HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lisbon

$268+ Cheap flights from George Bush Intcntl (IAH) to Lisbon (LIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LIS
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from George Bush Intcntl to Lisbon with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Houston George Bush Intcntl to Lisbon Humberto Delgado are usually found in February or January, booked 70 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from George Bush Intcntl to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 12, 2025.

Round-trip from

$828
(Mytrip)

One-way from

$268
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,175
From Houston George Bush Intcntl to Lisbon Humberto Delgado
Search Deals
One-way flight from Houston George Bush Intcntl to Lisbon Humberto Delgado
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($162 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from George Bush Intcntl to Lisbon

Cheapest flights from George Bush Intcntl to Lisbon
Explore the most affordable flight options available from George Bush Intcntl to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/47:20 amIAH - LIS
3 stops21h 00mMultiple Airlines
mar. 8/197:05 amLIS - IAH
3 stops21h 02mMultiple Airlines
Deal found 6/12$828
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/137:20 amIAH - LIS
1 stop21h 45mUnited Airlines
jue. 7/3112:20 pmLIS - IAH
2 stops26h 27mUnited Airlines
Deal found 6/12$935
This Iberia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/217:25 pmIAH - LIS
2 stops18h 40mIberia
dom. 9/286:35 amLIS - IAH
2 stops22h 45mIberia
Deal found 6/11$936
This Iberia deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:55 pmIAH - LIS
1 stop14h 15mBritish Airways
sáb. 1/311:00 amLIS - IAH
1 stop15h 00mBritish Airways
Deal found 6/11$937
This Air Canada deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/2512:05 pmIAH - LIS
2 stops38h 40mAir Canada
lun. 1/511:45 amLIS - IAH
2 stops39h 34mAir Canada
Deal found 6/11$938
This Gurufare deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/254:30 pmIAH - LIS
1 stop16h 35mLufthansa
lun. 1/53:55 pmLIS - IAH
1 stop28h 40mLufthansa
Deal found 6/11$939
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/1612:39 pmIAH - LIS
2 stops20h 11mDelta
jue. 7/245:40 amLIS - IAH
2 stops18h 18mDelta
Deal found 6/10$958
This Ovago deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/129:40 pmIAH - LIS
1 stop19h 25mFinnair
vie. 10/176:35 amLIS - IAH
2 stops41h 06mFinnair
Deal found 6/12$967
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/227:05 amIAH - LIS
1 stop20h 00mAmerican Airlines
jue. 8/711:05 amLIS - IAH
2 stops18h 14mAmerican Airlines
Deal found 6/10$983
This KLM deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/83:30 pmIAH - LIS
1 stop21h 10mKLM
mié. 7/165:00 amLIS - IAH
1 stop14h 15mKLM
Deal found 6/11$989
This Air France deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/293:50 pmIAH - LIS
1 stop20h 00mAir France
dom. 9/76:50 pmLIS - IAH
1 stop24h 45mAir France
Deal found 6/11$1,074
This Austrian Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/203:55 pmIAH - LIS
2 stops48h 25mAustrian Airlines
mié. 12/32:20 pmLIS - IAH
2 stops30h 20mAustrian Airlines
Deal found 6/11$1,077

Cheapflights Fare Finder

Customize your flight search to find flights from George Bush Intcntl 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, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 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

