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George Bush Intcntl

$80+ Cheap flights from Louisville (SDF) to George Bush Intcntl (IAH)

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IAH
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Houston George Bush Intcntl are usually found in August or October, booked 66 days in advance, depart on a Friday or Wednesday and return on a Saturday

Cheap flight deals from Louisville to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to George Bush Intcntl (IAH). 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 September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$181
(Kiwi.com)

One-way from

$80
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$375

Good round-trip deal

$331 or less

Good one-way deal

$182 or less
Provider with most accurate pricing for Louisville Intl-Houston George Bush Intcntl flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Houston George Bush Intcntl flights.
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From Louisville Intl to Houston George Bush Intcntl
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One-way flight from Louisville Intl to Houston George Bush Intcntl
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Highest demand for flights based on searches. 10% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Louisville Intl to Houston George Bush Intcntl.
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Price to beat on a one-way flight from Louisville Intl to Houston George Bush Intcntl.
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Find flight deals from Louisville to George Bush Intcntl

Cheapest flights from Louisville to George Bush Intcntl
Explore the most affordable flight options available from Louisville to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:31 pmSDF - IAH
1 stop7h 57mSpirit Airlines
Sun 10/196:44 amIAH - SDF
1 stop11h 31mSpirit Airlines
Deal found 9/24$181
This Cheapflightsfares deal was found by Cheapflights users on 9/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:15 amSDF - IAH
1 stop5h 36mSpirit Airlines
Sun 10/196:44 amIAH - SDF
1 stop11h 31mSpirit Airlines
Deal found 9/23$183
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:15 amSDF - IAH
1 stop5h 36mSpirit Airlines
Tue 10/141:09 pmIAH - SDF
1 stop26h 27mSpirit Airlines
Deal found 9/23$185
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:34 pmSDF - IAH
1 stop10h 56mSpirit Airlines
Wed 10/86:00 amIAH - SDF
1 stop9h 36mSpirit Airlines
Deal found 9/23$196
This Priceline deal was found by Cheapflights users on 9/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:15 amSDF - IAH
1 stop5h 36mSpirit Airlines
Sat 10/1811:55 amIAH - SDF
1 stop9h 52mSpirit Airlines
Deal found 9/23$201
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:58 pmSDF - IAH
1 stop6h 30mSpirit Airlines
Mon 10/276:44 amIAH - SDF
1 stop11h 31mSpirit Airlines
Deal found 9/25$202
This Cheapflightsfares deal was found by Cheapflights users on 9/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:47 amSDF - IAH
1 stop11h 48mSpirit Airlines
Mon 11/36:44 amIAH - SDF
1 stop11h 31mSpirit Airlines
Deal found 9/23$205
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:55 amSDF - IAH
1 stop10h 38mMultiple Airlines
Wed 11/128:31 pmIAH - SDF
2 stops16h 44mMultiple Airlines
Deal found 9/24$215
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:34 pmSDF - IAH
1 stop10h 56mSpirit Airlines
Mon 10/66:44 amIAH - SDF
1 stop11h 31mSpirit Airlines
Deal found 9/23$216
This Kiwi.com deal was found by Cheapflights users on 9/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:47 amSDF - IAH
1 stop8h 16mSpirit Airlines
Fri 10/318:10 pmIAH - SDF
1 stop20h 53mSpirit Airlines
Deal found 9/24$217
This Cheapflightsfares deal was found by Cheapflights users on 9/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:58 pmSDF - IAH
1 stop6h 30mSpirit Airlines
Sun 10/126:44 amIAH - SDF
1 stop11h 31mSpirit Airlines
Deal found 9/22$218

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to George Bush Intcntl 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 September 25, 2025.
Use the filters below to find and compare flights from Louisville to Houston George Bush Intcntl Airport that are best for you.

