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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 - 11:56 pm
LIS
-
HOU
17h 26m
2 stops
Iberia Logo
6:19 pm - 4:05 pm
HOU
-
LIS
15h 46m
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
$905Iberia
Thu, Aug 27 - Thu, Sep 10
Iberia Logo
12:30 pm - 11:56 pm
LIS
-
HOU
17h 26m
2 stops
Iberia Logo
6:19 pm - 4:05 pm
HOU
-
LIS
15h 46m
2 stops
$906Iberia
Thu, Aug 27 - Thu, Sep 10
Delta Logo
5:00 am - 10:05 pm
LIS
-
HOU
23h 05m
2 stops
Delta Logo
5:26 pm - 6:45 pm
HOU
-
LIS
19h 19m
2 stops
$956Delta
Thu, Aug 27 - Wed, Sep 9
Delta Logo
5:00 am - 10:05 pm
LIS
-
HOU
23h 05m
2 stops
Delta Logo
5:26 pm - 6:45 pm
HOU
-
LIS
19h 19m
2 stops
$957Delta
Thu, Aug 27 - Wed, Sep 9
American Airlines Logo
7:20 am - 7:48 pm
LIS
-
HOU
18h 28m
2 stops
American Airlines Logo
11:31 am - 9:05 am
HOU
-
LIS
15h 34m
2 stops
$1,007American Airlines
Wed, Sep 23 - Sun, Sep 27

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Iberia flights from Portugal to Houston

Our best Iberia deals on Portugal to Houston flight tickets
Iberia
Aug 27
LIS12:30 pmLisbon Humberto Delgado
17h 26m
2 stops
HOU11:56 pmHouston Hobby
Sep 10
HOU6:19 pmHouston Hobby
15h 46m
2 stops
LIS4:05 pmLisbon Humberto Delgado
$905
Iberia
Aug 27
LIS12:30 pmLisbon Humberto Delgado
17h 26m
2 stops
HOU11:56 pmHouston Hobby
Sep 10
HOU6:19 pmHouston Hobby
15h 46m
2 stops
LIS4:05 pmLisbon Humberto Delgado
$906
Iberia
Aug 28
LIS12:30 pmLisbon Humberto Delgado
17h 29m
2 stops
IAH11:59 pmHouston George Bush Intcntl
Aug 30
IAH1:16 pmHouston George Bush Intcntl
24h 49m
2 stops
LIS8:05 pmLisbon Humberto Delgado
$913

Delta flights from Portugal to Houston

Our best Delta deals on Portugal to Houston flight tickets
Delta
Aug 27
LIS5:00 amLisbon Humberto Delgado
20h 54m
2 stops
IAH7:54 pmHouston George Bush Intcntl
Sep 9
IAH3:20 pmHouston George Bush Intcntl
20h 30m
2 stops
LIS5:50 pmLisbon Humberto Delgado
$951
Delta
Aug 27
LIS5:00 amLisbon Humberto Delgado
23h 05m
2 stops
HOU10:05 pmHouston Hobby
Sep 9
HOU5:26 pmHouston Hobby
19h 19m
2 stops
LIS6:45 pmLisbon Humberto Delgado
$956
Delta
Aug 28
LIS5:00 amLisbon Humberto Delgado
23h 05m
2 stops
HOU10:05 pmHouston Hobby
Aug 30
HOU6:00 amHouston Hobby
20h 50m
2 stops
LIS8:50 amLisbon Humberto Delgado
$975

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Houston 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 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 - HOU

LISHOU

Lisbon Humberto Delgado

Thu 8/27

12:30 pm-11:56 pm

2 stops17h 26m

Houston Hobby

Thu 9/10

6:19 pm-4:05 pm

2 stops15h 46m

$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

$905

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Thu 8/27

12:30 pm-11:56 pm

2 stops17h 26m

Houston Hobby

Thu 9/10

6:19 pm-4:05 pm

2 stops15h 46m

$906

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Thu 8/27

5:00 am-10:05 pm

2 stops23h 05m

Houston Hobby

Wed 9/9

5:26 pm-6:45 pm

2 stops19h 19m

$956

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Thu 8/27

5:00 am-10:05 pm

2 stops23h 05m

Houston Hobby

Wed 9/9

5:26 pm-6:45 pm

2 stops19h 19m

$957

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Wed 9/23

7:20 am-7:48 pm

2 stops18h 28m

Houston Hobby

Sun 9/27

11:31 am-9:05 am

2 stops15h 34m

$1,007

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

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?

The month of January is, on average, the cheapest month to fly to Houston from Portugal, with most prices found around $525. The month of March is another great option to travel to Houston, with average flight prices from Portugal averaging around $526.

Cheap Portugal to Houston flight deals and tips

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

Fastest flight time

18h 45m

Direct flights

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

Frequently asked questions about flying 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 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.

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.

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