George Bush Intcntl

Fly to

Lisbon

Route

Depart

Return

Price

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

lun. 8/4

7:20 am-10:20 am

3 stops21h 00m

Lisbon Humberto Delgado

mar. 8/19

7:05 am-10:07 pm

3 stops21h 02m

$828

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

dom. 7/13

7:20 am-11:05 am

1 stop21h 45m

Lisbon Humberto Delgado

jue. 7/31

12:20 pm-8:47 am

2 stops26h 27m

$935

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

dom. 9/21

7:25 pm-8:05 pm

2 stops18h 40m

Lisbon Humberto Delgado

dom. 9/28

6:35 am-11:20 pm

2 stops22h 45m

$936

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

lun. 7/7

3:26 pm-9:05 am

1 stop11h 39m

Lisbon Humberto Delgado

mié. 7/16

6:40 pm-1:40 pm

1 stop25h 00m

$947

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

mié. 10/8

10:00 am-9:20 am

1 stop17h 20m

Lisbon Humberto Delgado

mar. 10/14

11:25 am-10:09 pm

2 stops16h 44m

$956

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

mié. 7/16

12:39 pm-2:50 pm

2 stops20h 11m

Lisbon Humberto Delgado

jue. 7/24

5:40 am-5:58 pm

2 stops18h 18m

$958

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

lun. 7/7

6:40 pm-10:05 pm

2 stops21h 25m

Lisbon Humberto Delgado

mié. 7/16

5:05 am-12:40 am

2 stops25h 35m

$962

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

dom. 10/12

9:40 pm-11:05 pm

1 stop19h 25m

Lisbon Humberto Delgado

vie. 10/17

6:35 am-5:41 pm

2 stops41h 06m

$967

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

mar. 7/22

7:05 am-9:05 am

1 stop20h 00m

Lisbon Humberto Delgado

jue. 8/7

11:05 am-11:19 pm

2 stops18h 14m

$983

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

mar. 7/8

3:30 pm-6:40 pm

1 stop21h 10m

Lisbon Humberto Delgado

mié. 7/16

5:00 am-1:15 pm

1 stop14h 15m

$989

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 28 results
1
2
3

Best time to book a flight from George Bush Intcntl to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from George Bush Intcntl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Houston George Bush Intcntl Airport to Lisbon

How far ahead should I book a flight from Houston George Bush Intcntl Airport to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Lisbon. Price data was last updated on June 9, 2025.

The price you pay for your flight from Houston George Bush Intcntl Airport to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Lisbon?

Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Lisbon (average of $612). Flying from Houston George Bush Intcntl Airport to Lisbon in June is currently the most expensive (average of $1,136). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAH to LIS?

Find hourly flight availability from George Bush Intcntl to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

When flying from Houston George Bush Intcntl Airport to Lisbon, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 13% versus a flight at noon.

What is the cheapest day to fly from Houston George Bush Intcntl Airport to Lisbon?

Use this chart to determine the cheapest time to fly round-trip from George Bush Intcntl to Lisbon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Houston George Bush Intcntl Airport to Lisbon flight should consider departing on Thursday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated junio 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Austrian Airlines from Houston to Lisbon to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from George Bush Intcntl to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Lisbon from Houston George Bush Intcntl?

    For a flight from Houston George Bush Intcntl to Lisbon, you will be flying into Humberto Delgado. Lisbon Humberto Delgado (LIS) is just 4.2 mi from the center of the city. Humberto Delgado is the only Lisbon airport and it handles 0 inbound flights from Houston George Bush Intcntl per day. 8 airlines have flights to Lisbon Humberto Delgado from Houston George Bush Intcntl on a regular basis.

  • What are the cheapest airlines flying from Houston George Bush Intcntl Airport to Lisbon round-trip?

    Flying on United Airlines is currently your cheapest option to Lisbon, with prices starting at $935. Additional round-trip tickets that might be worth considering are offered by Iberia and British Airways, with the lowest prices starting at $936 and $947, respectively.

  • What are the cheapest airlines to fly from Houston George Bush Intcntl Airport to Lisbon one-way?

    The cheapest airlines for a one-way flight from Houston George Bush Intcntl Airport to Lisbon are British Airways ($463), United Airlines ($468), and Air Canada ($470).

  • Can I find deals for flights from George Bush Intcntl to Lisbon that include hotel bookings?

    Yes. In addition to deals on George Bush Intcntl to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from George Bush Intcntl to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from George Bush Intcntl to Lisbon.

  • Can I find deals for business class flights from George Bush Intcntl to Lisbon?

    Yes. Cheapflights offers flight deals from George Bush Intcntl to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston George Bush Intcntl Airport to Lisbon?

    Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Lisbon (average of $612). Flying from Houston George Bush Intcntl Airport to Lisbon in June is currently the most expensive (average of $1,136). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Sintra
Beja
Nazaré
Ericeira
Costa da Caparica
Evora
Torres Vedras
Oeiras
Sesimbra
Fátima

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for George Bush Intcntl to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.
Hobby to Lisbon flights
Hobby to Porto flights
George Bush Intcntl to Porto flights
Hobby to Funchal flights
George Bush Intcntl to Funchal flights

Top 8 airlines flying from George Bush Intcntl to Lisbon

Discover the top 8 airlines that operate flights from George Bush Intcntl to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$549Average$867FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$563Average$965FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$578Average$936FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$585Average$863FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$589Average$974FlexibilityNo cancel feeOn-time69%
DeltaCheapest$643Average$857FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$655Average$702FlexibilityNo cancel feeOn-time77%
KLMCheapest$713Average$924FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.