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

British Airways, KLM, and United Airlines 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 30% 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 December 2025, 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.

$220 Cheap Flights from Dallas to Portugal in 2025/26

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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.

2:59 pm - 5:50 pm

DFW

FNC

20h 51m2 stops

10:25 am - 12:16 am

FNC

DFW

19h 51m2 stops

$532KLM

Fri, Feb 27 - Wed, Mar 4

9:15 pm - 11:20 am

DFW

FNC

32h 05m1 stop

3:05 pm - 7:10 pm

FNC

DFW

34h 05m1 stop

$533British Airways

Wed, Jan 14 - Tue, Jan 20

9:15 pm - 11:20 am

DFW

FNC

32h 05m1 stop

3:05 pm - 6:08 pm

FNC

DFW

33h 03m2 stops

$536British Airways

Wed, Jan 14 - Tue, Jan 20

12:30 pm - 11:00 am

DFW

LIS

16h 30m1 stop

11:25 am - 11:40 am

LIS

DFW

30h 15m2 stops

$585Air Canada

Wed, May 13 - Mon, May 18

7:27 pm - 9:20 am

DFW

LIS

31h 53m2 stops

11:25 am - 1:25 pm

LIS

DFW

32h 00m3 stops

$589United Airlines

Mon, Apr 13 - Mon, Apr 20

9:00 pm - 11:00 am

DFW

LIS

32h 00m1 stop

11:25 am - 9:45 pm

LIS

DFW

16h 20m1 stop

$594Air Canada

Fri, May 8 - Mon, May 18

10:30 am - 3:25 pm

DAL

OPO

23h 55m2 stops

11:45 am - 9:42 am

OPO

DAL

27h 57m2 stops

$597Delta

Wed, Mar 18 - Tue, Mar 31

7:30 am - 7:40 am

DFW

OPO

18h 10m2 stops

12:25 pm - 5:30 am

OPO

DFW

23h 05m1 stop

$599American Airlines

Wed, Jan 14 - Wed, Jan 28

3:55 pm - 3:25 pm

DAL

OPO

18h 30m2 stops

4:20 pm - 5:54 pm

OPO

DAL

31h 34m2 stops

$615Delta

Wed, Mar 18 - Mon, Mar 30

9:10 am - 7:40 am

DFW

OPO

17h 30m2 stops

8:20 am - 9:50 pm

OPO

DFW

19h 30m2 stops

$640American Airlines

Wed, Mar 18 - Thu, Apr 9

Air Canada flights from Dallas to Portugal

Our best Air Canada deals on Dallas to Portugal flight tickets

Air Canada

May 13

DFW12:30 pmDallas/Fort Worth

16h 30m

1 stop

LIS11:00 amLisbon Humberto Delgado

May 18

LIS11:25 amLisbon Humberto Delgado

30h 15m

2 stops

DFW11:40 amDallas/Fort Worth

$585

Find similar

Air Canada

May 8

DFW9:00 pmDallas/Fort Worth

32h 00m

1 stop

LIS11:00 amLisbon Humberto Delgado

May 18

LIS11:25 amLisbon Humberto Delgado

16h 20m

1 stop

DFW9:45 pmDallas/Fort Worth

$594

Find similar

Air Canada

May 9

DFW9:00 pmDallas/Fort Worth

32h 00m

1 stop

LIS11:00 amLisbon Humberto Delgado

May 17

LIS11:25 amLisbon Humberto Delgado

30h 15m

2 stops

DFW11:40 amDallas/Fort Worth

$608

Find similar

United Airlines flights from Dallas to Portugal

Our best United Airlines deals on Dallas to Portugal flight tickets

United Airlines

Apr 13

DFW7:27 pmDallas/Fort Worth

31h 53m

2 stops

LIS9:20 amLisbon Humberto Delgado

Apr 20

LIS11:25 amLisbon Humberto Delgado

32h 00m

3 stops

DFW1:25 pmDallas/Fort Worth

$589

Find similar

United Airlines

Mar 16

DFW5:15 pmDallas/Fort Worth

16h 35m

1 stop

LIS2:50 pmLisbon Humberto Delgado

Apr 3

LIS11:25 amLisbon Humberto Delgado

29h 36m

2 stops

DFW11:01 amDallas/Fort Worth

$645

Find similar

United Airlines

May 14

DFW5:45 pmDallas/Fort Worth

11h 20m

1 stop

LIS11:05 amLisbon Humberto Delgado

May 19

LIS12:55 pmLisbon Humberto Delgado

30h 41m

2 stops

DFW1:36 pmDallas/Fort Worth

$650

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Fri 2/27

2:59 pm-5:50 pm

2 stops20h 51m

Funchal Madeira

Wed 3/4

10:25 am-12:16 am

