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$92+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SDF
Aug 24 — Aug 311
Mon 8/24
Mon 8/31
1 adult, Economy
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Cheap 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 July 25, 2026.

This United Airlines deal was found by Cheapflights users on 7/20. 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.
Mon 8/176:50 pm
IAH
-
SDF
Nonstop2h 25m
United Airlines
Mon 8/317:25 am
SDF
-
IAH
Nonstop2h 25m
United Airlines
Deal found 7/20$223
This United Airlines deal was found by Cheapflights users on 7/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:50 pm
IAH
-
SDF
Nonstop2h 25m
United Airlines
Wed 9/27:25 am
SDF
-
IAH
Nonstop2h 25m
United Airlines
Deal found 7/22$233
This Delta deal was found by Cheapflights users on 7/21. 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.
Sat 9/197:00 am
IAH
-
SDF
1 stop4h 25m
Delta
Mon 10/125:45 pm
SDF
-
IAH
1 stop5h 20m
Delta
Deal found 7/21$253
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/178:36 am
IAH
-
SDF
1 stop24h 59m
Multiple Airlines
Fri 10/99:14 pm
SDF
-
IAH
2 stops18h 51m
Multiple Airlines
Deal found 7/21$254
This Delta deal was found by Cheapflights users on 7/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:05 am
IAH
-
SDF
1 stop5h 13m
Delta
Sat 8/291:21 pm
SDF
-
IAH
1 stop6h 20m
Delta
Deal found 7/25$263
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:26 am
IAH
-
SDF
1 stop7h 07m
American Airlines
Mon 9/77:03 am
SDF
-
IAH
1 stop4h 37m
American Airlines
Deal found 7/22$267
This United Airlines deal was found by Cheapflights users on 7/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:45 pm
IAH
-
SDF
Nonstop2h 25m
United Airlines
Thu 10/85:15 am
SDF
-
IAH
1 stop6h 11m
United Airlines
Deal found 7/22$271
This United Airlines deal was found by Cheapflights users on 7/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:45 am
IAH
-
SDF
Nonstop2h 22m
United Airlines
Sun 9/137:25 am
SDF
-
IAH
Nonstop2h 25m
United Airlines
Deal found 7/22$276
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/178:36 am
IAH
-
SDF
1 stop24h 59m
Multiple Airlines
Sat 10/109:11 pm
SDF
-
IAH
2 stops25h 55m
Multiple Airlines
Deal found 7/21$278
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:20 am
IAH
-
SDF
1 stop5h 15m
United Airlines
Tue 11/179:10 am
SDF
-
IAH
Nonstop2h 45m
United Airlines
Deal found 7/25$281
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/178:36 am
IAH
-
SDF
1 stop24h 59m
Multiple Airlines
Wed 10/79:11 pm
SDF
-
IAH
2 stops16h 29m
Multiple Airlines
Deal found 7/21$284

Find 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 July 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$223
(United Airlines)

One-way from

$92
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$519

Good round-trip deal

$434 or less

Good one-way deal

$558 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.
Search Deals
From Houston George Bush Intcntl to Louisville Intl
Search Deals
One-way flight from Houston George Bush Intcntl to Louisville Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Houston George Bush Intcntl to Louisville Intl.
Search Deals
Price to beat on a one-way flight from Houston George Bush Intcntl to Louisville Intl.
Search Deals

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 July 25, 2026.
Use the filters below to find and compare flights from Houston George Bush Intcntl Airport to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Sat 9/19

2:08 pm-10:33 pm

1 stop7h 25m

Louisville Intl

Tue 9/22

2:53 pm-9:36 pm

1 stop7h 43m

$243

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Sat 9/19

9:45 am-1:07 pm

Nonstop2h 22m

Louisville Intl

Tue 9/22

9:00 am-3:40 pm

1 stop7h 40m

$313

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 8/13

6:50 pm-10:15 pm

Nonstop2h 25m

Louisville Intl

Tue 8/18

9:45 am-11:10 am

Nonstop2h 25m

$313

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Tue 9/8

6:50 pm-10:15 pm

Nonstop2h 25m

Louisville Intl

Tue 9/15

7:25 am-8:50 am

Nonstop2h 25m

$313
Quickest round-trip

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 8/21

9:45 am-1:07 pm

Nonstop2h 22m

Louisville Intl

Fri 8/28

7:25 am-8:50 am

Nonstop2h 25m

$319

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 10/23

4:59 pm-10:35 pm

1 stop4h 36m

Louisville Intl

Sun 10/25

7:30 pm-11:57 pm

1 stop5h 27m

$339

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Sun 8/23

4:37 pm-7:59 pm

Nonstop2h 22m

Louisville Intl

Sat 8/29

5:45 pm-12:27 am

1 stop7h 42m

$366

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 9/17

7:00 am-2:58 pm

1 stop6h 58m

Louisville Intl

Sun 9/20

7:05 am-11:05 am

1 stop5h 00m

$389

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Mon 12/28

4:35 pm-7:50 pm

Nonstop2h 15m

Louisville Intl

Sat 1/2

5:57 pm-12:20 am

1 stop7h 23m

$397

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Sun 8/23

4:37 pm-7:59 pm

Nonstop2h 22m

Louisville Intl

Fri 8/28

7:10 am-11:46 am

1 stop5h 36m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 Houston George Bush Intcntl Airport-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Houston George Bush Intcntl Airport-Louisville flight deals on Cheapflights vs. FlightHub >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 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 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

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

Currently, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Louisville (average of $396). Flying from Houston George Bush Intcntl Airport to Louisville in June is currently the most expensive (average of $855). 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 July 25, 2026.

When flying from Houston George Bush Intcntl Airport to Louisville, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Airfare is below average for this route at the moment.

Houston George Bush Intcntl Airport to Louisville flights typically cost between $549 and $714 in August.
The cheapest round-trip price found within the last 5 days was $223 on United Airlines (Aug 17-Aug 31).

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 July 25, 2026.
Peruse reviews from past customers who have flown with 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.
United Airlines
7.4
Good
10,034 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
10,034 reviews
United Airlines
7.4
Good
10,034 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.1
Good
11,847 reviews
United Airlines
7.4
Good
10,034 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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. 2 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 9 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 $313, American Airlines can have you in Louisville from Houston George Bush Intcntl Airport in 2h 22m. 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 $200. Another airline that can offer you cheap pricing is United Airlines. American Airlines is 67% 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: United Airlines (84%), Mesa Airlines (84%), Air New Zealand (79%).

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

    Looking at all options, your cheapest flight can be booked for $187. While the most popular route (Houston George Bush Intcntl - Louisville Intl) can be booked for $233 on average, our data indicates $541 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Louisville (average of $396). Flying from Houston George Bush Intcntl Airport to Louisville in June is currently the most expensive (average of $855). 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
Corydon
Shepherdsville
Elizabethtown
Jeffersonville
Bardstown

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Top 2 airlines flying from George Bush Intcntl to Louisville

Discover the top 2 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 July 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$200Average$434FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$634FlexibilityNo cancel feeOn-time69%

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