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Cheap flights from Portugal to Dallas from $373

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 1/14. 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
6:30 am - 12:20 am
LIS
-
DFW
23h 50m2 stops
Multiple Airlines Logo
7:05 am - 9:20 am
DFW
-
LIS
20h 15m1 stop
$657Multiple Airlines
Mon, Jan 26 - Sun, Feb 8
Multiple Airlines Logo
9:05 pm - 7:34 pm
LIS
-
DFW
52h 29m2 stops
Multiple Airlines Logo
9:32 am - 5:25 am
DFW
-
LIS
13h 53m1 stop
$678Multiple Airlines
Mon, Feb 2 - Tue, Feb 17
Multiple Airlines Logo
4:25 pm - 10:49 pm
LIS
-
DFW
36h 24m2 stops
Multiple Airlines Logo
4:15 pm - 3:40 pm
DFW
-
LIS
17h 25m1 stop
$692Multiple Airlines
Thu, Jan 22 - Thu, Jan 29
Multiple Airlines Logo
7:40 am - 11:58 pm
LIS
-
DFW
22h 18m2 stops
Multiple Airlines Logo
6:46 am - 3:15 pm
DFW
-
LIS
26h 29m2 stops
$694Multiple Airlines
Thu, Jan 22 - Thu, Jan 29
Multiple Airlines Logo
10:00 pm - 7:34 pm
LIS
-
DFW
51h 34m2 stops
Multiple Airlines Logo
1:40 pm - 11:40 am
DFW
-
LIS
16h 00m1 stop
$699Multiple Airlines
Mon, Jan 26 - Sun, Feb 8
Multiple Airlines Logo
6:20 am - 5:41 pm
LIS
-
DFW
41h 21m2 stops
Multiple Airlines Logo
1:40 pm - 11:40 am
DFW
-
LIS
16h 00m1 stop
$719Multiple Airlines
Mon, Feb 2 - Mon, Feb 9
United Airlines Logo
12:35 pm - 9:59 pm
OPO
-
DFW
15h 24m1 stop
United Airlines Logo
12:06 pm - 9:30 am
DFW
-
OPO
15h 24m2 stops
$871United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
12:35 pm - 9:59 pm
OPO
-
DFW
15h 24m1 stop
United Airlines Logo
10:48 am - 9:30 am
DFW
-
OPO
16h 42m2 stops
$872United Airlines
Thu, Feb 26 - Mon, Mar 2
Lufthansa Logo
4:15 pm - 9:55 pm
OPO
-
DFW
35h 40m2 stops
Lufthansa Logo
3:59 pm - 10:25 pm
DFW
-
OPO
24h 26m2 stops
$874Lufthansa
Thu, Dec 25 - Wed, Dec 31
KLM Logo
11:20 am - 2:00 pm
OPO
-
DFW
32h 40m1 stop
KLM Logo
4:05 pm - 10:30 am
DFW
-
OPO
12h 25m1 stop
$878KLM
Thu, Dec 25 - Wed, Dec 31

Iberia flights from Portugal to Dallas/Fort Worth Airport

Our best Iberia deals on Portugal to Dallas/Fort Worth Airport flight tickets
Iberia
Dec 20
OPO8:40 pmPorto
21h 05m
1 stop
DFW11:45 amDallas/Fort Worth
Jan 5
DFW4:50 pmDallas/Fort Worth
17h 10m
2 stops
OPO4:00 pmPorto
$1,030
Find similar
Iberia
Dec 20
OPO8:40 pmPorto
21h 05m
1 stop
DFW11:45 amDallas/Fort Worth
Jan 5
DFW5:15 pmDallas/Fort Worth
16h 45m
1 stop
OPO4:00 pmPorto
$1,181
Find similar
Iberia
Jan 5
LIS4:45 pmLisbon Humberto Delgado
30h 15m
1 stop
DFW5:00 pmDallas/Fort Worth
Jan 12
DFW5:30 pmDallas/Fort Worth
18h 35m
1 stop
LIS6:05 pmLisbon Humberto Delgado
$1,450
Find similar

United Airlines flights from Portugal to Dallas/Fort Worth Airport

Our best United Airlines deals on Portugal to Dallas/Fort Worth Airport flight tickets
United Airlines
Feb 26
LIS5:00 amLisbon Humberto Delgado
15h 25m
1 stop
DFW2:25 pmDallas/Fort Worth
Mar 2
DFW5:29 pmDallas/Fort Worth
10h 46m
1 stop
LIS10:15 amLisbon Humberto Delgado
$850
Find similar
United Airlines
Dec 26
LIS5:00 amLisbon Humberto Delgado
24h 06m
2 stops
DFW11:06 pmDallas/Fort Worth
Jan 1
DFW12:20 pmDallas/Fort Worth
15h 55m
1 stop
LIS10:15 amLisbon Humberto Delgado
$854
Find similar
United Airlines
Feb 26
LIS5:00 amLisbon Humberto Delgado
19h 21m
2 stops
DFW6:21 pmDallas/Fort Worth
Mar 2
DFW10:48 amDallas/Fort Worth
15h 22m
2 stops
LIS8:10 amLisbon Humberto Delgado
$856
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Dallas/Fort Worth Airport 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 9, 2025.
Use the filters below to find and compare flights from Portugal to Dallas/Fort Worth Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Mon 1/26

