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Cheap flights from Portugal to Dallas from $450

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 3/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 - 10:01 amLIS-DFW
33h 31m2 stops
Multiple Airlines Logo
4:55 pm - 3:25 pmDFW-LIS
16h 30m1 stop
$622Multiple Airlines
Find Deal
Wed, Feb 18 - Sun, Mar 1
Multiple Airlines Logo
7:05 am - 11:12 amLIS-DFW
34h 07m2 stops
Multiple Airlines Logo
4:55 pm - 3:25 pmDFW-LIS
16h 30m1 stop
$653Multiple Airlines
Find Deal
Fri, Feb 20 - Sun, Mar 1
Multiple Airlines Logo
6:30 am - 10:01 amLIS-DFW
33h 31m2 stops
Multiple Airlines Logo
4:15 pm - 3:05 pmDFW-LIS
16h 50m1 stop
$660Multiple Airlines
Find Deal
Wed, Feb 18 - Thu, Feb 26
Multiple Airlines Logo
11:35 am - 10:01 amLIS-DFW
28h 26m2 stops
Multiple Airlines Logo
4:55 pm - 3:25 pmDFW-LIS
16h 30m1 stop
$663Multiple Airlines
Find Deal
Wed, Feb 18 - Mon, Feb 23
KLM Logo
6:35 am - 7:55 pmOPO-DFW
19h 20m2 stops
KLM Logo
1:33 pm - 10:30 amDFW-OPO
14h 57m2 stops
$833KLM
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Thu, Nov 27 - Mon, Dec 1
Lufthansa Logo
6:00 am - 9:45 pmOPO-DFW
21h 45m2 stops
Lufthansa Logo
4:15 pm - 2:55 pmDFW-OPO
16h 40m1 stop
$859Lufthansa
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Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
8:40 pm - 5:30 amOPO-DFW
14h 50m1 stop
American Airlines Logo
1:55 pm - 7:40 amDFW-OPO
11h 45m1 stop
$860American Airlines
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Sat, Nov 8 - Sat, Nov 15
SWISS Logo
11:25 am - 10:59 pmOPO-DFW
41h 34m2 stops
SWISS Logo
1:10 pm - 5:30 pmDFW-OPO
22h 20m2 stops
$867SWISS
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Thu, Feb 19 - Mon, Feb 23
Lufthansa Logo
12:30 pm - 2:25 pmOPO-DFW
31h 55m1 stop
Lufthansa Logo
3:50 pm - 10:25 pmDFW-OPO
24h 35m2 stops
$869Lufthansa
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Wed, Dec 3 - Wed, Dec 10
SWISS Logo
12:05 pm - 10:59 pmOPO-DFW
40h 54m2 stops
SWISS Logo
1:10 pm - 5:30 pmDFW-OPO
22h 20m2 stops
$872SWISS
Find Deal
Thu, Feb 19 - Mon, Feb 23

Lufthansa flights from Portugal to Dallas/Fort Worth Airport

Our best Lufthansa deals on Portugal to Dallas/Fort Worth Airport flight tickets
Lufthansa
Feb 19
OPO6:00 amPorto
21h 45m
2 stops
DFW9:45 pmDallas/Fort Worth
Feb 23
DFW4:15 pmDallas/Fort Worth
16h 40m
1 stop
OPO2:55 pmPorto
$859
Find similar
Lufthansa
Dec 3
OPO12:30 pmPorto
31h 55m
1 stop
DFW2:25 pmDallas/Fort Worth
Dec 10
DFW3:50 pmDallas/Fort Worth
24h 35m
2 stops
OPO10:25 pmPorto
$869
Find similar
Lufthansa
Feb 19
OPO4:15 pmPorto
36h 44m
2 stops
DFW10:59 pmDallas/Fort Worth
Feb 23
DFW4:15 pmDallas/Fort Worth
16h 40m
1 stop
OPO2:55 pmPorto
$878
Find similar

SWISS flights from Portugal to Dallas/Fort Worth Airport

Our best SWISS deals on Portugal to Dallas/Fort Worth Airport flight tickets
SWISS
Feb 19
OPO11:25 amPorto
41h 34m
2 stops
DFW10:59 pmDallas/Fort Worth
Feb 23
DFW1:10 pmDallas/Fort Worth
22h 20m
2 stops
OPO5:30 pmPorto
$867
Find similar
SWISS
Feb 19
OPO12:05 pmPorto
40h 54m
2 stops
DFW10:59 pmDallas/Fort Worth
Feb 23
DFW1:10 pmDallas/Fort Worth
22h 20m
2 stops
OPO5:30 pmPorto
$872
Find similar
SWISS
Feb 19
OPO12:05 pmPorto
40h 54m
2 stops
DFW10:59 pmDallas/Fort Worth
Feb 23
DFW1:10 pmDallas/Fort Worth
22h 20m
2 stops
OPO5:30 pmPorto
$886
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 October 20, 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

Wed 2/18

6:30 am-10:01 am

2 stops33h 31m

Dallas/Fort Worth

Sun 3/1

4:55 pm-3:25 pm

1 stop16h 30m

$622

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Fri 2/20

7:05 am-11:12 am

2 stops34h 07m

Dallas/Fort Worth

Sun 3/1

4:55 pm-3:25 pm

1 stop16h 30m

$653

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Wed 2/18

6:30 am-10:01 am

2 stops33h 31m

Dallas/Fort Worth

Thu 2/26

4:15 pm-3:05 pm

1 stop16h 50m

$660

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Wed 2/18

11:35 am-10:01 am

2 stops28h 26m

Dallas/Fort Worth

Mon 2/23

4:55 pm-3:25 pm

1 stop16h 30m

$663

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 11/27

6:35 am-7:55 pm

2 stops19h 20m

Dallas/Fort Worth

Mon 12/1

1:33 pm-10:30 am

2 stops14h 57m

$833

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/19

6:00 am-9:45 pm

2 stops21h 45m

Dallas/Fort Worth

Mon 2/23

4:15 pm-2:55 pm

1 stop16h 40m

$859

PortoDallas

OPO - DFW

OPODFW

Porto

Sat 11/8

8:40 pm-5:30 am

1 stop14h 50m

Dallas/Fort Worth

Sat 11/15

1:55 pm-7:40 am

1 stop11h 45m

$860

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/19

11:25 am-10:59 pm

2 stops41h 34m

Dallas/Fort Worth

Mon 2/23

1:10 pm-5:30 pm

2 stops22h 20m

$867

PortoDallas

OPO - DFW

OPODFW

Porto

Wed 12/3

12:30 pm-2:25 pm

1 stop31h 55m

Dallas/Fort Worth

Wed 12/10

3:50 pm-10:25 pm

2 stops24h 35m

$869

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 2/19

12:05 pm-10:59 pm

2 stops40h 54m

Dallas/Fort Worth

Mon 2/23

1:10 pm-5:30 pm

2 stops22h 20m

$872

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 $763.

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 7% 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

Direct flights

None
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 $773Free CancellationRating
7.2
11,024 reviews
Search American Airlines flights

Traveling to a place near Dallas?

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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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