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$116+ Cheap flights from St. Louis to Louisville (STL - 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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from St. Louis to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 June 12, 2025.

Round-trip from

$183
(American Airlines)

One-way from

$116
(Mytrip)

Popular in

November

Cheapest in

April

Average price

$330
From Lambert-St Louis to Louisville Intl
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One-way flight from Lambert-St Louis to Louisville Intl
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Highest demand for flights based on searches. 19% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from St. Louis to Louisville

Cheapest flights from St. Louis to Louisville
Explore the most affordable flight options available from St. Louis to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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 8/47:23 amSTL - SDF
1 stop9h 57mAmerican Airlines
Thu 8/76:44 amSDF - STL
1 stop14h 34mAmerican Airlines
Deal found 6/12$183
This Southwest deal was found by Cheapflights users on 6/12. 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.
Thu 8/75:30 amSTL - SDF
1 stop6h 00mSouthwest
Mon 8/116:25 amSDF - STL
1 stop3h 15mSouthwest
Deal found 6/12$197
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:23 pmSTL - SDF
1 stop5h 43mDelta
Sat 7/57:06 amSDF - STL
1 stop6h 29mDelta
Deal found 6/10$237
This Mytrip deal was found by Cheapflights users on 6/12. 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 8/710:47 amSTL - SDF
1 stop26h 08mMultiple Airlines
Mon 8/1112:16 pmSDF - STL
1 stop29h 15mMultiple Airlines
Deal found 6/12$249
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/266:36 pmSTL - SDF
2 stops16h 55mSpirit Airlines
Mon 6/3011:04 amSDF - STL
1 stop8h 14mSpirit Airlines
Deal found 6/11$253
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 7/45:00 amSTL - SDF
1 stop3h 57mUnited Airlines
Sun 7/67:00 amSDF - STL
1 stop4h 40mUnited Airlines
Deal found 6/10$306

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis 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 June 12, 2025.
Use the filters below to find and compare flights from St. Louis to Louisville that are best for you.

Fly from

St. Louis

Fly to

Louisville

Route

Depart

Return

Price

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Mon 8/4

7:23 am-6:20 pm

1 stop9h 57m

Louisville Intl

Thu 8/7

6:44 am-8:18 pm

1 stop14h 34m

$183

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Thu 8/7

5:30 am-12:30 pm

1 stop6h 00m

Louisville Intl

Mon 8/11

6:25 am-8:40 am

1 stop3h 15m

$197

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 7/1

5:23 pm-12:06 am

1 stop5h 43m

Louisville Intl

Sat 7/5

7:06 am-12:35 pm

1 stop6h 29m

$237

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Thu 8/7

10:47 am-1:55 pm

1 stop26h 08m

Louisville Intl

Mon 8/11

12:16 pm-4:31 pm

1 stop29h 15m

$249

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Thu 6/26

6:36 pm-12:31 pm

2 stops16h 55m

Louisville Intl

Mon 6/30

11:04 am-6:18 pm

1 stop8h 14m

$253

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Fri 7/4

5:00 am-9:57 am

1 stop3h 57m

Louisville Intl

Sun 7/6

7:00 am-10:40 am

1 stop4h 40m

$306

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sun 6/29

6:36 pm-12:31 pm

2 stops16h 55m

$116

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Fri 6/20

9:20 am-2:45 pm

3 stops28h 25m

$257

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 6/17

8:10 am-1:19 pm

1 stop4h 09m

$276

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 6/17

6:00 am-2:54 pm

2 stops7h 54m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from St. Louis to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from St. Louis 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 St. Louis to Louisville

What is the cheapest month to book a flight from St. Louis to Louisville?

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

Find hourly flight availability from St. Louis 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 June 12, 2025.

One of the essential ways to save on airfare from St. Louis to Louisville is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 21% on airfare.

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines from St. Louis to Louisville by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,052 reviews
Southwest
8.0
Very good
4,287 reviews

Food

7.1

Overall

8.0

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from St. Louis to Louisville round-trip?

    Our cheapest airline available from St. Louis to Louisville is American Airlines. Our recent data shows that you can find tickets from as low as $183 on this airline. Additional options worth looking into are Southwest and Delta, starting at $197 and $237 round-trip. These flights start at 55% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Louisville one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $116. Users have also found prices from $276 and $281 on United Airlines and American Airlines, respectively.

  • Can I find deals for flights from St. Louis to Louisville that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Louisville?

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

  • Can I find deals for business class flights from St. Louis to Louisville?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Louisville?

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

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

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Top 2 airlines flying from St. Louis to Louisville

Discover the top 2 airlines that operate flights from St. Louis 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$216Average$544FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$220Average$341FlexibilityNo cancel feeOn-time71%

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