HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$328+ 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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — OPO
Mar 4 — Mar 111
Wed 3/4
Wed 3/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Texas to Porto with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 February 2, 2026.

This United Airlines deal was found by Cheapflights users on 1/31. 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 3/27:15 am
AUS
-
OPO
2 stops20h 15m
United Airlines
Wed 3/186:00 am
OPO
-
AUS
2 stops22h 54m
United Airlines
Deal found 1/31$477
This United Airlines deal was found by Cheapflights users on 1/31. 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 4/215:30 am
AUS
-
OPO
2 stops22h 15m
United Airlines
Thu 5/76:00 am
OPO
-
AUS
2 stops35h 25m
United Airlines
Deal found 1/31$493
This KAYAK deal was found by Cheapflights users on 2/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:30 pm
AUS
-
OPO
1 stop15h 20m
British Airways
Wed 5/68:20 am
OPO
-
AUS
2 stops20h 30m
British Airways
Deal found 2/1$518
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/115:30 pm
IAH
-
OPO
1 stop16h 55m
Lufthansa
Tue 3/174:15 pm
OPO
-
IAH
1 stop27h 55m
Lufthansa
Deal found 2/1$540
This KLM deal was found by Cheapflights users on 1/30. 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.
Mon 4/133:50 pm
IAH
-
OPO
1 stop17h 35m
KLM
Mon 4/2711:25 am
OPO
-
IAH
1 stop31h 50m
KLM
Deal found 1/30$551
This Air France deal was found by Cheapflights users on 2/1. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:05 pm
IAH
-
OPO
1 stop12h 25m
Multiple Airlines
Mon 3/911:15 am
OPO
-
IAH
1 stop32h 15m
Multiple Airlines
Deal found 2/1$552
This KLM deal was found by Cheapflights users on 2/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/114:30 pm
IAH
-
OPO
1 stop17h 55m
KLM
Tue 3/179:55 am
OPO
-
IAH
2 stops18h 04m
KLM
Deal found 2/1$568
This United Airlines deal was found by Cheapflights users on 1/31. 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 4/219:50 am
AUS
-
OPO
2 stops17h 55m
United Airlines
Thu 5/216:00 am
OPO
-
AUS
2 stops22h 40m
United Airlines
Deal found 1/31$571
This Delta deal was found by Cheapflights users on 1/31. 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 10/281:05 pm
AUS
-
OPO
2 stops21h 20m
Delta
Mon 11/95:00 am
OPO
-
AUS
1 stop17h 10m
Delta
Deal found 1/31$575
This Iberia deal was found by Cheapflights users on 1/31. 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 4/215:55 pm
AUS
-
OPO
1 stop19h 35m
Multiple Airlines
Thu 5/218:20 am
OPO
-
AUS
2 stops19h 19m
Multiple Airlines
Deal found 1/31$579
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Mon 3/26:31 am
IAH
-
OPO
2 stops19h 09m
American Airlines
Mon 3/98:40 pm
OPO
-
IAH
2 stops19h 49m
American Airlines
Deal found 2/1$585
This American Airlines deal was found by Cheapflights users on 1/31. 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 4/213:44 pm
AUS
-
OPO
2 stops18h 16m
American Airlines
Thu 5/2112:25 pm
OPO
-
AUS
2 stops16h 13m
American Airlines
Deal found 1/31$592

Find flight deals from Texas to Porto

Keep the following information in mind while searching for Texas to Porto flight deals. Data was last updated February 2, 2026.

