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Portugal

$278+ Cheap flights from Dallas to Portugal

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — LIS
Jun 21 — Jun 281
Sun 6/21
Sun 6/28
1 adult, Economy
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Cheap flight deals from Dallas to Portugal

Cheapest flights from Dallas to Portugal
Explore the most affordable flight options available from Dallas to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.

This Finnair deal was found by Cheapflights users on 5/18. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:55 pm
DFW
-
LIS
1 stop16h 00m
Multiple Airlines
Mon 11/94:10 pm
LIS
-
DFW
1 stop29h 25m
Multiple Airlines
Deal found 5/18$718
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Mon 10/1912:25 pm
DFW
-
LIS
1 stop14h 55m
United Airlines
Tue 11/35:00 am
LIS
-
DFW
1 stop15h 25m
United Airlines
Deal found 5/21$720
This United Airlines deal was found by Cheapflights users on 5/17. 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 11/912:10 pm
DFW
-
LIS
1 stop15h 40m
United Airlines
Thu 11/125:00 am
LIS
-
DFW
1 stop15h 25m
United Airlines
Deal found 5/17$721
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Tue 10/207:00 am
DFW
-
LIS
2 stops19h 20m
United Airlines
Tue 11/35:00 am
LIS
-
DFW
1 stop15h 25m
United Airlines
Deal found 5/21$722
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Mon 11/912:10 pm
DFW
-
LIS
1 stop15h 40m
United Airlines
Wed 11/1811:20 am
LIS
-
DFW
2 stops33h 51m
United Airlines
Deal found 5/20$723
This KLM deal was found by Cheapflights users on 5/21. 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.
Wed 10/281:25 pm
DFW
-
LIS
2 stops13h 35m
KLM
Tue 11/175:00 am
LIS
-
DFW
2 stops17h 57m
KLM
Deal found 5/21$724
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Mon 10/196:00 am
DFW
-
LIS
2 stops21h 20m
United Airlines
Wed 11/45:00 am
LIS
-
DFW
1 stop15h 25m
United Airlines
Deal found 5/21$725
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Sat 10/178:45 pm
DFW
-
LIS
1 stop32h 20m
United Airlines
Tue 11/35:00 am
LIS
-
DFW
1 stop15h 25m
United Airlines
Deal found 5/20$726
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Sat 10/174:58 pm
DFW
-
LIS
1 stop33h 22m
United Airlines
Thu 11/51:00 pm
LIS
-
DFW
1 stop31h 57m
United Airlines
Deal found 5/21$730
This Delta deal was found by Cheapflights users on 5/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:00 pm
DFW
-
LIS
1 stop11h 45m
Delta
Thu 11/55:30 am
LIS
-
DFW
1 stop14h 30m
Delta
Deal found 5/21$731
This Delta deal was found by Cheapflights users on 5/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:10 am
DFW
-
LIS
2 stops17h 50m
Delta
Thu 11/55:30 am
LIS
-
DFW
1 stop14h 30m
Delta
Deal found 5/21$735
This KLM deal was found by Cheapflights users on 5/21. 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.
Wed 10/2812:01 pm
DAL
-
LIS
2 stops14h 59m
Multiple Airlines
Tue 11/1711:15 am
LIS
-
DAL
2 stops17h 17m
Multiple Airlines
Deal found 5/21$735

Find flight deals from Dallas to Portugal

Keep the following information in mind while searching for Dallas to Portugal flight deals. Data was last updated May 22, 2026.

Round-trip from

$718
(Finnair)

One-way from

$278
(KAYAK)

Popular in

June

Cheapest in

February

Average price

$930
From Dallas to Portugal
Search Deals
One-way flight from Dallas to Portugal
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($198 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas to Portugal 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 May 22, 2026.
Use the filters below to find and compare flights from Dallas to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Tue 10/20

