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Cheap flights from Portugal to Houston from $374

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 4/27. 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
0 bags

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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
5:10 pm - 1:54 pm
LIS
-
IAH
25h 44m
1 stop
Multiple Airlines Logo
5:24 pm - 12:35 pm
IAH
-
LIS
14h 11m
1 stop
$779Multiple Airlines
Wed, Mar 11 - Fri, Mar 20
British Airways Logo
7:20 am - 7:10 pm
LIS
-
IAH
17h 50m
1 stop
British Airways Logo
9:05 pm - 5:45 pm
IAH
-
LIS
14h 40m
1 stop
$812British Airways
Sun, Apr 26 - Sun, May 3
KLM Logo
3:30 pm - 1:30 pm
LIS
-
IAH
28h 00m
1 stop
KLM Logo
3:30 pm - 10:35 am
IAH
-
LIS
13h 05m
1 stop
$818KLM
Mon, Feb 16 - Sun, Feb 22
Multiple Airlines Logo
11:25 am - 2:30 pm
LIS
-
IAH
32h 05m
1 stop
Multiple Airlines Logo
3:50 pm - 5:50 pm
IAH
-
LIS
20h 00m
1 stop
$832Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
Delta Logo
5:00 am - 9:09 pm
LIS
-
IAH
21h 09m
2 stops
Delta Logo
3:50 pm - 11:15 am
IAH
-
LIS
13h 25m
1 stop
$838Delta
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
8:05 pm - 11:59 pm
LIS
-
IAH
33h 54m
2 stops
Multiple Airlines Logo
4:22 pm - 9:20 am
IAH
-
LIS
34h 58m
2 stops
$839Multiple Airlines
Mon, Feb 16 - Sun, Feb 22
Multiple Airlines Logo
8:05 pm - 11:59 pm
LIS
-
IAH
33h 54m
2 stops
Multiple Airlines Logo
9:40 pm - 9:20 am
IAH
-
LIS
29h 40m
3 stops
$850Multiple Airlines
Mon, Feb 16 - Sun, Feb 22
Multiple Airlines Logo
6:40 am - 11:49 pm
LIS
-
IAH
22h 09m
2 stops
Multiple Airlines Logo
6:46 am - 8:45 pm
IAH
-
LIS
31h 59m
3 stops
$864Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
United Airlines Logo
5:00 am - 8:19 pm
LIS
-
IAH
21h 19m
2 stops
United Airlines Logo
11:55 am - 8:10 am
IAH
-
LIS
14h 15m
1 stop
$867United Airlines
Sun, Feb 22 - Sat, Feb 28
United Airlines Logo
5:00 am - 8:33 pm
LIS
-
IAH
20h 33m
2 stops
United Airlines Logo
7:30 am - 8:20 am
IAH
-
LIS
18h 50m
2 stops
$868United Airlines
Tue, Mar 24 - Tue, Mar 31

Delta flights from Portugal to Houston George Bush Intcntl Airport

Our best Delta deals on Portugal to Houston George Bush Intcntl Airport flight tickets
Delta
Mar 24
LIS5:00 amLisbon Humberto Delgado
21h 09m
2 stops
IAH9:09 pmHouston George Bush Intcntl
Mar 31
IAH3:50 pmHouston George Bush Intcntl
13h 25m
1 stop
LIS11:15 amLisbon Humberto Delgado
$838
Delta
Mar 10
LIS5:00 amLisbon Humberto Delgado
21h 09m
2 stops
IAH9:09 pmHouston George Bush Intcntl
Mar 17
IAH5:05 pmHouston George Bush Intcntl
13h 15m
1 stop
LIS11:20 amLisbon Humberto Delgado
$840
Delta
Mar 29
LIS11:55 amLisbon Humberto Delgado
31h 20m
1 stop
IAH1:15 pmHouston George Bush Intcntl
Apr 13
IAH3:50 pmHouston George Bush Intcntl
20h 00m
1 stop
LIS5:50 pmLisbon Humberto Delgado
$898

United Airlines flights from Portugal to Houston George Bush Intcntl Airport

Our best United Airlines deals on Portugal to Houston George Bush Intcntl Airport flight tickets
United Airlines
Feb 22
LIS5:00 amLisbon Humberto Delgado
21h 19m
2 stops
IAH8:19 pmHouston George Bush Intcntl
Feb 28
IAH11:55 amHouston George Bush Intcntl
14h 15m
1 stop
LIS8:10 amLisbon Humberto Delgado
$867
United Airlines
Mar 24
LIS5:00 amLisbon Humberto Delgado
20h 33m
2 stops
IAH8:33 pmHouston George Bush Intcntl
Mar 31
IAH7:30 amHouston George Bush Intcntl
18h 50m
2 stops
LIS8:20 amLisbon Humberto Delgado
$868
United Airlines
Mar 11
LIS5:00 amLisbon Humberto Delgado
20h 47m
2 stops
IAH8:47 pmHouston George Bush Intcntl
Mar 20
IAH7:25 amHouston George Bush Intcntl
21h 50m
1 stop
LIS10:15 amLisbon Humberto Delgado
$869

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 February 8, 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

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Wed 3/11

5:10 pm-1:54 pm

1 stop25h 44m

Houston George Bush Intcntl

Fri 3/20

5:24 pm-12:35 pm

1 stop14h 11m

$779

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 4/26

7:20 am-7:10 pm

1 stop17h 50m

Houston George Bush Intcntl

Sun 5/3

9:05 pm-5:45 pm

1 stop14h 40m

$812

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 2/16

3:30 pm-1:30 pm

1 stop28h 00m

Houston George Bush Intcntl

Sun 2/22

3:30 pm-10:35 am

1 stop13h 05m

$818

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 3/24

11:25 am-2:30 pm

1 stop32h 05m

Houston George Bush Intcntl

Tue 3/31

3:50 pm-5:50 pm

1 stop20h 00m

$832

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 3/24

5:00 am-9:09 pm

2 stops21h 09m

Houston George Bush Intcntl

Tue 3/31

3:50 pm-11:15 am

1 stop13h 25m

$838

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 2/16

8:05 pm-11:59 pm

2 stops33h 54m

Houston George Bush Intcntl

Sun 2/22

4:22 pm-9:20 am

2 stops34h 58m

$839

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 2/16

8:05 pm-11:59 pm

2 stops33h 54m

Houston George Bush Intcntl

Sun 2/22

9:40 pm-9:20 am

3 stops29h 40m

$850

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 3/24

6:40 am-11:49 pm

2 stops22h 09m

Houston George Bush Intcntl

Tue 3/31

6:46 am-8:45 pm

3 stops31h 59m

$864

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Sun 2/22

5:00 am-8:19 pm

2 stops21h 19m

Houston George Bush Intcntl

Sat 2/28

11:55 am-8:10 am

1 stop14h 15m

$867

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 3/24

5:00 am-8:33 pm

2 stops20h 33m

Houston George Bush Intcntl

Tue 3/31

7:30 am-8:20 am

2 stops18h 50m

$868

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

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

You could potentially save up to 4% 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

17h 50m

Direct flights

None
The fastest flight from Portugal to Houston George Bush Intcntl Airport takes 17h 50m
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

  • 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 many operators does momondo search for flights from Portugal to Houston George Bush Intcntl Airport?

  • 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.

Best airlines flying from Portugal to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from Portugal to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $797Free CancellationRating
7.4
9,250 reviews
Search United Airlines flights

Traveling to a place near Houston?

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Katy
The Woodlands
Conroe
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Humble
Spring
Montgomery
Tomball
Livingston
Jersey Village

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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.

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