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

United Airlines, British Airways, and American Airlines are the most popular carriers operating from Texas to Portugal

How long is the flight from Texas to Portugal?

Average flight duration from Texas to Portugal depends on which airport you fly into and out of. Flying from Dallas to Lisbon is 10h 35m on average, while flying from Houston to Lisbon is 11h 31m on average. Lisbon is the most popular airport in 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 Texas according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 13 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 Texas to Portugal?

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

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

The number of operators available for flights from Texas to Portugal is 13 as of August 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Texas to Portugal.

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

The required travel and health documents for your Portugal 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 Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$224 Cheap Flights from Texas to Portugal in 2026

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Find the cheapest flights from Texas to Portugal

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11:50 am - 6:55 amIAH Houston George Bush Intcntl-LIS Lisbon Humberto Delgado

13h 05m1 stop Montreal Pierre Elliott Trudeau Intl

5:00 am - 2:00 pmLIS Lisbon Humberto Delgado-IAH Houston George Bush Intcntl

15h 00m1 stop Frankfurt am Main

$698Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

11:50 am - 12:50 pmIAH Houston George Bush Intcntl-OPO Porto

19h 00m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

6:00 am - 12:30 amOPO Porto-IAH Houston George Bush Intcntl

24h 30m2 stops Frankfurt am Main Chicago O'Hare Intl

$701Multiple Airlines

Sun, Nov 8 - Fri, Nov 13

11:00 am - 9:30 amIAH Houston George Bush Intcntl-OPO Porto

16h 30m1 stop Newark

6:00 am - 6:15 pmOPO Porto-IAH Houston George Bush Intcntl

18h 15m1 stop Frankfurt am Main

$707United Airlines

Mon, Dec 7 - Fri, Dec 11

7:10 pm - 10:00 pmIAH Houston George Bush Intcntl-OPO Porto

20h 50m1 stop Paris Charles de Gaulle

5:00 am - 1:05 pmOPO Porto-IAH Houston George Bush Intcntl

14h 05m1 stop Amsterdam Schiphol

$709KLM

Sun, Nov 8 - Fri, Nov 13

4:10 pm - 11:45 amIAH Houston George Bush Intcntl-OPO Porto

13h 35m1 stop Frankfurt am Main

6:00 am - 7:10 pmOPO Porto-IAH Houston George Bush Intcntl

19h 10m2 stops Frankfurt am Main Chicago O'Hare Intl

$710Lufthansa

Sun, Nov 8 - Fri, Nov 13

9:45 am - 9:30 amIAH Houston George Bush Intcntl-OPO Porto

17h 45m2 stops Washington, D.C. Reagan-National Newark

6:00 am - 6:15 pmOPO Porto-IAH Houston George Bush Intcntl

18h 15m1 stop Frankfurt am Main

$711United Airlines

Mon, Dec 7 - Fri, Dec 11

4:10 pm - 2:50 pmIAH Houston George Bush Intcntl-LIS Lisbon Humberto Delgado

16h 40m1 stop Frankfurt am Main

5:00 am - 2:00 pmLIS Lisbon Humberto Delgado-IAH Houston George Bush Intcntl

15h 00m1 stop Frankfurt am Main

$716Lufthansa

Wed, Nov 11 - Wed, Nov 18

9:40 pm - 5:40 pmIAH Houston George Bush Intcntl-LIS Lisbon Humberto Delgado

14h 00m1 stop London Heathrow

11:05 am - 10:30 pmLIS Lisbon Humberto Delgado-IAH Houston George Bush Intcntl

17h 25m1 stop Philadelphia

$717British Airways

Tue, Jan 19 - Tue, Jan 26

6:55 pm - 9:55 pmAUS Austin Bergstrom-LIS Lisbon Humberto Delgado

21h 00m1 stop London Heathrow

6:35 pm - 4:45 pmLIS Lisbon Humberto Delgado-AUS Austin Bergstrom

28h 10m1 stop London Heathrow

$727British Airways

Mon, Feb 1 - Mon, Feb 15

6:01 pm - 3:25 pmAUS Austin Bergstrom-OPO Porto

15h 24m1 stop Amsterdam Schiphol

5:00 am - 4:05 pmOPO Porto-AUS Austin Bergstrom

17h 05m1 stop Amsterdam Schiphol

$737KLM

Mon, Nov 23 - Thu, Dec 3

Cheap last minute flights

Enter your travel dates to find the best prices.

