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Cheap flights from Houston George Bush Intcntl Airport to Lisbon from $257

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 11/10. 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
5:00 am - 6:15 pmLIS-IAH
19h 15m1 stop
$604United Airlines
Find Deal
Thu, Nov 13 - Wed, Nov 19
Multiple Airlines Logo
11:49 am - 9:50 amIAH-LIS
16h 01m2 stops
Multiple Airlines Logo
5:00 am - 1:15 pmLIS-IAH
14h 15m1 stop
$605Multiple Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Delta Logo
3:50 pm - 2:50 pmIAH-LIS
17h 00m1 stop
Delta Logo
5:30 am - 2:55 pmLIS-IAH
14h 25m1 stop
$606Delta
Find Deal
Tue, Oct 21 - Thu, Oct 30
Air France Logo
3:50 pm - 2:50 pmIAH-LIS
17h 00m1 stop
Air France Logo
6:50 pm - 1:35 pmLIS-IAH
24h 45m1 stop
$607Air France
Find Deal
Mon, Oct 13 - Mon, Oct 20
United Airlines Logo
7:20 am - 9:20 amIAH-LIS
20h 00m2 stops
United Airlines Logo
5:00 am - 6:15 pmLIS-IAH
19h 15m1 stop
$609United Airlines
Find Deal
Thu, Nov 13 - Wed, Nov 19
Air France Logo
11:49 am - 9:50 amIAH-LIS
16h 01m2 stops
Air France Logo
5:30 am - 2:55 pmLIS-IAH
14h 25m1 stop
$611Air France
Find Deal
Tue, Oct 21 - Thu, Oct 30
Air Canada Logo
6:26 pm - 9:20 amIAH-LIS
56h 54m2 stops
Air Canada Logo
11:20 am - 11:09 amLIS-IAH
29h 49m2 stops
$614Air Canada
Find Deal
Sun, Nov 2 - Tue, Nov 18
Air Canada Logo
6:26 pm - 9:20 amIAH-LIS
56h 54m2 stops
Air Canada Logo
11:20 am - 11:09 amLIS-IAH
29h 49m2 stops
$616Air Canada
Find Deal
Sun, Nov 2 - Tue, Nov 18
Delta Logo
5:10 am - 8:55 amIAH-LIS
21h 45m2 stops
Delta Logo
11:25 am - 11:57 pmLIS-IAH
18h 32m2 stops
$621Delta
Find Deal
Sun, Dec 14 - Thu, Dec 25
British Airways Logo
3:50 pm - 12:05 pmIAH-LIS
14h 15m1 stop
British Airways Logo
6:40 pm - 3:05 pmLIS-IAH
25h 25m1 stop
$629British Airways
Find Deal
Sun, Mar 1 - Sun, Mar 15

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
Oct 21
IAH3:50 pmHouston George Bush Intcntl
17h 00m
1 stop
LIS2:50 pmLisbon Humberto Delgado
Oct 30
LIS5:30 amLisbon Humberto Delgado
14h 25m
1 stop
IAH2:55 pmHouston George Bush Intcntl
$606
Find similar
Delta
Dec 14
IAH5:10 amHouston George Bush Intcntl
21h 45m
2 stops
LIS8:55 amLisbon Humberto Delgado
Dec 25
LIS11:25 amLisbon Humberto Delgado
18h 32m
2 stops
IAH11:57 pmHouston George Bush Intcntl
$621
Find similar
Delta
Dec 14
IAH10:05 amHouston George Bush Intcntl
16h 50m
1 stop
LIS8:55 amLisbon Humberto Delgado
Dec 26
LIS5:30 amLisbon Humberto Delgado
14h 25m
1 stop
IAH1:55 pmHouston George Bush Intcntl
$652
Find similar

Air France flights from Houston George Bush Intcntl Airport to Lisbon

Our best Air France deals on Houston George Bush Intcntl Airport to Lisbon flight tickets
Air France
Oct 13
IAH3:50 pmHouston George Bush Intcntl
17h 00m
1 stop
LIS2:50 pmLisbon Humberto Delgado
Oct 20
LIS6:50 pmLisbon Humberto Delgado
24h 45m
1 stop
IAH1:35 pmHouston George Bush Intcntl
$607
Find similar
Air France
Oct 21
IAH11:49 amHouston George Bush Intcntl
16h 01m
2 stops
LIS9:50 amLisbon Humberto Delgado
Oct 30
LIS5:30 amLisbon Humberto Delgado
14h 25m
1 stop
IAH2:55 pmHouston George Bush Intcntl
$611
Find similar
Air France
Oct 19
IAH3:50 pmHouston George Bush Intcntl
20h 00m
1 stop
LIS5:50 pmLisbon Humberto Delgado
Nov 1
LIS4:10 pmLisbon Humberto Delgado
27h 45m
1 stop
IAH2:55 pmHouston George Bush Intcntl
$624
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 September 25, 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 11/13

11:50 am-9:20 am

1 stop15h 30m

Lisbon Humberto Delgado

Wed 11/19

5:00 am-6:15 pm

1 stop19h 15m

$604

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 10/14

11:49 am-9:50 am

2 stops16h 01m

Lisbon Humberto Delgado

Tue 10/21

5:00 am-1:15 pm

1 stop14h 15m

$605

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 10/21

3:50 pm-2:50 pm

1 stop17h 00m

Lisbon Humberto Delgado

Thu 10/30

5:30 am-2:55 pm

1 stop14h 25m

$606

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Mon 10/13

3:50 pm-2:50 pm

1 stop17h 00m

Lisbon Humberto Delgado

Mon 10/20

6:50 pm-1:35 pm

1 stop24h 45m

$607

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 11/13

7:20 am-9:20 am

2 stops20h 00m

Lisbon Humberto Delgado

Wed 11/19

5:00 am-6:15 pm

1 stop19h 15m

$609

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 10/21

11:49 am-9:50 am

2 stops16h 01m

Lisbon Humberto Delgado

Thu 10/30

5:30 am-2:55 pm

1 stop14h 25m

$611

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 11/2

6:26 pm-9:20 am

2 stops56h 54m

Lisbon Humberto Delgado

Tue 11/18

11:20 am-11:09 am

2 stops29h 49m

$614

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 11/2

6:26 pm-9:20 am

2 stops56h 54m

Lisbon Humberto Delgado

Tue 11/18

11:20 am-11:09 am

2 stops29h 49m

$616

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 12/14

5:10 am-8:55 am

2 stops21h 45m

Lisbon Humberto Delgado

Thu 12/25

11:25 am-11:57 pm

2 stops18h 32m

$621

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 3/1

3:50 pm-12:05 pm

1 stop14h 15m

Lisbon Humberto Delgado

Sun 3/15

6:40 pm-3:05 pm

1 stop25h 25m

$629

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 $588. 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 $621.

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 $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 $748 on momondo.

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

As of September 2025, prices for Houston George Bush Intcntl Airport to Lisbon flights are approximately 35% 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

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 11h 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 $549Free CancellationRating
7.4
1,465 reviews
Search Air France flights
Air CanadaPriceFrom $563Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom $575Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
American AirlinesPriceFrom $578Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $585Free CancellationRating
6.7
7,399 reviews
Search British Airways flights
DeltaPriceFrom $620Free CancellationRating
7.9
7,973 reviews
Search Delta flights
Turkish AirlinesPriceFrom $637Free CancellationRating
7.3
3,976 reviews
Search Turkish Airlines flights
KLMPriceFrom $713Free CancellationRating
7.8
1,391 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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