What is the cheapest airline that flies from Dallas to Portugal?

British Airways, United Airlines, and KLM are the most popular carriers operating from Dallas to Portugal

What airlines fly to Portugal?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to Portugal from Dallas according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 11 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Dallas to Portugal were last updated today.

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

As of January 2026, there are 11 operators available to choose from for flights from Dallas to Portugal.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dallas to Portugal.

What documentation or ID do you need to fly to Portugal?

The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$216 Cheap Flights from Dallas to Portugal in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Dallas to Portugal

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:32 pm - 9:35 am

DFW

FNC

38h 03m

2 stops

10:25 am - 5:35 pm

FNC

DFW

36h 10m

2 stops

$505KLM

Mon, Feb 23 - Mon, Mar 9

8:05 am - 8:00 am

DFW

LIS

17h 55m

1 stop

10:00 am - 12:19 am

LIS

DFW

20h 19m

2 stops

$512Delta

Mon, Feb 16 - Thu, Feb 26

6:00 am - 8:00 am

DAL

LIS

20h 00m

2 stops

10:00 am - 10:31 pm

LIS

DAL

18h 31m

2 stops

$512Delta

Tue, Feb 17 - Tue, Feb 24

9:15 pm - 9:45 pm

DFW

LIS

18h 30m

1 stop

7:05 am - 5:58 pm

LIS

DFW

39h 53m

2 stops

$516British Airways

Tue, Feb 24 - Tue, Mar 24

7:00 am - 2:50 pm

DFW

LIS

25h 50m

2 stops

5:00 am - 9:32 pm

LIS

DFW

22h 32m

2 stops

$517Air Canada

Mon, Feb 16 - Wed, Feb 25

12:00 pm - 2:50 pm

DFW

LIS

20h 50m

2 stops

11:20 am - 9:35 pm

LIS

DFW

16h 15m

1 stop

$519Air Canada

Wed, Feb 11 - Tue, Feb 17

1:40 pm - 3:10 pm

DFW

FNC

20h 30m

2 stops

6:40 pm - 6:55 pm

FNC

DFW

30h 15m

1 stop

$532British Airways

Tue, Mar 24 - Tue, Apr 14

7:00 am - 9:30 am

DFW

OPO

20h 30m

2 stops

6:00 am - 6:43 pm

OPO

DFW

18h 43m

2 stops

$591United Airlines

Mon, Feb 23 - Wed, Mar 4

7:10 am - 9:30 am

DFW

OPO

20h 20m

2 stops

12:35 pm - 9:42 pm

OPO

DFW

14h 07m

1 stop

$599United Airlines

Sun, Mar 1 - Thu, Mar 12

12:49 pm - 12:25 pm

DFW

FNC

17h 36m

2 stops

1:20 pm - 8:03 pm

FNC

DFW

36h 43m

2 stops

$692Iberia

Wed, Apr 29 - Mon, May 4

United Airlines flights from Dallas to Portugal

Our best United Airlines deals on Dallas to Portugal flight tickets

United Airlines

Feb 25

DFW1:20 pmDallas/Fort Worth

12h 50m

1 stop

LIS8:10 amLisbon Humberto Delgado

Mar 1

LIS10:15 amLisbon Humberto Delgado

14h 16m

1 stop

DFW6:31 pmDallas/Fort Worth

$532

United Airlines

Jan 29

DFW10:25 amDallas/Fort Worth

15h 45m

2 stops

LIS8:10 amLisbon Humberto Delgado

Feb 3

LIS11:20 amLisbon Humberto Delgado

37h 00m

2 stops

DFW6:20 pmDallas/Fort Worth

$537

United Airlines

Feb 1

DFW7:00 amDallas/Fort Worth

19h 10m

2 stops

LIS8:10 amLisbon Humberto Delgado

Feb 28

LIS5:00 amLisbon Humberto Delgado

15h 25m

1 stop

DFW2:25 pmDallas/Fort Worth

$545

KLM flights from Dallas to Portugal

Our best KLM deals on Dallas to Portugal flight tickets

KLM

Feb 23

DFW1:32 pmDallas/Fort Worth

38h 03m

2 stops

FNC9:35 amFunchal Madeira

Mar 9

FNC10:25 amFunchal Madeira

36h 10m

2 stops

DFW5:35 pmDallas/Fort Worth

$505

KLM

Feb 24

DAL10:45 amDallas Love Field

15h 15m

2 stops

LIS8:00 amLisbon Humberto Delgado

Mar 10

LIS10:00 amLisbon Humberto Delgado

17h 45m

2 stops

DAL10:45 pmDallas Love Field

$513

KLM

Feb 23

DAL10:45 amDallas Love Field

15h 15m

2 stops

LIS8:00 amLisbon Humberto Delgado

Mar 2

LIS11:15 amLisbon Humberto Delgado

17h 16m

2 stops

DAL10:31 pmDallas Love Field

$537

Fly from

Fly to

Route

Depart

Return

Price

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Mon 2/23

1:32 pm-9:35 am

2 stops38h 03m

Funchal Madeira

Mon 3/9

10:25 am-5:35 pm

2 stops36h 10m

$505

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Mon 2/16

8:05 am-8:00 am

1 stop17h 55m

Lisbon Humberto Delgado

Thu 2/26

10:00 am-12:19 am

2 stops20h 19m

$512

DallasLisbon

DAL - LIS

DALLIS

Dallas Love Field

Tue 2/17

6:00 am-8:00 am

2 stops20h 00m

Lisbon Humberto Delgado