9:30 pm - 3:40 pmDFW Dallas/Fort Worth-OPO Porto

36h 10m1 stop Istanbul

6:10 am - 7:35 pmOPO Porto-DFW Dallas/Fort Worth

19h 25m1 stop Istanbul

$825Turkish Airlines

Thu, Aug 13 - Thu, Aug 27

9:30 pm - 11:30 pmDFW Dallas/Fort Worth-OPO Porto

20h 00m1 stop Istanbul

4:40 pm - 12:45 pmOPO Porto-DFW Dallas/Fort Worth

26h 05m1 stop Istanbul

$830Turkish Airlines

Thu, Aug 13 - Thu, Aug 27

4:00 pm - 3:35 pmDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

17h 35m1 stop Frankfurt am Main

5:05 am - 2:15 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

15h 10m1 stop Frankfurt am Main

$837Lufthansa

Wed, Aug 12 - Fri, Aug 21

4:00 pm - 3:35 pmDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

17h 35m1 stop Frankfurt am Main

4:25 pm - 2:15 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

27h 50m1 stop Frankfurt am Main

$952Lufthansa

Wed, Aug 12 - Wed, Aug 19

10:00 am - 7:00 amIAH Houston George Bush Intcntl-OPO Porto

15h 00m1 stop Montreal Pierre Elliott Trudeau Intl

11:20 am - 1:36 pmOPO Porto-IAH Houston George Bush Intcntl

32h 16m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$963United Airlines

Wed, Aug 12 - Wed, Aug 26

10:00 am - 7:00 amIAH Houston George Bush Intcntl-OPO Porto

15h 00m1 stop Montreal Pierre Elliott Trudeau Intl

11:20 am - 1:18 pmOPO Porto-IAH Houston George Bush Intcntl

31h 58m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Reagan-National

$963United Airlines

Wed, Aug 12 - Wed, Aug 26

2:35 pm - 9:05 amDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

12h 30m2 stops Cincinnati Cinci./N. Kentucky Philadelphia

8:25 am - 8:10 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

17h 45m1 stop Madrid Barajas

$973American Airlines

Wed, Aug 12 - Fri, Aug 21

1:24 pm - 2:55 pmDFW Dallas/Fort Worth-LIS Lisbon Humberto Delgado

19h 31m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

5:00 am - 10:31 pmLIS Lisbon Humberto Delgado-DFW Dallas/Fort Worth

23h 31m2 stops Amsterdam Schiphol Minneapolis St Paul

$979Delta

Wed, Aug 12 - Fri, Aug 21

1:13 pm - 3:25 pmHOU Houston Hobby-OPO Porto

20h 12m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 10:05 pmOPO Porto-HOU Houston Hobby

23h 05m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$981Delta

Wed, Aug 12 - Wed, Aug 26

12:14 pm - 9:05 amHOU Houston Hobby-LIS Lisbon Humberto Delgado

14h 51m2 stops Dallas/Fort Worth Philadelphia

8:25 am - 7:51 pmLIS Lisbon Humberto Delgado-HOU Houston Hobby

17h 26m2 stops Madrid Barajas Dallas/Fort Worth

$1,141American Airlines

Fri, Aug 14 - Fri, Aug 21

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British Airways flights from Texas to Portugal

