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

United Airlines, Delta, and Iberia are the most popular carriers operating from Dallas to Portugal

What airlines fly to Portugal?

United Airlines, American Airlines and British Airways 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 34% 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 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.

$321 Cheap Flights from Dallas to Portugal in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

5:25 pm - 11:45 amDFW Dallas/Fort Worth-OPO Porto

12h 20m1 stop Madrid Barajas

12:25 pm - 5:30 amOPO Porto-DFW Dallas/Fort Worth

23h 05m1 stop Madrid Barajas

$563Iberia

Wed, Feb 24 - Mon, Mar 1

12:36 pm - 11:45 amDFW Dallas/Fort Worth-OPO Porto

17h 09m2 stops New York John F Kennedy Intl Madrid Barajas

8:40 pm - 5:30 amOPO Porto-DFW Dallas/Fort Worth

14h 50m1 stop Madrid Barajas

$567Iberia

Wed, Feb 24 - Mon, Mar 1

3:05 pm - 11:55 amDFW Dallas/Fort Worth-OPO Porto

14h 50m1 stop London Heathrow

8:40 pm - 5:30 amOPO Porto-DFW Dallas/Fort Worth

14h 50m1 stop Madrid Barajas

$575Multiple Airlines

Mon, Oct 19 - Wed, Nov 4

3:50 pm - 8:00 pmDFW Dallas/Fort Worth-OPO Porto

22h 10m1 stop Madrid Barajas

8:20 am - 5:35 pmOPO Porto-DFW Dallas/Fort Worth

15h 15m1 stop Madrid Barajas

$576Multiple Airlines

Mon, Nov 9 - Tue, Nov 17

8:30 am - 7:40 amDFW Dallas/Fort Worth-OPO Porto

17h 10m2 stops Charlotte Douglas Madrid Barajas

12:25 pm - 5:30 amOPO Porto-DFW Dallas/Fort Worth

23h 05m1 stop Madrid Barajas

$580American Airlines

Mon, Oct 19 - Wed, Nov 4

7:00 am - 9:30 amDFW Dallas/Fort Worth-OPO Porto

20h 30m2 stops Chicago O'Hare Intl Newark

12:35 pm - 8:43 pmOPO Porto-DFW Dallas/Fort Worth

14h 08m1 stop Newark

$585United Airlines

Mon, Nov 16 - Tue, Dec 8

6:38 am - 9:30 amDFW Dallas/Fort Worth-OPO Porto

20h 52m1 stop Newark

12:35 pm - 8:43 pmOPO Porto-DFW Dallas/Fort Worth

14h 08m1 stop Newark

$585United Airlines

Tue, Dec 1 - Thu, Dec 10

1:50 pm - 11:45 amDFW Dallas/Fort Worth-OPO Porto

15h 55m1 stop Madrid Barajas

8:20 am - 8:52 pmOPO Porto-DFW Dallas/Fort Worth

18h 32m2 stops Madrid Barajas Chicago O'Hare Intl

$586American Airlines

Tue, Dec 1 - Thu, Dec 10

6:12 am - 10:30 amDAL Dallas Love Field-OPO Porto

22h 18m2 stops Atlanta Hartsfield-Jackson New York LaGuardia

5:55 am - 6:05 pmOPO Porto-DAL Dallas Love Field

18h 10m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$604Delta

Mon, Oct 19 - Wed, Nov 4

2:09 pm - 3:10 pmDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

19h 01m2 stops New York LaGuardia Paris Charles de Gaulle

11:30 am - 12:17 amLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

18h 47m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$720Delta

Mon, Nov 16 - Wed, Nov 25

Cheap last minute flights

Enter your travel dates to find the best prices.

9:35 am - 9:05 amDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

17h 30m1 stop Philadelphia

6:45 pm - 5:05 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

28h 20m1 stop London Heathrow

$774British Airways

Sun, Sep 20 - Thu, Oct 1

8:10 am - 8:50 amDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

18h 40m2 stops New York John F Kennedy Intl Paris Charles de Gaulle

5:35 am - 9:05 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

21h 30m2 stops Paris Charles de Gaulle New York John F Kennedy Intl

$829Delta

Mon, Sep 21 - Tue, Sep 29

12:25 pm - 6:50 pmDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

24h 25m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat

4:05 pm - 9:34 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

35h 29m3 stops Madrid Barajas Barcelona-El Prat Montreal Pierre Elliott Trudeau Intl