7:00 am-8:20 am

2 stops19h 20m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-2:25 pm

1 stop15h 25m

$722

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Mon 11/9

12:10 pm-9:50 am

1 stop15h 40m

Lisbon Humberto Delgado

Wed 11/18

11:20 am-3:11 pm

2 stops33h 51m

$723

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Mon 10/19

6:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Tue 11/3

5:00 am-2:25 pm

1 stop15h 25m

$725

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Sun 10/18

8:10 am-8:00 am

2 stops17h 50m

Lisbon Humberto Delgado

Thu 11/5

5:30 am-2:00 pm

1 stop14h 30m

$735

DallasLisbon

DAL - LIS

DALLIS

Dallas Love Field

Tue 11/3

10:20 am-8:00 am

2 stops15h 40m

Lisbon Humberto Delgado

Tue 11/10

5:30 am-8:36 pm

2 stops21h 06m

$746

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 10/21

12:25 pm-7:00 am

1 stop12h 35m

Porto

Tue 11/3

12:35 pm-8:35 am

2 stops26h 00m

$838

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 10/19

5:45 am-7:00 am

2 stops19h 15m

Porto

Tue 11/3

6:00 am-9:08 pm

2 stops21h 08m

$843

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 10/18

1:18 pm-3:30 pm

2 stops20h 12m

Porto

Wed 11/4

5:00 am-10:03 pm

2 stops23h 03m

$845

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 11/1

8:45 am-9:05 am

1 stop18h 20m

Porto

Thu 11/19

11:00 am-9:07 pm

1 stop16h 07m

$849

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Mon 10/12

3:50 pm-12:55 pm

2 stops39h 05m

Funchal Madeira

Wed 10/21

1:35 pm-9:40 pm

2 stops38h 05m

$852

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/18

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Dallas to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, April is the cheapest month in which you can book a flight from Dallas to Portugal (average of $382). Flying from Dallas to Portugal in June is currently the most expensive (average of $683). 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 far ahead should I book a flight from Dallas to Portugal?

To ensure you get the cheapest price possible for a flight from Dallas to Portugal, you should look to book at least 75 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated May 22, 2026.
See what other customers who have flown with Finnair,United Airlines, andAmerican Airlines from Dallas to Portugal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.7
Good
1,398 reviews

Comfort

7.5

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
Finnair
7.7
Good
1,398 reviews
Finnair
7.7
Good
1,398 reviews

Comfort

7.5

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
United Airlines
7.4
Good
9,746 reviews
Finnair
7.7
Good
1,398 reviews

Comfort

7.5

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
American Airlines
7.1
Good
11,642 reviews
Finnair
7.7
Good
1,398 reviews

Comfort

7.5

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
Iberia
7.0
Good
3,220 reviews
Finnair
7.7
Good
1,398 reviews

Comfort

7.5

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.
British Airways
6.7
Okay
7,991 reviews
Finnair
7.7
Good
1,398 reviews

Comfort

7.5

Food

6.7

Boarding

7.7

Overall

7.7

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

LAX - HEL

All crew members are really nice behavior. Devdutt also nice person.

Related info for your journey

Find useful and relevant information for your journey from Dallas to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Dallas to Portugal?

    For as low as $735, United Airlines can have you in Portugal from Dallas in 17h 50m. Airlines will cover a distance of 4740 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Dallas to Portugal one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $233. American Airlines flights start at $237 while deals on British Airways start at $238 one-way.

  • What are the most popular routes from Dallas to Portugal?

    While some choose either Dallas Love Field - Lisbon Humberto Delgado or Dallas/Fort Worth - Porto, Dallas/Fort Worth - Lisbon Humberto Delgado is the most popular route from Dallas to Portugal.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Dallas to Portugal (average of $382). Flying from Dallas to Portugal in June is currently the most expensive (average of $683). 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

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Top 10 airlines flying from Dallas to Portugal

Discover the top 10 airlines that operate flights from Dallas to Portugal. 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 May 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$457Average$897FlexibilityNo cancel feeOn-time76%
IberiaCheapest$494Average$826FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$494Average$812FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$496Average$687FlexibilityNo cancel feeOn-time70%
FinnairCheapest$509Average$780FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$516Average$824FlexibilityNo cancel feeOn-time67%
DeltaCheapest$517Average$839FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$518Average$692FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$530Average$946FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$612Average$928FlexibilityNo cancel feeOn-time77%

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