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Cheap flights from Portugal to Dallas from $429

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Dallas departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portugal to Dallas

Recent round-trip flight deals from Portugal to Dallas

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:00 pm - 7:34 pm
LIS
-
DFW
51h 34m2 stops
Multiple Airlines Logo
4:15 pm - 2:30 pm
DFW
-
LIS
16h 15m1 stop
$626Multiple Airlines
Mon, Feb 9 - Tue, Feb 24
Multiple Airlines Logo
7:35 pm - 10:49 pm
LIS
-
DFW
33h 14m2 stops
Multiple Airlines Logo
4:15 pm - 2:50 pm
DFW
-
LIS
16h 35m1 stop
$627Multiple Airlines
Wed, Feb 18 - Mon, Feb 23
Multiple Airlines Logo
5:55 am - 10:49 pm
LIS
-
DFW
22h 54m2 stops
Multiple Airlines Logo
4:15 pm - 2:50 pm
DFW
-
LIS
16h 35m1 stop
$655Multiple Airlines
Thu, Feb 19 - Mon, Feb 23
Scandinavian Airlines Logo
4:55 pm - 11:54 pm
LIS
-
DFW
36h 59m2 stops
Scandinavian Airlines Logo
3:45 pm - 8:55 am
DFW
-
LIS
35h 10m2 stops
$731Scandinavian Airlines
Mon, Feb 16 - Fri, Feb 27
Scandinavian Airlines Logo
1:00 pm - 10:31 pm
LIS
-
DAL
39h 31m2 stops
Scandinavian Airlines Logo
11:58 am - 8:55 am
DAL
-
LIS
38h 57m2 stops
$731Scandinavian Airlines
Thu, Feb 19 - Fri, Feb 27
Delta Logo
5:00 am - 11:19 pm
OPO
-
DFW
24h 19m2 stops
Delta Logo
4:05 pm - 10:30 am
DFW
-
OPO
12h 25m1 stop
$825Delta
Mon, Feb 9 - Tue, Feb 17
KLM Logo
11:25 am - 2:00 pm
OPO
-
DFW
32h 35m1 stop
KLM Logo
4:05 pm - 10:30 am
DFW
-
OPO
12h 25m1 stop
$839KLM
Mon, Feb 9 - Tue, Feb 17
American Airlines Logo
8:20 am - 4:50 pm
OPO
-
DFW
14h 30m1 stop
American Airlines Logo
5:20 pm - 4:00 pm
DFW
-
OPO
16h 40m1 stop
$889American Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
8:20 am - 10:29 pm
OPO
-
DFW
20h 09m2 stops
American Airlines Logo
10:34 am - 7:40 am
DFW
-
OPO
15h 06m2 stops
$895American Airlines
Thu, Feb 26 - Mon, Mar 2
KLM Logo
10:00 am - 10:29 pm
LIS
-
DAL
18h 29m2 stops
KLM Logo
3:57 pm - 2:35 pm
DAL
-
LIS
16h 38m2 stops
$903KLM
Sun, Feb 1 - Sun, Feb 8

Scandinavian Airlines flights from Portugal to Dallas

Our best Scandinavian Airlines deals on Portugal to Dallas flight tickets
Scandinavian Airlines
Feb 16
LIS4:55 pmLisbon Humberto Delgado
36h 59m
2 stops
DFW11:54 pmDallas/Fort Worth
Feb 27
DFW3:45 pmDallas/Fort Worth
35h 10m
2 stops
LIS8:55 amLisbon Humberto Delgado
$731
Find similar
Scandinavian Airlines
Feb 17
LIS12:50 pmLisbon Humberto Delgado
38h 53m
2 stops
DFW9:43 pmDallas/Fort Worth
Feb 24
DFW7:15 amDallas/Fort Worth
43h 40m
2 stops
LIS8:55 amLisbon Humberto Delgado
$772
Find similar
Scandinavian Airlines
Feb 17
LIS12:50 pmLisbon Humberto Delgado
41h 04m
2 stops
DFW11:54 pmDallas/Fort Worth
Feb 23
DFW3:45 pmDallas/Fort Worth
23h 45m
2 stops
LIS9:30 pmLisbon Humberto Delgado
$813
Find similar

Delta flights from Portugal to Dallas

Our best Delta deals on Portugal to Dallas flight tickets
Delta
Feb 9
OPO5:00 amPorto
24h 19m
2 stops
DFW11:19 pmDallas/Fort Worth
Feb 17
DFW4:05 pmDallas/Fort Worth
12h 25m
1 stop
OPO10:30 amPorto
$825
Find similar
Delta
Feb 1
LIS5:00 amLisbon Humberto Delgado
22h 43m
2 stops
DFW9:43 pmDallas/Fort Worth
Feb 8
DFW6:35 pmDallas/Fort Worth
16h 55m
2 stops
LIS5:30 pmLisbon Humberto Delgado
$833
Find similar
Delta
Feb 1
LIS11:25 amLisbon Humberto Delgado
19h 02m
2 stops
DFW12:27 amDallas/Fort Worth
Feb 8
DFW11:25 amDallas/Fort Worth
17h 55m
2 stops
LIS11:20 amLisbon Humberto Delgado
$834
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Dallas 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Portugal to Dallas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Mon 2/9

