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Cheap flights from Houston George Bush Intcntl Airport to Lisbon from $341

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 11/8. 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
3:20 pm - 10:55 am
IAH
-
LIS
13h 35m
1 stop
Multiple Airlines Logo
6:50 pm - 1:40 pm
LIS
-
IAH
24h 50m
1 stop
$958Multiple Airlines
Thu, Oct 15 - Sun, Oct 18
Air Canada Logo
12:10 pm - 9:50 am
IAH
-
LIS
15h 40m
1 stop
Air Canada Logo
11:20 am - 9:39 pm
LIS
-
IAH
16h 19m
1 stop
$959Air Canada
Thu, Nov 19 - Sat, Nov 28
Delta Logo
12:55 pm - 3:10 pm
IAH
-
LIS
20h 15m
2 stops
Delta Logo
5:00 am - 9:10 pm
LIS
-
IAH
22h 10m
2 stops
$960Delta
Sat, Dec 5 - Sat, Jan 9
United Airlines Logo
12:10 pm - 9:50 am
IAH
-
LIS
15h 40m
1 stop
United Airlines Logo
5:00 am - 2:00 pm
LIS
-
IAH
15h 00m
1 stop
$961United Airlines
Fri, Nov 20 - Tue, Dec 1
Turkish Airlines Logo
9:00 pm - 3:10 pm
IAH
-
LIS
36h 10m
1 stop
Turkish Airlines Logo
4:10 pm - 7:05 pm
LIS
-
IAH
32h 55m
1 stop
$963Turkish Airlines
Sat, Nov 21 - Mon, Nov 30
Multiple Airlines Logo
11:30 am - 8:00 am
IAH
-
LIS
14h 30m
2 stops
Multiple Airlines Logo
5:00 am - 4:35 pm
LIS
-
IAH
17h 35m
2 stops
$964Multiple Airlines
Fri, Nov 27 - Mon, Dec 7
United Airlines Logo
10:00 am - 9:20 am
IAH
-
LIS
17h 20m
1 stop
United Airlines Logo
5:05 am - 5:55 pm
LIS
-
IAH
18h 50m
1 stop
$965United Airlines
Wed, Aug 26 - Fri, Sep 4
Multiple Airlines Logo
10:00 am - 9:20 am
IAH
-
LIS
17h 20m
1 stop
Multiple Airlines Logo
5:55 am - 7:52 pm
LIS
-
IAH
19h 57m
2 stops
$966Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
United Airlines Logo
10:00 am - 9:20 am
IAH
-
LIS
17h 20m
1 stop
United Airlines Logo
11:25 am - 11:46 am
LIS
-
IAH
30h 21m
2 stops
$967United Airlines
Wed, Jul 29 - Wed, Aug 12
British Airways Logo
9:10 pm - 11:05 pm
IAH
-
LIS
19h 55m
1 stop
British Airways Logo
6:45 pm - 1:25 pm
LIS
-
IAH
24h 40m
1 stop
$968British Airways
Sun, Jul 5 - Tue, Jul 21

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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
Aug 26
IAH10:00 amHouston George Bush Intcntl
17h 20m
1 stop
LIS9:20 amLisbon Humberto Delgado
Sep 4
LIS5:05 amLisbon Humberto Delgado
18h 50m
1 stop
IAH5:55 pmHouston George Bush Intcntl
$965
United Airlines
Jul 7
IAH10:00 amHouston George Bush Intcntl
17h 20m
1 stop
LIS9:20 amLisbon Humberto Delgado
Jul 14
LIS11:25 amLisbon Humberto Delgado
30h 26m
2 stops
IAH11:51 amHouston George Bush Intcntl
$967
United Airlines
Aug 26
IAH5:15 amHouston George Bush Intcntl
23h 50m
2 stops
LIS11:05 amLisbon Humberto Delgado
Sep 4
LIS5:05 amLisbon Humberto Delgado
18h 50m
1 stop
IAH5:55 pmHouston George Bush Intcntl
$970

