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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 10/9. 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

United Airlines Logo
11:50 am - 9:20 amIAH-LIS
15h 30m1 stop
United Airlines Logo
10:55 am - 3:12 pmLIS-IAH
34h 17m2 stops
$577United Airlines
Find Deal
Tue, Nov 11 - Thu, Dec 4
United Airlines Logo
7:05 am - 9:20 amIAH-LIS
20h 15m2 stops
United Airlines Logo
10:55 am - 3:12 pmLIS-IAH
34h 17m2 stops
$581United Airlines
Find Deal
Tue, Nov 11 - Thu, Dec 4
United Airlines Logo
8:05 am - 9:20 amIAH-LIS
19h 15m2 stops
United Airlines Logo
10:55 am - 3:12 pmLIS-IAH
34h 17m2 stops
$582United Airlines
Find Deal
Tue, Nov 11 - Thu, Dec 4
United Airlines Logo
11:50 am - 9:20 amIAH-LIS
15h 30m1 stop
United Airlines Logo
5:00 am - 6:15 pmLIS-IAH
19h 15m1 stop
$583United Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 25
Air Canada Logo
11:50 am - 9:20 amIAH-LIS
15h 30m1 stop
Air Canada Logo
5:00 am - 6:38 pmLIS-IAH
19h 38m2 stops
$589Air Canada
Find Deal
Tue, Nov 18 - Tue, Nov 25
Air Canada Logo
11:50 am - 9:20 amIAH-LIS
15h 30m1 stop
Air Canada Logo
10:55 am - 9:39 pmLIS-IAH
16h 44m1 stop
$590Air Canada
Find Deal
Tue, Nov 11 - Thu, Dec 4
Delta Logo
11:50 am - 9:00 amIAH-LIS
15h 10m2 stops
Delta Logo
11:25 am - 1:30 pmLIS-IAH
32h 05m1 stop
$624Delta
Find Deal
Mon, Nov 24 - Mon, Dec 1
British Airways Logo
1:17 pm - 12:05 pmIAH-LIS
16h 48m2 stops
British Airways Logo
6:30 am - 9:30 pmLIS-IAH
21h 00m2 stops
$651British Airways
Find Deal
Tue, Nov 25 - Sat, Dec 6
Delta Logo
12:37 pm - 8:00 amIAH-LIS
13h 23m1 stop
Delta Logo
5:30 am - 2:55 pmLIS-IAH
14h 25m1 stop
$655Delta
Find Deal
Tue, Oct 21 - Sat, Nov 1
American Airlines Logo
9:39 am - 7:55 amIAH-LIS
16h 16m2 stops
American Airlines Logo
11:10 am - 12:30 amLIS-IAH
19h 20m2 stops
$658American Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18

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 23
IAH4:30 pmHouston George Bush Intcntl
24h 20m
1 stop
LIS10:50 pmLisbon Humberto Delgado
Dec 1
LIS3:55 pmLisbon Humberto Delgado
28h 40m
1 stop
IAH2:35 pmHouston George Bush Intcntl
$627
Find similar
Lufthansa
Nov 23
IAH4:30 pmHouston George Bush Intcntl
25h 00m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Dec 1
LIS12:30 pmLisbon Humberto Delgado
32h 05m
1 stop
IAH2:35 pmHouston George Bush Intcntl
$649
Find similar
Lufthansa
Nov 23
IAH4:30 pmHouston George Bush Intcntl
25h 00m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Dec 1
LIS2:10 pmLisbon Humberto Delgado
30h 25m
2 stops
IAH2:35 pmHouston George Bush Intcntl
$671
Find similar

