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$589+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 April 2, 2025.

Round-trip from

$715
(British Airways)

One-way from

$589
(Delta)

Popular in

May

Cheapest in

February

Average price

$797
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. 9% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 2, 2025.

This Delta deal was found by Cheapflights users on 4/1. 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 11/141:00 pmHOU - LIS
2 stops20h 10mDelta
Tue 11/185:00 amLIS - HOU
2 stops22h 40mDelta
Deal found 4/1$714
This American Airlines deal was found by Cheapflights users on 4/1. 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 8/56:30 pmHOU - OPO
2 stops15h 25mAmerican Airlines
Thu 8/2112:20 pmOPO - HOU
2 stops17h 22mAmerican Airlines
Deal found 4/1$715
This Gotogate deal was found by Cheapflights users on 4/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/306:31 pmHOU - OPO
2 stops18h 09mBritish Airways
Wed 5/78:15 amOPO - HOU
2 stops21h 43mBritish Airways
Deal found 4/1$740
This American Airlines deal was found by Cheapflights users on 4/1. 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 11/2512:25 pmHOU - LIS
2 stops14h 50mAmerican Airlines
Tue 12/211:10 amLIS - HOU
2 stops18h 35mAmerican Airlines
Deal found 4/1$744
This Cheapflightsfares deal was found by Cheapflights users on 4/1. 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.
Fri 11/76:19 pmHOU - LIS
2 stops17h 36mBritish Airways
Wed 11/126:35 pmLIS - HOU
2 stops27h 20mBritish Airways
Deal found 4/1$864
This Iberia deal was found by Cheapflights users on 4/1. 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.
Wed 8/136:39 pmHOU - LIS
2 stops15h 26mIberia
Wed 8/2012:30 pmLIS - HOU
2 stops17h 12mIberia
Deal found 4/1$873
This Delta deal was found by Cheapflights users on 4/1. 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 5/106:42 pmHOU - OPO
2 stops16h 58mDelta
Wed 5/216:15 amOPO - HOU
2 stops21h 02mDelta
Deal found 4/1$891
This Aeromexico deal was found by Cheapflights users on 4/1. 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.
Wed 5/710:22 amHOU - LIS
2 stops30h 03mAir France
Sat 5/175:40 amLIS - HOU
2 stops21h 37mAir France
Deal found 4/1$952
This Virgin Atlantic deal was found by Cheapflights users on 4/1. 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.
Tue 4/156:00 amHOU - LIS
2 stops20h 00mVirgin Atlantic
Tue 4/2212:45 pmLIS - HOU
2 stops16h 23mVirgin Atlantic
Deal found 4/1$1,113
This Iberia deal was found by Cheapflights users on 4/1. 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.
Mon 10/272:35 pmHOU - OPO
2 stops16h 10mIberia
Sun 11/98:20 amOPO - HOU
2 stops21h 25mIberia
Deal found 4/1$1,201
This British Airways deal was found by Cheapflights users on 4/1. 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.
Tue 12/94:13 pmHOU - LIS
2 stops16h 32mMultiple Airlines
Fri 12/128:20 amLIS - HOU
2 stops17h 44mMultiple Airlines
Deal found 4/1$1,314
This Expedia deal was found by Cheapflights users on 4/1. 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.
Tue 6/36:31 pmHOU - OPO
2 stops19h 24mMultiple Airlines
Fri 6/612:20 pmOPO - HOU
2 stops17h 28mMultiple Airlines
Deal found 4/1$1,694

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 April 2, 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

Wed 4/30

6:31 pm-6:40 pm

2 stops18h 09m

Porto

Wed 5/7

8:15 am-11:58 pm

2 stops21h 43m

$740

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Tue 5/6

2:45 pm-5:50 pm

2 stops21h 05m

Lisbon Humberto Delgado

Tue 5/20

5:00 am-9:17 pm

2 stops22h 17m

$834

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Wed 4/23

2:10 pm-3:40 pm

2 stops19h 30m

Lisbon Humberto Delgado

Thu 5/1

6:40 pm-6:01 pm

2 stops29h 21m

$870

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sat 5/10

6:42 pm-5:40 pm

2 stops16h 58m

Porto

Wed 5/21

6:15 am-9:17 pm

2 stops21h 02m

$891

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Wed 5/7

10:22 am-10:25 pm

2 stops30h 03m

Lisbon Humberto Delgado

Sat 5/17

5:40 am-9:17 pm

2 stops21h 37m

$952

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Tue 4/15

6:00 am-8:00 am

2 stops20h 00m

Lisbon Humberto Delgado

Tue 4/22

12:45 pm-11:08 pm

2 stops16h 23m

$1,113

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Tue 6/10

2:30 pm-8:05 pm

2 stops23h 35m

Lisbon Humberto Delgado

Sun 7/20

12:30 pm-11:49 pm

2 stops17h 19m

$1,566

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 6/1

6:31 pm-3:55 pm

2 stops15h 24m

Porto

Tue 6/10

12:20 pm-11:48 pm

2 stops17h 28m

$1,652

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Tue 6/3

6:31 pm-7:55 pm

2 stops19h 24m

Porto

Fri 6/6

12:20 pm-11:48 pm

2 stops17h 28m

$1,694

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 6/1

6:31 pm-3:55 pm

2 stops15h 24m

Porto

Mon 6/9

8:35 pm-11:48 pm

2 stops33h 13m

$1,720

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 24 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 $1,203). 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 April 2, 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 April 2, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Air France 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
7,898 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
7,898 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
1,323 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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.
Air France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
637 reviews
Delta
8.0
Very good
7,898 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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
7,898 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Overall

8.0

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 $589. Users have also found prices from $612 and $633 on British Airways and American Airlines, 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 $1,203). 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 April 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$494Average$929FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$549Average$863FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$563Average$906FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$565Average$1,521FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$586Average$844FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$590Average$1,205FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$595Average$1,042FlexibilityNo cancel feeOn-time71%
KLMCheapest$635Average$1,056FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$649Average$713FlexibilityNo cancel feeOn-time77%

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