$69 Find Cheap Flights from St. Louis to Kentucky

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Kentucky departing on 6/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Kentucky

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Kentucky, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Kentucky, as well as popular online travel agencies
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Flight Deals

Cheap Flights from St. Louis to Kentucky

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Louisville
Louisville1 stop$295
Lexington
Lexington1 stop$315
Nashville
Nashvillenonstop$137
Louisville
Louisville1 stop$295
Lexington
Lexington1 stop$315
Nashville
Nashvillenonstop$137

Book Cheap St. Louis to Kentucky Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Kentucky that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Kentucky

Tue, Jul 7 - Tue, Jul 14
Southwest Logo
1:45 pm - 2:55 pm
STL
-
BNA
1h 10mnonstop
Southwest Logo
6:25 am - 7:45 am
BNA
-
STL
1h 20mnonstop
$137Southwest
Tue, Jul 7 - Tue, Jul 14
Southwest Logo
11:20 am - 4:40 pm
STL
-
BNA
5h 20m
1 stop
Southwest Logo
6:25 am - 7:45 am
BNA
-
STL
1h 20mnonstop
$147Southwest
Thu, Jun 25 - Mon, Jun 29
Southern / Mokulele Logo
2:00 pm - 6:03 pm
STL
-
BNA
4h 03m
1 stop
Southern / Mokulele Logo
9:30 am - 1:21 pm
BNA
-
STL
3h 51m
1 stop
$180Southern / Mokulele
Fri, Jun 26 - Mon, Jun 29
Southern / Mokulele Logo
2:00 pm - 1:48 pm
STL
-
BNA
23h 48m
1 stop
Southern / Mokulele Logo
2:35 pm - 6:36 pm
BNA
-
STL
4h 01m
1 stop
$211Southern / Mokulele
Sat, Jul 4 - Tue, Jul 7
Delta Logo
8:00 am - 1:54 pm
STL
-
BNA
5h 54m
1 stop
Delta Logo
6:55 pm - 11:53 pm
BNA
-
STL
4h 58m
1 stop
$228Delta
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
4:09 pm - 11:46 pm
STL
-
CVG
6h 37m
1 stop
Frontier Logo
12:18 pm - 5:37 pm
CVG
-
STL
6h 19m
1 stop
$230Frontier
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
4:09 pm - 11:46 pm
STL
-
CVG
6h 37m
1 stop
Frontier Logo
12:18 pm - 5:37 pm
CVG
-
STL
6h 19m
1 stop
$231Frontier
Wed, Jun 24 - Wed, Jul 1
American Airlines Logo
5:08 am - 10:48 am
STL
-
TYS
4h 40m
1 stop
American Airlines Logo
7:59 pm - 11:44 pm
TYS
-
STL
4h 45m
1 stop
$249American Airlines
Tue, Jun 16 - Tue, Jun 23
American Airlines Logo
11:18 am - 6:38 pm
STL
-
TYS
6h 20m
1 stop
American Airlines Logo
6:43 pm - 12:16 am
TYS
-
STL
6h 33m
1 stop
$269American Airlines
Tue, Jun 16 - Wed, Jun 24
Delta Logo
6:30 am - 1:39 pm
STL
-
SDF
6h 09m
1 stop
Delta Logo
7:49 am - 1:09 pm
SDF
-
STL
6h 20m
1 stop
$295Delta
Booking Insights

KAYAK's insights & trends for St. Louis to Kentucky flights

Get data-powered insights and trends into flights from St. Louis to Kentucky to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Kentucky?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Kentucky departing in June.

What is the cheapest month to fly from St. Louis to Kentucky?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Kentucky, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Kentucky is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are June and October, when the average cost of round-trip tickets is $588 and $527 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$69
Best time to beat the crowds with an average 44% drop in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from St. Louis to Nashville

FAQs - booking Kentucky flights

  • How does KAYAK find such low prices on flights from St. Louis to Kentucky?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Kentucky.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Kentucky?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Kentucky is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Kentucky?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from St. Louis to Kentucky with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Kentucky?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Kentucky up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to Kentucky

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Kentucky. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Kentucky? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8434 reviews
7.8Comfort
7.8Entertainment
7.2Food
8.1Boarding
8.5Crew
Airline reviews

Planes were clean, no water or snacks on either flight.

6.0 GoodAnonymous, May 2026
ECP - ATL
Read more Delta reviews

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Everything you need to know for your flight from St. Louis to Kentucky

Information on your arrival and departure airports

St. Louis (STL)