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$477+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — LIS
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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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 November 3, 2025.

This Delta deal was found by Cheapflights users on 11/2. 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.
Mon 12/16:48 pmHOU - LIS
2 stops16h 42mDelta
Wed 12/105:30 amLIS - HOU
2 stops18h 22mDelta
Deal found 11/2$605
This Delta deal was found by Cheapflights users on 11/2. 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 12/210:39 amHOU - LIS
2 stops15h 21mDelta
Wed 12/105:30 amLIS - HOU
2 stops18h 22mDelta
Deal found 11/2$606
This Delta deal was found by Cheapflights users on 11/2. 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 12/26:00 amHOU - LIS
2 stops21h 00mDelta
Fri 12/1210:00 amLIS - HOU
2 stops18h 48mDelta
Deal found 11/2$609
This Virgin Atlantic deal was found by Cheapflights users on 11/1. 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.
Mon 12/810:39 amHOU - LIS
2 stops15h 21mVirgin Atlantic
Wed 12/2411:15 amLIS - HOU
2 stops37h 59mVirgin Atlantic
Deal found 11/1$620
This Delta deal was found by Cheapflights users on 11/1. 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.
Tue 12/26:00 amHOU - LIS
2 stops21h 00mDelta
Sun 12/75:30 amLIS - HOU
2 stops23h 18mDelta
Deal found 11/1$656
This KLM deal was found by Cheapflights users on 11/2. 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.
Sat 12/610:39 amHOU - LIS
2 stops15h 21mKLM
Sat 12/1311:15 amLIS - HOU
2 stops17h 18mKLM
Deal found 11/2$709
This Delta deal was found by Cheapflights users on 11/2. 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 11/1110:40 amHOU - OPO
2 stops17h 50mDelta
Wed 11/196:00 amOPO - HOU
2 stops23h 07mDelta
Deal found 11/2$741
This KLM deal was found by Cheapflights users on 11/2. 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 11/126:48 pmHOU - OPO
2 stops14h 37mKLM
Wed 11/196:00 amOPO - HOU
2 stops23h 07mKLM
Deal found 11/2$746
This Delta deal was found by Cheapflights users on 11/1. 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.
Tue 11/116:48 pmHOU - LIS
2 stops16h 42mDelta
Fri 11/215:00 amLIS - HOU
2 stops24h 07mDelta
Deal found 11/1$749
This Delta deal was found by Cheapflights users on 11/2. 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.
Wed 11/56:00 amHOU - LIS
2 stops20h 40mDelta
Wed 11/125:00 amLIS - HOU
2 stops24h 07mDelta
Deal found 11/2$750
This Delta deal was found by Cheapflights users on 11/2. 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 11/1810:40 amHOU - LIS
2 stops16h 20mDelta
Tue 11/255:30 amLIS - HOU
2 stops23h 37mDelta
Deal found 11/2$755
This KLM deal was found by Cheapflights users on 11/2. 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.
Sat 12/66:40 pmHOU - FNC
2 stops32h 55mKLM
Mon 12/1510:25 amFNC - HOU
2 stops29h 09mKLM
Deal found 11/2$755

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 November 3, 2025.

Round-trip from

$581
(Delta)

One-way from

$477
(KLM)

Popular in

June

Cheapest in

February

Average price

$886
From Galveston to Portugal
Search Deals
One-way flight from Galveston to Portugal
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($197 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 3, 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 3/4

1:06 pm-10:30 am

2 stops15h 24m

Porto

Thu 3/12

6:35 am-9:46 pm

2 stops20h 11m

$591

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Tue 2/10

5:35 am-10:30 am

2 stops22h 55m

Porto

Wed 2/18

11:15 am-10:05 am

2 stops28h 50m

$591

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Wed 2/25

1:06 pm-5:30 pm

2 stops22h 24m

Lisbon Humberto Delgado

Thu 3/5

5:00 am-4:30 pm

2 stops17h 30m

$599

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Tue 12/2

6:00 am-9:00 am

2 stops21h 00m

Lisbon Humberto Delgado

Thu 12/11

5:30 am-10:48 pm

2 stops23h 18m

$605

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Wed 2/18

12:16 pm-9:05 am

2 stops14h 49m

Lisbon Humberto Delgado

Thu 2/26

10:55 am-11:55 pm

2 stops19h 00m

$609

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 3/4

5:25 am-10:30 am

2 stops23h 05m

Porto

Thu 3/12

6:35 am-9:46 pm

2 stops20h 11m

$641

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Mon 2/9

5:04 pm-5:30 pm

2 stops18h 26m

Lisbon Humberto Delgado

Mon 2/23

5:30 am-9:30 pm

2 stops22h 00m

$655

HoustonLisbon

HOU - LIS

HOULIS

Houston Hobby

Tue 12/2

6:00 am-9:00 am

2 stops21h 00m

Lisbon Humberto Delgado

Sun 12/7

5:30 am-10:48 pm

2 stops23h 18m

$656

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Thu 2/19

12:16 pm-11:45 am

2 stops17h 29m

Porto

Fri 2/27

8:20 am-7:54 pm

2 stops17h 34m

$658

HoustonFunchal

HOU - FNC

HOUFNC

Houston Hobby

Sat 12/6

6:40 pm-9:35 am

2 stops32h 55m

Funchal Madeira

Mon 12/15

10:25 am-9:34 am

2 stops29h 09m

$755

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 39 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, February is the cheapest month in which you can book a flight from Galveston to Portugal (average of $512). Flying from Galveston to Portugal in June is currently the most expensive (average of $824). 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 November 3, 2025.

It’s optimal to fly from Galveston to Portugal in the evening. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Galveston to Portugal?

Use this chart to determine the cheapest time to fly round-trip from Galveston to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Galveston to Portugal flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 3, 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
7.9
Good
8,001 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Delta
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Air France
7.4
Good
1,482 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
United Airlines
7.4
Good
8,997 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Air Canada
7.1
Good
10,393 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
British Airways
6.7
Okay
7,494 reviews
Delta
7.9
Good
8,001 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.

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 14h 49m. Fly via Delta, American Airlines, or Iberia 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 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, February is the cheapest month in which you can book a flight from Galveston to Portugal (average of $512). Flying from Galveston to Portugal in June is currently the most expensive (average of $824). 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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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$517Average$869FlexibilityNo cancel feeOn-time71%
KLMCheapest$536Average$1,072FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$549Average$809FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$563Average$911FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$570Average$1,008FlexibilityNo cancel feeOn-time69%
DeltaCheapest$595Average$867FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$601Average$1,034FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$628Average$737FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$679Average$1,336FlexibilityNo cancel feeOn-time76%

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