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Cheap flights from Houston George Bush Intcntl Airport to Lisbon from $279

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.
KLM Logo
12:38 pm - 8:00 am
IAH
-
LIS
13h 22m1 stop
KLM Logo
3:35 pm - 1:15 pm
LIS
-
IAH
27h 40m1 stop
$501KLM
Wed, Apr 15 - Mon, Apr 20
United Airlines Logo
11:55 am - 8:10 am
IAH
-
LIS
14h 15m1 stop
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m1 stop
$504United Airlines
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
5:05 pm - 5:30 pm
IAH
-
LIS
19h 25m1 stop
Multiple Airlines Logo
3:35 pm - 1:15 pm
LIS
-
IAH
27h 40m1 stop
$505Multiple Airlines
Tue, Mar 24 - Tue, Apr 14
Delta Logo
3:50 pm - 5:50 pm
IAH
-
LIS
20h 00m1 stop
Delta Logo
5:00 am - 1:15 pm
LIS
-
IAH
14h 15m1 stop
$506Delta
Tue, Apr 7 - Fri, Apr 17
United Airlines Logo
8:00 pm - 9:20 am
IAH
-
LIS
31h 20m2 stops
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m1 stop
$507United Airlines
Mon, Feb 2 - Wed, Feb 11
United Airlines Logo
10:06 am - 8:10 am
IAH
-
LIS
16h 04m2 stops
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m1 stop
$509United Airlines
Sun, Feb 8 - Fri, Feb 27
Delta Logo
12:40 pm - 5:50 pm
IAH
-
LIS
23h 10m2 stops
Delta Logo
11:55 am - 1:15 pm
LIS
-
IAH
31h 20m1 stop
$510Delta
Tue, Apr 7 - Mon, Apr 13
Multiple Airlines Logo
12:47 pm - 11:20 am
IAH
-
LIS
16h 33m2 stops
Multiple Airlines Logo
11:25 am - 1:30 pm
LIS
-
IAH
32h 05m1 stop
$511Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Air France Logo
4:05 pm - 3:10 pm
IAH
-
LIS
17h 05m1 stop
Air France Logo
6:30 pm - 1:55 pm
LIS
-
IAH
25h 25m1 stop
$512Air France
Wed, Feb 18 - Mon, Feb 23
Delta Logo
3:50 pm - 11:15 am
IAH
-
LIS
13h 25m1 stop
Delta Logo
5:00 am - 5:51 pm
LIS
-
IAH
18h 51m2 stops
$515Delta
Wed, Apr 8 - Fri, Apr 17

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 18
IAH10:31 amHouston George Bush Intcntl
15h 39m
1 stop
LIS8:10 amLisbon Humberto Delgado
Feb 3
LIS5:00 amLisbon Humberto Delgado
19h 15m
1 stop
IAH6:15 pmHouston George Bush Intcntl
$499
United Airlines
Jan 18
IAH10:31 amHouston George Bush Intcntl
15h 39m
1 stop
LIS8:10 amLisbon Humberto Delgado
Feb 3
LIS5:00 amLisbon Humberto Delgado
19h 15m
1 stop
IAH6:15 pmHouston George Bush Intcntl
$500
United Airlines
Feb 24
IAH11:55 amHouston George Bush Intcntl
14h 15m
1 stop
LIS8:10 amLisbon Humberto Delgado
Mar 3
LIS5:00 amLisbon Humberto Delgado
19h 15m
1 stop
IAH6:15 pmHouston George Bush Intcntl
$504

Delta flights from Houston George Bush Intcntl Airport to Lisbon

Our best Delta deals on Houston George Bush Intcntl Airport to Lisbon flight tickets
Delta
Apr 7
IAH3:50 pmHouston George Bush Intcntl
20h 00m
1 stop
LIS5:50 pmLisbon Humberto Delgado
Apr 17
LIS5:00 amLisbon Humberto Delgado
14h 15m
1 stop
IAH1:15 pmHouston George Bush Intcntl
$506
Delta
Jan 18
IAH7:15 amHouston George Bush Intcntl
18h 45m
2 stops
LIS8:00 amLisbon Humberto Delgado
Feb 3
LIS5:00 amLisbon Humberto Delgado
19h 46m
2 stops
IAH6:46 pmHouston George Bush Intcntl
$507
Delta
Jan 18
IAH7:15 amHouston George Bush Intcntl
18h 45m
2 stops
LIS8:00 amLisbon Humberto Delgado
Feb 3
LIS5:00 amLisbon Humberto Delgado
19h 46m
2 stops
IAH6:46 pmHouston George Bush Intcntl
$508

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 January 11, 2026.
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

Wed 4/15

12:38 pm-8:00 am

1 stop13h 22m

Lisbon Humberto Delgado

Mon 4/20

3:35 pm-1:15 pm

1 stop27h 40m

$501

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 2/24

11:55 am-8:10 am

1 stop14h 15m

Lisbon Humberto Delgado

Tue 3/3

5:00 am-6:15 pm

1 stop19h 15m

$504

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 3/24

5:05 pm-5:30 pm

1 stop19h 25m

Lisbon Humberto Delgado

Tue 4/14

3:35 pm-1:15 pm

1 stop27h 40m

$505

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 4/7

3:50 pm-5:50 pm

1 stop20h 00m

Lisbon Humberto Delgado

Fri 4/17

5:00 am-1:15 pm

1 stop14h 15m

$506

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Mon 2/2

8:00 pm-9:20 am

2 stops31h 20m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-6:15 pm

1 stop19h 15m

$507

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 2/8

10:06 am-8:10 am

2 stops16h 04m

Lisbon Humberto Delgado

Fri 2/27

5:00 am-6:15 pm

1 stop19h 15m

$509

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 4/7

12:40 pm-5:50 pm

2 stops23h 10m

Lisbon Humberto Delgado

Mon 4/13

11:55 am-1:15 pm

1 stop31h 20m

$510

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 1/28

12:47 pm-11:20 am

2 stops16h 33m

Lisbon Humberto Delgado

Wed 2/4

11:25 am-1:30 pm

1 stop32h 05m

$511

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 2/18

4:05 pm-3:10 pm

1 stop17h 05m

Lisbon Humberto Delgado

Mon 2/23

6:30 pm-1:55 pm

1 stop25h 25m

$512

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 4/8

3:50 pm-11:15 am

1 stop13h 25m

Lisbon Humberto Delgado

Fri 4/17

5:00 am-5:51 pm

2 stops18h 51m

$515

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 Lisbon from

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 $625. 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 $631.

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 $834 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 $742 on momondo.

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

As of January 2026, prices for Houston George Bush Intcntl Airport to Lisbon flights are approximately 101% more expensive when compared to flights at the same time last year.

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

Fastest flight time

12h 35m

Direct flights

None
The fastest flight from Houston George Bush Intcntl Airport to Lisbon takes 12h 35m
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.
Search flight deals

  • 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 12h 35m 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 $540Free CancellationRating
7.4
1,518 reviews
Search Air France flights
DeltaPriceFrom $546Free CancellationRating
7.9
8,034 reviews
Search Delta flights
British AirwaysPriceFrom $558Free CancellationRating
6.7
7,666 reviews
Search British Airways flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
9,144 reviews
Search United Airlines flights
KLMPriceFrom $595Free CancellationRating
7.7
1,436 reviews
Search KLM flights
Turkish AirlinesPriceFrom $621Free CancellationRating
7.3
4,153 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $646Free CancellationRating
7.1
10,616 reviews
Search Air Canada flights
American AirlinesPriceFrom $699Free CancellationRating
7.2
11,105 reviews
Search American Airlines 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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