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$57+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SDF
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 Friday or Monday 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Fri 12/266:55 pmIAH - SDF
1 stop28h 04mSpirit Airlines
Tue 1/203:36 pmSDF - IAH
1 stop9h 22mSpirit Airlines
Deal found 12/16$403
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/256:29 amIAH - SDF
1 stop8h 30mAmerican Airlines
Wed 12/318:00 amSDF - IAH
1 stop7h 03mAmerican Airlines
Deal found 12/16$405
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/236:05 pmIAH - SDF
2 stops47h 59mMultiple Airlines
Tue 1/65:05 amSDF - IAH
1 stop28h 58mMultiple Airlines
Deal found 12/16$414
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/246:05 pmIAH - SDF
2 stops19h 10mMultiple Airlines
Sat 1/35:05 amSDF - IAH
1 stop10h 11mMultiple Airlines
Deal found 12/16$421
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/257:20 amIAH - SDF
1 stop9h 08mUnited Airlines
Wed 12/312:00 pmSDF - IAH
1 stop11h 30mUnited Airlines
Deal found 12/18$451
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/236:55 pmIAH - SDF
1 stop28h 04mSpirit Airlines
Tue 1/65:05 amSDF - IAH
1 stop28h 58mSpirit Airlines
Deal found 12/16$477
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/247:55 pmIAH - SDF
1 stop16h 18mUnited Airlines
Fri 1/29:05 amSDF - IAH
Nonstop2h 55mUnited Airlines
Deal found 12/17$495
This American Airlines deal was found by Cheapflights users on 12/18. 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 12/255:40 amHOU - SDF
1 stop10h 48mAmerican Airlines
Wed 12/316:35 amSDF - HOU
1 stop10h 14mAmerican Airlines
Deal found 12/18$536
This Delta deal was found by Cheapflights users on 12/16. 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 12/266:00 amHOU - SDF
1 stop6h 35mDelta
Tue 1/205:35 amSDF - HOU
1 stop5h 46mDelta
Deal found 12/16$635
This Delta deal was found by Cheapflights users on 12/16. 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 12/236:00 amHOU - SDF
1 stop4h 26mDelta
Thu 1/16:00 amSDF - HOU
1 stop5h 01mDelta
Deal found 12/16$713
This Southwest deal was found by Cheapflights users on 12/17. 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.
Fri 12/195:25 pmHOU - SDF
Nonstop2h 05mSouthwest
Sat 1/311:20 pmSDF - HOU
1 stop6h 50mSouthwest
Deal found 12/17$730
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/2510:13 amHOU - SDF
1 stop10h 21mAmerican Airlines
Sun 12/2810:49 amSDF - HOU
1 stop5h 58mAmerican Airlines
Deal found 12/16$738

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 December 18, 2025.

Round-trip from

$168
(Kiwi.com)

One-way from

$57
(Kiwi.com)

Popular in

May

Cheapest in

August

Average price

$374
From Houston to Louisville Intl
Search Deals
One-way flight from Houston to Louisville Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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

Tue 1/13

8:16 pm-1:00 pm

1 stop15h 44m

Louisville Intl

Thu 1/15

3:36 pm-11:58 pm

1 stop9h 22m

$168

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Tue 1/13

4:35 pm-1:00 pm

2 stops19h 25m

Louisville Intl

Thu 1/15

3:36 pm-11:58 pm

1 stop9h 22m

$191

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Mon 2/23

1:19 pm-2:38 pm

2 stops24h 19m

Louisville Intl

Thu 2/26

3:33 pm-12:10 am

1 stop9h 37m

$209

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 4/30

5:45 am-2:38 pm

1 stop7h 53m

Louisville Intl

Sun 5/3

3:33 pm-11:59 pm

1 stop9h 26m

$318

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Tue 1/13

4:35 pm-7:54 pm

Nonstop2h 19m

Louisville Intl

Thu 1/15

6:00 am-7:48 am

Nonstop2h 48m

$323

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Wed 1/7

5:45 am-11:37 am

1 stop4h 52m

Louisville Intl

Wed 1/14

6:00 am-10:21 am

1 stop5h 21m

$333

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Thu 2/19

1:05 pm-4:15 pm

Nonstop2h 10m

Louisville Intl

Sun 2/22

7:55 pm-9:30 pm

Nonstop2h 35m

$336

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Thu 2/19

6:25 pm-9:46 pm

Nonstop2h 21m

Louisville Intl

Sun 2/22

9:15 am-11:02 am

Nonstop2h 47m

$336

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Thu 5/7

4:25 pm-7:35 pm

Nonstop2h 10m

Louisville Intl

Thu 5/14

10:40 am-12:15 pm

Nonstop2h 35m

$339

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 4/17

6:37 pm-10:03 pm

Nonstop2h 26m

Louisville Intl

Mon 4/20

6:00 am-7:39 am

Nonstop2h 39m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 35 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 December 12, 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, October is the cheapest month in which you can book a flight from Houston to Louisville (average of $83). Flying from Houston to Louisville in December is currently the most expensive (average of $210). 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 December 18, 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 at noon could potentially save you up to 29% on airfare.

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 December 18, 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
7.9
Good
4,250 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
Delta
7.9
Good
8,005 reviews
Southwest
7.9
Good
4,250 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
United Airlines
7.4
Good
9,091 reviews
Southwest
7.9
Good
4,250 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
American Airlines
7.2
Good
11,054 reviews
Southwest
7.9
Good
4,250 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
Spirit Airlines
6.3
Okay
8,190 reviews
Southwest
7.9
Good
4,250 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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 5 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 2h 10m. 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 $169, Delta will fly you from Houston to Louisville and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and American Airlines - these airlines can fly you to your destination from $178 and $200, respectively. Users have found that Delta 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 $79. Users have also found prices from $124 and $125 on American Airlines and Delta, 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 $83). Flying from Houston to Louisville in December is currently the most expensive (average of $210). 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.
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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$333FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$178Average$225FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$200Average$362FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$251Average$346FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$267Average$427FlexibilityNo cancel feeOn-time69%

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