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Cheap flights from Houston George Bush Intcntl Airport to Lisbon from $247

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 George Bush Intcntl Airport to Lisbon departing on 2/6. 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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Find the cheapest flights from Houston George Bush Intcntl Airport to Lisbon

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
12:10 pm - 9:20 amIAH-LIS
15h 10m1 stop
Air Canada Logo
6:10 am - 9:44 pmLIS-IAH
21h 34m2 stops
$509Air Canada
Find Deal
Thu, Jan 8 - Wed, Jan 21
Air Canada Logo
12:10 pm - 9:20 amIAH-LIS
15h 10m1 stop
Air Canada Logo
11:20 am - 9:44 pmLIS-IAH
16h 24m1 stop
$517Air Canada
Find Deal
Thu, Jan 8 - Wed, Jan 21
Air Canada Logo
7:10 am - 9:20 amIAH-LIS
20h 10m2 stops
Air Canada Logo
11:20 am - 4:24 pmLIS-IAH
35h 04m2 stops
$525Air Canada
Find Deal
Thu, Jan 8 - Wed, Jan 21
United Airlines Logo
12:10 pm - 9:20 amIAH-LIS
15h 10m1 stop
United Airlines Logo
5:00 am - 6:15 pmLIS-IAH
19h 15m1 stop
$526United Airlines
Find Deal
Thu, Jan 8 - Wed, Jan 14
United Airlines Logo
12:10 pm - 7:55 amIAH-LIS
13h 45m1 stop
United Airlines Logo
6:10 am - 4:10 pmLIS-IAH
16h 00m1 stop
$529United Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
2:30 pm - 8:10 amIAH-LIS
11h 40m1 stop
United Airlines Logo
5:00 am - 6:15 pmLIS-IAH
19h 15m1 stop
$531United Airlines
Find Deal
Wed, Jan 21 - Mon, Feb 9
Multiple Airlines Logo
6:40 pm - 8:55 amIAH-LIS
32h 15m2 stops
Multiple Airlines Logo
5:00 am - 11:09 amLIS-IAH
36h 09m2 stops
$532Multiple Airlines
Find Deal
Fri, Jan 16 - Sat, Jan 31
Air Canada Logo
12:10 pm - 9:20 amIAH-LIS
15h 10m1 stop
Air Canada Logo
5:00 am - 9:44 pmLIS-IAH
22h 44m2 stops
$533Air Canada
Find Deal
Tue, Jan 20 - Mon, Feb 9
Delta Logo
4:05 pm - 11:20 amIAH-LIS
13h 15m1 stop
Delta Logo
11:25 am - 1:30 pmLIS-IAH
32h 05m1 stop
$534Delta
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Tue, Jan 20 - Wed, Feb 11
Delta Logo
12:49 pm - 8:00 amIAH-LIS
13h 11m1 stop
Delta Logo
11:25 am - 1:30 pmLIS-IAH
32h 05m1 stop
$535Delta
Find Deal
Sun, Jan 18 - Mon, Feb 9

Air Canada flights from Houston George Bush Intcntl Airport to Lisbon

Our best Air Canada deals on Houston George Bush Intcntl Airport to Lisbon flight tickets
Air Canada
Jan 8
IAH12:10 pmHouston George Bush Intcntl
15h 10m
1 stop
LIS9:20 amLisbon Humberto Delgado
Jan 21
LIS6:10 amLisbon Humberto Delgado
21h 34m
2 stops
IAH9:44 pmHouston George Bush Intcntl
$509
Find similar
Air Canada
Jan 8
IAH12:10 pmHouston George Bush Intcntl
15h 10m
1 stop
LIS9:20 amLisbon Humberto Delgado
Jan 21
LIS11:20 amLisbon Humberto Delgado
16h 24m
1 stop
IAH9:44 pmHouston George Bush Intcntl
$517
Find similar
Air Canada
Jan 8
IAH7:10 amHouston George Bush Intcntl
20h 10m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 21
LIS11:20 amLisbon Humberto Delgado
35h 04m
2 stops
IAH4:24 pmHouston George Bush Intcntl
$525
Find similar

United Airlines flights from Houston George Bush Intcntl Airport to Lisbon

Our best United Airlines deals on Houston George Bush Intcntl Airport to Lisbon flight tickets
United Airlines
Jan 8
IAH12:10 pmHouston George Bush Intcntl
15h 10m
1 stop
LIS9:20 amLisbon Humberto Delgado
Jan 14
LIS5:00 amLisbon Humberto Delgado
19h 15m
1 stop
IAH6:15 pmHouston George Bush Intcntl
$526
Find similar
United Airlines
Feb 19
IAH12:10 pmHouston George Bush Intcntl
13h 45m
1 stop
LIS7:55 amLisbon Humberto Delgado
Feb 23
LIS6:10 amLisbon Humberto Delgado
16h 00m
1 stop
IAH4:10 pmHouston George Bush Intcntl
$529
Find similar
United Airlines
Jan 21
IAH2:30 pmHouston George Bush Intcntl
11h 40m
1 stop
LIS8:10 amLisbon Humberto Delgado
Feb 9
LIS5:00 amLisbon Humberto Delgado
19h 15m
1 stop
IAH6:15 pmHouston George Bush Intcntl
$531
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston George Bush Intcntl Airport to Lisbon 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 November 14, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Lisbon that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 1/8

