Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Houston to Portugal from $238

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Portugal departing on 9/22. 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

Discover deals from 900+ travel sites with momondo.

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 Houston to Portugal

Cheap round-trip flights

United Airlines Logo
11:50 am - 9:20 amIAH-LIS
15h 30m1 stop
United Airlines Logo
10:55 am - 6:55 pmLIS-IAH
38h 00m2 stops
$577United Airlines
Find Deal
mar., nov. 11 - jue., dic. 4
United Airlines Logo
11:50 am - 9:20 amIAH-LIS
15h 30m1 stop
United Airlines Logo
10:55 am - 5:23 pmLIS-IAH
36h 28m2 stops
$578United Airlines
Find Deal
mar., nov. 11 - jue., dic. 4
Air Canada Logo
6:25 pm - 9:20 amIAH-LIS
32h 55m2 stops
Air Canada Logo
5:00 am - 10:59 amLIS-IAH
35h 59m2 stops
$597Air Canada
Find Deal
lun., nov. 17 - mar., nov. 25
British Airways Logo
3:50 pm - 12:10 pmIAH-LIS
14h 20m1 stop
British Airways Logo
11:05 am - 9:35 pmLIS-IAH
16h 30m1 stop
$598British Airways
Find Deal
mié., ene. 21 - mié., ene. 28
British Airways Logo
5:18 pm - 5:40 pmIAH-LIS
18h 22m2 stops
British Airways Logo
6:30 am - 9:35 pmLIS-IAH
21h 05m2 stops
$608British Airways
Find Deal
mié., ene. 21 - mié., ene. 28
Delta Logo
9:40 am - 8:00 amIAH-LIS
16h 20m2 stops
Delta Logo
11:15 am - 9:38 pmLIS-IAH
16h 23m2 stops
$610Delta
Find Deal
dom., nov. 16 - mar., nov. 25
Delta Logo
6:15 am - 9:00 amIAH-LIS
20h 45m1 stop
Delta Logo
12:20 pm - 1:55 pmLIS-IAH
31h 35m1 stop
$620Delta
Find Deal
dom., nov. 16 - lun., nov. 24
Air Canada Logo
11:50 am - 8:55 amIAH-LIS
15h 05m1 stop
Air Canada Logo
5:00 am - 6:38 pmLIS-IAH
19h 38m2 stops
$640Air Canada
Find Deal
sáb., nov. 15 - mar., nov. 25
KLM Logo
3:30 pm - 9:35 amIAH-FNC
36h 05m1 stop
KLM Logo
10:20 am - 1:15 pmFNC-IAH
32h 55m1 stop
$831KLM
Find Deal
lun., ago. 18 - mié., sep. 3
KLM Logo
5:17 pm - 6:55 pmIAH-FNC
19h 38m2 stops
KLM Logo
10:20 am - 1:15 pmFNC-IAH
32h 55m1 stop
$836KLM
Find Deal
lun., ago. 18 - mié., sep. 3

Delta flights from Houston to Portugal

Our best Delta deals on Houston to Portugal flight tickets
Delta
Nov 16
IAH9:40 amHouston George Bush Intcntl
16h 20m
2 stops
LIS8:00 amLisbon Humberto Delgado
Nov 25
LIS11:15 amLisbon Humberto Delgado
16h 23m
2 stops
IAH9:38 pmHouston George Bush Intcntl
$610
Find similar
Delta
Nov 16
IAH6:15 amHouston George Bush Intcntl
20h 45m
1 stop
LIS9:00 amLisbon Humberto Delgado
Nov 24
LIS12:20 pmLisbon Humberto Delgado
31h 35m
1 stop
IAH1:55 pmHouston George Bush Intcntl
$620
Find similar
Delta
Nov 4
IAH12:55 pmHouston George Bush Intcntl
20h 15m
2 stops
LIS3:10 pmLisbon Humberto Delgado
Nov 14
LIS5:30 amLisbon Humberto Delgado
14h 25m
1 stop
IAH1:55 pmHouston George Bush Intcntl
$625
Find similar

British Airways flights from Houston to Portugal

Our best British Airways deals on Houston to Portugal flight tickets
British Airways
Jan 21
IAH3:50 pmHouston George Bush Intcntl
14h 20m
1 stop
LIS12:10 pmLisbon Humberto Delgado
Jan 28
LIS11:05 amLisbon Humberto Delgado
16h 30m
1 stop
IAH9:35 pmHouston George Bush Intcntl
$598
Find similar
British Airways
Jan 21
IAH5:18 pmHouston George Bush Intcntl
18h 22m
2 stops
LIS5:40 pmLisbon Humberto Delgado
Jan 28
LIS6:30 amLisbon Humberto Delgado
21h 05m
2 stops
IAH9:35 pmHouston George Bush Intcntl
$608
Find similar
British Airways
Oct 19
IAH9:40 pmHouston George Bush Intcntl
19h 25m
1 stop
LIS11:05 pmLisbon Humberto Delgado
Nov 1
LIS10:30 amLisbon Humberto Delgado
16h 21m
1 stop
IAH9:51 pmHouston George Bush Intcntl
$651
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston to Portugal 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 julio 31, 2025.
Use the filters below to find and compare flights from Houston to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

