Louisville

$89+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SDF
Mar 8 — Mar 151
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Find cheap flights from Houston to Louisville with Cheapflights

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Cheapflights Tip: The best prices from Houston to Louisville Intl are usually found in August or September, booked 25 days in advance, depart on a Monday or Friday and return on a Sunday

Cheap 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 February 6, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/4. 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 2/262:41 pm
IAH
-
SDF
1 stop16h 59m
Multiple Airlines
Sat 2/2812:00 pm
SDF
-
IAH
1 stop7h 53m
Multiple Airlines
Deal found 2/4$175
This Delta deal was found by Cheapflights users on 2/4. 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.
Fri 4/177:00 am
IAH
-
SDF
1 stop4h 11m
Delta
Sun 4/197:05 am
SDF
-
IAH
1 stop5h 09m
Delta
Deal found 2/4$197
This Delta deal was found by Cheapflights users on 2/4. 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.
Fri 4/175:23 pm
HOU
-
SDF
1 stop4h 27m
Delta
Sun 4/197:05 am
SDF
-
HOU
1 stop6h 35m
Delta
Deal found 2/4$197
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/35:46 am
IAH
-
SDF
1 stop7h 52m
Spirit Airlines
Tue 3/103:33 pm
SDF
-
IAH
1 stop9h 45m
Spirit Airlines
Deal found 2/3$200
This American Airlines deal was found by Cheapflights users on 2/4. 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 3/56:16 pm
IAH
-
SDF
1 stop5h 11m
American Airlines
Mon 3/96:23 pm
SDF
-
IAH
1 stop6h 29m
American Airlines
Deal found 2/4$201
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 5/134:22 pm
IAH
-
SDF
2 stops24h 53m
Multiple Airlines
Tue 5/193:33 pm
SDF
-
IAH
1 stop9h 26m
Multiple Airlines
Deal found 2/5$203
This Delta deal was found by Cheapflights users on 2/4. 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.
Tue 3/35:30 am
IAH
-
SDF
1 stop4h 57m
Delta
Tue 3/33:33 pm
SDF
-
IAH
1 stop6h 40m
Delta
Deal found 2/4$205
This Delta deal was found by Cheapflights users on 2/4. 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 2/1810:50 am
HOU
-
SDF
1 stop5h 11m
Delta
Thu 2/195:49 pm
SDF
-
HOU
1 stop5h 39m
Delta
Deal found 2/4$205
This Kiwi.com deal was found by Cheapflights users on 2/5. 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 5/134:22 pm
IAH
-
SDF
1 stop21h 16m
Spirit Airlines
Tue 5/193:33 pm
SDF
-
IAH
1 stop9h 26m
Spirit Airlines
Deal found 2/5$206
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:35 am
IAH
-
SDF
1 stop6h 03m
Spirit Airlines
Sun 4/263:33 pm
SDF
-
IAH
1 stop9h 26m
Spirit Airlines
Deal found 2/3$207
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/309:22 am
IAH
-
SDF
1 stop25h 25m
Multiple Airlines
Tue 4/712:42 pm
SDF
-
IAH
1 stop12h 17m
Multiple Airlines
Deal found 2/3$208
This CheapOair deal was found by Cheapflights users on 2/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/254:22 pm
IAH
-
SDF
1 stop21h 16m
Spirit Airlines
Sun 3/13:33 pm
SDF
-
IAH
1 stop17h 27m
Spirit Airlines
Deal found 2/3$210

Find 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 February 6, 2026.

Round-trip from

$175
(Kiwi.com)

One-way from

$89
(Kiwi.com)

Popular in

May

Cheapest in

August

Average price

$433
From Houston to Louisville Intl
One-way flight from Houston to Louisville Intl
Highest demand for flights based on searches. 9% potential increase in price ($37 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 6, 2026.
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 6/11

5:55 am-1:49 pm

1 stop6h 54m

Louisville Intl

Mon 6/15

7:00 am-12:16 pm

1 stop6h 16m

$197

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Thu 5/7

1:16 pm-7:03 pm

1 stop4h 47m

Louisville Intl

Sun 5/10

6:00 am-12:11 pm

1 stop7h 11m

$197

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 5/13

4:22 pm-6:15 pm

2 stops24h 53m

Louisville Intl

Tue 5/19

3:33 pm-11:59 pm

1 stop9h 26m

$203

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Wed 2/18

10:50 am-5:01 pm

1 stop5h 11m

Louisville Intl

Thu 2/19

5:49 pm-10:28 pm

1 stop5h 39m

$205

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 5/13

4:22 pm-2:38 pm

1 stop21h 16m

Louisville Intl

Tue 5/19

3:33 pm-11:59 pm

1 stop9h 26m

$206

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 3/11

4:22 pm-2:33 pm

1 stop21h 11m

Louisville Intl

Mon 3/16

12:09 pm-10:37 pm

1 stop11h 28m

$234

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 3/25

6:27 pm-2:33 pm

1 stop19h 06m

Louisville Intl

Fri 3/27

12:09 pm-10:21 am

1 stop23h 12m

$235

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 4/17

12:05 pm-7:36 pm

2 stops30h 31m

Louisville Intl

Fri 4/24

12:33 pm-10:41 pm

1 stop11h 08m

$268

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Mon 2/23

6:40 pm-11:58 pm

1 stop4h 18m

Louisville Intl

Fri 2/27

7:51 pm-12:11 am

1 stop5h 20m

$270

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 4/17

6:03 pm-7:36 pm

1 stop24h 33m

Louisville Intl

Fri 4/24

12:33 pm-12:08 pm

1 stop24h 35m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 44 results
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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 January 30, 2026.

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, October is the cheapest month in which you can book a flight from Houston to Louisville (average of $85). Flying from Houston to Louisville in December is currently the most expensive (average of $216). 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 February 6, 2026.

When flying from Houston 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.

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 February 6, 2026.
See what other customers who have flown with Southwest, United Airlines, and American 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.

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 0 inbound flights from Houston 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 Houston to Louisville?

    Departing from Houston to Louisville will take you 6h 37m. There are 802 mi between Houston and Louisville. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $178, 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 American Airlines and Southwest - these airlines can fly you to your destination from $200 and $232, respectively. Users have found that Spirit Airlines is 51% 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 $79. Users have also found prices from $124 and $124 on United Airlines and American Airlines, respectively.

  • 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, October is the cheapest month in which you can book a flight from Houston to Louisville (average of $85). Flying from Houston to Louisville in December is currently the most expensive (average of $216). 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

Browse thousands of different options on Cheapflights for your next trip

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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.

Top 4 airlines flying from Houston to Louisville

Discover the top 4 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 February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$178Average$234FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$200Average$373FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$232Average$344FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$267Average$436FlexibilityNo cancel feeOn-time69%

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