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

British Airways, Turkish Airlines, and American Airlines are the most popular carriers operating from Portugal to Houston

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

Prices for flights from Portugal to Houston are refreshed on a daily basis.

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

There are 2 operators available for flights from Portugal to Houston as of November 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portugal to Houston.

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

The necessary travel and health documents for your Houston trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$401 Cheap Flights from Portugal to Houston in 2025/26

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Recent round-trip flight deals from Portugal to Houston

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3:25 pm - 7:05 pmLIS-IAH

33h 40m2 stops

5:00 am - 11:45 amIAH-LIS

24h 45m2 stops

$731Multiple Airlines

Find Deal

Sat, Nov 22 - Fri, Dec 5

5:30 am - 9:12 pmLIS-IAH

21h 42m2 stops

8:30 pm - 11:20 amIAH-LIS

32h 50m3 stops

$743Multiple Airlines

Find Deal

Sat, Nov 22 - Fri, Dec 5

5:00 am - 6:15 pmLIS-IAH

19h 15m1 stop

6:55 pm - 3:00 pmIAH-LIS

14h 05m1 stop

$798Lufthansa

Find Deal

Sun, Nov 23 - Sat, Dec 6

5:00 am - 6:15 pmLIS-IAH

19h 15m1 stop

12:10 pm - 9:20 amIAH-LIS

15h 10m1 stop

$816United Airlines

Find Deal

Sun, Nov 23 - Thu, Dec 4

5:00 am - 6:15 pmLIS-IAH

19h 15m1 stop

4:50 pm - 1:20 pmIAH-LIS

14h 30m1 stop

$818United Airlines

Find Deal

Sun, Nov 23 - Fri, Dec 5

5:00 am - 9:44 pmLIS-IAH

22h 44m2 stops

12:10 pm - 2:50 pmIAH-LIS

20h 40m2 stops

$830Air Canada

Find Deal

Thu, Jan 15 - Mon, Jan 19

5:00 am - 9:44 pmLIS-IAH

22h 44m2 stops

12:10 pm - 2:50 pmIAH-LIS

20h 40m2 stops

$832Air Canada

Find Deal

Thu, Jan 15 - Mon, Jan 19

5:00 am - 5:02 pmLIS-IAH

18h 02m2 stops

4:50 pm - 11:30 pmIAH-LIS

24h 40m1 stop

$842Lufthansa

Find Deal

Sun, Nov 23 - Wed, Dec 3

10:55 am - 10:46 pmLIS-HOU

17h 51m2 stops

12:47 pm - 9:05 amHOU-LIS

14h 18m2 stops

$852American Airlines

Find Deal

Thu, Jan 15 - Mon, Jan 19

10:55 am - 10:46 pmLIS-HOU

17h 51m2 stops

12:47 pm - 9:05 amHOU-LIS

14h 18m2 stops

$855American Airlines

Find Deal

Thu, Jan 15 - Mon, Jan 19

American Airlines flights from Portugal to Houston

Our best American Airlines deals on Portugal to Houston flight tickets

American Airlines

Jan 15

LIS10:55 amLisbon Humberto Delgado

17h 51m

2 stops

HOU10:46 pmHouston Hobby

Jan 19

HOU12:47 pmHouston Hobby

14h 18m

2 stops

LIS9:05 amLisbon Humberto Delgado

$852

Find similar

American Airlines

Jan 15

LIS10:55 amLisbon Humberto Delgado

17h 51m

2 stops

HOU10:46 pmHouston Hobby

Jan 19

HOU12:47 pmHouston Hobby

14h 18m

2 stops

LIS9:05 amLisbon Humberto Delgado

$855

Find similar

American Airlines

Dec 23

LIS11:05 amLisbon Humberto Delgado

18h 41m

2 stops

HOU11:46 pmHouston Hobby

Dec 30

HOU12:09 pmHouston Hobby

14h 56m

2 stops

LIS9:05 amLisbon Humberto Delgado

$863

Find similar

Delta flights from Portugal to Houston

Our best Delta deals on Portugal to Houston flight tickets

Delta

Nov 23

LIS5:00 amLisbon Humberto Delgado

18h 53m

2 stops

HOU5:53 pmHouston Hobby

Dec 6

HOU6:40 pmHouston Hobby

16h 50m

2 stops

LIS5:30 pmLisbon Humberto Delgado

$854

Find similar

Delta

Nov 23

LIS5:00 amLisbon Humberto Delgado

24h 07m

2 stops

HOU11:07 pmHouston Hobby

Dec 3

HOU10:39 amHouston Hobby

16h 01m

2 stops

LIS8:40 amLisbon Humberto Delgado

$858

Find similar

Delta

Dec 15

LIS5:00 amLisbon Humberto Delgado

23h 48m

2 stops

HOU10:48 pmHouston Hobby

Dec 30

HOU6:40 pmHouston Hobby

16h 50m

2 stops

LIS5:30 pmLisbon Humberto Delgado

$862

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 11/22

3:25 pm-7:05 pm

2 stops33h 40m

