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Kentucky

$59+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$126
(Kiwi.com)

One-way from

$59
(Trip.com)

Popular in

November

Cheapest in

April

Average price

$298
From Lambert-St Louis to Kentucky
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One-way flight from Lambert-St Louis to Kentucky
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Highest demand for flights based on searches. 8% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($24 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 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 September 11, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:55 pmSTL - BNA
1 stop25h 49mFrontier
Fri 10/39:38 pmBNA - STL
1 stop11h 28mFrontier
Deal found 9/9$126
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/261:57 pmSTL - CVG
1 stop10h 00mFrontier
Mon 9/295:20 amCVG - STL
1 stop8h 42mFrontier
Deal found 9/10$143
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:55 pmSTL - BNA
1 stop26h 38mMultiple Airlines
Tue 10/72:35 pmBNA - STL
1 stop4h 01mMultiple Airlines
Deal found 9/10$154
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:49 amSTL - CVG
1 stop12h 10mFrontier
Mon 9/295:20 amCVG - STL
1 stop8h 42mFrontier
Deal found 9/10$156
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Thu 10/162:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 9/11$157
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.
Tue 11/116:00 amSTL - TYS
1 stop5h 43mAmerican Airlines
Sat 11/155:10 amTYS - STL
1 stop6h 29mAmerican Airlines
Deal found 9/10$165
This Southern / Mokulele 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/99:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Fri 10/102:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 9/11$173
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:21 amSTL - BNA
1 stop6h 16mDelta
Sat 11/159:20 amBNA - STL
1 stop6h 47mDelta
Deal found 9/10$177
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:50 amSTL - BNA
1 stop3h 58mMultiple Airlines
Sat 11/153:42 pmBNA - STL
1 stop17h 25mMultiple Airlines
Deal found 9/9$178
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:50 amSTL - BNA
1 stop3h 58mMultiple Airlines
Mon 10/69:38 pmBNA - STL
1 stop11h 29mMultiple Airlines
Deal found 9/11$180
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:45 pmSTL - BNA
1 stop3h 20mSouthwest
Wed 10/88:45 pmBNA - STL
Nonstop1h 20mSouthwest
Deal found 9/10$185
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:25 amSTL - BNA
1 stop4h 40mSouthwest
Sat 11/1512:45 pmBNA - STL
2 stops6h 45mSouthwest
Deal found 9/10$187

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 September 11, 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. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Tue 9/30

7:55 pm-9:44 pm

1 stop25h 49m

Nashville Intl

Fri 10/3

9:38 pm-9:06 am

1 stop11h 28m

$126

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 9/25

10:49 am-11:59 pm

1 stop12h 10m

Cincinnati Cinci./N. Kentucky

Mon 9/29

5:20 am-1:02 pm

1 stop8h 42m

$156

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Wed 11/12

6:05 pm-7:15 pm

Nonstop1h 10m

Nashville Intl

Sat 11/15

8:15 am-9:40 am

Nonstop1h 25m

$173

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Sat 10/11

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Mon 10/13

2:35 pm-6:36 pm

1 stop4h 01m

$173

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Fri 9/26

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Tue 9/30

2:35 pm-6:36 pm

1 stop4h 01m

$173

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 10/9

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Fri 10/10

2:35 pm-6:36 pm

1 stop4h 01m

$173

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Sat 10/11

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Sat 10/18

4:38 pm-9:07 am

1 stop16h 29m

$180

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Fri 10/3

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Mon 10/6

9:38 pm-9:07 am

1 stop11h 29m

$180

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 9/30

6:10 am-12:26 pm

1 stop5h 16m

Cincinnati Cinci./N. Kentucky

Wed 10/1

6:31 pm-9:53 pm

1 stop4h 22m

$189

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Wed 10/8

6:00 am-5:23 pm

1 stop10h 23m

Louisville Intl

Wed 10/15

5:53 pm-11:54 pm

1 stop7h 01m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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 month to book a flight from St. Louis to Kentucky?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Kentucky (average of $299). Flying from St. Louis to Kentucky 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 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 September 11, 2025.

When flying from St. Louis to Kentucky, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 11, 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.
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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 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 1h 10m. 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 cheapest airlines to fly from St. Louis to Kentucky one-way?

    $77 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on American Airlines and Frontier, with prices starting from $83 and $84, respectively.

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

    When deciding which route to take from St. Louis to Kentucky consider Lambert-St Louis - Knoxville McGhee Tyson, Lambert-St Louis - Nashville Intl or Lambert-St Louis - Cincinnati Cinci./N. Kentucky as they are the most popular.

  • 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.

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

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

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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.
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$226Average$550FlexibilityNo cancel feeOn-time63%
DeltaCheapest$228Average$288FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$323FlexibilityNo cancel feeOn-time71%

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