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George Bush Intcntl

$57+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IAH
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Find cheap flights from Louisville to George Bush Intcntl with Cheapflights

1. Tell us where you want to go

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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 Wednesday or Friday and return on a Saturday

Cheap 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 December 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
Tue 12/302:55 pmSDF - IAH
2 stops28h 34mMultiple Airlines
Tue 1/610:08 amIAH - SDF
1 stop11h 41mMultiple Airlines
Deal found 12/24$390
This Kiwi.com deal was found by Cheapflights users on 12/24. 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 12/296:41 pmSDF - IAH
2 stops47h 42mMultiple Airlines
Wed 1/283:18 pmIAH - SDF
1 stop23h 31mMultiple Airlines
Deal found 12/24$495
This United Airlines deal was found by Cheapflights users on 12/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:11 pmSDF - IAH
2 stops16h 05mUnited Airlines
Sat 12/2711:55 amIAH - SDF
1 stop7h 37mUnited Airlines
Deal found 12/24$564
This Kiwi.com deal was found by Cheapflights users on 12/25. 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.
Mon 12/295:05 amSDF - IAH
2 stops30h 05mSpirit Airlines
Tue 1/610:08 amIAH - SDF
1 stop11h 41mSpirit Airlines
Deal found 12/25$565
This Kiwi.com deal was found by Cheapflights users on 12/25. 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.
Mon 12/295:05 amSDF - IAH
2 stops30h 05mSpirit Airlines
Mon 1/510:08 amIAH - SDF
1 stop12h 51mSpirit Airlines
Deal found 12/25$600

Find 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 December 26, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$177
(Kiwi.com)

One-way from

$57
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$525

Good round-trip deal

$416 or less

Good one-way deal

$270 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. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in December 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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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 December 26, 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 1/21

1:55 pm-9:57 pm

1 stop9h 02m

Houston George Bush Intcntl

Wed 1/28

12:16 pm-3:49 pm

1 stop26h 33m

$177

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Wed 1/7

5:05 am-5:50 pm

1 stop13h 45m

Houston George Bush Intcntl

Fri 1/23

7:45 am-6:04 pm

1 stop9h 19m

$212

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 1/8

3:36 pm-8:40 am

1 stop18h 04m

Houston George Bush Intcntl

Mon 1/12

4:35 pm-2:41 pm

1 stop21h 06m

$255

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Tue 1/13

3:36 pm-5:55 am

2 stops15h 19m

Houston George Bush Intcntl

Fri 1/23

7:45 am-6:04 pm

1 stop9h 19m

$266

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 3/5

2:26 pm-7:29 am

2 stops18h 03m

Houston George Bush Intcntl

Tue 3/10

7:30 am-2:38 pm

1 stop6h 08m

$287

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sat 2/14

6:00 am-7:48 am

Nonstop2h 48m

Houston George Bush Intcntl

Wed 2/18

10:10 am-1:31 pm

Nonstop2h 21m

$319

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Wed 1/14

7:50 am-3:07 pm

1 stop8h 17m

Houston George Bush Intcntl

Wed 1/21

7:05 am-2:36 pm

1 stop6h 31m

$329

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 3/5

6:00 am-7:48 am

Nonstop2h 48m

Houston George Bush Intcntl

Tue 3/10

6:20 am-1:17 pm

1 stop5h 57m

$334

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sun 1/11

3:36 pm-8:40 am

1 stop18h 04m

Houston George Bush Intcntl

Fri 1/16

5:46 am-6:04 pm

1 stop11h 18m

$338

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sun 3/8

6:00 am-7:48 am

Nonstop2h 48m

Houston George Bush Intcntl

Sat 3/14

6:37 pm-9:59 pm

Nonstop2h 22m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 Accuracy3 starsTrust Score*2 stars
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 Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Louisville-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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 December 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, September is the cheapest month in which you can book a flight from Louisville to Houston George Bush Intcntl Airport (average of $98). Flying from Louisville to Houston George Bush Intcntl Airport in January is currently the most expensive (average of $209). 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 December 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Louisville to Houston George Bush Intcntl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 84% 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 December 26, 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
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,013 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,115 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,064 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,206 reviews
Delta
7.9
Good
8,013 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 8 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 $255, Spirit Airlines can have you in Houston George Bush Intcntl Airport from Louisville in 18h 04m. The distance between Louisville and Houston George Bush Intcntl Airport is about 787 mi.

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

    According to our current data, Delta ($108), Spirit Airlines ($153), and American Airlines ($251) offers the cheapest pricing from Louisville to Houston George Bush Intcntl Airport. Users have found that Delta is 71% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $81. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Louisville to Houston George Bush Intcntl Airport for a low price.

  • 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 United Airlines (78%), Mesa Airlines (78%) and Air New Zealand (78%).

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

    Looking at all options, your cheapest flight can be booked for $153. While the most popular route (Louisville Intl - Houston George Bush Intcntl) can be booked for $213 on average, our data indicates $430 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, September is the cheapest month in which you can book a flight from Louisville to Houston George Bush Intcntl Airport (average of $98). Flying from Louisville to Houston George Bush Intcntl Airport in January is currently the most expensive (average of $209). 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
Spring
Montgomery
Katy
The Woodlands
Tomball
Jersey Village
Humble
Conroe
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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$153Average$267FlexibilityNo cancel feeOn-time65%
DeltaCheapest$216Average$338FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$251Average$379FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$267Average$390FlexibilityNo cancel feeOn-time69%

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