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$84+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
IAH — SDF
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 August, booked 61 days in advance, depart on a Friday or Sunday and return on a Friday

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 July 2, 2025.

Round-trip from

$199
(Kiwi.com)

One-way from

$84
(Mytrip)

Popular in

March

Cheapest in

July

Average price

$303

Good round-trip deal

$337 or less

Good one-way deal

$249 or less
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. 11% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 2, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/69:26 pmIAH - SDF
1 stop17h 10mSpirit Airlines
Sun 8/106:53 pmSDF - IAH
1 stop5h 32mSpirit Airlines
Deal found 7/1$199
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/286:05 amIAH - SDF
1 stop4h 40mAmerican Airlines
Wed 9/310:00 amSDF - IAH
1 stop4h 40mAmerican Airlines
Deal found 6/30$217
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/185:30 amIAH - SDF
1 stop7h 25mMultiple Airlines
Wed 7/239:46 amSDF - IAH
1 stop12h 53mMultiple Airlines
Deal found 7/1$222
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/34:20 pmIAH - SDF
Nonstop2h 15mUnited Airlines
Fri 11/77:05 amSDF - IAH
Nonstop2h 33mUnited Airlines
Deal found 7/1$253

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 2, 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

Wed 8/6

9:26 pm-3:36 pm

1 stop17h 10m

Louisville Intl

Sun 8/10

6:53 pm-11:25 pm

1 stop5h 32m

$199

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 8/28

6:05 am-11:45 am

1 stop4h 40m

Louisville Intl

Wed 9/3

10:00 am-1:40 pm

1 stop4h 40m

$217

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 7/18

5:30 am-1:55 pm

1 stop7h 25m

Louisville Intl

Wed 7/23

9:46 am-9:39 pm

1 stop12h 53m

$222

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 8/28

6:29 pm-10:00 pm

Nonstop2h 31m

Louisville Intl

Wed 9/3

9:40 am-11:10 am

Nonstop2h 30m

$267

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 8/14

7:21 pm-10:08 am

1 stop13h 47m

$84

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Tue 8/5

9:26 pm-3:36 pm

1 stop17h 10m

$94

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Mon 9/15

6:29 pm-10:00 pm

Nonstop2h 31m

$99

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Tue 9/9

4:04 pm-9:14 pm

1 stop4h 10m

$109

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 8/29

1:51 pm-10:47 pm

1 stop7h 56m

$148

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 June 27, 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, January is the cheapest month in which you can book a flight from Houston George Bush Intcntl Airport to Louisville (average of $299). Flying from Houston George Bush Intcntl Airport to Louisville in April is currently the most expensive (average of $369). 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 2, 2025.

It’s typically best to fly out from Houston George Bush Intcntl Airport to Louisville at noon. Doing so could potentially save you 12% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Houston George Bush Intcntl Airport to Louisville

Explore weekly flight availability from George Bush Intcntl to Louisville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 2, 2025.

The most flights from IAH to SDF are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

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 2, 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
8.0
Very good
7,983 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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
8,861 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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
7,983 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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
8,103 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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 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.

  • 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 $199. Other airlines that can offer you cheap pricing are United Airlines, from $213, and American Airlines, from $217. Spirit Airlines is 50% cheaper than the average price of flights available within the next 90 days to this destination.

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

    $94 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $99 and $109, respectively.

  • 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: American Airlines (100%), Envoy Air (100%), ANA (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 $127. While the most popular route (Houston George Bush Intcntl - Louisville Intl) can be booked for $193 on average our data indicates $439 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 $299). Flying from Houston George Bush Intcntl Airport to Louisville in April is currently the most expensive (average of $369). 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
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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$333FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$190Average$234FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$253Average$423FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$318Average$390FlexibilityNo cancel feeOn-time71%

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