6:30 am-12:20 am

2 stops23h 50m

Dallas/Fort Worth

Sun 2/8

7:05 am-9:20 am

1 stop20h 15m

$657

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Mon 2/2

9:05 pm-7:34 pm

2 stops52h 29m

Dallas/Fort Worth

Tue 2/17

9:32 am-5:25 am

1 stop13h 53m

$678

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Thu 1/22

4:25 pm-10:49 pm

2 stops36h 24m

Dallas/Fort Worth

Thu 1/29

4:15 pm-3:40 pm

1 stop17h 25m

$692

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Thu 1/22

7:40 am-11:58 pm

2 stops22h 18m

Dallas/Fort Worth

Thu 1/29

6:46 am-3:15 pm

2 stops26h 29m

$694

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Mon 1/26

10:00 pm-7:34 pm

2 stops51h 34m

Dallas/Fort Worth

Sun 2/8

1:40 pm-11:40 am

1 stop16h 00m

$699

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Mon 2/2

6:20 am-5:41 pm

2 stops41h 21m

Dallas/Fort Worth

Mon 2/9

1:40 pm-11:40 am

1 stop16h 00m

$719

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/26

12:35 pm-9:59 pm

1 stop15h 24m

Dallas/Fort Worth

Mon 3/2

12:06 pm-9:30 am

2 stops15h 24m

$871

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/26

12:35 pm-9:59 pm

1 stop15h 24m

Dallas/Fort Worth

Mon 3/2

10:48 am-9:30 am

2 stops16h 42m

$872

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 12/25

4:15 pm-9:55 pm

2 stops35h 40m

Dallas/Fort Worth

Wed 12/31

3:59 pm-10:25 pm

2 stops24h 26m

$874

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 12/25

11:20 am-2:00 pm

1 stop32h 40m

Dallas/Fort Worth

Wed 12/31

4:05 pm-10:30 am

1 stop12h 25m

$878

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Portugal to Dallas/Fort Worth Airport

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/Fort Worth Airport?

The cheapest month to fly to Dallas/Fort Worth Airport from Portugal is in February. Flight prices, which tend to average around $755, are often lower during this time because this is during the off-season. If you’re not able to fly to Dallas/Fort Worth Airport in February, then October is your next best option. Flight prices from Portugal to Dallas/Fort Worth Airport during October average around $765.

What is the cheapest day to depart on your flight to Dallas/Fort Worth Airport?

On average, the least expensive day to fly to Dallas/Fort Worth Airport 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. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Portugal to Dallas/Fort Worth Airport for around $1,324.

What is the cheapest time of day to depart on your flight to Dallas/Fort Worth Airport?

Flying to Dallas/Fort Worth Airport 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. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,327 on average. Flights to Dallas/Fort Worth Airport from Portugal in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Portugal to Dallas/Fort Worth Airport flights?

You could potentially save up to 4% on your flight if you consider stops on a Portugal to Dallas/Fort Worth Airport flight.

Cheap Portugal to Dallas/Fort Worth Airport flight deals and tips

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

Fastest flight time

13h 45m

Direct flights

None
The fastest flight from Portugal to Dallas/Fort Worth Airport takes 13h 45m
There are no direct flights from Portugal to Dallas/Fort Worth Airport. There are no popular flight routes from Portugal to Dallas/Fort Worth Airport.
Search flight deals

  • When did momondo last update prices for flights from Portugal to Dallas/Fort Worth Airport?

    Prices for flights from Portugal to Dallas/Fort Worth Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portugal to Dallas/Fort Worth Airport?

  • How old do you have to be to fly from Portugal to Dallas/Fort Worth Airport?

    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/Fort Worth Airport.

  • What documentation or ID do you need to fly to Dallas/Fort Worth Airport?

    The required travel and health documents for your Dallas/Fort Worth Airport 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/Fort Worth Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portugal to Dallas/Fort Worth Airport

Compare and see reviews for airlines that fly from Portugal to Dallas/Fort Worth Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $790Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights

Traveling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
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Why use momondo?

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

Finding the right flight to Dallas from Portugal is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dallas quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Portugal to Dallas flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Dallas from Portugal. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Dallas, momondo offers a useful price alert feature which will track prices for flights to Dallas from Portugal and alert you when they change.

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