Tue 2/24

10:00 am-10:31 pm

2 stops18h 31m

$512

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Tue 2/24

9:15 pm-9:45 pm

1 stop18h 30m

Lisbon Humberto Delgado

Tue 3/24

7:05 am-5:58 pm

2 stops39h 53m

$516

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Mon 2/16

7:00 am-2:50 pm

2 stops25h 50m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-9:32 pm

2 stops22h 32m

$517

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Wed 2/11

12:00 pm-2:50 pm

2 stops20h 50m

Lisbon Humberto Delgado

Tue 2/17

11:20 am-9:35 pm

1 stop16h 15m

$519

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Tue 3/24

1:40 pm-3:10 pm

2 stops20h 30m

Funchal Madeira

Tue 4/14

6:40 pm-6:55 pm

1 stop30h 15m

$532

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 2/23

7:00 am-9:30 am

2 stops20h 30m

Porto

Wed 3/4

6:00 am-6:43 pm

2 stops18h 43m

$591

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 3/1

7:10 am-9:30 am

2 stops20h 20m

Porto

Thu 3/12

12:35 pm-9:42 pm

1 stop14h 07m

$599

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Wed 4/29

12:49 pm-12:25 pm

2 stops17h 36m

Funchal Madeira

Mon 5/4

1:20 pm-8:03 pm

2 stops36h 43m

$692

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Dallas to Portugal

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

Prices

Airlines

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Dallas is in February. Flight prices, which tend to average around $572, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Dallas during October instead. Flights to Portugal in October, while not as cheap as those in February, still average around $617.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $713 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Dallas for as low as $675 on momondo.

Cheap Dallas to Portugal flight deals and tips

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

Fastest flight time	11h 45m
Direct flights	None

The fastest flight from Dallas to Portugal takes 11h 45m

There are no direct flights from Dallas to Portugal. There are no popular flight routes from Dallas to Portugal.

Search flight deals

When did momondo last update prices for flights from Dallas to Portugal?
Prices for flights from Dallas to Portugal were last updated today.
How many operators does momondo search for flights from Dallas to Portugal?
As of January 2026, there are 11 operators available to choose from for flights from Dallas to Portugal.
How old do you have to be to fly from Dallas to Portugal?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dallas to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Dallas to Portugal

Compare and see reviews for airlines that fly from Dallas to Portugal with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $465	Free Cancellation	Rating 6.8 7,749 reviews	Search Lufthansa flights
British Airways	PriceFrom $500	Free Cancellation	Rating 6.7 7,702 reviews	Search British Airways flights
American Airlines	PriceFrom $508	Free Cancellation	Rating 7.2 11,198 reviews	Search American Airlines flights
Delta	PriceFrom $517	Free Cancellation	Rating 7.9 8,119 reviews	Search Delta flights
Air France	PriceFrom $521	Free Cancellation	Rating 7.4 1,526 reviews	Search Air France flights
United Airlines	PriceFrom $532	Free Cancellation	Rating 7.4 9,206 reviews	Search United Airlines flights
Iberia	PriceFrom $537	Free Cancellation	Rating 7.0 3,098 reviews	Search Iberia flights
Finnair	PriceFrom $541	Free Cancellation	Rating 7.6 1,356 reviews	Search Finnair flights
Air Canada	PriceFrom $560	Free Cancellation	Rating 7.1 10,660 reviews	Search Air Canada flights
KLM	PriceFrom $572	Free Cancellation	Rating 7.7 1,443 reviews	Search KLM flights

Why use momondo?

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

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

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

Yes. All flights to Portugal from Dallas on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Dallas to Portugal.

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

If you are not ready to book a flight from Dallas to Portugal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portugal and let you know when they change.