British Airways flights from Houston George Bush Intcntl Airport to Lisbon

Our best British Airways deals on Houston George Bush Intcntl Airport to Lisbon flight tickets
British Airways
Nov 25
IAH1:17 pmHouston George Bush Intcntl
16h 48m
2 stops
LIS12:05 pmLisbon Humberto Delgado
Dec 6
LIS6:30 amLisbon Humberto Delgado
21h 00m
2 stops
IAH9:30 pmHouston George Bush Intcntl
$651
Find similar
British Airways
Aug 17
IAH11:57 amHouston George Bush Intcntl
15h 08m
1 stop
LIS9:05 amLisbon Humberto Delgado
Aug 25
LIS4:45 pmLisbon Humberto Delgado
34h 05m
2 stops
IAH8:50 pmHouston George Bush Intcntl
$1,207
Find similar
British Airways
Aug 12
IAH1:10 pmHouston George Bush Intcntl
20h 20m
2 stops
LIS3:30 pmLisbon Humberto Delgado
Aug 18
LIS8:45 pmLisbon Humberto Delgado
33h 38m
2 stops
IAH12:23 amHouston George Bush Intcntl
$1,220
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 August 5, 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

Tue 11/11

11:50 am-9:20 am

1 stop15h 30m

Lisbon Humberto Delgado

Thu 12/4

10:55 am-3:12 pm

2 stops34h 17m

$577

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/11

7:05 am-9:20 am

2 stops20h 15m

Lisbon Humberto Delgado

Thu 12/4

10:55 am-3:12 pm

2 stops34h 17m

$581

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/11

8:05 am-9:20 am

2 stops19h 15m

Lisbon Humberto Delgado

Thu 12/4

10:55 am-3:12 pm

2 stops34h 17m

$582

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/18

11:50 am-9:20 am

1 stop15h 30m

Lisbon Humberto Delgado

Tue 11/25

5:00 am-6:15 pm

1 stop19h 15m

$583

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/18

11:50 am-9:20 am

1 stop15h 30m

Lisbon Humberto Delgado

Tue 11/25

5:00 am-6:38 pm

2 stops19h 38m

$589

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/11

11:50 am-9:20 am

1 stop15h 30m

Lisbon Humberto Delgado

Thu 12/4

10:55 am-9:39 pm

1 stop16h 44m

$590

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Mon 11/24

11:50 am-9:00 am

2 stops15h 10m

Lisbon Humberto Delgado

Mon 12/1

11:25 am-1:30 pm

1 stop32h 05m

$624

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/25

1:17 pm-12:05 pm

2 stops16h 48m

Lisbon Humberto Delgado

Sat 12/6

6:30 am-9:30 pm

2 stops21h 00m

$651

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 10/21

12:37 pm-8:00 am

1 stop13h 23m

Lisbon Humberto Delgado

Sat 11/1

5:30 am-2:55 pm

1 stop14h 25m

$655

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Fri 11/14

9:39 am-7:55 am

2 stops16h 16m

Lisbon Humberto Delgado

Tue 11/18

11:10 am-12:30 am

2 stops19h 20m

$658

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?

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 $595. If you are unable to visit Lisbon during the month of February, 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 $676.

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 $862 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 $751 on momondo.

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

As of August 2025, prices for Houston George Bush Intcntl Airport to Lisbon flights are approximately 59% cheaper 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

Best Price Found

$306

Fastest flight time

11h 32m

Direct flights

None

Airports in Lisbon

1 airport
The best one-way flight to Lisbon from Houston George Bush Intcntl Airport in the past 72 hours is $306. The best round-trip flight deal from Houston George Bush Intcntl Airport to Lisbon found on momondo in the last 72 hours is $577.
The fastest flight from Houston George Bush Intcntl Airport to Lisbon takes 11h 32m
There are no direct flights from Houston George Bush Intcntl Airport to Lisbon. Popular non-direct route for this connection is Houston George Bush Intcntl Airport - Lisbon Humberto Delgado Airport.
There is 1 airport near Lisbon: Lisbon Humberto Delgado (LIS)
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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 11h 32m 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
7.5
1,466 reviews
Search Air France flights
Air CanadaPriceFrom $563Free CancellationRating
7.1
9,879 reviews
Search Air Canada flights
DeltaPriceFrom $573Free CancellationRating
8.0
7,987 reviews
Search Delta flights
American AirlinesPriceFrom $578Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $585Free CancellationRating
6.6
7,235 reviews
Search British Airways flights
United AirlinesPriceFrom $586Free CancellationRating
7.4
8,912 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $637Free CancellationRating
7.3
3,935 reviews
Search Turkish Airlines flights
KLMPriceFrom $713Free CancellationRating
7.8
1,381 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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