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Cheap flights from Houston George Bush Intcntl Airport to Lisbon from $306

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 10/15. 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
1 adult, Economy, 0 bags

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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.
Multiple Airlines Logo
10:00 am - 9:20 am
IAH
-
LIS
17h 20m
1 stop
Multiple Airlines Logo
5:00 am - 2:00 pm
LIS
-
IAH
15h 00m
1 stop
$709Multiple Airlines
Tue, Oct 13 - Tue, Nov 3
Multiple Airlines Logo
12:00 pm - 9:20 am
IAH
-
LIS
15h 20m
2 stops
Multiple Airlines Logo
5:00 am - 2:00 pm
LIS
-
IAH
15h 00m
1 stop
$717Multiple Airlines
Tue, Oct 13 - Tue, Nov 3
United Airlines Logo
11:50 am - 6:55 am
IAH
-
LIS
13h 05m
1 stop
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m
1 stop
$722United Airlines
Wed, Nov 11 - Thu, Nov 19
United Airlines Logo
7:30 am - 8:10 am
IAH
-
LIS
18h 40m
1 stop
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m
1 stop
$724United Airlines
Tue, Nov 10 - Wed, Nov 18
United Airlines Logo
11:50 am - 6:55 am
IAH
-
LIS
13h 05m
1 stop
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m
1 stop
$727United Airlines
Wed, Nov 11 - Thu, Nov 19
United Airlines Logo
2:30 pm - 10:05 am
IAH
-
LIS
13h 35m
1 stop
United Airlines Logo
5:00 am - 2:00 pm
LIS
-
IAH
15h 00m
1 stop
$728United Airlines
Tue, Nov 17 - Wed, Nov 25
United Airlines Logo
7:30 am - 8:10 am
IAH
-
LIS
18h 40m
1 stop
United Airlines Logo
5:00 am - 6:15 pm
LIS
-
IAH
19h 15m
1 stop
$729United Airlines
Tue, Nov 10 - Wed, Nov 18
Air Canada Logo
6:10 pm - 6:55 am
IAH
-
LIS
30h 45m
2 stops
Air Canada Logo
5:00 am - 6:27 pm
LIS
-
IAH
19h 27m
2 stops
$730Air Canada
Tue, Nov 10 - Wed, Nov 18
United Airlines Logo
9:55 pm - 6:55 am
IAH
-
LIS
27h 00m
2 stops
United Airlines Logo
5:00 am - 2:00 pm
LIS
-
IAH
15h 00m
1 stop
$732United Airlines
Tue, Nov 10 - Wed, Nov 18
Air Canada Logo
6:10 pm - 6:55 am
IAH
-
LIS
30h 45m
2 stops
Air Canada Logo
5:00 am - 6:27 pm
LIS
-
IAH
19h 27m
2 stops
$735Air Canada
Tue, Nov 10 - Wed, Nov 18

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Lufthansa flights from Houston George Bush Intcntl Airport to Lisbon

Our best Lufthansa deals on Houston George Bush Intcntl Airport to Lisbon flight tickets
Lufthansa
Nov 17
IAH5:03 pmHouston George Bush Intcntl
24h 27m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Nov 27
LIS5:00 amLisbon Humberto Delgado
15h 00m
1 stop
IAH2:00 pmHouston George Bush Intcntl
$741
Lufthansa
Nov 17
IAH5:03 pmHouston George Bush Intcntl
24h 27m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Nov 26
LIS5:00 amLisbon Humberto Delgado
25h 30m
2 stops
IAH12:30 amHouston George Bush Intcntl
$751
Lufthansa
Nov 16
IAH6:40 pmHouston George Bush Intcntl
22h 10m
2 stops
LIS10:50 pmLisbon Humberto Delgado
Nov 27
LIS12:25 pmLisbon Humberto Delgado
18h 05m
2 stops
IAH12:30 amHouston George Bush Intcntl
$762

