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$75+ Cheap flights from George Bush Intcntl (IAH) to Louisville (SDF)

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SDF
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheapflights Tip: The best prices from Houston George Bush Intcntl to Louisville Intl are usually found in July or January, booked 18 days in advance, depart on a Saturday or Friday and return on a Wednesday

Cheap flight deals from George Bush Intcntl to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from George Bush Intcntl (IAH) to Louisville (SDF). 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 November 26, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$183
(Spirit Airlines)

One-way from

$75
(Mytrip)

Popular in

August

Cheapest in

July

Average price

$477

Good round-trip deal

$402 or less

Good one-way deal

$170 or less
Provider with most accurate pricing for Houston George Bush Intcntl-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Houston George Bush Intcntl-Louisville Intl flights.
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From Houston George Bush Intcntl to Louisville Intl
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One-way flight from Houston George Bush Intcntl to Louisville Intl
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Highest demand for flights based on searches. 7% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Houston George Bush Intcntl to Louisville Intl.
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Price to beat on a one-way flight from Houston George Bush Intcntl to Louisville Intl.
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Find flight deals from George Bush Intcntl to Louisville

Cheapest flights from George Bush Intcntl to Louisville
Explore the most affordable flight options available from George Bush Intcntl to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Sun 12/147:25 pmIAH - SDF
1 stop14h 35mSpirit Airlines
Fri 1/301:55 pmSDF - IAH
1 stop6h 29mSpirit Airlines
Deal found 11/26$199
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Sun 12/147:25 pmIAH - SDF
1 stop14h 35mSpirit Airlines
Mon 1/261:55 pmSDF - IAH
1 stop22h 16mSpirit Airlines
Deal found 11/26$206
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Sun 12/1410:41 amIAH - SDF
2 stops21h 17mMultiple Airlines
Fri 1/301:55 pmSDF - IAH
1 stop6h 29mMultiple Airlines
Deal found 11/26$215
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Sun 12/147:25 pmIAH - SDF
1 stop14h 35mSpirit Airlines
Tue 1/273:28 pmSDF - IAH
1 stop9h 30mSpirit Airlines
Deal found 11/26$218
This Kiwi.com deal was found by Cheapflights users on 11/26. 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 12/137:25 pmIAH - SDF
1 stop14h 35mSpirit Airlines
Wed 1/75:05 amSDF - IAH
1 stop28h 35mSpirit Airlines
Deal found 11/26$219
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 12/114:06 pmIAH - SDF
2 stops17h 25mMultiple Airlines
Sun 12/142:55 pmSDF - IAH
1 stop7h 53mMultiple Airlines
Deal found 11/24$220
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Sun 12/1410:41 amIAH - SDF
2 stops21h 17mMultiple Airlines
Mon 1/261:55 pmSDF - IAH
1 stop22h 16mMultiple Airlines
Deal found 11/26$221
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Wed 12/3110:08 amIAH - SDF
1 stop12h 51mMultiple Airlines
Thu 1/15:05 amSDF - IAH
2 stops18h 50mMultiple Airlines
Deal found 11/25$223
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Sun 12/1410:41 amIAH - SDF
2 stops21h 17mMultiple Airlines
Tue 1/273:28 pmSDF - IAH
1 stop9h 30mMultiple Airlines
Deal found 11/26$234
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Wed 12/104:06 pmIAH - SDF
2 stops17h 54mMultiple Airlines
Fri 12/1211:21 amSDF - IAH
1 stop22h 57mMultiple Airlines
Deal found 11/25$236

Cheapflights Fare Finder

 
Customize your flight search to find flights from George Bush Intcntl to Louisville 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 November 26, 2025.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Louisville that are best for you.

