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$683+ 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — OPO
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 April 17, 2025.

Round-trip from

$817
(American Airlines)

One-way from

$683
(British Airways)

Popular in

December

Cheapest in

March

Average price

$991
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 ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($55 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 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 April 17, 2025.

This American Airlines deal was found by Cheapflights users on 4/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:19 amHOU - OPO
2 stops15h 21mAmerican Airlines
Mon 11/108:40 pmOPO - HOU
2 stops18h 46mAmerican Airlines
Deal found 4/16$697
This Iberia deal was found by Cheapflights users on 4/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:43 pmHOU - OPO
2 stops15h 12mIberia
Thu 10/1612:20 pmOPO - HOU
2 stops17h 24mIberia
Deal found 4/15$842
This Priceline deal was found by Cheapflights users on 4/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/296:41 pmHOU - OPO
2 stops19h 09mBritish Airways
Sat 10/1110:40 amOPO - HOU
2 stops19h 04mBritish Airways
Deal found 4/17$955
This Delta deal was found by Cheapflights users on 4/17. 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 7/184:20 pmHOU - OPO
2 stops17h 15mDelta
Thu 8/79:20 amOPO - HOU
2 stops18h 15mDelta
Deal found 4/17$1,280
This KLM deal was found by Cheapflights users on 4/16. 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.
Thu 5/812:52 pmHOU - OPO
2 stops15h 48mKLM
Tue 5/139:20 amOPO - HOU
2 stops17h 57mKLM
Deal found 4/16$1,298

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 April 17, 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

Tue 8/5

4:30 pm-3:55 pm

2 stops17h 25m

Porto

Thu 8/21

12:20 pm-11:42 pm

2 stops17h 22m

$817

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Tue 10/7

6:43 pm-3:55 pm

2 stops15h 12m

Porto

Thu 10/16

12:20 pm-11:44 pm

2 stops17h 24m

$842

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Mon 9/29

6:41 pm-7:50 pm

2 stops19h 09m

Porto

Sat 10/11

10:40 am-11:44 pm

2 stops19h 04m

$955

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Fri 7/18

4:20 pm-3:35 pm

2 stops17h 15m

Porto

Thu 8/7

9:20 am-9:35 pm

2 stops18h 15m

$1,280

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Thu 5/8

12:52 pm-10:40 am

2 stops15h 48m

Porto

Tue 5/13

9:20 am-9:17 pm

2 stops17h 57m

$1,298

HoustonPorto

HOU - OPO

HOUOPO

Houston Hobby

Sat 5/17

8:16 pm-8:35 pm

2 stops18h 19m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 $1,081). 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 April 17, 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 April 17, 2025.
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

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
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

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
1,329 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

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
7,917 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

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
2,676 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

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.
British Airways
6.6
Okay
6,767 reviews
Delta
8.0
Very good
7,917 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Comfort

7.9

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 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 3 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.

  • 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 $1,081). 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 3 airlines flying from Galveston to Porto

Discover the top 3 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$494Average$1,026FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$635Average$1,058FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$697Average$1,122FlexibilityNo cancel feeOn-time69%

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