Fly from

Louisville

Fly to

George Bush Intcntl

Route

Depart

Return

Price

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Wed 10/15

5:31 pm-12:28 am

1 stop7h 57m

Houston George Bush Intcntl

Sun 10/19

6:44 am-7:15 pm

1 stop11h 31m

$181

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 11/13

6:00 am-12:32 pm

1 stop7h 32m

Houston George Bush Intcntl

Mon 11/17

12:17 pm-11:45 pm

1 stop10h 28m

$205

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 11/6

10:55 am-8:33 pm

1 stop10h 38m

Houston George Bush Intcntl

Wed 11/12

8:31 pm-2:15 pm

2 stops16h 44m

$215

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 10/31

11:47 am-7:03 pm

1 stop8h 16m

Houston George Bush Intcntl

Sun 11/2

5:25 am-6:03 pm

2 stops11h 38m

$255

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 10/16

7:15 am-8:43 am

Nonstop2h 28m

Houston George Bush Intcntl

Thu 10/23

6:25 pm-9:54 pm

Nonstop2h 29m

$273

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 11/13

7:10 am-8:50 am

Nonstop2h 40m

Houston George Bush Intcntl

Sat 11/15

10:06 am-1:25 pm

Nonstop2h 19m

$283

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Tue 12/16

10:39 am-3:00 pm

1 stop5h 21m

Houston George Bush Intcntl

Wed 12/31

5:20 am-1:12 pm

1 stop6h 52m

$293

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 12/12

7:10 am-8:50 am

Nonstop2h 40m

Houston George Bush Intcntl

Mon 12/15

6:38 pm-9:57 pm

Nonstop2h 19m

$295

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 10/31

7:10 am-8:50 am

Nonstop2h 40m

Houston George Bush Intcntl

Sat 11/1

6:40 pm-9:57 pm

Nonstop2h 17m

$305

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sat 10/25

6:58 pm-12:28 am

1 stop6h 30m

$91

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/25

Showing 1-10 of 21 results
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Compare providers for flights from Louisville to George Bush Intcntl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to George Bush Intcntl in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Houston George Bush Intcntl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Houston George Bush Intcntl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Houston George Bush Intcntl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Louisville 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 Louisville to Houston George Bush Intcntl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to George Bush Intcntl. Price data was last updated on September 19, 2025.

The best time to book flights from Louisville to Houston George Bush Intcntl Airport is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Louisville to Houston George Bush Intcntl Airport (average of $241). Flying from Louisville to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 SDF to IAH?

Find hourly flight availability from Louisville to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 25, 2025.

A simple way to save on the total cost of your ticket is to fly from Louisville to Houston George Bush Intcntl Airport at noon. If you’re flexible enough to do this you can expect to save up to 62% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated September 25, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Louisville to Houston George Bush Intcntl Airport have to say. 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
7,973 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

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
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

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
8,926 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

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
7,973 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

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!
Spirit Airlines
6.3
Okay
8,045 reviews
Delta
8.0
Very good
7,973 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Crew

8.5

Food

7.3

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 Louisville to George Bush Intcntl. 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 from for flights from Louisville to Houston George Bush Intcntl?

    Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Houston George Bush Intcntl. On average, Louisville Intl has 9 outbound flights to Houston George Bush Intcntl per day from 4 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

  • How long is the flight from Louisville to Houston George Bush Intcntl Airport?

    For as low as $273, Spirit Airlines can have you in Houston George Bush Intcntl Airport from Louisville in 2h 28m. The distance between Louisville and Houston George Bush Intcntl Airport is about 787 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Spirit Airlines ($153), Delta ($216), and American Airlines ($251) offers the cheapest pricing from Louisville to Houston George Bush Intcntl Airport. Users have found that Spirit Airlines is 60% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Louisville to Houston George Bush Intcntl Airport?

    The top 3 most reliable airlines when flying from Louisville to Houston George Bush Intcntl Airport are ANA (89%), Copa Airlines (87%) and United Airlines (84%).

  • What are the cheapest flights from Louisville to Houston George Bush Intcntl Airport?

    Looking at all options, your cheapest flight can be booked for $101. While the most popular route (Louisville Intl - Houston George Bush Intcntl) can be booked for $181 on average, our data indicates $364 when flying from Louisville to Houston George Bush Intcntl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to George Bush Intcntl 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 Louisville to Houston George Bush Intcntl Airport?

    Currently, August is the cheapest month in which you can book a flight from Louisville to Houston George Bush Intcntl Airport (average of $241). Flying from Louisville to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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
Montgomery
Spring
Jersey Village
Humble
The Woodlands
Conroe
Tomball
Katy
Cypress

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Top 4 airlines flying from Louisville to George Bush Intcntl

Discover the top 4 airlines that operate flights from Louisville to George Bush Intcntl. 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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$153Average$292FlexibilityNo cancel feeOn-time65%
DeltaCheapest$216Average$338FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$251Average$404FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$276Average$389FlexibilityNo cancel feeOn-time69%

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