Fly from

George Bush Intcntl

Fly to

Louisville

Route

Depart

Return

Price

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 1/22

8:19 pm-1:00 pm

1 stop15h 41m

Louisville Intl

Mon 1/26

1:55 pm-7:24 pm

1 stop6h 29m

$183

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Tue 12/30

5:54 am-10:49 pm

1 stop15h 55m

Louisville Intl

Thu 1/1

5:05 am-5:50 pm

1 stop13h 45m

$294

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Tue 12/16

10:02 am-1:21 pm

Nonstop2h 19m

Louisville Intl

Thu 12/18

3:25 pm-5:13 pm

Nonstop2h 48m

$319

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Sat 12/20

8:48 am-12:06 pm

Nonstop2h 18m

Louisville Intl

Wed 12/24

6:00 am-7:48 am

Nonstop2h 48m

$334

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Mon 2/23

6:32 pm-11:58 pm

1 stop4h 26m

Louisville Intl

Wed 2/25

10:46 am-6:26 pm

1 stop8h 40m

$339

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 12/25

6:35 pm-9:54 pm

Nonstop2h 19m

Louisville Intl

Tue 12/30

6:00 am-7:48 am

Nonstop2h 48m

$345

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 12/19

4:40 pm-7:59 pm

Nonstop2h 19m

Louisville Intl

Sat 1/3

6:00 am-7:48 am

Nonstop2h 48m

$349

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 12/31

5:00 am-10:30 pm

1 stop16h 30m

Louisville Intl

Thu 1/1

5:40 am-12:30 am

1 stop19h 50m

$363

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 1/7

10:00 am-1:14 pm

Nonstop2h 14m

$155

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 2/18

10:10 am-1:31 pm

Nonstop2h 21m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 19 results
1
2

Compare providers for flights from George Bush Intcntl to Louisville

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 George Bush Intcntl to Louisville in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*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 Houston George Bush Intcntl Airport-Louisville flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Houston George Bush Intcntl Airport-Louisville flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Houston George Bush Intcntl Airport-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Houston George Bush Intcntl Airport-Louisville flights, Cheapflights users trust Mytrip the most. Mytrip 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 Houston George Bush Intcntl Airport-Louisville 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 George Bush Intcntl to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville 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 Louisville

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

Use this chart to determine the optimal time to book a round-trip flight from George Bush Intcntl to Louisville. Price data was last updated on November 21, 2025.

The best time to book flights from Houston George Bush Intcntl Airport to Louisville is 18 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 Houston George Bush Intcntl Airport to Louisville?

Currently, September is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Louisville (average of $96). Flying from Houston George Bush Intcntl Airport to Louisville in March is currently the most expensive (average of $241). 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 SDF?

Find hourly flight availability from George Bush Intcntl to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Louisville at noon. Doing so could potentially save you 64% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated November 26, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Houston George Bush Intcntl Airport to Louisville to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

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
7,998 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

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
9,046 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

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
11,038 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

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
8,158 reviews
Delta
7.9
Good
7,998 reviews

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

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

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly into when you book flights from Houston George Bush Intcntl to Louisville. 4 airlines have flights to Louisville Intl from Houston George Bush Intcntl on a regular basis. Booking flights from Houston George Bush Intcntl to Louisville Intl should not be difficult; the airport handles an average of 8 inbound flights from Houston George Bush Intcntl per day.

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

    For as low as $319, Spirit Airlines can have you in Louisville from Houston George Bush Intcntl Airport in 2h 19m. Airlines will cover a distance of 787 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Houston George Bush Intcntl Airport to Louisville round-trip from $169. Other airlines that can offer you cheap pricing are American Airlines, from $200, and Spirit Airlines, from $206. Delta is 61% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Houston George Bush Intcntl Airport to Louisville on time: ANA (93%), Copa Airlines (88%), United Airlines (86%).

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

    Looking at all options, your cheapest flight can be booked for $135. While the most popular route (Houston George Bush Intcntl - Louisville Intl) can be booked for $179 on average, our data indicates $317 when flying from Houston George Bush Intcntl Airport to Louisville.

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

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

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

    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 Louisville.

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

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

    Currently, September is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Louisville (average of $96). Flying from Houston George Bush Intcntl Airport to Louisville in March is currently the most expensive (average of $241). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

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Top 4 airlines flying from George Bush Intcntl to Louisville

Discover the top 4 airlines that operate flights from George Bush Intcntl to Louisville. 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$333FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$200Average$413FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$206Average$239FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$267Average$437FlexibilityNo cancel feeOn-time69%

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