Houston George Bush Intcntl

Fri 12/5

5:00 am-11:45 am

2 stops24h 45m

$731

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sat 11/22

5:30 am-9:12 pm

2 stops21h 42m

Houston George Bush Intcntl

Fri 12/5

8:30 pm-11:20 am

3 stops32h 50m

$743

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 11/23

5:00 am-6:15 pm

1 stop19h 15m

Houston George Bush Intcntl

Sat 12/6

6:55 pm-3:00 pm

1 stop14h 05m

$798

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 11/23

5:00 am-6:15 pm

1 stop19h 15m

Houston George Bush Intcntl

Thu 12/4

12:10 pm-9:20 am

1 stop15h 10m

$816

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 11/23

5:00 am-6:15 pm

1 stop19h 15m

Houston George Bush Intcntl

Fri 12/5

4:50 pm-1:20 pm

1 stop14h 30m

$818

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

5:00 am-9:44 pm

2 stops22h 44m

Houston George Bush Intcntl

Mon 1/19

12:10 pm-2:50 pm

2 stops20h 40m

$830

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

5:00 am-9:44 pm

2 stops22h 44m

Houston George Bush Intcntl

Mon 1/19

12:10 pm-2:50 pm

2 stops20h 40m

$832

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 11/23

5:00 am-5:02 pm

2 stops18h 02m

Houston George Bush Intcntl

Wed 12/3

4:50 pm-11:30 pm

1 stop24h 40m

$842

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Thu 1/15

10:55 am-10:46 pm

2 stops17h 51m

Houston Hobby

Mon 1/19

12:47 pm-9:05 am

2 stops14h 18m

$852

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Thu 1/15

10:55 am-10:46 pm

2 stops17h 51m

Houston Hobby

Mon 1/19

12:47 pm-9:05 am

2 stops14h 18m

$855

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 Portugal to Houston

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 Houston?

The month of February is, on average, the cheapest month to fly to Houston from Portugal, with most prices found around $794. The month of September is another great option to travel to Houston, with average flight prices from Portugal averaging around $813.

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

On average, the least expensive day to fly to Houston from Portugal is on a Friday. momondo users have found tickets for Friday departures for as low as $795. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Wednesday is $865.

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

Our data shows that the cheapest Portugal to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $790. Try not to purchase tickets in the morning because they tend to be around $902. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Portugal to Houston flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Portugal to Houston?
Prices for flights from Portugal to Houston are refreshed on a daily basis.
How many operators does momondo search for flights from Portugal to Houston?
There are 2 operators available for flights from Portugal to Houston as of November 2025.
How old do you have to be to fly from Portugal to Houston?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portugal to Houston.
What documentation or ID do you need to fly to Houston?
The necessary travel and health documents for your Houston trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portugal to Houston

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $675	Free Cancellation	Rating 7.2 11,047 reviews		Search American Airlines flights
United Airlines	PriceFrom $767	Free Cancellation	Rating 7.4 9,010 reviews		Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portugal to Houston. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Houston from Portugal with this policy.

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

momondo helps you find the best flight between Portugal and Houston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Houston from Portugal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.