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$262+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — LIS
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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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 July 3, 2025.

Round-trip from

$779
(American Airlines)

One-way from

$262
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$981
From Houston George Bush Intcntl to Lisbon Humberto Delgado
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One-way flight from Houston George Bush Intcntl to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 15% potential increase in price ($165 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/3. 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.
Wed 8/136:50 pmIAH - LIS
2 stops15h 15mAmerican Airlines
Wed 8/2011:05 amLIS - IAH
1 stop16h 35mAmerican Airlines
Deal found 7/3$779
This Travelocity deal was found by Cheapflights users on 7/1. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/254:30 pmIAH - LIS
1 stop16h 00mLufthansa
Sun 11/303:55 pmLIS - IAH
2 stops31h 07mLufthansa
Deal found 7/1$780
This Air France deal was found by Cheapflights users on 7/2. 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.
Tue 8/123:50 pmIAH - LIS
1 stop17h 00mAir France
Mon 8/186:50 pmLIS - IAH
1 stop24h 45mAir France
Deal found 7/2$781
This Delta deal was found by Cheapflights users on 7/3. 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.
Sun 8/103:50 pmIAH - LIS
1 stop13h 25mDelta
Wed 8/205:40 amLIS - IAH
1 stop13h 55mDelta
Deal found 7/3$782
This CheapOair deal was found by Cheapflights users on 7/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2011:50 amIAH - LIS
1 stop15h 30mAir Canada
Sat 11/2911:20 amLIS - IAH
2 stops29h 39mAir Canada
Deal found 7/3$787
This Iberia deal was found by Cheapflights users on 7/3. 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.
Sun 8/102:32 pmIAH - LIS
2 stops15h 18mIberia
Wed 8/207:05 pmLIS - IAH
2 stops31h 05mIberia
Deal found 7/3$788
This oojo deal was found by Cheapflights users on 7/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/259:00 pmIAH - LIS
1 stop20h 35mTurkish Airlines
Sat 10/45:55 amLIS - IAH
1 stop19h 10mTurkish Airlines
Deal found 7/2$789
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Sun 8/2412:57 pmIAH - LIS
1 stop15h 53mMultiple Airlines
Thu 8/289:30 pmLIS - IAH
3 stops38h 35mMultiple Airlines
Deal found 7/2$790
This Ovago deal was found by Cheapflights users on 7/2. 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.
Sun 9/284:00 pmIAH - LIS
1 stop11h 05mBritish Airways
Mon 10/136:45 pmLIS - IAH
2 stops29h 50mBritish Airways
Deal found 7/2$811
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sun 10/57:20 amIAH - LIS
1 stop21h 10mUnited Airlines
Sun 10/126:40 amLIS - IAH
2 stops23h 50mUnited Airlines
Deal found 7/2$819

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 July 3, 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

Wed 8/13

6:50 pm-4:05 pm

2 stops15h 15m

Lisbon Humberto Delgado

Wed 8/20

11:05 am-9:40 pm

1 stop16h 35m

$779

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 11/25

4:30 pm-2:30 pm

1 stop16h 00m

Lisbon Humberto Delgado

Sun 11/30

3:55 pm-5:02 pm

2 stops31h 07m

$780

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Tue 8/12

3:50 pm-2:50 pm

1 stop17h 00m

Lisbon Humberto Delgado

Mon 8/18

6:50 pm-1:35 pm

1 stop24h 45m

$781

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 8/14

10:05 am-10:50 am

1 stop18h 45m

Lisbon Humberto Delgado

Thu 8/28

9:30 pm-5:00 am

2 stops37h 30m

$788

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Thu 9/25

9:00 pm-11:35 pm

1 stop20h 35m

Lisbon Humberto Delgado

Sat 10/4

5:55 am-7:05 pm

1 stop19h 10m

$789

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Fri 10/24

6:30 am-8:20 am

2 stops19h 50m

Lisbon Humberto Delgado

Sat 11/1

11:20 am-9:39 pm

1 stop15h 19m

$795

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 10/5

12:39 pm-2:50 pm

2 stops20h 11m

Lisbon Humberto Delgado

Wed 10/15

5:40 am-7:46 pm

2 stops20h 06m

$796

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sat 10/25

10:00 am-10:20 am

2 stops42h 20m

Lisbon Humberto Delgado

Sun 11/2

10:50 am-9:44 pm

1 stop16h 54m

$809

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Sun 9/28

4:00 pm-9:05 am

1 stop11h 05m

Lisbon Humberto Delgado

Mon 10/13

6:45 pm-6:35 pm

2 stops29h 50m

$811

HoustonLisbon

IAH - LIS

IAHLIS

Houston George Bush Intcntl

Fri 10/24

6:03 pm-4:05 pm

2 stops16h 02m

Lisbon Humberto Delgado

Sat 11/1

4:45 pm-9:26 am

2 stops21h 41m

$842

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 18 results
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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 27, 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 70 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 $1,130). 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 July 3, 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.

How much does it cost to fly round-trip from Houston George Bush Intcntl Airport to Lisbon?

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 July 3, 2025.
Read through reviews of airlines operating flights from Houston George Bush Intcntl Airport to Lisbon, such as Delta, Air France, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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
1,465 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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!
Turkish Airlines
7.3
Good
3,895 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

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 American Airlines is currently your cheapest option to Lisbon, with prices starting at $779. Additional round-trip tickets that might be worth considering are offered by Lufthansa and Air France, with the lowest prices starting at $780 and $781, respectively. These flights start at 11% lower than the current average price 3 months from now.

  • 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 TAP AIR PORTUGAL ($476).

  • 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 $1,130). 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
Oeiras
Beja
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Sesimbra
Colares

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$549Average$849FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$563Average$962FlexibilityNo cancel feeOn-time67%
American AirlinesCheapest$578Average$936FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$585Average$861FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$588Average$959FlexibilityNo cancel feeOn-time69%
DeltaCheapest$643Average$852FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$655Average$743FlexibilityNo cancel feeOn-time77%
KLMCheapest$713Average$924FlexibilityNo cancel feeOn-time75%

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