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
Dec 5
IAH9:40 amHouston George Bush Intcntl
19h 40m
2 stops
LIS11:20 amLisbon Humberto Delgado
Jan 9
LIS5:00 amLisbon Humberto Delgado
22h 10m
2 stops
IAH9:10 pmHouston George Bush Intcntl
$960
Delta
Aug 4
IAH4:52 pmHouston George Bush Intcntl
18h 58m
2 stops
LIS5:50 pmLisbon Humberto Delgado
Aug 19
LIS5:00 amLisbon Humberto Delgado
18h 40m
2 stops
IAH5:40 pmHouston George Bush Intcntl
$973
Delta
Jul 13
IAH5:05 pmHouston George Bush Intcntl
15h 50m
1 stop
LIS2:55 pmLisbon Humberto Delgado
Jul 22
LIS11:55 amLisbon Humberto Delgado
18h 02m
2 stops
IAH11:57 pmHouston George Bush Intcntl
$977

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 June 8, 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

Thu 10/15

3:20 pm-10:55 am

1 stop13h 35m

Lisbon Humberto Delgado

Sun 10/18

6:50 pm-1:40 pm

1 stop24h 50m

$958

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 11/19

12:10 pm-9:50 am

1 stop15h 40m

Lisbon Humberto Delgado

Sat 11/28

11:20 am-9:39 pm

1 stop16h 19m

$959

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sat 12/5

12:55 pm-3:10 pm

2 stops20h 15m

Lisbon Humberto Delgado

Sat 1/9

5:00 am-9:10 pm

2 stops22h 10m

$960
Quickest round-trip

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Fri 11/20

12:10 pm-9:50 am

1 stop15h 40m

Lisbon Humberto Delgado

Tue 12/1

5:00 am-2:00 pm

1 stop15h 00m

$961

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sat 11/21

9:00 pm-3:10 pm

1 stop36h 10m

Lisbon Humberto Delgado

Mon 11/30

4:10 pm-7:05 pm

1 stop32h 55m

$963

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Fri 11/27

11:30 am-8:00 am

2 stops14h 30m

Lisbon Humberto Delgado

Mon 12/7

5:00 am-4:35 pm

2 stops17h 35m

$964

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 8/26

10:00 am-9:20 am

1 stop17h 20m

Lisbon Humberto Delgado

Fri 9/4

5:05 am-5:55 pm

1 stop18h 50m

$965

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 9/17

10:00 am-9:20 am

1 stop17h 20m

Lisbon Humberto Delgado

Thu 9/24

5:55 am-7:52 pm

2 stops19h 57m

$966

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Wed 7/29

10:00 am-9:20 am

1 stop17h 20m

Lisbon Humberto Delgado

Wed 8/12

11:25 am-11:46 am

2 stops30h 21m

$967

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 7/5

9:10 pm-11:05 pm

1 stop19h 55m

Lisbon Humberto Delgado

Tue 7/21

6:45 pm-1:25 pm

1 stop24h 40m

$968

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, 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 $618. 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 $891 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 $656 on momondo.

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

As of June 2026, prices for Houston George Bush Intcntl Airport to Lisbon flights are approximately 41% 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

13h 30m

Direct flights

None
The fastest flight from Houston George Bush Intcntl Airport to Lisbon takes 13h 30m
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 13h 30m 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
1,598 reviews
Search Air France flights
KLMPriceFrom $541Free CancellationRating
7.8
1,527 reviews
Search KLM flights
DeltaPriceFrom $541Free CancellationRating
7.9
8,395 reviews
Search Delta flights
British AirwaysPriceFrom $559Free CancellationRating
6.7
8,029 reviews
Search British Airways flights
United AirlinesPriceFrom $581Free CancellationRating
7.4
9,785 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $621Free CancellationRating
7.4
4,409 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $646Free CancellationRating
7.1
11,147 reviews
Search Air Canada 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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