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Cheap flights from Portugal to Houston from $453

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 4/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Recent round-trip flight deals from Portugal to Houston

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Multiple Airlines Logo
6:10 am - 10:56 pm
LIS
-
IAH
22h 46m2 stops
Multiple Airlines Logo
8:30 am - 8:10 am
IAH
-
LIS
17h 40m2 stops
$666Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
6:10 am - 10:56 pm
LIS
-
IAH
22h 46m2 stops
Multiple Airlines Logo
8:30 am - 2:35 pm
IAH
-
LIS
24h 05m2 stops
$691Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
11:35 am - 3:19 pm
LIS
-
IAH
33h 44m3 stops
Multiple Airlines Logo
8:30 am - 3:15 pm
IAH
-
LIS
24h 45m2 stops
$713Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
6:45 pm - 10:33 am
LIS
-
IAH
21h 48m2 stops
Multiple Airlines Logo
7:45 am - 5:25 am
IAH
-
LIS
15h 40m2 stops
$727Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
3:20 pm - 6:58 pm
LIS
-
IAH
57h 38m2 stops
Multiple Airlines Logo
7:27 pm - 5:25 am
IAH
-
LIS
27h 58m1 stop
$738Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
5:55 am - 2:57 pm
LIS
-
IAH
39h 02m2 stops
Multiple Airlines Logo
7:27 pm - 5:25 am
IAH
-
LIS
27h 58m1 stop
$743Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
11:35 am - 11:59 pm
LIS
-
IAH
18h 24m2 stops
Multiple Airlines Logo
5:24 pm - 9:20 am
IAH
-
LIS
33h 56m2 stops
$768Multiple Airlines
Fri, Feb 13 - Sat, Feb 21
Multiple Airlines Logo
11:35 am - 11:59 pm
LIS
-
IAH
18h 24m2 stops
Multiple Airlines Logo
5:24 pm - 9:20 am
IAH
-
LIS
33h 56m3 stops
$772Multiple Airlines
Fri, Feb 13 - Sat, Feb 21
Scandinavian Airlines Logo
6:55 pm - 11:56 pm
LIS
-
IAH
35h 01m2 stops
Scandinavian Airlines Logo
4:06 pm - 3:50 pm
IAH
-
LIS
41h 44m2 stops
$792Scandinavian Airlines
Thu, Jan 15 - Wed, Jan 28
Scandinavian Airlines Logo
6:55 pm - 11:56 pm
LIS
-
IAH
35h 01m2 stops
Scandinavian Airlines Logo
4:06 pm - 3:50 pm
IAH
-
LIS
41h 44m2 stops
$799Scandinavian Airlines
Thu, Jan 15 - Wed, Jan 28

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
Jan 15
LIS5:00 amLisbon Humberto Delgado
19h 15m
1 stop
IAH6:15 pmHouston George Bush Intcntl
Jan 28
IAH8:00 amHouston George Bush Intcntl
18h 10m
1 stop
LIS8:10 amLisbon Humberto Delgado
$857
Find similar
United Airlines
Feb 17
LIS5:00 amLisbon Humberto Delgado
19h 15m
1 stop
IAH6:15 pmHouston George Bush Intcntl
Apr 21
IAH11:50 amHouston George Bush Intcntl
15h 30m
1 stop
LIS9:20 amLisbon Humberto Delgado
$858
Find similar
United Airlines
Jan 15
LIS5:00 amLisbon Humberto Delgado
19h 15m
1 stop
IAH6:15 pmHouston George Bush Intcntl
Jan 28
IAH6:40 pmHouston George Bush Intcntl
32h 40m
2 stops
LIS9:20 amLisbon Humberto Delgado
$860
Find similar

Scandinavian Airlines flights from Portugal to Houston George Bush Intcntl Airport

Our best Scandinavian Airlines deals on Portugal to Houston George Bush Intcntl Airport flight tickets
Scandinavian Airlines
Jan 15
LIS6:55 pmLisbon Humberto Delgado
35h 01m
2 stops
IAH11:56 pmHouston George Bush Intcntl
Jan 28
IAH4:06 pmHouston George Bush Intcntl
41h 44m
2 stops
LIS3:50 pmLisbon Humberto Delgado
$792
Find similar
Scandinavian Airlines
Jan 15
LIS6:55 pmLisbon Humberto Delgado
35h 01m
2 stops
IAH11:56 pmHouston George Bush Intcntl
Jan 28
IAH4:06 pmHouston George Bush Intcntl
41h 44m
2 stops
LIS3:50 pmLisbon Humberto Delgado
$799
Find similar
Scandinavian Airlines
Feb 10
LIS12:50 pmLisbon Humberto Delgado
40h 47m
2 stops
IAH11:37 pmHouston George Bush Intcntl
Feb 14
IAH2:23 pmHouston George Bush Intcntl
36h 32m
2 stops
LIS8:55 amLisbon Humberto Delgado
$939
Find similar

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 December 15, 2025.
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

Thu 1/15

6:10 am-10:56 pm

2 stops22h 46m

Houston George Bush Intcntl

Wed 1/28

8:30 am-8:10 am

2 stops17h 40m

$666

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

6:10 am-10:56 pm

2 stops22h 46m

Houston George Bush Intcntl

Wed 1/28

8:30 am-2:35 pm

2 stops24h 05m

$691

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

11:35 am-3:19 pm

3 stops33h 44m

Houston George Bush Intcntl

Wed 1/28

8:30 am-3:15 pm

2 stops24h 45m

$713

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

6:45 pm-10:33 am

2 stops21h 48m

Houston George Bush Intcntl

Wed 1/28

7:45 am-5:25 am

2 stops15h 40m

$727

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

3:20 pm-6:58 pm

2 stops57h 38m

Houston George Bush Intcntl

Wed 1/28

7:27 pm-5:25 am

1 stop27h 58m

$738

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

5:55 am-2:57 pm

2 stops39h 02m

Houston George Bush Intcntl

Wed 1/28

7:27 pm-5:25 am

1 stop27h 58m

$743

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 2/13

11:35 am-11:59 pm

2 stops18h 24m

Houston George Bush Intcntl

Sat 2/21

5:24 pm-9:20 am

2 stops33h 56m

$768

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Fri 2/13

11:35 am-11:59 pm

2 stops18h 24m

Houston George Bush Intcntl

Sat 2/21

5:24 pm-9:20 am

3 stops33h 56m

$772

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

6:55 pm-11:56 pm

2 stops35h 01m

Houston George Bush Intcntl

Wed 1/28

4:06 pm-3:50 pm

2 stops41h 44m

$792

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 1/15

6:55 pm-11:56 pm

2 stops35h 01m

Houston George Bush Intcntl

Wed 1/28

4:06 pm-3:50 pm

2 stops41h 44m

$799

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 day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Portugal to Houston George Bush Intcntl Airport is on a Tuesday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Tuesday will often find tickets for as low as $758. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Thursday is $1,376.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Portugal to Houston George Bush Intcntl Airport flights are usually those with departure times in the evening. Our users have found flights to Houston George Bush Intcntl Airport in the evening for as low as $790. Try not to purchase tickets in the morning because they tend to be around $1,023. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 1% 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

14h 55m

Direct flights

None
The fastest flight from Portugal to Houston George Bush Intcntl Airport takes 14h 55m
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 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
The Woodlands
Katy
Conroe
Cypress
Humble
Spring
Montgomery
Tomball
Livingston
Jersey Village

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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