Kentucky

$68+ Cheap flights from St. Louis (STL) to Kentucky

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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Jan 11 — Jan 181
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Cheap flight deals from St. Louis to Kentucky

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

This Trip.com deal was found by Cheapflights users on 12/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/139:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Mon 12/152:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 12/9$161
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Tue 12/162:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 12/11$171
This Expedia deal was found by Cheapflights users on 12/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Fri 12/192:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 12/9$172
This Kiwi.com deal was found by Cheapflights users on 12/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Mon 12/292:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 12/10$192
This Southern / Mokulele deal was found by Cheapflights users on 12/9. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Sun 12/282:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 12/9$193
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Sun 12/282:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 12/11$224
This Southern / Mokulele deal was found by Cheapflights users on 12/10. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Fri 12/122:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 12/10$225
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:30 amSTL - CVG
1 stop5h 47mUnited Airlines
Wed 12/315:45 pmCVG - STL
1 stop4h 58mUnited Airlines
Deal found 12/11$229
This Frontier deal was found by Cheapflights users on 12/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:42 amSTL - CVG
1 stop7h 36mFrontier
Mon 12/225:05 amCVG - STL
1 stop5h 40mFrontier
Deal found 12/10$238
This Southern / Mokulele deal was found by Cheapflights users on 12/9. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Sun 12/282:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 12/9$247
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:30 amSTL - LEX
1 stop5h 46mUnited Airlines
Tue 12/306:00 amLEX - STL
1 stop7h 27mUnited Airlines
Deal found 12/11$278
This Frontier deal was found by Cheapflights users on 12/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:42 amSTL - CVG
1 stop4h 41mFrontier
Sun 1/119:05 pmCVG - STL
1 stop12h 00mFrontier
Deal found 12/11$297

Find flight deals from St. Louis to Kentucky

Keep the following information in mind while searching for St. Louis to Kentucky flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$146
(Frontier)

One-way from

$68
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$544
Provider with most accurate pricing for Lambert-St Louis-Louisville Intl flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Louisville Intl flights.
From Lambert-St Louis to Kentucky
One-way flight from Lambert-St Louis to Kentucky
Highest demand for flights based on searches. 12% potential increase in price ($67 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

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

Fly from

St. Louis

Fly to

Kentucky

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 1/26

1:40 pm-8:53 pm

1 stop6h 13m

Cincinnati Cinci./N. Kentucky

Mon 2/2

5:39 pm-11:33 pm

1 stop6h 54m

$146

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Mon 1/26

10:16 am-4:55 pm

1 stop6h 39m

Nashville Intl

Tue 1/27

5:50 pm-11:33 pm

1 stop29h 43m

$150

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Wed 1/7

5:11 pm-8:29 am

1 stop15h 18m

Nashville Intl

Fri 1/9

7:31 pm-10:02 am

1 stop14h 31m

$156

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 1/8

5:11 pm-10:52 am

1 stop16h 41m

Cincinnati Cinci./N. Kentucky

Thu 1/15

9:30 pm-6:51 am

1 stop10h 21m

$162

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Fri 1/23

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Sun 1/25

2:35 pm-6:36 pm

1 stop4h 01m

$172

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 1/1

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Sun 1/4

2:35 pm-6:36 pm

1 stop4h 01m

$172

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Mon 1/26

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Thu 1/29

2:35 pm-6:36 pm

1 stop4h 01m

$172

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Fri 2/27

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Sun 3/1

2:35 pm-6:36 pm

1 stop4h 01m

$172

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 3/26

9:50 am-1:55 pm

1 stop4h 05m

Nashville Intl

Sun 3/29

2:35 pm-6:41 pm

1 stop4h 06m

$172

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 2/26

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Sun 3/1

2:35 pm-6:36 pm

1 stop4h 01m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 60 results
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Best time to book a flight from St. Louis to Kentucky

Have a flexible travel schedule? Discover the best time to fly to Kentucky 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 Kentucky

What is the cheapest time of day to fly from STL to KY?

Find hourly flight availability from St. Louis to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 8% on flights from St. Louis to Kentucky by exploring options for tickets in the morning.

Reviews of airlines servicing Kentucky

Get insights into the airlines that provide service to Kentucky. 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 Kentucky. Reviews last updated December 12, 2025.
See what other customers who have flown with Southwest, Delta, and American Airlines from St. Louis to Kentucky have to say. 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.

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

7.9

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

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

7.9

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

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

7.9

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

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

7.9

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 St. Louis to Kentucky. 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 St. Louis to Kentucky?

    For a flight from St. Louis to Kentucky, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • How long is the flight from St. Louis to Kentucky?

    Departing from St. Louis to Kentucky will take you 3h 58m. Airlines will cover a distance of 272 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from St. Louis to Kentucky?

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Kentucky by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for St. Louis to Kentucky

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from St. Louis to Kentucky

Discover the top 3 airlines that operate flights from St. Louis to Kentucky. 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$216Average$550FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$228Average$323FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$288FlexibilityNo cancel feeOn-timeN/A

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