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$83+ Cheap flights from Houston 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SDF
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to Louisville Intl are usually found in August or January, booked 25 days in advance, depart on a Sunday or Thursday and return on a Tuesday

Cheap flight deals from Houston to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) 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 30, 2025.

Round-trip from

$174
(Booking.com)

One-way from

$83
(Mytrip)

Popular in

May

Cheapest in

August

Average price

$351
From Houston to Louisville Intl
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One-way flight from Houston to Louisville Intl
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Highest demand for flights based on searches. 7% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Houston to Louisville

Cheapest flights from Houston to Louisville
Explore the most affordable flight options available from Houston to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:25 amIAH - SDF
1 stop12h 53mSpirit Airlines
Thu 8/219:13 pmSDF - IAH
1 stop8h 47mSpirit Airlines
Deal found 7/29$174
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Thu 8/146:25 amIAH - SDF
1 stop12h 53mMultiple Airlines
Fri 8/1512:24 pmSDF - IAH
1 stop11h 44mMultiple Airlines
Deal found 7/29$214
This United Airlines deal was found by Cheapflights users on 7/29. 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 11/810:06 amIAH - SDF
Nonstop2h 19mUnited Airlines
Mon 11/103:35 pmSDF - IAH
Nonstop2h 38mUnited Airlines
Deal found 7/29$223
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:05 pmHOU - SDF
Nonstop2h 05mSouthwest
Mon 11/107:55 pmSDF - HOU
Nonstop2h 35mSouthwest
Deal found 7/29$223
This Delta deal was found by Cheapflights users on 7/29. 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.
Wed 10/155:30 amIAH - SDF
1 stop5h 19mDelta
Sat 10/187:05 amSDF - IAH
1 stop6h 19mDelta
Deal found 7/29$237
This Delta deal was found by Cheapflights users on 7/29. 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.
Wed 10/156:00 amHOU - SDF
1 stop4h 49mDelta
Sat 10/185:58 pmSDF - HOU
1 stop6h 02mDelta
Deal found 7/29$237
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 9/39:04 amHOU - SDF
1 stop7h 30mAmerican Airlines
Mon 9/812:25 pmSDF - HOU
1 stop4h 30mAmerican Airlines
Deal found 7/29$287

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston 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 30, 2025.
Use the filters below to find and compare flights from Houston to Louisville that are best for you.

Fly from

Houston

Fly to

Louisville

Route

Depart

Return

Price

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 8/14

6:25 am-8:18 pm

1 stop12h 53m

Louisville Intl

Thu 8/21

9:13 pm-5:00 am

1 stop8h 47m

$174

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 8/14

6:25 am-8:18 pm

1 stop12h 53m

Louisville Intl

Fri 8/15

12:24 pm-11:08 pm

1 stop11h 44m

$214

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Tue 8/19

4:35 pm-8:00 pm

Nonstop2h 25m

Louisville Intl

Wed 8/20

9:40 am-11:10 am

Nonstop2h 30m

$217

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Tue 8/26

11:25 am-6:25 pm

1 stop6h 00m

Louisville Intl

Sat 8/30

6:05 pm-7:25 pm

Nonstop2h 20m

$227

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 10/15

5:30 am-11:49 am

1 stop5h 19m

Louisville Intl

Sat 10/18

7:05 am-12:24 pm

1 stop6h 19m

$237

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Wed 10/15

6:00 am-11:49 am

1 stop4h 49m

Louisville Intl

Sat 10/18

5:58 pm-11:00 pm

1 stop6h 02m

$237

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Wed 9/3

9:04 am-5:34 pm

1 stop7h 30m

Louisville Intl

Mon 9/8

12:25 pm-3:55 pm

1 stop4h 30m

$287

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Fri 8/15

8:02 pm-6:53 pm

2 stops21h 51m

Louisville Intl

Sun 8/17

9:21 pm-7:12 pm

2 stops22h 51m

$355

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 10/22

5:25 am-10:57 pm

1 stop16h 32m

$83

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Sat 9/27

9:45 am-1:10 pm

Nonstop2h 25m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 18 results
1
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Best time to book a flight from Houston to Louisville

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

How far ahead should I book a flight from Houston to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Houston to Louisville. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Houston to Louisville, you should look to book at least 25 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Houston to Louisville?

Currently, January is the cheapest month in which you can book a flight from Houston to Louisville (average of $299). Flying from Houston 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 HOU to SDF?

Find hourly flight availability from Houston 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 30, 2025.

One of the essential ways to save on airfare from Houston to Louisville is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 27% on airfare.

What is the cheapest day to fly from Houston to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Houston to Louisville. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Houston to Louisville flight should consider departing on Friday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 30, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Houston to Louisville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Sun Country Air
6.9
Okay
334 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Houston 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?

    Most people fly into Louisville Intl (SDF) if they book a flight to Louisville from Houston. On average, Louisville Intl has 1 inbound flight from Houston per day from 5 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

  • What are the cheapest airlines flying from Houston to Louisville round-trip?

    Currently priced at $174, Spirit Airlines will fly you from Houston to Louisville and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Southwest - these airlines can fly you to your destination from $217 and $227, respectively. Users have found that Spirit Airlines is 53% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Houston to Louisville one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $83. Users have also found prices from $109 and $109 on United Airlines and Southwest, respectively.

  • What are the cheapest flights from Houston to Louisville?

    Looking at all options, your cheapest flight can be booked for $271. While the most popular route (Houston Hobby - Louisville Intl) can be booked for $174 on average our data indicates $323 when flying from Houston to Louisville.

  • Can I find deals for flights from Houston to Louisville that include hotel bookings?

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

  • How can I find direct flights from Houston to Louisville?

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

  • Can I find deals for business class flights from Houston to Louisville?

    Yes. Cheapflights offers flight deals from Houston 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 to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Houston to Louisville (average of $299). Flying from Houston 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 Louisville?

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

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Alternative routes for Houston to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Houston to Louisville

Discover the top 5 airlines that operate flights from Houston 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$348FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$178Average$245FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$236Average$467FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$261Average$360FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$267Average$428FlexibilityNo cancel feeOn-time69%

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