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$394+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — OPO
Mar 9 — Mar 161
Mon 3/9
Mon 3/16
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 7, 2026.

This Expedia deal was found by Cheapflights users on 2/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:45 pm
DFW
-
OPO
1 stop16h 15m
Iberia
Thu 5/78:20 am
OPO
-
DFW
1 stop17h 50m
Iberia
Deal found 2/5$585
This American Airlines deal was found by Cheapflights users on 2/5. 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 4/288:49 am
DFW
-
OPO
2 stops16h 51m
American Airlines
Thu 5/78:20 am
OPO
-
DFW
1 stop17h 50m
American Airlines
Deal found 2/5$589
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/101:05 pm
DFW
-
OPO
2 stops15h 25m
United Airlines
Tue 3/176:00 am
OPO
-
DFW
2 stops22h 15m
United Airlines
Deal found 2/2$592
This American Airlines deal was found by Cheapflights users on 2/5. 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.
Wed 4/297:00 am
DFW
-
OPO
2 stops18h 40m
American Airlines
Tue 5/58:20 am
OPO
-
DFW
2 stops18h 10m
American Airlines
Deal found 2/5$599
This KLM deal was found by Cheapflights users on 2/4. 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 2/4$602
This Expedia deal was found by Cheapflights users on 2/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/85:15 pm
DFW
-
OPO
1 stop24h 10m
Lufthansa
Mon 3/164:15 pm
OPO
-
DFW
1 stop28h 10m
Lufthansa
Deal found 2/6$613
This American Airlines deal was found by Cheapflights users on 2/6. 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.
Wed 10/149:45 pm
DFW
-
OPO
1 stop12h 15m
American Airlines
Tue 10/2012:25 pm
OPO
-
DFW
1 stop13h 45m
American Airlines
Deal found 2/6$616
This Delta deal was found by Cheapflights users on 2/6. 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 3/188:00 am
DFW
-
OPO
2 stops21h 30m
Delta
Thu 4/95:00 am
OPO
-
DFW
2 stops24h 13m
Delta
Deal found 2/6$623
This KLM deal was found by Cheapflights users on 2/4. 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 3/3011:44 am
DFW
-
OPO
2 stops16h 56m
KLM
Thu 4/165:55 am
OPO
-
DFW
1 stop13h 40m
KLM
Deal found 2/4$626
This KAYAK deal was found by Cheapflights users on 2/6. 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 3/233:59 pm
DAL
-
OPO
2 stops36h 36m
Scandinavian Airlines
Mon 3/3012:00 pm
OPO
-
DAL
2 stops40h 45m
Scandinavian Airlines
Deal found 2/6$637
This KLM deal was found by Cheapflights users on 2/5. 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 2/5$761
This KLM deal was found by Cheapflights users on 2/5. 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 2/2611:58 am
DAL
-
OPO
2 stops16h 32m
KLM
Tue 3/316:15 am
OPO
-
DAL
2 stops17h 39m
KLM
Deal found 2/5$830

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 7, 2026.

Round-trip from

$585
(Expedia)

One-way from

$394
(oojo)

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. 20% potential increase in price ($211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 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 7, 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

Tue 4/28

9:45 pm-8:00 pm

1 stop16h 15m

Porto

Thu 5/7

8:20 am-8:10 pm

1 stop17h 50m

$585

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-11:13 pm

2 stops24h 13m

$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

$626

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Mon 3/23

12:12 pm-9:35 am

2 stops40h 23m

Porto

Mon 3/30

11:50 am-10:45 pm

2 stops40h 55m

$637

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/8

7:00 am-9:30 am

2 stops21h 30m

Porto

Mon 3/16

6:00 am-9:53 am

2 stops32h 53m

$641

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/8

5:15 pm-10:45 pm

2 stops24h 30m

Porto

Mon 3/16

2:00 pm-3:25 pm

3 stops30h 25m

$667

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/1

1:55 pm-7:40 am

1 stop11h 45m

Porto

Thu 3/12

12:25 pm-7:35 am

2 stops24h 10m

$695

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/1

8:05 am-10:30 am

2 stops20h 25m

Porto

Thu 3/12

5:00 am-11:59 pm

2 stops23h 59m

$699

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/1

7:10 am-9:30 am

2 stops20h 20m

Porto

Thu 3/12

12:35 pm-9:42 pm

1 stop14h 07m

$700

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

$761

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 23 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 January 30, 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.

How much does it cost to fly round-trip from Dallas to Porto?

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 7, 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
8,164 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

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
8,164 reviews
Delta
7.9
Good
8,164 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

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
9,245 reviews
Delta
7.9
Good
8,164 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

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
11,247 reviews
Delta
7.9
Good
8,164 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

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
3,106 reviews
Delta
7.9
Good
8,164 reviews

Comfort

7.9

Overall

7.9

Boarding

8.1

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 16h 15m. Fly via Iberia, Delta, 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

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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 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$546Average$844FlexibilityNo cancel feeOn-time71%
IberiaCheapest$565Average$841FlexibilityNo cancel feeOn-time77%
DeltaCheapest$569Average$1,096FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$693Average$1,106FlexibilityNo cancel feeOn-time69%

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