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$490+ Cheap flights from Galveston, TX to Porto (OPO)

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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — OPO
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from Galveston to Porto

Keep the following information in mind while searching for Galveston to Porto flight deals. Data was last updated June 16, 2025.

Round-trip from

$828
(American Airlines)

One-way from

$490
(eDestinos)

Popular in

December

Cheapest in

November

Average price

$1,451
From Galveston to Porto
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One-way flight from Galveston to Porto
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Highest demand for flights based on searches. 3% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Galveston to Porto

Cheapest flights from Galveston to Porto
Explore the most affordable flight options available from Galveston to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This American Airlines deal was found by Cheapflights users on 6/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:44 pmHOU - OPO
2 stops15h 11mAmerican Airlines
Sat 10/1112:20 pmOPO - HOU
2 stops17h 24mAmerican Airlines
Deal found 6/14$828
This Travelocity deal was found by Cheapflights users on 6/14. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:41 pmHOU - OPO
2 stops19h 14mIberia
Sat 10/1112:20 pmOPO - HOU
2 stops17h 24mIberia
Deal found 6/14$888
This Delta deal was found by Cheapflights users on 6/16. 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 8/512:56 pmHOU - OPO
2 stops20h 39mDelta
Thu 8/216:30 amOPO - HOU
2 stops22h 01mDelta
Deal found 6/16$936
This Orbitz deal was found by Cheapflights users on 6/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/202:30 pmHOU - OPO
2 stops19h 25mMultiple Airlines
Sun 8/248:15 amOPO - HOU
2 stops35h 31mMultiple Airlines
Deal found 6/15$1,134
This KLM deal was found by Cheapflights users on 6/16. 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.
Tue 6/1712:55 pmHOU - OPO
2 stops15h 45mKLM
Tue 7/89:20 amOPO - HOU
2 stops17h 20mKLM
Deal found 6/16$1,922

Cheapflights Fare Finder

Customize your flight search to find flights from Galveston to Porto 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 June 16, 2025.
Use the filters below to find and compare flights from Galveston to Porto that are best for you.

Fly from

Galveston

Fly to

Porto

Route

Depart

Return

Price

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Mon 9/29

6:44 pm-3:55 pm

2 stops15h 11m

Porto

Sat 10/11

12:20 pm-11:44 pm

2 stops17h 24m

$828

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Thu 10/2

6:41 pm-7:55 pm

2 stops19h 14m

Porto

Sat 10/11

12:20 pm-11:44 pm

2 stops17h 24m

$888

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Tue 8/5

12:56 pm-3:35 pm

2 stops20h 39m

Porto

Thu 8/21

6:30 am-10:31 pm

2 stops22h 01m

$936

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 8/20

2:30 pm-3:55 pm

2 stops19h 25m

Porto

Sun 8/24

8:15 am-1:46 pm

2 stops35h 31m

$1,134

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Wed 8/13

1:05 pm-10:05 pm

2 stops27h 00m

$490

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 10/12

8:10 pm-3:55 pm

2 stops37h 45m

$536

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 8/10

6:30 pm-3:55 pm

2 stops15h 25m

$592

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 10/12

4:30 pm-3:55 pm

2 stops17h 25m

$596

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sun 10/12

1:00 pm-3:30 pm

2 stops20h 30m

$602

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Best time to book a flight from Galveston to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto 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 Porto

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

Currently, January is the cheapest month in which you can book a flight from Galveston to Porto (average of $523). Flying from Galveston to Porto in June is currently the most expensive (average of $1,040). 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 OPO?

Find hourly flight availability from Galveston to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 16, 2025.

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

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated June 16, 2025.
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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!
Iberia
7.0
Good
2,778 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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
6.6
Okay
7,019 reviews
Delta
8.0
Very good
7,963 reviews

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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 Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Galveston?

    Porto (OPO) is the airport you will fly into if you book a flight from Galveston to Porto. You should not have trouble finding flights to Porto from Galveston; the airport handles an average of 0 inbound flights from Galveston per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Porto airport from Galveston. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

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

    The cheapest airlines for a one-way flight from Galveston to Porto are British Airways ($536), Iberia ($592), and American Airlines ($596).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Galveston to Porto (average of $523). Flying from Galveston to Porto in June is currently the most expensive (average of $1,040). 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

Traveling to a place near Galveston?

Book flights to Galveston if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Top 4 airlines flying from Galveston to Porto

Discover the top 4 airlines that operate flights from Galveston to Porto. 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$494Average$954FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$629Average$1,140FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$677Average$1,042FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$679Average$1,404FlexibilityNo cancel feeOn-time76%

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