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$303+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — OPO
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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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 February 14, 2026.

This Priceline deal was found by Cheapflights users on 2/13. 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 4/209:45 pm
DFW
-
OPO
1 stop16h 15m
Iberia
Thu 4/308:20 am
OPO
-
DFW
1 stop17h 50m
Iberia
Deal found 2/13$585
This Priceline deal was found by Cheapflights users on 2/10. 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.
Tue 4/148:55 pm
DFW
-
OPO
2 stops17h 05m
Iberia
Wed 4/2912:25 pm
OPO
-
DFW
1 stop13h 45m
Iberia
Deal found 2/10$588
This American Airlines deal was found by Cheapflights users on 2/13. 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 4/2012:31 pm
DFW
-
OPO
2 stops17h 14m
American Airlines
Thu 4/3012:25 pm
OPO
-
DFW
1 stop13h 45m
American Airlines
Deal found 2/13$589
This Delta deal was found by Cheapflights users on 2/10. 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 4/1411:47 am
DFW
-
OPO
2 stops21h 38m
Delta
Wed 4/295:00 am
OPO
-
DFW
2 stops24h 24m
Delta
Deal found 2/10$592
This Delta deal was found by Cheapflights users on 2/13. 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 4/2011:37 am
DFW
-
OPO
2 stops21h 48m
Delta
Thu 4/305:00 am
OPO
-
DFW
2 stops18h 48m
Delta
Deal found 2/13$593
This Iberia deal was found by Cheapflights users on 2/10. 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 4/123:10 pm
DFW
-
OPO
1 stop23h 10m
Multiple Airlines
Tue 4/288:20 am
OPO
-
DFW
2 stops18h 10m
Multiple Airlines
Deal found 2/10$595
This Delta deal was found by Cheapflights users on 2/10. 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 4/131:37 pm
DFW
-
OPO
2 stops19h 48m
Delta
Tue 4/286:15 am
OPO
-
DFW
2 stops23h 09m
Delta
Deal found 2/10$599
This American Airlines deal was found by Cheapflights users on 2/13. 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 4/208:49 am
DFW
-
OPO
2 stops16h 51m
American Airlines
Tue 4/288:20 am
OPO
-
DFW
2 stops18h 10m
American Airlines
Deal found 2/13$600
This KLM deal was found by Cheapflights users on 2/11. 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 3/231:00 pm
DFW
-
OPO
2 stops16h 30m
Multiple Airlines
Mon 3/304:20 pm
OPO
-
DFW
1 stop27h 15m
Multiple Airlines
Deal found 2/11$603
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Wed 10/147:15 am
DFW
-
OPO
2 stops17h 45m
United Airlines
Tue 10/2012:15 pm
OPO
-
DFW
2 stops33h 07m
United Airlines
Deal found 2/12$610
This Mytrip deal was found by Cheapflights users on 2/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:20 pm
DFW
-
OPO
2 stops17h 45m
Multiple Airlines
Tue 4/286:35 pm
OPO
-
DFW
3 stops32h 20m
Multiple Airlines
Deal found 2/13$612
This KLM deal was found by Cheapflights users on 2/10. 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 2/10$636

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 February 14, 2026.

Round-trip from

$585
(Priceline)

One-way from

$303
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$802
From Dallas to Porto
Search Deals
One-way flight from Dallas to Porto
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($230 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 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 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 February 14, 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

Sun 4/12

3:10 pm-8:20 pm

1 stop23h 10m

Porto

Tue 4/28

8:20 am-8:10 pm

1 stop17h 50m

$585

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 4/20

11:37 am-3:25 pm

2 stops21h 48m

Porto

Thu 4/30

5:00 am-5:48 pm

2 stops18h 48m

$593

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 4/20

12:20 pm-12:05 pm

2 stops17h 45m

Porto

Tue 4/28

6:35 pm-8:55 pm

3 stops32h 20m

$612

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 3/30

1:00 pm-3:25 pm

2 stops20h 25m

Porto

Thu 4/16

5:00 am-11:24 pm

2 stops24h 24m

$623

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/4

7:00 am-5:35 pm

3 stops28h 35m

Porto

Wed 3/11

6:05 am-10:05 pm

2 stops21h 00m

$623

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/18

8:00 am-10:30 am

2 stops21h 30m

Porto

Thu 4/9

5:00 am-11:59 pm

2 stops24h 59m

$623

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 3/30

11:44 am-10:40 am

2 stops16h 56m

Porto

Thu 4/16

5:55 am-1:35 pm

1 stop13h 40m

$627

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 4/6

6:17 pm-3:30 pm

2 stops15h 13m

Porto

Tue 4/21

4:25 pm-1:35 pm

1 stop27h 10m

$634

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Wed 3/18

12:12 pm-10:30 am

2 stops17h 18m

Porto

Thu 4/9

5:55 am-5:54 pm

2 stops17h 59m

$636

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Mon 3/23

12:12 pm-9:35 am

2 stops40h 23m

Porto

Mon 3/30

12:00 pm-10:45 pm

2 stops40h 45m

$668

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 29 results
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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 February 6, 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 February 14, 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
8,202 reviews

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.1

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
8,202 reviews
Delta
7.9
Good
8,202 reviews

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.1

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
9,292 reviews
Delta
7.9
Good
8,202 reviews

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.1

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
11,289 reviews
Delta
7.9
Good
8,202 reviews

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.1

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
3,115 reviews
Delta
7.9
Good
8,202 reviews

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.9

Boarding

8.1

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 17h 18m. Fly via Delta, KLM, or Scandinavian Airlines to get the fastest option. Airlines will cover a distance of 4682 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 32% 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

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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 February 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$546Average$847FlexibilityNo cancel feeOn-time71%
IberiaCheapest$565Average$872FlexibilityNo cancel feeOn-time77%
DeltaCheapest$569Average$1,096FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$701Average$1,106FlexibilityNo cancel feeOn-time69%

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