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Cheap flights from Portugal to Houston from $375

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 4/8. 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
8:05 pm - 11:49 pm
LIS
-
IAH
33h 44m
2 stops
Multiple Airlines Logo
11:41 am - 11:00 pm
IAH
-
LIS
29h 19m
3 stops
$758Multiple Airlines
Mon, Mar 30 - Mon, Apr 13
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
Multiple Airlines Logo
4:50 pm - 2:30 pm
LIS
-
IAH
26h 40m
1 stop
Multiple Airlines Logo
5:05 pm - 11:20 am
IAH
-
LIS
13h 15m
1 stop
$832Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
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
Air France Logo
5:30 am - 2:55 pm
LIS
-
IAH
14h 25m
1 stop
Air France Logo
3:50 pm - 5:50 pm
IAH
-
LIS
20h 00m
1 stop
$839Air France
Thu, Mar 26 - Thu, Apr 2
Delta Logo
5:00 am - 6:28 pm
LIS
-
IAH
18h 28m
2 stops
Delta Logo
6:54 pm - 5:30 pm
IAH
-
LIS
17h 36m
2 stops
$840Delta
Tue, Mar 10 - Tue, Mar 17
Delta Logo
5:00 am - 1:15 pm
LIS
-
IAH
14h 15m
1 stop
Delta Logo
6:46 pm - 6:45 pm
IAH
-
LIS
17h 59m
2 stops
$845Delta
Mon, Mar 30 - Mon, Apr 13
Delta Logo
11:55 am - 11:59 pm
LIS
-
IAH
18h 04m
2 stops
Delta Logo
6:46 pm - 6:45 pm
IAH
-
LIS
17h 59m
2 stops
$851Delta
Mon, Mar 30 - Mon, Apr 13
United Airlines Logo
5:05 am - 6:00 pm
LIS
-
IAH
18h 55m
1 stop
United Airlines Logo
2:43 pm - 8:20 am
IAH
-
LIS
11h 37m
1 stop
$863United Airlines
Mon, Mar 30 - Mon, Apr 13
Virgin Atlantic Logo
11:15 am - 10:42 pm
LIS
-
HOU
16h 27m
2 stops
Virgin Atlantic Logo
2:13 pm - 10:45 am
HOU
-
LIS
14h 32m
2 stops
$943Virgin Atlantic
Tue, Mar 24 - Tue, Mar 31

Iberia flights from Portugal to Houston

Our best Iberia deals on Portugal to Houston flight tickets
Iberia
Jun 23
LIS6:35 amLisbon Humberto Delgado
23h 17m
2 stops
HOU11:52 pmHouston Hobby
Jul 13
HOU1:08 pmHouston Hobby
24h 57m
2 stops
LIS8:05 pmLisbon Humberto Delgado
$1,103
Iberia
Mar 30
LIS8:25 amLisbon Humberto Delgado
17h 25m
2 stops
HOU7:50 pmHouston Hobby
Apr 13
HOU12:42 pmHouston Hobby
17h 08m
2 stops
LIS11:50 amLisbon Humberto Delgado
$2,616

Delta flights from Portugal to Houston

Our best Delta deals on Portugal to Houston 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 30
LIS5:00 amLisbon Humberto Delgado
14h 15m
1 stop
IAH1:15 pmHouston George Bush Intcntl
Apr 13
IAH6:46 pmHouston George Bush Intcntl
17h 59m
2 stops
LIS6:45 pmLisbon Humberto Delgado
$845

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 February 9, 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

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 3/30

8:05 pm-11:49 pm

2 stops33h 44m

Houston George Bush Intcntl

Mon 4/13

11:41 am-11:00 pm

3 stops29h 19m

$758

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

Tue 3/10

4:50 pm-2:30 pm

1 stop26h 40m

Houston George Bush Intcntl

Tue 3/17

5:05 pm-11:20 am

1 stop13h 15m

$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

Thu 3/26

5:30 am-2:55 pm

1 stop14h 25m

Houston George Bush Intcntl

Thu 4/2

3:50 pm-5:50 pm

1 stop20h 00m

$839

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 3/10

5:00 am-6:28 pm

2 stops18h 28m

Houston George Bush Intcntl

Tue 3/17

6:54 pm-5:30 pm

2 stops17h 36m

$840

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 3/30

5:00 am-1:15 pm

1 stop14h 15m

Houston George Bush Intcntl

Mon 4/13

6:46 pm-6:45 pm

2 stops17h 59m

$845

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 3/30

11:55 am-11:59 pm

2 stops18h 04m

Houston George Bush Intcntl

Mon 4/13

6:46 pm-6:45 pm

2 stops17h 59m

$851

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Mon 3/30

5:05 am-6:00 pm

1 stop18h 55m

Houston George Bush Intcntl

Mon 4/13

2:43 pm-8:20 am

1 stop11h 37m

$863

LisbonHouston

LIS - HOU

LISHOU

Lisbon Humberto Delgado

Tue 3/24

11:15 am-10:42 pm

2 stops16h 27m

Houston Hobby

Tue 3/31

2:13 pm-10:45 am

2 stops14h 32m

$943

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 September is, on average, the cheapest month to fly to Houston from Portugal, with most prices found around $773. The month of February is another great option to travel to Houston, with average flight prices from Portugal averaging around $797.

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

14h 34m

Direct flights

None
The fastest flight from Portugal to Houston takes 14h 34m
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?

  • 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
United AirlinesPriceFrom $794Free CancellationRating
7.4
9,262 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.

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