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Cheap flights from Portugal to Houston from $403

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Houston departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portugal to Houston

Recent round-trip flight deals from Portugal to Houston

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 am - 9:59 pm
LIS
-
IAH
20h 29m
2 stops
Multiple Airlines Logo
3:50 pm - 6:55 pm
IAH
-
LIS
21h 05m
1 stop
$889Multiple Airlines
Mon, Oct 26 - Mon, Nov 16
Multiple Airlines Logo
12:30 pm - 11:59 pm
LIS
-
IAH
17h 29m
2 stops
Multiple Airlines Logo
9:05 pm - 11:05 pm
IAH
-
LIS
20h 00m
1 stop
$890Multiple Airlines
Thu, Aug 27 - Thu, Sep 10
Multiple Airlines Logo
6:30 am - 9:59 pm
LIS
-
IAH
20h 29m
2 stops
Multiple Airlines Logo
4:32 pm - 2:55 pm
IAH
-
LIS
16h 23m
2 stops
$894Multiple Airlines
Mon, Oct 26 - Mon, Nov 16
Multiple Airlines Logo
12:30 pm - 11:59 pm
LIS
-
IAH
17h 29m
2 stops
Multiple Airlines Logo
9:05 pm - 5:45 pm
IAH
-
LIS
14h 40m
1 stop
$898Multiple Airlines
Fri, Aug 28 - Sun, Aug 30
Iberia Logo
12:30 pm - 11:59 pm
LIS
-
IAH
17h 29m
2 stops
Iberia Logo
7:06 pm - 4:05 pm
IAH
-
LIS
14h 59m
2 stops
$905Iberia
Thu, Aug 27 - Thu, Sep 10
Iberia Logo
12:30 pm - 11:59 pm
LIS
-
IAH
17h 29m
2 stops
Iberia Logo
7:06 pm - 4:05 pm
IAH
-
LIS
14h 59m
2 stops
$906Iberia
Thu, Aug 27 - Thu, Sep 10
Multiple Airlines Logo
5:30 pm - 5:47 pm
LIS
-
IAH
30h 17m
2 stops
Multiple Airlines Logo
12:55 pm - 8:00 am
IAH
-
LIS
13h 05m
1 stop
$908Multiple Airlines
Mon, Nov 2 - Sun, Nov 15
Iberia Logo
12:30 pm - 11:59 pm
LIS
-
IAH
17h 29m
2 stops
Iberia Logo
1:16 pm - 8:05 pm
IAH
-
LIS
24h 49m
2 stops
$913Iberia
Fri, Aug 28 - Sun, Aug 30
Multiple Airlines Logo
11:35 am - 3:40 pm
LIS
-
IAH
34h 05m
2 stops
Multiple Airlines Logo
6:10 pm - 10:15 pm
IAH
-
LIS
22h 05m
2 stops
$919Multiple Airlines
Thu, Aug 27 - Wed, Sep 9
Multiple Airlines Logo
6:15 am - 10:50 am
LIS
-
IAH
34h 35m
3 stops
Multiple Airlines Logo
9:10 pm - 3:45 pm
IAH
-
LIS
36h 35m
1 stop
$920Multiple Airlines
Tue, Aug 25 - Wed, Aug 26

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Turkish Airlines flights from Portugal to Houston George Bush Intcntl Airport

Our best Turkish Airlines deals on Portugal to Houston George Bush Intcntl Airport flight tickets
Turkish Airlines
Sep 3
LIS5:55 amLisbon Humberto Delgado
36h 50m
1 stop
IAH12:45 pmHouston George Bush Intcntl
Sep 5
IAH9:10 pmHouston George Bush Intcntl
36h 25m
1 stop
LIS3:35 pmLisbon Humberto Delgado
$1,057
Turkish Airlines
Aug 23
LIS5:55 amLisbon Humberto Delgado
19h 20m
1 stop
IAH7:15 pmHouston George Bush Intcntl
Aug 31
IAH2:30 pmHouston George Bush Intcntl
19h 05m
1 stop
LIS3:35 pmLisbon Humberto Delgado
$1,072
Turkish Airlines
Aug 23
LIS5:55 amLisbon Humberto Delgado
19h 20m
1 stop
IAH7:15 pmHouston George Bush Intcntl
Aug 31
IAH2:30 pmHouston George Bush Intcntl
19h 05m
1 stop
LIS3:35 pmLisbon Humberto Delgado
$1,093