10:00 pm-7:34 pm

2 stops51h 34m

Dallas/Fort Worth

Tue 2/24

4:15 pm-2:30 pm

1 stop16h 15m

$626

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Wed 2/18

7:35 pm-10:49 pm

2 stops33h 14m

Dallas/Fort Worth

Mon 2/23

4:15 pm-2:50 pm

1 stop16h 35m

$627

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Thu 2/19

5:55 am-10:49 pm

2 stops22h 54m

Dallas/Fort Worth

Mon 2/23

4:15 pm-2:50 pm

1 stop16h 35m

$655

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Mon 2/16

4:55 pm-11:54 pm

2 stops36h 59m

Dallas/Fort Worth

Fri 2/27

3:45 pm-8:55 am

2 stops35h 10m

$731

LisbonDallas

LIS - DAL

LISDAL

Lisbon Humberto Delgado

Thu 2/19

1:00 pm-10:31 pm

2 stops39h 31m

Dallas Love Field

Fri 2/27

11:58 am-8:55 am

2 stops38h 57m

$731

PortoDallas

OPO - DFW

OPODFW

Porto

Mon 2/9

5:00 am-11:19 pm

2 stops24h 19m

Dallas/Fort Worth

Tue 2/17

4:05 pm-10:30 am

1 stop12h 25m

$825

PortoDallas

OPO - DFW

OPODFW

Porto

Mon 2/9

11:25 am-2:00 pm

1 stop32h 35m

Dallas/Fort Worth

Tue 2/17

4:05 pm-10:30 am

1 stop12h 25m

$839

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/26

8:20 am-4:50 pm

1 stop14h 30m

Dallas/Fort Worth

Mon 3/2

5:20 pm-4:00 pm

1 stop16h 40m

$889

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/26

8:20 am-10:29 pm

2 stops20h 09m

Dallas/Fort Worth

Mon 3/2

10:34 am-7:40 am

2 stops15h 06m

$895

LisbonDallas

LIS - DAL

LISDAL

Lisbon Humberto Delgado

Sun 2/1

10:00 am-10:29 pm

2 stops18h 29m

Dallas Love Field

Sun 2/8

3:57 pm-2:35 pm

2 stops16h 38m

$903

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dallas from

How to get the cheapest flight ticket from Portugal to Dallas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dallas?

If you are unable to visit Dallas during the month of February, then departing from Portugal during the month October is also very affordable. Most momondo users find prices during this month for around $765.

What is the cheapest day to depart on your flight to Dallas?

On average, the least expensive day to fly to Dallas from Portugal is on a Thursday. momondo users have found tickets for Thursday departures for as low as $818. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Portugal because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,324.

What is the cheapest time of day to depart on your flight to Dallas?

Flying to Dallas from Portugal in the morning is the least expensive time of day to depart. momondo users have found prices as low as $967 when looking at flights departing in the morning. In the afternoon is when there is more demand to fly to Dallas, so prices are often more expensive at around $1,327 per ticket.

Cheap Portugal to Dallas flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portugal to Dallas

Fastest flight time

15h 25m

Direct flights

None
The fastest flight from Portugal to Dallas takes 15h 25m
There are no direct flights from Portugal to Dallas. There are no popular flight routes from Portugal to Dallas.
Search flight deals

  • When did momondo last update prices for flights from Portugal to Dallas?

    Prices for flights from Portugal to Dallas refresh daily.

  • How many operators does momondo search for flights from Portugal to Dallas?

  • How old do you have to be to fly from Portugal to Dallas?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portugal to Dallas.

  • What documentation or ID do you need to fly to Dallas?

    The required travel and health documents for your Dallas trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dallas. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portugal to Dallas

Compare and see reviews for airlines that fly from Portugal to Dallas with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $790Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portugal to Dallas?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portugal to Dallas. momondo saves you time and could save you money on your trip.

Can I find flights from Portugal to Dallas with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Dallas from Portugal with this policy.

How can momondo help me find flights from Portugal to Dallas?

Once you have performed a search for Portugal to Dallas flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portugal to Dallas right now. Can momondo alert me if prices change?

Price alerts on flights to Dallas from Portugal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United States

Fly into one of these airports located in Dallas

Airports listed have a maximum distance of 15.5 mi from Dallas
Dallas Love Field Airport
Dallas/Fort Worth Airport