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$67+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — SDF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 Sunday 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 September 11, 2025.

Round-trip from

$133
(United Airlines)

One-way from

$67
(United Airlines)

Popular in

May

Cheapest in

August

Average price

$320
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. 8% potential increase in price ($33 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 September 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 10/216:25 pmIAH - SDF
Nonstop2h 29mUnited Airlines
Wed 10/227:15 amSDF - IAH
Nonstop2h 28mUnited Airlines
Deal found 9/10$133
This United Airlines deal was found by Cheapflights users on 9/9. 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 10/16:25 pmIAH - SDF
Nonstop2h 29mUnited Airlines
Sat 10/45:48 pmSDF - IAH
1 stop6h 02mUnited Airlines
Deal found 9/9$159
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/46:00 amHOU - SDF
1 stop4h 45mAmerican Airlines
Tue 10/74:45 pmSDF - HOU
1 stop6h 29mAmerican Airlines
Deal found 9/9$159
This Priceline deal was found by Cheapflights users on 9/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:47 pmIAH - SDF
1 stop8h 17mSpirit Airlines
Tue 9/308:23 amSDF - IAH
1 stop10h 49mSpirit Airlines
Deal found 9/11$170
This American Airlines deal was found by Cheapflights users on 9/11. 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 11/62:24 pmIAH - SDF
1 stop6h 36mAmerican Airlines
Sat 11/86:34 pmSDF - IAH
1 stop4h 54mAmerican Airlines
Deal found 9/11$172
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 9/306:00 amHOU - SDF
1 stop4h 39mAmerican Airlines
Thu 10/26:22 pmSDF - HOU
1 stop6h 26mAmerican Airlines
Deal found 9/11$172
This Southwest deal was found by Cheapflights users on 9/9. 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.
Wed 10/111:20 amHOU - SDF
1 stop7h 35mSouthwest
Sat 10/46:05 pmSDF - HOU
Nonstop2h 25mSouthwest
Deal found 9/9$174
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/36:25 pmIAH - SDF
Nonstop2h 29mUnited Airlines
Mon 10/67:20 pmSDF - IAH
1 stop5h 39mUnited Airlines
Deal found 9/9$175
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/242:25 pmIAH - SDF
1 stop4h 56mAmerican Airlines
Tue 10/284:28 pmSDF - IAH
1 stop6h 55mAmerican Airlines
Deal found 9/10$176
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Fri 9/2612:47 pmIAH - SDF
1 stop8h 17mSpirit Airlines
Sun 9/288:23 amSDF - IAH
1 stop10h 49mSpirit Airlines
Deal found 9/9$183
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/36:01 amIAH - SDF
1 stop4h 44mAmerican Airlines
Mon 10/66:17 pmSDF - IAH
1 stop4h 38mAmerican Airlines
Deal found 9/9$185
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/36:00 amHOU - SDF
1 stop4h 45mAmerican Airlines
Mon 10/66:00 amSDF - HOU
1 stop4h 33mAmerican Airlines
Deal found 9/9$185

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 September 11, 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

Wed 10/1

6:25 pm-9:54 pm

Nonstop2h 29m

Louisville Intl

Sat 10/4

5:48 pm-10:50 pm

1 stop6h 02m

$159

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Tue 11/11

4:24 pm-10:01 pm

1 stop4h 37m

Louisville Intl

Wed 11/19

10:51 am-3:54 pm

1 stop6h 03m

$159

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 9/26

12:47 pm-10:04 pm

1 stop8h 17m

Louisville Intl

Tue 9/30

8:23 am-6:12 pm

1 stop10h 49m

$170

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Wed 10/1

11:20 am-7:55 pm

1 stop7h 35m

Louisville Intl

Sat 10/4

6:05 pm-7:30 pm

Nonstop2h 25m

$174

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 1/23

6:20 am-1:28 pm

1 stop6h 08m

Louisville Intl

Sun 1/25

6:00 am-7:48 am

Nonstop2h 48m

$175

HoustonLouisville

HOU - SDF

HOUSDF

Houston Hobby

Fri 10/3

6:00 am-11:45 am

1 stop4h 45m

Louisville Intl

Mon 10/6

6:00 am-9:33 am

1 stop4h 33m

$185

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 11/7

12:17 pm-11:45 pm

1 stop10h 28m

Louisville Intl

Sat 11/8

6:00 am-5:42 pm

1 stop12h 42m

$201

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Wed 10/15

6:00 am-4:36 pm

1 stop9h 36m

Louisville Intl

Sun 10/19

6:58 pm-12:28 am

1 stop6h 30m

$206

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Fri 10/24

6:25 pm-9:54 pm

Nonstop2h 29m

Louisville Intl

Tue 10/28

3:35 pm-5:13 pm

Nonstop2h 38m

$219

HoustonLouisville

IAH - SDF

IAHSDF

Houston George Bush Intcntl

Sat 10/11

9:45 am-1:10 pm

Nonstop2h 25m

Louisville Intl

Mon 10/20

9:40 am-11:12 am

Nonstop2h 32m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 37 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 August 29, 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 September 11, 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 Monday mornings 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 September 11, 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
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 29m. There are 787 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 Southwest - these airlines can fly you to your destination from $178 and $251, respectively. Users have found that Delta is 54% 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 United Airlines. According to our data, you can fly for as low as $67. Users have also found prices from $67 and $80 on Southwest and American Airlines, respectively.

  • What are the cheapest flights from Houston to Louisville?

    Looking at all options, your cheapest flight can be booked for $261. While the most popular route (Houston Hobby - Louisville Intl) can be booked for $133 on average, our data indicates $303 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$366FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$178Average$244FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$251Average$351FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$259Average$430FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$274Average$468FlexibilityNo cancel feeOn-time71%

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