Round-trip from

$477
(United Airlines)

One-way from

$328
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$984
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 ($239 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 2, 2026.
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

Mon 3/2

7:15 am-9:30 am

2 stops20h 15m

Porto

Wed 3/18

6:00 am-11:54 pm

2 stops22h 54m

$477

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 4/20

7:15 am-9:45 am

2 stops20h 30m

Porto

Wed 5/6

6:00 am-8:39 am

2 stops32h 39m

$493

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

5:30 am-9:45 am

2 stops22h 15m

Porto

Thu 5/7

6:00 am-11:25 am

2 stops35h 25m

$493

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Mon 4/20

10:30 pm-7:50 pm

1 stop15h 20m

Porto

Wed 5/6

8:20 am-10:50 pm

2 stops20h 30m

$518

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Mon 4/13

3:50 pm-3:25 pm

1 stop17h 35m

Porto

Mon 4/27

11:25 am-1:15 pm

1 stop31h 50m

$551

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Wed 3/11

4:30 pm-3:25 pm

1 stop17h 55m

Porto

Tue 3/17

9:55 am-10:59 pm

2 stops18h 04m

$568

AustinPorto

AUS - OPO

AUSOPO

Austin Bergstrom

Tue 4/21

9:50 am-9:45 am

2 stops17h 55m

Porto

Thu 5/21

6:00 am-10:40 pm

2 stops22h 40m

$571

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 3/10

10:49 am-9:30 am

2 stops17h 41m

Porto

Tue 3/17

6:00 am-11:15 pm

2 stops22h 15m

$592

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 4/7

2:20 pm-7:55 am

2 stops35h 35m

Porto

Wed 4/15

6:00 am-9:31 pm

2 stops21h 31m

$595

HoustonPorto

IAH - OPO

IAHOPO

Houston George Bush Intcntl

Tue 3/10

9:45 am-9:30 am

2 stops18h 45m

Porto

Thu 3/26

6:00 am-7:15 pm

1 stop18h 15m

$604

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 60 results
1
2
3
...
6

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.

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 United Airlines, KLM, and Delta fly from Texas to Porto in about 17h 35m. The time it takes to get you to your destination can typically vary by up to 3h 55m. 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 $393 on United Airlines. Other airlines that offer cheap prices include Delta from $411 and Iberia from $483 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
Vila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Texas to Porto

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Lisbon flights
Newark to Lisbon flights
Boston to Lisbon flights
Dulles Intl to Lisbon flights
LaGuardia to Lisbon flights
Newark to Porto flights
O'Hare Intl to Lisbon flights
San Francisco to Lisbon flights
John F Kennedy Intl to Porto flights
Boston to Ponta Delgada flights
Miami to Lisbon flights
Baltimore to Lisbon flights
Reagan-National to Lisbon flights
Dallas/Fort Worth to Lisbon flights
Los Angeles to Lisbon flights
Boston to Porto flights
Philadelphia to Lisbon flights
LaGuardia to Porto flights
Newark to Ponta Delgada flights
Seattle to Lisbon flights
Atlanta to Lisbon flights
Denver to Lisbon flights
John F Kennedy Intl to Ponta Delgada flights
Love Field to Lisbon flights
Minneapolis to Lisbon flights
Sky Harbor Intl to Lisbon flights
Midway to Lisbon flights
Dulles Intl to Porto flights
Santa Ana to Lisbon flights
Charlotte to Lisbon flights
Reagan-National to Porto flights
Ontario to Lisbon flights
Hobby to Lisbon flights
Raleigh to Lisbon flights
Orlando to Lisbon flights
Fort Lauderdale to Lisbon flights
San Jose to Lisbon flights
Portland to Lisbon flights
Baltimore to Porto flights
LaGuardia to Ponta Delgada flights
Austin to Lisbon flights
Detroit to Lisbon flights
John F Kennedy Intl to Funchal flights
Newark to Funchal flights
Cleveland to Lisbon flights
O'Hare Intl to Porto flights
Tampa to Lisbon flights
Seattle to Porto flights
San Francisco to Porto flights
Newark to Faro flights

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 February 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$476Average$854FlexibilityNo cancel feeOn-time75%
DeltaCheapest$541Average$949FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$546Average$876FlexibilityNo cancel feeOn-time71%
IberiaCheapest$565Average$841FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$623Average$1,099FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$668Average$1,067FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2026 Cheapflights