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Cheap flights from Portugal to Dallas from $391

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 11/19. 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

Logo
5:55 am - 10:31 amLIS-DFW
34h 36m2 stops
Logo
5:55 pm - 2:50 pmDFW-LIS
15h 55m1 stop
$640
Find Deal
Fri, Nov 14 - Sat, Mar 28
Logo
5:55 am - 4:01 pmLIS-DFW
40h 06m2 stops
Logo
4:50 pm - 3:50 pmDFW-LIS
17h 00m1 stop
$641
Find Deal
Fri, Nov 14 - Sun, Mar 29
Logo
5:55 am - 4:01 pmLIS-DFW
40h 06m2 stops
Logo
5:55 pm - 2:50 pmDFW-LIS
15h 55m1 stop
$645
Find Deal
Fri, Nov 14 - Sat, Mar 28
Lufthansa Logo
6:00 am - 6:27 pmOPO-DFW
18h 27m2 stops
Lufthansa Logo
3:50 pm - 3:45 pmDFW-OPO
17h 55m1 stop
$787Lufthansa
Find Deal
Thu, Sep 4 - Mon, Sep 8
Lufthansa Logo
5:05 am - 2:05 pmLIS-DFW
15h 00m1 stop
Lufthansa Logo
3:50 pm - 3:25 pmDFW-LIS
17h 35m1 stop
$789Lufthansa
Find Deal
Mon, Sep 22 - Mon, Sep 29
United Airlines Logo
5:05 am - 2:05 pmLIS-DFW
15h 00m1 stop
United Airlines Logo
7:00 am - 8:20 amDFW-LIS
19h 20m2 stops
$794United Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9
United Airlines Logo
5:05 am - 2:05 pmLIS-DFW
15h 00m1 stop
United Airlines Logo
9:25 am - 9:20 amDFW-LIS
17h 55m1 stop
$795United Airlines
Find Deal
Thu, Sep 4 - Wed, Sep 17
Air Canada Logo
5:00 am - 9:32 pmLIS-DFW
22h 32m2 stops
Air Canada Logo
12:20 pm - 9:20 amDFW-LIS
15h 00m1 stop
$801Air Canada
Find Deal
Thu, Nov 6 - Thu, Nov 13
SWISS Logo
7:20 pm - 10:15 pmOPO-DFW
32h 55m2 stops
SWISS Logo
2:25 pm - 7:55 amDFW-OPO
35h 30m2 stops
$803SWISS
Find Deal
Thu, Sep 4 - Mon, Sep 8
Air Canada Logo
5:00 am - 9:32 pmLIS-DFW
22h 32m2 stops
Air Canada Logo
7:05 am - 9:20 amDFW-LIS
20h 15m2 stops
$808Air Canada
Find Deal
Thu, Nov 6 - Thu, Nov 13

Air Canada flights from Portugal to Dallas/Fort Worth Airport

Our best Air Canada deals on Portugal to Dallas/Fort Worth Airport flight tickets
Air Canada
Nov 6
LIS5:00 amLisbon Humberto Delgado
22h 32m
2 stops
DFW9:32 pmDallas/Fort Worth
Nov 13
DFW12:20 pmDallas/Fort Worth
15h 00m
1 stop
LIS9:20 amLisbon Humberto Delgado
$801
Find similar
Air Canada
Nov 6
LIS5:00 amLisbon Humberto Delgado
22h 32m
2 stops
DFW9:32 pmDallas/Fort Worth
Nov 13
DFW7:05 amDallas/Fort Worth
20h 15m
2 stops
LIS9:20 amLisbon Humberto Delgado
$808
Find similar
Air Canada
Sep 4
OPO12:10 pmPorto
16h 05m
2 stops
DFW10:15 pmDallas/Fort Worth
Sep 8
DFW10:10 amDallas/Fort Worth
17h 25m
2 stops
OPO9:35 amPorto
$817
Find similar

Lufthansa flights from Portugal to Dallas/Fort Worth Airport

Our best Lufthansa deals on Portugal to Dallas/Fort Worth Airport flight tickets
Lufthansa
Sep 4
OPO6:00 amPorto
18h 27m
2 stops
DFW6:27 pmDallas/Fort Worth
Sep 8
DFW3:50 pmDallas/Fort Worth
17h 55m
1 stop
OPO3:45 pmPorto
$787
Find similar
Lufthansa
Sep 22
LIS5:05 amLisbon Humberto Delgado
15h 00m
1 stop
DFW2:05 pmDallas/Fort Worth
Sep 29
DFW3:50 pmDallas/Fort Worth
17h 35m
1 stop
LIS3:25 pmLisbon Humberto Delgado
$789
Find similar
Lufthansa
Sep 4
OPO6:00 amPorto
18h 27m
2 stops
DFW6:27 pmDallas/Fort Worth
Sep 8
DFW3:50 pmDallas/Fort Worth
17h 55m
1 stop
OPO3:45 pmPorto
$790
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 August 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

Fri 11/14

5:55 am-10:31 am

2 stops34h 36m

Dallas/Fort Worth

Sat 3/28

5:55 pm-2:50 pm

1 stop15h 55m

$640

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Fri 11/14

5:55 am-4:01 pm

2 stops40h 06m

Dallas/Fort Worth

Sun 3/29

4:50 pm-3:50 pm

1 stop17h 00m

$641

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Fri 11/14

5:55 am-4:01 pm

2 stops40h 06m

Dallas/Fort Worth

Sat 3/28

5:55 pm-2:50 pm

1 stop15h 55m

$645

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 9/4

6:00 am-6:27 pm

2 stops18h 27m

Dallas/Fort Worth

Mon 9/8

3:50 pm-3:45 pm

1 stop17h 55m

$787

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Mon 9/22

5:05 am-2:05 pm

1 stop15h 00m

Dallas/Fort Worth

Mon 9/29

3:50 pm-3:25 pm

1 stop17h 35m

$789

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Fri 9/5

5:05 am-2:05 pm

1 stop15h 00m

Dallas/Fort Worth

Tue 9/9

7:00 am-8:20 am

2 stops19h 20m

$794

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Thu 9/4

5:05 am-2:05 pm

1 stop15h 00m

Dallas/Fort Worth

Wed 9/17

9:25 am-9:20 am

1 stop17h 55m

$795

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Thu 11/6

5:00 am-9:32 pm

2 stops22h 32m

Dallas/Fort Worth

Thu 11/13

12:20 pm-9:20 am

1 stop15h 00m

$801

PortoDallas

OPO - DFW

OPODFW

Porto

Thu 9/4

7:20 pm-10:15 pm

2 stops32h 55m

Dallas/Fort Worth

Mon 9/8

2:25 pm-7:55 am

2 stops35h 30m

$803

LisbonDallas

LIS - DFW

LISDFW

Lisbon Humberto Delgado

Thu 11/6

5:00 am-9:32 pm

2 stops22h 32m

Dallas/Fort Worth

Thu 11/13

7:05 am-9:20 am

2 stops20h 15m

$808

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/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 18% 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 $790Free CancellationRating
7.2
10,000 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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