$913Multiple Airlines

Wed, Sep 23 - Tue, Sep 29

4:00 pm - 10:15 pmDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

24h 15m1 stop Frankfurt am Main

5:05 am - 1:35 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

14h 30m1 stop Frankfurt am Main

$947Lufthansa

Mon, Sep 21 - Fri, Sep 25

12:25 pm - 9:20 amDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

14h 55m1 stop Montreal Pierre Elliott Trudeau Intl

5:05 am - 1:35 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

14h 30m1 stop Frankfurt am Main

$960Multiple Airlines

Mon, Sep 21 - Tue, Sep 29

12:05 pm - 10:45 amDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

16h 40m1 stop Boston Logan Intl

5:35 am - 1:35 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

14h 00m1 stop Paris Charles de Gaulle

$972Delta

Mon, Sep 21 - Tue, Sep 29

4:00 pm - 10:15 pmDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

24h 15m1 stop Frankfurt am Main

12:35 pm - 1:35 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

31h 00m1 stop Frankfurt am Main

$1,011Lufthansa

Sun, Sep 20 - Tue, Sep 22

12:25 pm - 9:20 amDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

14h 55m1 stop Montreal Pierre Elliott Trudeau Intl

11:25 am - 6:25 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

37h 00m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,018United Airlines

Sun, Sep 20 - Tue, Sep 22

12:25 pm - 9:20 amDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

14h 55m1 stop Montreal Pierre Elliott Trudeau Intl

11:25 am - 4:29 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

35h 04m2 stops Montreal Pierre Elliott Trudeau Intl Denver Intl

$1,018United Airlines

Mon, Sep 21 - Fri, Sep 25

6:50 pm - 6:00 pmDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

17h 10m2 stops Charlotte Douglas London Heathrow

11:05 am - 11:21 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

18h 16m1 stop Philadelphia

$8,684British Airways

Fri, Sep 18 - Tue, Oct 6

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Finnair flights from Dallas to Portugal

