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$57+ Cheap flights from Louisville (SDF) to Houston

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.
SDF — HOU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Houston are usually found in May or August, booked 69 days in advance, depart on a Sunday or Wednesday and return on a Friday

Cheap flight deals from Louisville to Houston

Cheapest flights from Louisville to Houston
Explore the most affordable flight options available from Louisville to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/15. 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.
Mon 12/295:49 pmSDF - IAH
1 stop6h 46mAmerican Airlines
Thu 1/16:29 amIAH - SDF
1 stop9h 50mAmerican Airlines
Deal found 12/15$405
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 12/316:00 amSDF - IAH
Nonstop2h 48mUnited Airlines
Fri 1/28:48 amIAH - SDF
Nonstop2h 18mUnited Airlines
Deal found 12/17$469
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 12/305:05 amSDF - IAH
1 stop28h 58mSpirit Airlines
Sun 1/47:45 pmIAH - SDF
2 stops27h 14mSpirit Airlines
Deal found 12/16$471
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 12/2311:18 amSDF - IAH
2 stops31h 05mMultiple Airlines
Tue 12/306:55 pmIAH - SDF
1 stop28h 04mMultiple Airlines
Deal found 12/16$472
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 12/315:05 amSDF - IAH
1 stop17h 49mSpirit Airlines
Sun 1/47:45 pmIAH - SDF
2 stops27h 14mSpirit Airlines
Deal found 12/16$476
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:25 pmSDF - IAH
Nonstop2h 48mUnited Airlines
Sun 1/48:48 amIAH - SDF
Nonstop2h 18mUnited Airlines
Deal found 12/16$486
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 12/308:30 amSDF - IAH
1 stop6h 17mDelta
Fri 1/27:00 amIAH - SDF
1 stop5h 35mDelta
Deal found 12/16$489
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:49 pmSDF - HOU
1 stop4h 35mDelta
Fri 1/26:00 amHOU - SDF
1 stop6h 35mDelta
Deal found 12/17$489
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:05 pmSDF - HOU
1 stop5h 15mSouthwest
Sun 1/43:55 pmHOU - SDF
2 stops8h 25mSouthwest
Deal found 12/16$494
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.
Mon 12/295:05 amSDF - IAH
1 stop28h 58mSpirit Airlines
Sun 1/47:45 pmIAH - SDF
2 stops27h 14mSpirit Airlines
Deal found 12/16$499
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/293:25 pmSDF - IAH
Nonstop2h 48mUnited Airlines
Thu 1/17:20 amIAH - SDF
1 stop14h 10mUnited Airlines
Deal found 12/15$505
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 12/315:05 amSDF - IAH
1 stop17h 49mMultiple Airlines
Sun 1/49:34 pmIAH - SDF
2 stops25h 25mMultiple Airlines
Deal found 12/16$510

Find flight deals from Louisville to Houston

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

$142
(Kiwi.com)

One-way from

$57
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$386
From Louisville Intl to Houston
Search Deals
One-way flight from Louisville Intl to Houston
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Houston 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 Louisville to Houston that are best for you.

Fly from

Louisville

Fly to

Houston

Route

Depart

Return

Price

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 1/16

1:55 pm-7:24 pm

1 stop6h 29m

Houston George Bush Intcntl

Thu 1/29

7:45 am-2:41 pm

1 stop5h 56m

$204

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 1/30

1:55 pm-11:34 pm

1 stop10h 39m

Houston George Bush Intcntl

Sun 2/1

5:46 am-2:41 pm

1 stop7h 55m

$226

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 1/16

1:55 pm-6:58 pm

1 stop30h 03m

Houston George Bush Intcntl

Fri 1/23

7:45 am-6:04 pm

1 stop9h 19m

$231

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 1/16

1:55 pm-11:34 pm

1 stop10h 39m

Houston George Bush Intcntl

Tue 1/20

8:30 am-1:00 pm

3 stops27h 30m

$244

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 1/16

1:55 pm-7:24 pm

1 stop6h 29m

Houston George Bush Intcntl

Mon 1/19

7:45 am-2:41 pm

1 stop29h 56m

$262

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Tue 1/20

9:15 am-11:08 am

Nonstop2h 53m

Houston George Bush Intcntl

Tue 1/20

6:40 pm-9:59 pm

Nonstop2h 19m

$313

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Tue 1/13

6:00 am-7:48 am

Nonstop2h 48m

Houston George Bush Intcntl

Tue 1/20

4:35 pm-7:54 pm

Nonstop2h 19m

$313

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 1/16

6:00 am-7:48 am

Nonstop2h 48m

Houston George Bush Intcntl

Tue 1/20

6:40 pm-9:59 pm

Nonstop2h 19m

$326

LouisvilleHouston

SDF - HOU

SDFHOU

Louisville Intl

Tue 1/13

12:36 pm-4:10 pm

1 stop4h 34m

Houston Hobby

Tue 1/20

11:09 am-5:01 pm

1 stop4h 52m

$333

LouisvilleHouston

SDF - HOU

SDFHOU

Louisville Intl

Tue 2/10

11:05 am-4:00 pm

1 stop5h 55m

Houston Hobby

Fri 2/20

4:55 pm-8:00 pm

Nonstop2h 05m

$336

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 34 results
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Best time to book a flight from Louisville to Houston

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

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

Use this chart to determine the optimal time to book a round-trip flight from Louisville to Houston. Price data was last updated on December 12, 2025.

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Louisville to Houston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from Louisville to Houston (average of $98). Flying from Louisville to Houston in April is currently the most expensive (average of $167). 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 SDF to HOU?

Find hourly flight availability from Louisville to Houston. 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.

When flying from Louisville to Houston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 44% versus a flight in the afternoon.

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

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

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

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated December 18, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Louisville to Houston 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

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

7.9

Comfort

8.0

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 Louisville to Houston. 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 from for flights from Louisville to Houston?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Louisville to Houston. 5 airlines have flights from Louisville Intl to Houston on a regular basis. Booking flights from Louisville Intl to Houston should not be difficult; the airport handles an average of 0 outbound flights to Houston per day.

  • How long is the flight from Louisville to Houston?

    Spirit Airlines, Delta, and Southwest can get you from Louisville to Houston in just under 4h 34m. Your travel time can differ by up to 1h 55m. The distance from Louisville to Houston is about 802 mi. This flight may include one or multiple stops.

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

    Delta, at $108, was found to be the cheapest airline from Louisville to Houston.Alternate airlines to your destination round-trip include Spirit Airlines and Southwest. These flights start at 70% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Louisville to Houston are Spirit Airlines ($81), American Airlines ($102), and Delta ($108).

  • What are the cheapest flights from Louisville to Houston?

    The cheapest flight price from Louisville to Houston is $214. On average you can expect to pay $317. The most popular route, (Louisville Intl - Houston Hobby), can usually be booked for $142.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to Houston 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 Louisville to Houston?

    Currently, September is the cheapest month in which you can book a flight from Louisville to Houston (average of $98). Flying from Louisville to Houston in April is currently the most expensive (average of $167). 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

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Alternative routes for Louisville to Houston

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

Discover the top 5 airlines that operate flights from Louisville to Houston. 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
Spirit AirlinesCheapest$153Average$250FlexibilityNo cancel feeOn-time65%
DeltaCheapest$216Average$338FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$219Average$347FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$250Average$351FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$265Average$399FlexibilityNo cancel feeOn-time69%

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