Our best British Airways deals on Texas to Portugal flight tickets

British Airways

Feb 1

AUS6:55 pmAustin Bergstrom

21h 00m

1 stop

LIS9:55 pmLisbon Humberto Delgado

Feb 15

LIS6:35 pmLisbon Humberto Delgado

28h 10m

1 stop

AUS4:45 pmAustin Bergstrom

$727

British Airways

Nov 1

DFW1:29 pmDallas/Fort Worth

16h 36m

2 stops

LIS12:05 pmLisbon Humberto Delgado

Nov 11

LIS10:40 amLisbon Humberto Delgado

19h 08m

2 stops

DFW11:48 pmDallas/Fort Worth

$821

British Airways

Aug 12

IAH9:05 pmHouston George Bush Intcntl

14h 50m

1 stop

LIS5:55 pmLisbon Humberto Delgado

Aug 20

LIS7:20 amLisbon Humberto Delgado

18h 00m

1 stop

IAH7:20 pmHouston George Bush Intcntl

$1,079

Iberia flights from Texas to Portugal

Our best Iberia deals on Texas to Portugal flight tickets

Iberia

Feb 1

AUS1:15 pmAustin Bergstrom

13h 50m

1 stop

LIS9:05 amLisbon Humberto Delgado

Feb 15

LIS8:45 pmLisbon Humberto Delgado

30h 42m

2 stops

AUS9:27 pmAustin Bergstrom

$728

Iberia

Feb 1

AUS2:49 pmAustin Bergstrom

19h 16m

2 stops

LIS4:05 pmLisbon Humberto Delgado

Feb 15

LIS8:45 pmLisbon Humberto Delgado

30h 42m

2 stops

AUS9:27 pmAustin Bergstrom

$735

Iberia

Nov 12

AUS2:16 pmAustin Bergstrom

12h 49m

1 stop

LIS9:05 amLisbon Humberto Delgado

Nov 17

LIS6:30 amLisbon Humberto Delgado

21h 26m

2 stops

AUS9:56 pmAustin Bergstrom

$766

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HoustonLisbon

IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado

IAHLIS

Houston George Bush Intcntl

Wed 11/11

11:50 am-6:55 am

1 stop13h 05m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-2:00 pm

1 stop15h 00m

$698

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Sun 11/8

11:50 am-12:50 pm

2 stops19h 00m

Porto

Fri 11/13

6:00 am-12:30 am

2 stops24h 30m

$701

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Mon 12/7

11:00 am-9:30 am

1 stop16h 30m

Porto

Fri 12/11

6:00 am-6:15 pm

1 stop18h 15m

$707

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Sun 11/8

7:10 pm-10:00 pm

1 stop20h 50m

Porto

Fri 11/13

5:00 am-1:05 pm

1 stop14h 05m

$709

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Sun 11/8

4:10 pm-11:45 am

1 stop13h 35m

Porto

Fri 11/13

6:00 am-7:10 pm

2 stops19h 10m

$710

HoustonPorto

IAH Houston George Bush Intcntl - OPO Porto

IAHOPO

Houston George Bush Intcntl

Mon 12/7

9:45 am-9:30 am

2 stops17h 45m

Porto

Fri 12/11

6:00 am-6:15 pm

1 stop18h 15m

$711

HoustonLisbon

IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado

IAHLIS

Houston George Bush Intcntl

Wed 11/11

4:10 pm-2:50 pm

1 stop16h 40m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-2:00 pm

1 stop15h 00m

$716

HoustonLisbon

IAH Houston George Bush Intcntl - LIS Lisbon Humberto Delgado

IAHLIS

Houston George Bush Intcntl

Tue 1/19

9:40 pm-5:40 pm

1 stop14h 00m

Lisbon Humberto Delgado

Tue 1/26

11:05 am-10:30 pm

1 stop17h 25m

$717

AustinLisbon

AUS Austin Bergstrom - LIS Lisbon Humberto Delgado

AUSLIS

Austin Bergstrom

Mon 2/1

6:55 pm-9:55 pm

1 stop21h 00m

Lisbon Humberto Delgado

Mon 2/15

6:35 pm-4:45 pm

1 stop28h 10m

$727

AustinPorto

AUS Austin Bergstrom - OPO Porto

AUSOPO

Austin Bergstrom

Mon 11/23

6:01 pm-3:25 pm

1 stop15h 24m

Porto

Thu 12/3

5:00 am-4:05 pm

1 stop17h 05m

$737

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 Texas 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

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Texas is in February. Flight prices, which tend to average around $688, 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 Texas during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $694.