Our best Finnair deals on Dallas to Portugal flight tickets

Finnair

Sep 30

DFW4:50 pmDallas/Fort Worth

17h 00m

1 stop

LIS3:50 pmLisbon Humberto Delgado

Oct 7

LIS6:35 amLisbon Humberto Delgado

19h 35m

1 stop

DFW8:10 pmDallas/Fort Worth

$750

Finnair

Sep 30

DFW4:50 pmDallas/Fort Worth

17h 00m

1 stop

LIS3:50 pmLisbon Humberto Delgado

Oct 13

LIS4:35 pmLisbon Humberto Delgado

28h 30m

1 stop

DFW3:05 pmDallas/Fort Worth

$756

Finnair

Sep 30

DFW4:50 pmDallas/Fort Worth

17h 00m

1 stop

LIS3:50 pmLisbon Humberto Delgado

Oct 11

LIS4:35 pmLisbon Humberto Delgado

28h 30m

1 stop

DFW3:05 pmDallas/Fort Worth

$815

United Airlines flights from Dallas to Portugal

Our best United Airlines deals on Dallas to Portugal flight tickets

United Airlines

Dec 1

DFW7:00 amDallas/Fort Worth

20h 30m

2 stops

OPO9:30 amPorto

Dec 10

OPO12:35 pmPorto

14h 08m

1 stop

DFW8:43 pmDallas/Fort Worth

$585

United Airlines

Dec 1

DFW12:20 pmDallas/Fort Worth

15h 10m

2 stops

OPO9:30 amPorto

Dec 10

OPO12:35 pmPorto

28h 35m

2 stops

DFW11:10 amDallas/Fort Worth

$589

United Airlines

Feb 28

DFW7:00 amDallas/Fort Worth

20h 30m

2 stops

OPO9:30 amPorto

Mar 16

OPO12:35 pmPorto

27h 09m

1 stop

DFW10:44 amDallas/Fort Worth

$596

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasPorto

DFW Dallas/Fort Worth - OPO Porto

DFWOPO

Dallas/Fort Worth

Wed 2/24

5:25 pm-11:45 am

1 stop12h 20m

Porto

Mon 3/1

12:25 pm-5:30 am

1 stop23h 05m

$563

DallasPorto

DFW Dallas/Fort Worth - OPO Porto

DFWOPO

Dallas/Fort Worth

Wed 2/24

12:36 pm-11:45 am

2 stops17h 09m

Porto

Mon 3/1

8:40 pm-5:30 am

1 stop14h 50m

$567

Quickest round-trip

DallasPorto

DFW Dallas/Fort Worth - OPO Porto

DFWOPO

Dallas/Fort Worth

Mon 10/19

3:05 pm-11:55 am

1 stop14h 50m

Porto

Wed 11/4

8:40 pm-5:30 am

1 stop14h 50m

$575

DallasPorto

DFW Dallas/Fort Worth - OPO Porto

DFWOPO

Dallas/Fort Worth

Mon 11/9

3:50 pm-8:00 pm

1 stop22h 10m

Porto

Tue 11/17

8:20 am-5:35 pm

1 stop15h 15m

$576

DallasPorto

DFW Dallas/Fort Worth - OPO Porto

DFWOPO

Dallas/Fort Worth

Mon 10/19

8:30 am-7:40 am

2 stops17h 10m

Porto

Wed 11/4

12:25 pm-5:30 am

1 stop23h 05m

$580

DallasPorto

DFW Dallas/Fort Worth - OPO Porto

DFWOPO

Dallas/Fort Worth

Mon 11/16

7:00 am-9:30 am

2 stops20h 30m

Porto

Tue 12/8

12:35 pm-8:43 pm

1 stop14h 08m

$585

DallasPorto

DFW Dallas/Fort Worth - OPO Porto

DFWOPO

Dallas/Fort Worth

Tue 12/1

6:38 am-9:30 am

1 stop20h 52m

Porto

Thu 12/10

12:35 pm-8:43 pm

1 stop14h 08m

$585

DallasPorto

DFW Dallas/Fort Worth - OPO Porto

DFWOPO

Dallas/Fort Worth

Tue 12/1

1:50 pm-11:45 am

1 stop15h 55m

Porto

Thu 12/10

8:20 am-8:52 pm

2 stops18h 32m

$586

DallasPorto

DAL Dallas Love Field - OPO Porto

DALOPO

Dallas Love Field

Mon 10/19

6:12 am-10:30 am

2 stops22h 18m

Porto

Wed 11/4

5:55 am-6:05 pm

2 stops18h 10m

$604

DallasLisbon

DFW Dallas/Fort Worth - LIS Lisbon Humberto Delgado

DFWLIS

Dallas/Fort Worth

Mon 11/16

2:09 pm-3:10 pm

2 stops19h 01m

Lisbon Humberto Delgado

Wed 11/25

11:30 am-12:17 am

2 stops18h 47m

$720

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 April. Flight prices, which tend to average around $660, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Portugal from Dallas during February instead. Flights to Portugal in February, while not as cheap as those in April, still average around $662.

How far in advance should I book a flight from Dallas 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 $818 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 $669 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

Best Price Found	$321
Fastest flight time	11h 15m
Direct flights	None

The best one-way flight to Portugal from Dallas in the past 72 hours is $321. The best round-trip flight deal from Dallas to Portugal found on momondo in the last 72 hours is $563.

The fastest flight from Dallas to Portugal takes 11h 15m

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

Search flight deals

Frequently asked questions about flying from Dallas to Portugal

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 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 $457	Free Cancellation	Rating 6.8 8,229 reviews	Search Lufthansa flights
Iberia	PriceFrom $493	Free Cancellation	Rating 7.0 3,249 reviews	Search Iberia flights
British Airways	PriceFrom $500	Free Cancellation	Rating 6.7 8,228 reviews	Search British Airways flights
American Airlines	PriceFrom $502	Free Cancellation	Rating 7.1 12,070 reviews	Search American Airlines flights
Delta	PriceFrom $517	Free Cancellation	Rating 7.8 8,576 reviews	Search Delta flights
Finnair	PriceFrom $518	Free Cancellation	Rating 7.6 1,430 reviews	Search Finnair flights
Air France	PriceFrom $518	Free Cancellation	Rating 7.5 1,650 reviews	Search Air France flights
United Airlines	PriceFrom $548	Free Cancellation	Rating 7.4 10,214 reviews	Search United Airlines flights
Air Canada	PriceFrom $557	Free Cancellation	Rating 7.1 11,639 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $612	Free Cancellation	Rating 7.4 1,984 reviews	Search Scandinavian Airlines 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.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Portugal

Popular cities

Other flights to Portugal

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $469

Flights to Portofrom $470

Flights to Funchalfrom $570

Flights to Farofrom $509

Flights to Ponta Delgadafrom $560

Flights to Lajesfrom $569

Flights to Hortafrom $570

Flights to Pico Islandfrom $570

Flights to Porto Santofrom $756

Flights to Velasfrom $593

Cheap flights from Dallas to Portugal from $321

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dallas to Portugal departing on 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Dallas to Portugal

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Finnair flights from Dallas to Portugal

Our best Finnair deals on Dallas to Portugal flight tickets

United Airlines flights from Dallas to Portugal

Our best United Airlines deals on Dallas to Portugal flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Dallas to Portugal that are best for you.

See travel insights to Portugal from

How to get the cheapest flight ticket from Dallas to Portugal

What is the cheapest month to fly to Portugal?

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

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

What airlines fly to Portugal?

Cheap Dallas to Portugal flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Dallas to Portugal

Best airlines flying from Dallas to Portugal

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

Why use momondo?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portugal

List of cabin classes available on flights landing in Portugal. Availability may vary depending on flight origin and airline.

Complete your trip to Portugal

Explore popular destinations other users love

According to popular flight searches on momondo this year