Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Portugal to Houston from $475

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 6/15. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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.
Lufthansa Logo
7:25 am - 5:55 pm
LIS
-
IAH
16h 30m
1 stop
Lufthansa Logo
4:40 pm - 1:40 pm
IAH
-
LIS
15h 00m
1 stop
$910Lufthansa
Thu, May 28 - Wed, Jun 10
Multiple Airlines Logo
7:25 am - 5:55 pm
LIS
-
IAH
16h 30m
1 stop
Multiple Airlines Logo
12:00 pm - 8:20 am
IAH
-
LIS
14h 20m
1 stop
$918Multiple Airlines
Thu, May 28 - Sat, Jun 13
Air Canada Logo
5:05 am - 9:52 pm
LIS
-
IAH
22h 47m
2 stops
Air Canada Logo
10:00 am - 9:20 am
IAH
-
LIS
17h 20m
1 stop
$949Air Canada
Tue, Sep 22 - Sun, Oct 11
Multiple Airlines Logo
5:55 am - 7:59 pm
LIS
-
IAH
20h 04m
2 stops
Multiple Airlines Logo
10:00 am - 3:25 pm
IAH
-
LIS
23h 25m
2 stops
$955Multiple Airlines
Thu, May 28 - Thu, Jun 11
Multiple Airlines Logo
5:55 am - 7:59 pm
LIS
-
IAH
20h 04m
2 stops
Multiple Airlines Logo
7:20 am - 11:05 am
IAH
-
LIS
21h 45m
1 stop
$960Multiple Airlines
Thu, May 28 - Wed, Jun 10
Air Canada Logo
11:25 am - 7:52 pm
LIS
-
IAH
14h 27m
1 stop
Air Canada Logo
10:00 am - 9:20 am
IAH
-
LIS
17h 20m
1 stop
$961Air Canada
Tue, Sep 22 - Sun, Oct 11
United Airlines Logo
7:25 am - 5:55 pm
LIS
-
IAH
16h 30m
1 stop
United Airlines Logo
2:43 pm - 8:20 am
IAH
-
LIS
11h 37m
1 stop
$964United Airlines
Thu, May 28 - Sat, Jun 13
United Airlines Logo
5:05 am - 5:55 pm
LIS
-
IAH
18h 50m
1 stop
United Airlines Logo
6:00 am - 8:20 am
IAH
-
LIS
20h 20m
1 stop
$965United Airlines
Thu, May 28 - Sat, Jun 13
United Airlines Logo
5:05 am - 5:55 pm
LIS
-
IAH
18h 50m
1 stop
United Airlines Logo
6:01 am - 8:20 am
IAH
-
LIS
20h 19m
1 stop
$966United Airlines
Thu, May 28 - Wed, Jun 10
United Airlines Logo
7:25 am - 5:55 pm
LIS
-
IAH
16h 30m
1 stop
United Airlines Logo
6:01 am - 8:20 am
IAH
-
LIS
20h 19m
1 stop
$967United Airlines
Thu, May 28 - Thu, Jun 11

Air Canada flights from Portugal to Houston George Bush Intcntl Airport

Our best Air Canada deals on Portugal to Houston George Bush Intcntl Airport flight tickets
Air Canada
Sep 22
LIS5:05 amLisbon Humberto Delgado
22h 47m
2 stops
IAH9:52 pmHouston George Bush Intcntl
Oct 11
IAH10:00 amHouston George Bush Intcntl
17h 20m
1 stop
LIS9:20 amLisbon Humberto Delgado
$949
Air Canada
Sep 22
LIS11:25 amLisbon Humberto Delgado
14h 27m
1 stop
IAH7:52 pmHouston George Bush Intcntl
Oct 11
IAH10:00 amHouston George Bush Intcntl
17h 20m
1 stop
LIS9:20 amLisbon Humberto Delgado
$961
Air Canada
May 22
LIS11:25 amLisbon Humberto Delgado
17h 46m
2 stops
IAH11:11 pmHouston George Bush Intcntl
May 29
IAH12:00 pmHouston George Bush Intcntl
15h 20m
2 stops
LIS9:20 amLisbon Humberto Delgado
$1,039

Lufthansa flights from Portugal to Houston George Bush Intcntl Airport

Our best Lufthansa deals on Portugal to Houston George Bush Intcntl Airport flight tickets
Lufthansa
May 28
LIS7:25 amLisbon Humberto Delgado
16h 30m
1 stop
IAH5:55 pmHouston George Bush Intcntl
Jun 10
IAH4:40 pmHouston George Bush Intcntl
15h 00m
1 stop
LIS1:40 pmLisbon Humberto Delgado
$910
Lufthansa
Jun 10
LIS5:05 amLisbon Humberto Delgado
18h 50m
1 stop
IAH5:55 pmHouston George Bush Intcntl
Jun 17
IAH6:20 pmHouston George Bush Intcntl
23h 15m
1 stop
LIS11:35 pmLisbon Humberto Delgado
$1,017

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 May 12, 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

Thu 5/28

7:25 am-5:55 pm

1 stop16h 30m

Houston George Bush Intcntl

Wed 6/10

4:40 pm-1:40 pm

1 stop15h 00m

$910

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 5/28

7:25 am-5:55 pm

1 stop16h 30m

Houston George Bush Intcntl

Sat 6/13

12:00 pm-8:20 am

1 stop14h 20m

$918

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 9/22

5:05 am-9:52 pm

2 stops22h 47m

Houston George Bush Intcntl

Sun 10/11

10:00 am-9:20 am

1 stop17h 20m

$949

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 5/28

5:55 am-7:59 pm

2 stops20h 04m

Houston George Bush Intcntl

Thu 6/11

10:00 am-3:25 pm

2 stops23h 25m

$955

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 5/28

5:55 am-7:59 pm

2 stops20h 04m

Houston George Bush Intcntl

Wed 6/10

7:20 am-11:05 am

1 stop21h 45m

$960

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Tue 9/22

11:25 am-7:52 pm

1 stop14h 27m

Houston George Bush Intcntl

Sun 10/11

10:00 am-9:20 am

1 stop17h 20m

$961
Quickest round-trip

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 5/28

7:25 am-5:55 pm

1 stop16h 30m

Houston George Bush Intcntl

Sat 6/13

2:43 pm-8:20 am

1 stop11h 37m

$964

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 5/28

5:05 am-5:55 pm

1 stop18h 50m

Houston George Bush Intcntl

Sat 6/13

6:00 am-8:20 am

1 stop20h 20m

$965

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 5/28

5:05 am-5:55 pm

1 stop18h 50m

Houston George Bush Intcntl

Wed 6/10

6:01 am-8:20 am

1 stop20h 19m

$966

LisbonHouston

LIS - IAH

LISIAH

Lisbon Humberto Delgado

Thu 5/28

7:25 am-5:55 pm

1 stop16h 30m

Houston George Bush Intcntl

Thu 6/11

6:01 am-8:20 am

1 stop20h 19m

$967

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 August 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 August, 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 6% 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 50m

Direct flights

None
The fastest flight from Portugal to Houston George Bush Intcntl Airport takes 18h 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

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
Conroe
Humble
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.

An easier way to manage your Houston George Bush Intcntl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 6/11
Thu 6/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Houston