12:10 pm-9:20 am

1 stop15h 10m

Lisbon Humberto Delgado

Wed 1/21

6:10 am-9:44 pm

2 stops21h 34m

$509

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 1/8

12:10 pm-9:20 am

1 stop15h 10m

Lisbon Humberto Delgado

Wed 1/21

11:20 am-9:44 pm

1 stop16h 24m

$517

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 1/8

7:10 am-9:20 am

2 stops20h 10m

Lisbon Humberto Delgado

Wed 1/21

11:20 am-4:24 pm

2 stops35h 04m

$525

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 1/8

12:10 pm-9:20 am

1 stop15h 10m

Lisbon Humberto Delgado

Wed 1/14

5:00 am-6:15 pm

1 stop19h 15m

$526

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 2/19

12:10 pm-7:55 am

1 stop13h 45m

Lisbon Humberto Delgado

Mon 2/23

6:10 am-4:10 pm

1 stop16h 00m

$529

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 1/21

2:30 pm-8:10 am

1 stop11h 40m

Lisbon Humberto Delgado

Mon 2/9

5:00 am-6:15 pm

1 stop19h 15m

$531

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Fri 1/16

6:40 pm-8:55 am

2 stops32h 15m

Lisbon Humberto Delgado

Sat 1/31

5:00 am-11:09 am

2 stops36h 09m

$532

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 1/20

12:10 pm-9:20 am

1 stop15h 10m

Lisbon Humberto Delgado

Mon 2/9

5:00 am-9:44 pm

2 stops22h 44m

$533

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 1/20

4:05 pm-11:20 am

1 stop13h 15m

Lisbon Humberto Delgado

Wed 2/11

11:25 am-1:30 pm

1 stop32h 05m

$534

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 1/18

12:49 pm-8:00 am

1 stop13h 11m

Lisbon Humberto Delgado

Mon 2/9

11:25 am-1:30 pm

1 stop32h 05m

$535

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Houston George Bush Intcntl Airport to Lisbon

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 Lisbon?

In general, February is the cheapest month to fly from Houston George Bush Intcntl Airport to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $587. If you are unable to visit Lisbon during the month of February, then departing from Houston George Bush Intcntl Airport during the month November is also very affordable. Most momondo users find prices during this month for around $646.

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

Our data shows that Sunday is the least expensive day to fly to Lisbon. Tickets to fly out on this day can be as low as $825. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Houston George Bush Intcntl Airport to Lisbon for around $1,199.

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

The cheapest time of day to fly to Lisbon is in the evening when flights can be purchased for as low as $913. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,116 on average. Flights to Lisbon from Houston George Bush Intcntl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Lisbon from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around $832 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Houston George Bush Intcntl Airport for as low as $745 on momondo.

How have Houston George Bush Intcntl Airport to Lisbon flight prices changed over time?

When to book flights from Houston George Bush Intcntl Airport to Lisbon

Are you open to changing your travel dates? Check out the ideal times to fly from Houston George Bush Intcntl Airport to Lisbon according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Houston George Bush Intcntl Airport to Lisbon (IAH to LIS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston George Bush Intcntl Airport to Lisbon

Direct flights

None
There are no direct flights from Houston George Bush Intcntl Airport to Lisbon. There are no popular flight routes from Houston George Bush Intcntl Airport to Lisbon.
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  • How far is Houston George Bush Intcntl to Lisbon Humberto Delgado by plane?

    The distance between Houston George Bush Intcntl and Lisbon Humberto Delgado is about 4768.5 mi. Typically, this will take 10h 47m by plane in normal conditions.

  • When did momondo last update prices for flights from Houston George Bush Intcntl Airport to Lisbon Humberto Delgado Airport?

    Prices for flights from Houston George Bush Intcntl Airport to Lisbon Humberto Delgado Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Houston George Bush Intcntl Airport to Lisbon Humberto Delgado Airport?

  • How old do you have to be to fly from Houston George Bush Intcntl Airport to Lisbon Humberto Delgado Airport?

    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 George Bush Intcntl Airport to Lisbon Humberto Delgado Airport.

  • What documentation or ID do you need to fly to Lisbon Humberto Delgado Airport?

    The travel and health documents you'll need for your trip to Lisbon Humberto Delgado Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lisbon Humberto Delgado Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Houston George Bush Intcntl Airport to Lisbon?

Best airlines flying from Houston George Bush Intcntl Airport to Lisbon

Compare and see reviews for airlines that fly from Houston George Bush Intcntl Airport to Lisbon with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom $549Free CancellationRating
7.4
1,487 reviews
Search Air France flights
Air CanadaPriceFrom $563Free CancellationRating
7.1
10,448 reviews
Search Air Canada flights
United AirlinesPriceFrom $570Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
American AirlinesPriceFrom $578Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
British AirwaysPriceFrom $601Free CancellationRating
6.7
7,520 reviews
Search British Airways flights
Turkish AirlinesPriceFrom $628Free CancellationRating
7.3
4,043 reviews
Search Turkish Airlines flights
DeltaPriceFrom $643Free CancellationRating
7.9
8,007 reviews
Search Delta flights
KLMPriceFrom $713Free CancellationRating
7.7
1,411 reviews
Search KLM flights

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Why use momondo?

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

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

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

Yes. momondo allows you to filter the results for Houston to Lisbon flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Lisbon from Houston.

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

Of course. momondo tracks the price of Houston to Lisbon flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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