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

You are more likely to see cheaper flights to Portugal from Texas when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $805 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Texas for as low as $669 on momondo.

Can stopping save me money on Texas to Portugal flights?

You could potentially save up to 16% on your flight if you consider stops on a Texas to Portugal flight.

Cheap Texas to Portugal flight deals and tips

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

Fastest flight time	10h 35m
Direct flights	None

The fastest flight from Texas to Portugal takes 10h 35m

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

Search flight deals

Frequently asked questions about flying from Texas to Portugal

When did momondo last update prices for flights from Texas to Portugal?
Prices for flights from Texas to Portugal were last updated today.
How many operators does momondo search for flights from Texas to Portugal?
The number of operators available for flights from Texas to Portugal is 13 as of August 2026.
How old do you have to be to fly from Texas to Portugal?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Texas to Portugal.
What documentation or ID do you need to fly to Portugal?
The required travel and health documents for your Portugal 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 Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Texas to Portugal

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

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $360	Free Cancellation	Rating 7.5 694 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom $445	Free Cancellation	Rating 6.7 8,155 reviews	Search British Airways flights
Lufthansa	PriceFrom $460	Free Cancellation	Rating 6.8 8,176 reviews	Search Lufthansa flights
KLM	PriceFrom $476	Free Cancellation	Rating 7.8 1,555 reviews	Search KLM flights
Delta	PriceFrom $478	Free Cancellation	Rating 7.8 8,506 reviews	Search Delta flights
Iberia	PriceFrom $493	Free Cancellation	Rating 7.0 3,262 reviews	Search Iberia flights
American Airlines	PriceFrom $502	Free Cancellation	Rating 7.1 11,900 reviews	Search American Airlines flights
Air France	PriceFrom $512	Free Cancellation	Rating 7.5 1,640 reviews	Search Air France flights
Finnair	PriceFrom $518	Free Cancellation	Rating 7.7 1,428 reviews	Search Finnair flights
United Airlines	PriceFrom $539	Free Cancellation	Rating 7.4 10,101 reviews	Search United Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Texas to Portugal for you.

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

momondo does allow users to show only those flights to Portugal from Texas which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Texas to Portugal flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Texas to Portugal flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Portugal trip

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Popular cities in Portugal

Flights to Lisbonfrom $552

Flights to Portofrom $514

Flights to Funchalfrom $605

Flights to Farofrom $626

Flights to Ponta Delgadafrom $575

Flights to Lajesfrom $605

Flights to Hortafrom $670

Flights to Pico Islandfrom $668

Flights to Porto Santofrom $713

Flights to Velasfrom $690

Cheap flights from Texas to Portugal from $224

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Texas to Portugal departing on 10/17. 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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British Airways flights from Texas to Portugal

Our best British Airways deals on Texas to Portugal flight tickets

Iberia flights from Texas to Portugal

Our best Iberia deals on Texas to Portugal flight tickets

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See travel insights to Portugal from

How to get the cheapest flight ticket from Texas to Portugal

What is the cheapest month to fly to Portugal?

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

Can stopping save me money on Texas to Portugal flights?

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

What airlines fly to Portugal?

How long is the flight from Texas to Portugal?

Cheap Texas to Portugal flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Texas to Portugal

Best airlines flying from Texas to Portugal

Compare and see reviews for airlines that fly from Texas 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

Texas flight routes

According to popular flight searches on momondo this year

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