2 stops19h 51m

$532

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Wed 1/14

9:15 pm-11:20 am

1 stop32h 05m

Funchal Madeira

Tue 1/20

3:05 pm-7:10 pm

1 stop34h 05m

$533

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Wed 1/14

9:15 pm-11:20 am

1 stop32h 05m

Funchal Madeira

Tue 1/20

3:05 pm-6:08 pm

2 stops33h 03m

$536

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Wed 5/13

12:30 pm-11:00 am

1 stop16h 30m

Lisbon Humberto Delgado

Mon 5/18

11:25 am-11:40 am

2 stops30h 15m

$585

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Mon 4/13

7:27 pm-9:20 am

2 stops31h 53m

Lisbon Humberto Delgado

Mon 4/20

11:25 am-1:25 pm

3 stops32h 00m

$589

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Fri 5/8

9:00 pm-11:00 am

1 stop32h 00m

Lisbon Humberto Delgado

Mon 5/18

11:25 am-9:45 pm

1 stop16h 20m

$594

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Wed 3/18

10:30 am-3:25 pm

2 stops23h 55m

Porto

Tue 3/31

11:45 am-9:42 am

2 stops27h 57m

$597

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 1/14

7:30 am-7:40 am

2 stops18h 10m

Porto

Wed 1/28

12:25 pm-5:30 am

1 stop23h 05m

$599

DallasPorto

DAL - OPO

DALOPO

Dallas Love Field

Wed 3/18

3:55 pm-3:25 pm

2 stops18h 30m

Porto

Mon 3/30

4:20 pm-5:54 pm

2 stops31h 34m

$615

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/18

9:10 am-7:40 am

2 stops17h 30m

Porto

Thu 4/9

8:20 am-9:50 pm

2 stops19h 30m

$640

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 $587, 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.

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

According to our data, Tuesday is the cheapest day to fly to Portugal from Dallas. The lowest ticket price found for a Tuesday departure recently was $767. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $879.

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

Our most recent data shows that the best time of day to fly to Portugal is in the afternoon. Flights from Dallas to Portugal during this time can be as low as $789. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $891 per ticket.

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 $728 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 $671 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	10h 20m
Direct flights	None

The fastest flight from Dallas to Portugal takes 10h 20m

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 December 2025, 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
British Airways	PriceFrom $523	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
Delta	PriceFrom $529	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
Iberia	PriceFrom $537	Free Cancellation	Rating 7.0 3,045 reviews	Search Iberia flights
Finnair	PriceFrom $537	Free Cancellation	Rating 7.6 1,334 reviews	Search Finnair flights
United Airlines	PriceFrom $537	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
American Airlines	PriceFrom $538	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
Air France	PriceFrom $551	Free Cancellation	Rating 7.4 1,504 reviews	Search Air France flights
Air Canada	PriceFrom $566	Free Cancellation	Rating 7.1 10,516 reviews	Search Air Canada flights
KLM	PriceFrom $572	Free Cancellation	Rating 7.7 1,432 reviews	Search KLM flights
Virgin Atlantic	PriceFrom $608	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic 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.