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$219+ Cheap flights from Texas 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — OPO
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find flight deals from Texas to Porto

Cheapest flights from Texas to Porto
Explore the most affordable flight options available from Texas to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

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.
Thu 12/116:05 pmAUS - OPO
1 stop13h 15mKLM
Thu 12/256:35 amOPO - AUS
1 stop15h 35mKLM
Deal found 11/2$480
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 12/18:00 amAUS - OPO
2 stops20h 30mDelta
Sun 12/711:15 amOPO - AUS
1 stop34h 55mDelta
Deal found 11/2$481
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 12/16:05 pmAUS - OPO
1 stop34h 25mDelta
Mon 12/86:30 amOPO - AUS
1 stop15h 40mDelta
Deal found 11/2$483
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 12/16:05 pmAUS - OPO
1 stop15h 20mDelta
Tue 12/911:15 amOPO - AUS
2 stops29h 11mDelta
Deal found 11/2$493
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:30 amAUS - OPO
2 stops21h 25mUnited Airlines
Mon 12/86:00 amOPO - AUS
3 stops36h 04mUnited Airlines
Deal found 11/2$498
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:10 pmIAH - OPO
2 stops18h 40mMultiple Airlines
Wed 12/2412:30 pmOPO - IAH
1 stop32h 05mMultiple Airlines
Deal found 11/1$569
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:10 pmAUS - OPO
1 stop13h 30mUnited Airlines
Sat 1/106:00 amOPO - AUS
2 stops35h 11mUnited Airlines
Deal found 11/2$598
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 12/34:05 pmIAH - OPO
1 stop12h 25mDelta
Sun 12/75:00 amOPO - IAH
1 stop14h 30mDelta
Deal found 11/2$626
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/304:18 pmAUS - OPO
2 stops40h 37mUnited Airlines
Sun 12/712:30 pmOPO - AUS
2 stops40h 14mUnited Airlines
Deal found 11/2$627
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:55 pmAUS - OPO
1 stop16h 40mBritish Airways
Tue 12/96:25 pmOPO - AUS
1 stop28h 25mBritish Airways
Deal found 11/2$655
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/119:05 pmIAH - OPO
1 stop30h 50mTurkish Airlines
Wed 11/1910:55 amOPO - IAH
1 stop38h 15mTurkish Airlines
Deal found 11/2$675
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:30 amAUS - OPO
2 stops18h 35mAir Canada
Sat 12/66:15 amOPO - AUS
2 stops45h 12mAir Canada
Deal found 11/2$679

Cheap flight deals from Texas to Porto

Keep the following information in mind while searching for Texas to Porto flight deals. Data was last updated November 3, 2025.

Round-trip from

$480
(KLM)

One-way from

$219
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$623
From Texas to Porto
Search Deals
One-way flight from Texas to Porto
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($266 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Texas 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 November 3, 2025.
Use the filters below to find and compare flights from Texas to Porto that are best for you.

Fly from

Texas

Fly to

Porto

Route

Depart

Return

Price

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 12/11

6:05 pm-1:20 pm

1 stop13h 15m

Porto

Thu 12/25

6:35 am-4:10 pm

1 stop15h 35m

$480

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Wed 2/4

11:45 am-10:30 am

2 stops16h 45m

Porto

Wed 2/11

11:15 am-4:10 pm

1 stop34h 55m

$481

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 2/2

6:40 am-10:30 am

2 stops21h 50m

Porto

Mon 2/9

6:30 am-4:10 pm

1 stop15h 40m

$481

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 2/3

8:00 am-10:30 am

2 stops20h 30m

Porto

Mon 2/9

6:30 am-4:10 pm

1 stop15h 40m

$481

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 2/5

6:05 pm-1:20 pm

1 stop13h 15m

Porto

Thu 2/12

6:35 am-4:10 pm

1 stop15h 35m

$482

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 2/19

11:30 am-12:50 pm

2 stops19h 20m

Porto

Fri 2/27

6:00 am-12:19 pm

2 stops36h 19m

$483

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Thu 2/5

6:05 pm-10:30 am

1 stop34h 25m

Porto

Fri 2/13

11:15 am-4:10 pm

1 stop34h 55m

$483

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 2/2

6:10 pm-10:30 am

1 stop34h 20m

Porto

Wed 2/11

11:15 am-4:10 pm

1 stop34h 55m

$483

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 2/2

11:30 am-12:05 pm

2 stops18h 35m

Porto

Fri 2/13

6:00 am-12:19 pm

2 stops36h 19m

$484

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 1/13

1:00 pm-12:50 pm

2 stops17h 50m

Porto

Sun 1/18

6:00 am-8:49 pm

2 stops20h 49m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 60 results
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Best time to book a flight from Texas to Porto

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

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

Currently, December is the cheapest month in which you can book a flight from Texas to Porto (average of $414). Flying from Texas to Porto in July is currently the most expensive (average of $809). 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 TX to OPO?

Find hourly flight availability from Texas 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 November 3, 2025.

It’s optimal to fly from Texas to Porto in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Texas to Porto?

Use this chart to determine the cheapest time to fly round-trip from Texas to Porto. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Texas to Porto flight should consider departing on Monday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Texas 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 Texas?

    Located just 6.8 mi from the city center, Porto (OPO) is the airport most travelers will use when flying to Porto from Texas.

  • How long is the flight from Texas to Porto?

    Airlines like KLM, Delta, and United Airlines fly from Texas to Porto in about 12h 55m. The time it takes to get you to your destination can typically vary by up to 3h 01m. There are 4726 mi between Texas and Porto. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $447 on KLM. Other airlines that offer cheap prices include United Airlines from $468 and Air France from $471 one-way.

  • What are the most popular routes from Texas to Porto?

    While some choose either Houston Hobby - Porto or Dallas Love Field - Porto, Dallas/Fort Worth - Porto is the most popular route from Texas to Porto.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Texas to Porto (average of $414). Flying from Texas to Porto in July is currently the most expensive (average of $809). 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 Porto?

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

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Alternative routes for Texas to Porto

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Top 6 airlines flying from Texas to Porto

Discover the top 6 airlines that operate flights from Texas 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$531Average$1,078FlexibilityNo cancel feeOn-time75%
DeltaCheapest$534Average$988FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$546Average$880FlexibilityNo cancel feeOn-time71%
IberiaCheapest$576Average$839FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$623Average$1,121FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$679Average$1,141FlexibilityNo cancel feeOn-time76%

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