Dallas/Fort Worth to Barcelona-El Prat flights
George Bush Intcntl to Heathrow flights
Dallas/Fort Worth to Madrid flights
Austin to Heathrow flights
Dallas/Fort Worth to Dublin flights
Dallas/Fort Worth to Gatwick flights
Hobby to Istanbul flights
Hobby to Charles de Gaulle flights
Dallas/Fort Worth to Orly flights
George Bush Intcntl to Istanbul flights
Dallas/Fort Worth to Athens flights
Love Field to Heathrow flights
George Bush Intcntl to Charles de Gaulle flights
Dallas/Fort Worth to Lisbon flights
Hobby to Madrid flights
Hobby to Leonardo da Vinci/Fiumicino flights
Hobby to Gatwick flights
Hobby to Frankfurt flights
Love Field to Charles de Gaulle flights
Dallas/Fort Worth to London City flights
Dallas/Fort Worth to Amsterdam flights
Hobby to London City flights
George Bush Intcntl to Gatwick flights
George Bush Intcntl to Madrid flights
Hobby to Athens flights
Dallas/Fort Worth to Sabiha Gokcen flights
Dallas/Fort Worth to Malpensa flights
George Bush Intcntl to Frankfurt flights
Dallas/Fort Worth to Vicenza flights
George Bush Intcntl to London City flights
Love Field to Frankfurt flights
Love Field to Leonardo da Vinci/Fiumicino flights
Austin to Gatwick flights
Hobby to Orly flights
Dallas/Fort Worth to Keflavik Intl flights
George Bush Intcntl to Leonardo da Vinci/Fiumicino flights
Hobby to Barcelona-El Prat flights
Hobby to Lisbon flights
George Bush Intcntl to Athens flights
Love Field to Athens flights
Hobby to Sabiha Gokcen flights
Hobby to Amsterdam flights
Austin to Leonardo da Vinci/Fiumicino flights
Love Field to Istanbul flights

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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$494Average$933FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$549Average$867FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$563Average$903FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$585Average$843FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$589Average$1,064FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$595Average$1,042FlexibilityNo cancel feeOn-time71%
KLMCheapest$629Average$1,035FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$649Average$718FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$679Average$1,404FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.