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$326+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — OPO
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Cheapflights Tip: The best prices from Dallas to Porto are usually found in January or February, booked 55 days in advance, depart on a Tuesday or Sunday and return on a Thursday

Find 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 October 23, 2025.

This KLM deal was found by Cheapflights users on 10/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2411:47 amDFW - OPO
2 stops16h 43mKLM
Sun 12/75:00 amOPO - DFW
2 stops18h 33mKLM
Deal found 10/21$532
This Iberia deal was found by Cheapflights users on 10/21. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:50 pmDFW - OPO
1 stop16h 45mMultiple Airlines
Sun 12/78:20 amOPO - DFW
1 stop14h 10mMultiple Airlines
Deal found 10/21$536
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1810:11 amDAL - OPO
2 stops18h 19mDelta
Wed 11/266:00 amOPO - DAL
2 stops23h 52mDelta
Deal found 10/20$541
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/189:53 amDFW - OPO
2 stops18h 37mDelta
Wed 11/2611:15 amOPO - DFW
2 stops19h 01mDelta
Deal found 10/20$541
This Air Canada deal was found by Cheapflights users on 10/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:05 amDFW - OPO
2 stops23h 45mAir Canada
Tue 12/26:00 amOPO - DFW
2 stops45h 39mAir Canada
Deal found 10/20$550
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Sun 12/71:55 pmDFW - OPO
1 stop15h 50mAmerican Airlines
Sun 12/148:20 amOPO - DFW
2 stops19h 30mAmerican Airlines
Deal found 10/23$554
This United Airlines deal was found by Cheapflights users on 10/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:25 amDFW - OPO
2 stops20h 05mUnited Airlines
Tue 12/212:30 pmOPO - DFW
2 stops33h 02mUnited Airlines
Deal found 10/21$557
This Booking.com deal was found by Cheapflights users on 10/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:13 pmDFW - OPO
2 stops42h 32mBritish Airways
Sun 12/78:40 pmOPO - DFW
2 stops32h 49mBritish Airways
Deal found 10/23$576
This Expedia deal was found by Cheapflights users on 10/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:40 pmDAL - OPO
2 stops14h 45mMultiple Airlines
Sun 12/75:00 amOPO - DAL
2 stops18h 52mMultiple Airlines
Deal found 10/21$590
This Mytrip deal was found by Cheapflights users on 10/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:05 amDFW - OPO
3 stops32h 10mMultiple Airlines
Mon 12/19:55 pmOPO - DFW
3 stops29h 37mMultiple Airlines
Deal found 10/21$609
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Tue 11/1812:10 pmDFW - OPO
2 stops15h 20mUnited Airlines
Wed 11/2612:35 pmOPO - DFW
1 stop15h 59mUnited Airlines
Deal found 10/20$615
This United Airlines deal was found by Cheapflights users on 10/22. 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 12/77:25 amDFW - OPO
2 stops22h 15mUnited Airlines
Sun 12/146:00 amOPO - DFW
2 stops20h 13mUnited Airlines
Deal found 10/22$619

Cheap 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 October 23, 2025.

Round-trip from

$532
(KLM)

One-way from

$326
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$720
From Dallas to Porto
Search Deals
One-way flight from Dallas to Porto
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($217 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 October 23, 2025.
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 11/24

11:47 am-10:30 am

2 stops16h 43m

Porto

Sun 12/7

5:00 am-5:33 pm

2 stops18h 33m

$532

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sat 12/6

7:05 am-6:35 pm

2 stops29h 30m

Porto

Sat 12/13

4:15 pm-2:25 pm

1 stop28h 10m

$532

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 11/24

6:35 am-9:30 am

1 stop20h 55m

Porto

Sun 12/7

4:15 pm-2:25 pm

1 stop28h 10m

$537

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Tue 11/18

10:11 am-10:30 am

2 stops18h 19m

Porto

Wed 11/26

6:00 am-11:52 pm

2 stops23h 52m

$541

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 11/19

6:00 am-10:30 am

2 stops22h 30m

Porto

Thu 11/27

6:35 am-9:05 am

2 stops32h 30m

$541

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 12/7

1:55 pm-11:45 am

1 stop15h 50m

Porto

Sun 12/14

8:20 am-9:50 pm

2 stops19h 30m

$554

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 11/24

7:00 am-9:30 am

2 stops20h 30m

Porto

Tue 12/2

12:30 pm-6:21 pm

2 stops35h 51m

$557

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 11/18

12:10 pm-9:30 am

2 stops15h 20m

Porto

Wed 11/26

12:35 pm-10:34 pm

1 stop15h 59m

$615

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 12/7

7:25 am-11:40 am

2 stops22h 15m

Porto

Sun 12/14

6:00 am-8:13 pm

2 stops20h 13m

$619

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Thu 1/22

12:01 pm-10:30 am

2 stops16h 29m

Porto

Wed 1/28

6:00 am-5:55 pm

2 stops17h 55m

$647

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 26 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 October 17, 2025.

Booking 55 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 $939). 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 DFW to OPO?

Find hourly flight availability from Dallas 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 October 23, 2025.

One of the essential ways to save on airfare from Dallas to Porto is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 20% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Dallas to Porto. Price data was last updated on December 16, 2024.

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

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 October 23, 2025.
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
7,981 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,981 reviews
Delta
7.9
Good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,991 reviews
Delta
7.9
Good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,028 reviews
Delta
7.9
Good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Iberia
7.0
Good
2,997 reviews
Delta
7.9
Good
7,981 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 15h 50m. Fly via KLM, Delta, or American Airlines 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 Delta. Our recent data shows that you can find tickets from as low as $534 on this airline. Additional options worth looking into are American Airlines and Iberia, starting at $546 and $576 round-trip. Delta 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 $939). 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

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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$534Average$1,096FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$546Average$858FlexibilityNo cancel feeOn-time71%
IberiaCheapest$576Average$839FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$693Average$1,109FlexibilityNo cancel feeOn-time69%

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