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

Air Canada, United Airlines, and KLM are the most popular carriers operating from Dallas to Portugal

What airlines fly to Portugal?

British Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Portugal from Dallas according to our data. British Airways is the first choice among our users, with 29% 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 September 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.

$221 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

7:00 am - 9:45 amDFW-OPO

20h 45m1 stop

12:35 pm - 11:59 pmOPO-DFW

17h 24m1 stop

$535United Airlines

Find Deal

lun., oct. 20 - mié., nov. 5

5:35 pm - 9:30 amDFW-OPO

10h 55m1 stop

6:00 am - 8:04 pmOPO-DFW

19h 04m2 stops

$540United Airlines

Find Deal

lun., mar. 9 - mar., mar. 17

1:55 pm - 11:45 amDFW-OPO

15h 50m1 stop

8:20 am - 9:35 pmOPO-DFW

19h 15m2 stops

$554Iberia

Find Deal

mar., dic. 2 - mar., dic. 16

5:35 pm - 4:00 pmDFW-OPO

16h 25m2 stops

8:20 am - 9:35 pmOPO-DFW

19h 15m2 stops

$558Iberia

Find Deal

mar., dic. 2 - mar., dic. 16

1:55 pm - 7:40 amDFW-OPO

11h 45m1 stop

8:20 am - 4:30 pmOPO-DFW

14h 10m1 stop

$564British Airways

Find Deal

mar., dic. 2 - mar., dic. 16

4:05 pm - 11:20 amDFW-LIS

13h 15m1 stop

5:30 am - 2:00 pmLIS-DFW

14h 30m1 stop

$579Delta

Find Deal

mié., nov. 12 - dom., nov. 23

4:05 pm - 5:30 pmDFW-LIS

19h 25m1 stop

5:00 am - 7:11 pmLIS-DFW

20h 11m2 stops

$583Delta

Find Deal

vie., nov. 7 - sáb., nov. 15

2:55 pm - 7:40 amDFW-LIS

11h 45m1 stop

6:30 am - 4:55 pmLIS-DFW

16h 25m1 stop

$591British Airways

Find Deal

jue., oct. 30 - mié., nov. 12

2:55 pm - 4:00 pmDFW-OPO

20h 05m1 stop

8:20 am - 11:25 pmOPO-DFW

21h 05m2 stops

$604American Airlines

Find Deal

jue., oct. 30 - jue., nov. 6

12:19 pm - 7:40 amDFW-OPO

14h 21m2 stops

8:20 am - 7:28 pmOPO-DFW

17h 08m2 stops

$608American Airlines

Find Deal

jue., oct. 30 - jue., nov. 6

Lufthansa flights from Dallas to Portugal

Our best Lufthansa deals on Dallas to Portugal flight tickets

Lufthansa

Oct 31

DFW7:25 pmDallas/Fort Worth

22h 25m

2 stops

LIS10:50 pmLisbon Humberto Delgado

Nov 11

LIS5:00 amLisbon Humberto Delgado

15h 25m

1 stop

DFW2:25 pmDallas/Fort Worth

$576

Find similar

Lufthansa

Nov 2

DFW4:15 pmDallas/Fort Worth

25h 15m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Nov 26

LIS2:10 pmLisbon Humberto Delgado

30h 15m

2 stops

DFW2:25 pmDallas/Fort Worth

$581

Find similar

Lufthansa

Oct 16

DFW3:50 pmDallas/Fort Worth

24h 15m

1 stop

LIS10:05 pmLisbon Humberto Delgado

Oct 21

LIS5:05 amLisbon Humberto Delgado

15h 00m

1 stop

DFW2:05 pmDallas/Fort Worth

$585

Find similar

American Airlines flights from Dallas to Portugal

Our best American Airlines deals on Dallas to Portugal flight tickets

American Airlines

Oct 30

DFW2:55 pmDallas/Fort Worth

20h 05m

1 stop

OPO4:00 pmPorto

Nov 6

OPO8:20 amPorto

21h 05m

2 stops

DFW11:25 pmDallas/Fort Worth

$604

Find similar

American Airlines

Oct 30

DFW12:19 pmDallas/Fort Worth

14h 21m

2 stops

OPO7:40 amPorto

Nov 6

OPO8:20 amPorto

17h 08m

2 stops

DFW7:28 pmDallas/Fort Worth

$608

Find similar

American Airlines

Jan 4

DFW3:45 pmDallas/Fort Worth

14h 20m

1 stop

LIS12:05 pmLisbon Humberto Delgado

Jan 17

LIS10:30 amLisbon Humberto Delgado

15h 30m

2 stops

DFW8:00 pmDallas/Fort Worth

$625

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

lun. 10/20

7:00 am-9:45 am

1 stop20h 45m

Porto

mié. 11/5

12:35 pm-11:59 pm

1 stop17h 24m

$535

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

lun. 3/9

5:35 pm-9:30 am

1 stop10h 55m

Porto

mar. 3/17

6:00 am-8:04 pm

2 stops19h 04m

$540

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

mar. 12/2

1:55 pm-11:45 am

1 stop15h 50m

Porto

mar. 12/16

8:20 am-9:35 pm

2 stops19h 15m

$554

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

mar. 12/2

5:35 pm-4:00 pm

2 stops16h 25m

Porto

mar. 12/16

8:20 am-9:35 pm

2 stops19h 15m

$558

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

mar. 12/2

1:55 pm-7:40 am

1 stop11h 45m

Porto

mar. 12/16

8:20 am-4:30 pm

1 stop14h 10m

$564

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

mié. 11/12

4:05 pm-11:20 am

1 stop13h 15m

Lisbon Humberto Delgado

dom. 11/23

5:30 am-2:00 pm

1 stop14h 30m

$579

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

vie. 11/7

4:05 pm-5:30 pm

1 stop19h 25m

Lisbon Humberto Delgado

sáb. 11/15

5:00 am-7:11 pm

2 stops20h 11m

$583

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

jue. 10/30

2:55 pm-7:40 am

1 stop11h 45m

Lisbon Humberto Delgado

mié. 11/12

6:30 am-4:55 pm

1 stop16h 25m

$591

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

jue. 10/30

2:55 pm-4:00 pm

1 stop20h 05m

Porto

jue. 11/6

8:20 am-11:25 pm

2 stops21h 05m

$604

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

jue. 10/30

12:19 pm-7:40 am

2 stops14h 21m

Porto

jue. 11/6

8:20 am-7:28 pm

2 stops17h 08m

$608

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 $597, 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 $620.

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 $741 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 $658 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

Direct flights	None

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 September 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
Finnair	PriceFrom $531	Free Cancellation	Rating 7.6 1,324 reviews	Search Finnair flights
Delta	PriceFrom $534	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
British Airways	PriceFrom $539	Free Cancellation	Rating 6.7 7,363 reviews	Search British Airways flights
American Airlines	PriceFrom $539	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Virgin Atlantic	PriceFrom $546	Free Cancellation	Rating 7.4 664 reviews	Search Virgin Atlantic flights
Iberia	PriceFrom $555	Free Cancellation	Rating 7.0 2,924 reviews	Search Iberia flights
United Airlines	PriceFrom $566	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights
Air France	PriceFrom $571	Free Cancellation	Rating 7.4 1,468 reviews	Search Air France flights
KLM	PriceFrom $572	Free Cancellation	Rating 7.8 1,386 reviews	Search KLM flights
Air Canada	PriceFrom $592	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada 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.