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Kentucky

$55+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$139
(Mytrip)

One-way from

$55
(Priceline)

Popular in

July

Cheapest in

April

Average price

$527
Provider with most accurate pricing for Lambert-St Louis-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Louisville Intl flights.
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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. 16% potential increase in price ($91 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/27. 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.
Tue 11/117:45 pmSTL - CVG
1 stop25h 23mFrontier
Thu 11/1311:00 amCVG - STL
1 stop7h 27mFrontier
Deal found 10/27$139
This Booking.com deal was found by Cheapflights users on 10/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:45 pmSTL - CVG
1 stop25h 23mFrontier
Sat 11/158:00 amCVG - STL
1 stop8h 38mFrontier
Deal found 10/26$141
This Frontier deal was found by Cheapflights users on 10/27. 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 11/79:07 pmSTL - CVG
1 stop8h 47mFrontier
Thu 11/1311:00 amCVG - STL
1 stop7h 27mFrontier
Deal found 10/27$143
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:12 pmSTL - BNA
1 stop22h 07mFrontier
Fri 11/143:42 pmBNA - STL
1 stop17h 25mFrontier
Deal found 10/28$144
This Trip.com deal was found by Cheapflights users on 10/25. 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 11/19:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Mon 11/32:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 10/25$153
This Trip.com deal was found by Cheapflights users on 10/28. 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 11/159:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Sun 11/162:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 10/28$154
This FlightHub deal was found by Cheapflights users on 10/26. 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.
Tue 11/119:50 amSTL - BNA
1 stop3h 58mMultiple Airlines
Thu 11/133:42 pmBNA - STL
1 stop17h 25mMultiple Airlines
Deal found 10/26$157
This Gotogate deal was found by Cheapflights users on 10/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:45 pmSTL - BNA
1 stop19h 02mFrontier
Mon 11/103:42 pmBNA - STL
1 stop17h 25mFrontier
Deal found 10/27$163
This Mytrip deal was found by Cheapflights users on 10/26. 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 12/49:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Mon 12/82:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 10/26$168
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/109:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Fri 11/142:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 10/26$170
This Southern / Mokulele deal was found by Cheapflights users on 10/27. 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.
Tue 11/49:50 amSTL - BNA
1 stop3h 58mSouthern / Mokulele
Thu 11/62:35 pmBNA - STL
1 stop4h 01mSouthern / Mokulele
Deal found 10/27$172
This Frontier deal was found by Cheapflights users on 10/26. 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 11/149:07 pmSTL - CVG
1 stop8h 47mFrontier
Sun 11/165:10 amCVG - STL
1 stop9h 07mFrontier
Deal found 10/26$176

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 October 28, 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

Tue 11/11

7:45 pm-10:08 pm

1 stop25h 23m

Cincinnati Cinci./N. Kentucky

Thu 11/13

11:00 am-5:27 pm

1 stop7h 27m

$139

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 11/7

9:07 pm-6:54 am

1 stop8h 47m

Cincinnati Cinci./N. Kentucky

Thu 11/13

11:00 am-5:27 pm

1 stop7h 27m

$143

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 11/13

2:12 pm-12:11 am

1 stop8h 59m

Cincinnati Cinci./N. Kentucky

Fri 11/14

5:10 am-10:20 am

1 stop6h 10m

$143

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 11/13

2:12 pm-12:19 pm

1 stop22h 07m

Nashville Intl

Fri 11/14

3:42 pm-9:07 am

1 stop17h 25m

$144

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Mon 11/24

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Mon 12/1

2:35 pm-6:36 pm

1 stop4h 01m

$153

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Sat 11/1

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Mon 11/3

2:35 pm-6:36 pm

1 stop4h 01m

$153

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 11/13

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Sat 11/15

3:42 pm-9:07 am

1 stop17h 25m

$157

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Tue 11/11

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Thu 11/13

2:35 pm-6:36 pm

1 stop4h 01m

$172

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Tue 11/4

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Thu 11/6

2:35 pm-6:36 pm

1 stop4h 01m

$172

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 11/6

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

Fri 11/7

2:35 pm-6:36 pm

1 stop4h 01m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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, July is the cheapest month in which you can book a flight from St. Louis to Kentucky (average of $165). Flying from St. Louis to Kentucky in October is currently the most expensive (average of $389). 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 October 28, 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 October 28, 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
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

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
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

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
7.9
Good
7,994 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

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
11,032 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

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 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 cheapest airlines to fly from St. Louis to Kentucky one-way?

    $55 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southern / Mokulele and American Airlines, with prices starting from $89 and $140, 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 - Nashville Intl, Lambert-St Louis - Knoxville McGhee Tyson 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, July is the cheapest month in which you can book a flight from St. Louis to Kentucky (average of $165). Flying from St. Louis to Kentucky in October is currently the most expensive (average of $389). 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$216Average$550FlexibilityNo cancel feeOn-time63%
DeltaCheapest$228Average$288FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$323FlexibilityNo cancel feeOn-time71%

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