KLM flights from Houston George Bush Intcntl Airport to Lisbon

Our best KLM deals on Houston George Bush Intcntl Airport to Lisbon flight tickets
KLM
Nov 11
IAH11:50 amHouston George Bush Intcntl
15h 10m
2 stops
LIS9:00 amLisbon Humberto Delgado
Nov 19
LIS5:00 amLisbon Humberto Delgado
19h 17m
2 stops
IAH6:17 pmHouston George Bush Intcntl
$740
KLM
Oct 21
IAH9:42 amHouston George Bush Intcntl
16h 18m
2 stops
LIS8:00 amLisbon Humberto Delgado
Oct 27
LIS5:00 amLisbon Humberto Delgado
18h 22m
2 stops
IAH6:22 pmHouston George Bush Intcntl
$775

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 July 24, 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

Cheapest round-trip

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 10/13

10:00 am-9:20 am

1 stop17h 20m

Lisbon Humberto Delgado

Tue 11/3

5:00 am-2:00 pm

1 stop15h 00m

$709

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 10/13

12:00 pm-9:20 am

2 stops15h 20m

Lisbon Humberto Delgado

Tue 11/3

5:00 am-2:00 pm

1 stop15h 00m

$717

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 11/11

11:50 am-6:55 am

1 stop13h 05m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-6:15 pm

1 stop19h 15m

$722

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/10

7:30 am-8:10 am

1 stop18h 40m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-6:15 pm

1 stop19h 15m

$724

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 11/11

11:50 am-6:55 am

1 stop13h 05m

Lisbon Humberto Delgado

Thu 11/19

5:00 am-6:15 pm

1 stop19h 15m

$727
Quickest round-trip

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/17

2:30 pm-10:05 am

1 stop13h 35m

Lisbon Humberto Delgado

Wed 11/25

5:00 am-2:00 pm

1 stop15h 00m

$728

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/10

7:30 am-8:10 am

1 stop18h 40m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-6:15 pm

1 stop19h 15m

$729

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/10

6:10 pm-6:55 am

2 stops30h 45m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-6:27 pm

2 stops19h 27m

$730

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/10

9:55 pm-6:55 am

2 stops27h 00m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-2:00 pm

1 stop15h 00m

$732

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/10

6:10 pm-6:55 am

2 stops30h 45m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-6:27 pm

2 stops19h 27m

$735

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 typical price of a round-trip flight between Houston George Bush Intcntl Airport and Lisbon?

Prices are currently low for flights on this route.

Typical prices usually range from $1,038 to $1,258.
The lowest price recently found on this route was $709.

What is the cheapest month to fly to Lisbon?

In general, November 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 $621. If you are unable to visit Lisbon during the month of November, then departing from Houston George Bush Intcntl Airport during the month January is also very affordable. Most momondo users find prices during this month for around $705.

How far in advance should I book a flight from Houston George Bush Intcntl Airport 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 $898 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 $718 on momondo.

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

As of July 2026, prices for Houston George Bush Intcntl Airport to Lisbon flights are approximately 25% 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

11h 50m

Direct flights

None
The fastest flight from Houston George Bush Intcntl Airport to Lisbon takes 11h 50m
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

Frequently asked questions about flying from Houston George Bush Intcntl Airport to Lisbon

  • 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 11h 50m 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 $512Free CancellationRating
7.5
1,626 reviews
Search Air France flights
KLMPriceFrom $541Free CancellationRating
7.8
1,545 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.8
8,482 reviews
Search Delta flights
British AirwaysPriceFrom $559Free CancellationRating
6.7
8,132 reviews
Search British Airways flights
United AirlinesPriceFrom $581Free CancellationRating
7.4
10,032 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $621Free CancellationRating
7.4
4,455 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $646Free CancellationRating
7.1
11,383 reviews
Search Air Canada flights
LufthansaPriceFrom $719Free CancellationRating
6.8
8,156 reviews
Search Lufthansa 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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