HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$282+ Cheap flights from Dallas 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — OPO
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dallas 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 Dallas to Porto

Cheapest flights from Dallas to Porto
Explore the most affordable flight options available from Dallas to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This United Airlines deal was found by Cheapflights users on 1/19. 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 10/125:10 am
DFW
-
OPO
2 stops22h 35m
United Airlines
Tue 10/2012:15 pm
OPO
-
DFW
2 stops36h 41m
United Airlines
Deal found 1/19$541
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:45 pm
DFW
-
OPO
1 stop21h 05m
British Airways
Tue 5/198:20 am
OPO
-
DFW
1 stop17h 50m
British Airways
Deal found 1/20$552
This British Airways deal was found by Cheapflights users on 1/20. 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 5/47:40 pm
DFW
-
OPO
1 stop18h 10m
British Airways
Wed 5/2012:25 pm
OPO
-
DFW
1 stop13h 45m
British Airways
Deal found 1/20$553
This Iberia deal was found by Cheapflights users on 1/19. 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.
Wed 2/183:45 pm
DFW
-
OPO
1 stop19h 00m
Multiple Airlines
Thu 2/269:55 pm
OPO
-
DFW
1 stop23h 00m
Multiple Airlines
Deal found 1/19$554
This Cheapflightsfares deal was found by Cheapflights users on 1/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/302:56 pm
DFW
-
OPO
2 stops22h 54m
British Airways
Thu 4/168:20 am
OPO
-
DFW
1 stop17h 50m
British Airways
Deal found 1/19$556
This Air Canada deal was found by Cheapflights users on 1/19. 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.
Wed 3/1812:20 pm
DFW
-
OPO
2 stops19h 55m
Air Canada
Thu 4/96:20 am
OPO
-
DFW
2 stops21h 04m
Air Canada
Deal found 1/19$558
This United Airlines deal was found by Cheapflights users on 1/19. 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 2/2312:06 pm
DFW
-
OPO
2 stops15h 24m
United Airlines
Wed 3/46:00 am
OPO
-
DFW
2 stops20h 33m
United Airlines
Deal found 1/19$560
This Air Canada deal was found by Cheapflights users on 1/19. 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.
Mon 3/307:00 am
DFW
-
OPO
2 stops23h 05m
Multiple Airlines
Thu 4/166:00 am
OPO
-
DFW
2 stops38h 49m
Multiple Airlines
Deal found 1/19$562
This United Airlines deal was found by Cheapflights users on 1/20. 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 3/17:10 am
DFW
-
OPO
2 stops20h 20m
United Airlines
Tue 3/176:00 am
OPO
-
DFW
2 stops44h 32m
United Airlines
Deal found 1/20$564
This Iberia deal was found by Cheapflights users on 1/19. 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.
Sun 4/264:55 pm
DFW
-
OPO
1 stop12h 50m
Iberia
Fri 5/812:25 pm
OPO
-
DFW
1 stop13h 45m
Iberia
Deal found 1/19$565
This KLM deal was found by Cheapflights users on 1/20. 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 3/1812:12 pm
DAL
-
OPO
2 stops17h 18m
KLM
Thu 4/95:55 am
OPO
-
DAL
2 stops17h 59m
KLM
Deal found 1/20$635
This Air France deal was found by Cheapflights users on 1/21. 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.
Wed 3/1812:12 pm
DAL
-
OPO
2 stops17h 18m
Air France
Thu 4/95:55 am
OPO
-
DAL
2 stops17h 59m
Air France
Deal found 1/21$664

Find flight deals from Dallas to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Round-trip from

$552
(Cheapflightsfares)

One-way from

$282
(oojo)

Popular in

June

Cheapest in

December

Average price

$704
From Dallas to Porto
Search Deals
One-way flight from Dallas to Porto
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($204 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas 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 January 21, 2026.
Use the filters below to find and compare flights from Dallas to Porto that are best for you.

Fly from

Dallas

Fly to

Porto

Route

Depart

Return

Price

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 5/4

12:31 pm-7:50 pm

2 stops25h 19m

Porto

Wed 5/20

8:20 am-8:10 pm

1 stop17h 50m

$557

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/18

12:20 pm-1:15 pm

2 stops19h 55m

Porto

Thu 4/9

6:20 am-2:49 pm

2 stops38h 29m

$558

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 3/17

5:20 pm-9:30 am

1 stop11h 10m

Porto

Tue 3/24

6:00 am-8:34 pm

2 stops43h 34m

$561

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/1

7:10 am-9:30 am

2 stops20h 20m

Porto

Tue 3/17

6:00 am-9:32 pm

2 stops44h 32m

$564

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 4/26

4:55 pm-11:45 am

1 stop12h 50m

Porto

Fri 5/8

12:25 pm-8:10 pm

1 stop13h 45m

$565

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/1

7:00 am-6:30 pm

2 stops29h 30m

Porto

Thu 3/12

6:00 am-9:32 pm

2 stops44h 32m

$566

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 5/5

11:11 am-7:30 pm

2 stops26h 19m

Porto

Tue 5/12

8:20 am-8:30 pm

2 stops18h 10m

$566

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 3/23

5:20 pm-9:30 am

1 stop11h 10m

Porto

Mon 3/30

12:00 pm-2:15 pm

1 stop32h 15m

$566

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 5/4

12:31 pm-7:50 pm

2 stops25h 19m

Porto

Tue 5/19

8:20 am-8:30 pm

2 stops18h 10m

$567

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 2/10

1:55 pm-7:40 am

1 stop11h 45m

Porto

Thu 2/19

8:40 pm-4:40 pm

1 stop26h 00m

$575

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Dallas to Porto

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

How far ahead should I book a flight from Dallas to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Dallas to Porto. Price data was last updated on January 16, 2026.

Booking 45 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dallas to Porto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from Dallas to Porto (average of $414). Flying from Dallas to Porto in June is currently the most expensive (average of $931). 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.

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 January 21, 2026.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Dallas to Porto by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,089 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,191 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,174 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Iberia
7.0
Good
3,094 reviews
Delta
7.9
Good
8,089 reviews

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

    If you book a flight to Porto from Dallas, you will be flying to Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto. There are 0 flights from Dallas to Porto per day from 4 different airlines.

  • How long is the flight from Dallas to Porto?

    There are many flights that can get you from Dallas to Porto in 11h 10m. Fly via British Airways, United Airlines, or KLM to get the fastest option. Airlines will cover a distance of 4688 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Dallas to Porto round-trip?

    Our cheapest airline available from Dallas to Porto is American Airlines. Our recent data shows that you can find tickets from as low as $546 on this airline. Additional options worth looking into are Iberia and Delta, starting at $565 and $569 round-trip. American Airlines is 33% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Dallas to Porto (average of $414). Flying from Dallas to Porto in June is currently the most expensive (average of $931). 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.

Top 4 airlines flying from Dallas to Porto

Discover the top 4 airlines that operate flights from Dallas 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$546Average$847FlexibilityNo cancel feeOn-time71%
IberiaCheapest$565Average$844FlexibilityNo cancel feeOn-time77%
DeltaCheapest$569Average$1,096FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$693Average$1,111FlexibilityNo cancel feeOn-time69%

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.