British Airways flights from Portugal to Houston George Bush Intcntl Airport

Our best British Airways deals on Portugal to Houston George Bush Intcntl Airport flight tickets
British Airways
Sep 3
LIS11:05 amLisbon Humberto Delgado
17h 35m
1 stop
IAH10:40 pmHouston George Bush Intcntl
Sep 5
IAH6:37 pmHouston George Bush Intcntl
32h 28m
2 stops
LIS9:05 amLisbon Humberto Delgado
$1,060
British Airways
Nov 3
LIS7:05 amLisbon Humberto Delgado
18h 55m
1 stop
IAH8:00 pmHouston George Bush Intcntl
Nov 5
IAH3:50 pmHouston George Bush Intcntl
16h 55m
1 stop
LIS2:45 pmLisbon Humberto Delgado
$1,082

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Houston George Bush Intcntl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 11, 2026.
Use the filters below to find and compare flights from Portugal to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 10/26

6:30 am-9:59 pm

2 stops20h 29m

Houston George Bush Intcntl

Mon 11/16

3:50 pm-6:55 pm

1 stop21h 05m

$889

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 8/27

12:30 pm-11:59 pm

2 stops17h 29m

Houston George Bush Intcntl

Thu 9/10

9:05 pm-11:05 pm

1 stop20h 00m

$890

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 10/26

6:30 am-9:59 pm

2 stops20h 29m

Houston George Bush Intcntl

Mon 11/16

4:32 pm-2:55 pm

2 stops16h 23m

$894
Quickest round-trip

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 8/28

12:30 pm-11:59 pm

2 stops17h 29m

Houston George Bush Intcntl

Sun 8/30

9:05 pm-5:45 pm

1 stop14h 40m

$898

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 8/27

12:30 pm-11:59 pm

2 stops17h 29m

Houston George Bush Intcntl

Thu 9/10

7:06 pm-4:05 pm

2 stops14h 59m

$905

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 8/27

12:30 pm-11:59 pm

2 stops17h 29m

Houston George Bush Intcntl

Thu 9/10

7:06 pm-4:05 pm

2 stops14h 59m

$906

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 11/2

5:30 pm-5:47 pm

2 stops30h 17m

Houston George Bush Intcntl

Sun 11/15

12:55 pm-8:00 am

1 stop13h 05m

$908

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 8/28

12:30 pm-11:59 pm

2 stops17h 29m

Houston George Bush Intcntl

Sun 8/30

1:16 pm-8:05 pm

2 stops24h 49m

$913

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 8/27

11:35 am-3:40 pm

2 stops34h 05m

Houston George Bush Intcntl

Wed 9/9

6:10 pm-10:15 pm

2 stops22h 05m

$919

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 8/25

6:15 am-10:50 am

3 stops34h 35m

Houston George Bush Intcntl

Wed 8/26

9:10 pm-3:45 pm

1 stop36h 35m

$920

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from Portugal to Houston George Bush Intcntl Airport

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

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of May is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Portugal, with most prices found around $0. If you are unable to visit Houston George Bush Intcntl Airport during the month of May, then departing from Portugal during the month January is also very affordable. Most momondo users find prices during this month for around $525.

Can stopping save me money on Portugal to Houston George Bush Intcntl Airport flights?

You could potentially save up to 13% on your flight if you consider stops on a Portugal to Houston George Bush Intcntl Airport flight.

Cheap Portugal to Houston George Bush Intcntl Airport flight deals and tips

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

Fastest flight time

18h 45m

Direct flights

None
The fastest flight from Portugal to Houston George Bush Intcntl Airport takes 18h 45m
There are no direct flights from Portugal to Houston George Bush Intcntl Airport. There are no popular flight routes from Portugal to Houston George Bush Intcntl Airport.
Search flight deals

Frequently asked questions about flying from Portugal to Houston George Bush Intcntl Airport

  • When did momondo last update prices for flights from Portugal to Houston George Bush Intcntl Airport?

    Prices for flights from Portugal to Houston George Bush Intcntl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Portugal to Houston George Bush Intcntl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The necessary travel and health documents for your Houston George Bush Intcntl Airport 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.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
Katy
The Woodlands
Humble
Conroe
Spring
Cypress
Montgomery
Jersey Village
Tomball
Livingston

Why use momondo?

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

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 Portugal to Houston for you.

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

Yes. momondo allows you to filter the results for Portugal to Houston flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Houston from Portugal. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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.

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