mar. 11/11

11:50 am-9:20 am

1 stop15h 30m

Lisbon Humberto Delgado

jue. 12/4

10:55 am-6:55 pm

2 stops38h 00m

$577

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

mar. 11/11

11:50 am-9:20 am

1 stop15h 30m

Lisbon Humberto Delgado

jue. 12/4

10:55 am-5:23 pm

2 stops36h 28m

$578

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

lun. 11/17

6:25 pm-9:20 am

2 stops32h 55m

Lisbon Humberto Delgado

mar. 11/25

5:00 am-10:59 am

2 stops35h 59m

$597

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

mié. 1/21

3:50 pm-12:10 pm

1 stop14h 20m

Lisbon Humberto Delgado

mié. 1/28

11:05 am-9:35 pm

1 stop16h 30m

$598

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

mié. 1/21

5:18 pm-5:40 pm

2 stops18h 22m

Lisbon Humberto Delgado

mié. 1/28

6:30 am-9:35 pm

2 stops21h 05m

$608

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

dom. 11/16

9:40 am-8:00 am

2 stops16h 20m

Lisbon Humberto Delgado

mar. 11/25

11:15 am-9:38 pm

2 stops16h 23m

$610

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

dom. 11/16

6:15 am-9:00 am

1 stop20h 45m

Lisbon Humberto Delgado

lun. 11/24

12:20 pm-1:55 pm

1 stop31h 35m

$620

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

sáb. 11/15

11:50 am-8:55 am

1 stop15h 05m

Lisbon Humberto Delgado

mar. 11/25

5:00 am-6:38 pm

2 stops19h 38m

$640

HoustonFunchal

IAH - FNC

IAHFNC

Houston George Bush Intcntl

lun. 8/18

3:30 pm-9:35 am

1 stop36h 05m

Funchal Madeira

mié. 9/3

10:20 am-1:15 pm

1 stop32h 55m

$831

HoustonFunchal

IAH - FNC

IAHFNC

Houston George Bush Intcntl

lun. 8/18

5:17 pm-6:55 pm

2 stops19h 38m

Funchal Madeira

mié. 9/3

10:20 am-1:15 pm

1 stop32h 55m

$836

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to Portugal from

How to get the cheapest flight ticket from Houston to Portugal

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 Portugal?

The cheapest month to fly to Portugal from Houston is in February. Flight prices, which tend to average around $617, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Houston during March instead. Flights to Portugal in March, while not as cheap as those in February, still average around $716.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Sunday is the cheapest day to fly to Portugal from Houston. The lowest ticket price found for a Sunday departure recently was $825. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Wednesday, with ticket prices averaging around $1,199.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from Houston to Portugal during this time can be as low as $913. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,116 per ticket.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $858 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Houston for as low as $689 on momondo.

Cheap Houston to Portugal flight deals and tips

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

Best Price Found

$238

Fastest flight time

11h 20m

Direct flights

None

Airports in Portugal

2 airports
The best one-way flight to Portugal from Houston in the past 72 hours is $238. The best round-trip flight deal from Houston to Portugal found on momondo in the last 72 hours is $577.
The fastest flight from Houston to Portugal takes 11h 20m
There are no direct flights from Houston to Portugal. Popular non-direct routes for this connection are Houston George Bush Intcntl Airport - Lisbon Humberto Delgado Airport and Houston George Bush Intcntl Airport - Porto Airport.
There are 2 airports near Portugal: Lisbon Humberto Delgado (LIS), Porto (OPO)
Search flight deals

  • When did momondo last update prices for flights from Houston to Portugal?

    Prices for flights from Houston to Portugal refresh daily.

  • How many operators does momondo search for flights from Houston to Portugal?

  • How old do you have to be to fly from Houston to Portugal?

    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 Houston to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The necessary travel and health documents for your Portugal 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 Houston to Portugal

Compare and see reviews for airlines that fly from Houston to Portugal with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom $549Free CancellationRating
7.5
1,465 reviews
Search Air France flights
Air CanadaPriceFrom $563Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
DeltaPriceFrom $573Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $578Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $585Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
KLMPriceFrom $629Free CancellationRating
7.8
1,383 reviews
Search KLM flights
Turkish AirlinesPriceFrom $655Free CancellationRating
7.3
3,933 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $679Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Portugal?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Houston to Portugal. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Houston to Portugal with flexible booking policies on momondo?

All flight searches from Houston to Portugal on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Houston to Portugal?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Houston to Portugal.

I’m not ready to book a flight from Houston to Portugal right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Portugal from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Portugal 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
mar. 8/5
mar. 8/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $367
Flights to Portofrom $351
Flights to Funchalfrom $422
Flights to Farofrom $426
Flights to Ponta Delgadafrom $434
Flights to Lajesfrom $445
Flights to Hortafrom $591
Flights to Pico Islandfrom $447
Flights to Porto Santofrom $422
Flights to Velasfrom $506