$68 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 2/25. 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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Cheap Flights from St. Louis to Kentucky

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Louisville
Louisville2 stops$256
Lexington
Lexington2 stops$229
Nashville
Nashville1 stop$154
Louisville
Louisville2 stops$256
Lexington
Lexington2 stops$229
Nashville
Nashville1 stop$154

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

Wed, Jan 21 - Thu, Jan 22
Frontier Logo
5:42 pm - 1:00 pm
STL
-
CVG
18h 18m1 stop
Frontier Logo
5:39 pm - 11:33 pm
CVG
-
STL
6h 54m1 stop
$152Frontier
Sat, Feb 7 - Tue, Feb 10
Multiple Airlines Logo
12:12 pm - 7:17 pm
STL
-
BNA
7h 05m1 stop
Multiple Airlines Logo
6:28 am - 10:27 pm
BNA
-
STL
15h 59m1 stop
$154Multiple Airlines
Tue, Jan 13 - Sat, Jan 17
Frontier Logo
5:11 pm - 5:48 pm
STL
-
CVG
23h 37m1 stop
Frontier Logo
2:27 pm - 10:34 pm
CVG
-
STL
9h 07m1 stop
$166Frontier
Thu, Jan 8 - Sun, Jan 11
Southern / Mokulele Logo
9:50 am - 1:48 pm
STL
-
BNA
3h 58m1 stop
Southern / Mokulele Logo
2:35 pm - 6:36 pm
BNA
-
STL
4h 01m1 stop
$170Southern / Mokulele
Mon, Jan 26 - Thu, Jan 29
Southern / Mokulele Logo
9:50 am - 1:48 pm
STL
-
BNA
3h 58m1 stop
Southern / Mokulele Logo
2:35 pm - 6:36 pm
BNA
-
STL
4h 01m1 stop
$172Southern / Mokulele
Sat, Jan 17 - Sun, Jan 18
American Airlines Logo
1:40 pm - 11:45 pm
STL
-
CVG
9h 05m2 stops
American Airlines Logo
10:00 am - 1:03 pm
CVG
-
STL
4h 03m1 stop
$234American Airlines
Tue, Feb 17 - Thu, Feb 19
American Airlines Logo
7:00 am - 3:37 pm
STL
-
TYS
7h 37m1 stop
American Airlines Logo
5:02 pm - 9:37 pm
TYS
-
STL
5h 35m1 stop
$234American Airlines
Sat, Jan 24 - Sat, Jan 31
Delta Logo
6:00 am - 11:08 am
STL
-
TYS
4h 08m1 stop
Delta Logo
5:40 am - 8:53 am
TYS
-
STL
4h 13m1 stop
$235Delta
Sat, Jan 31 - Thu, Feb 5
Southwest Logo
1:45 pm - 10:05 pm
STL
-
SDF
7h 20m2 stops
Southwest Logo
6:25 am - 2:20 pm
SDF
-
STL
8h 55m2 stops
$334Southwest
Fri, Jan 23 - Sun, Jan 25
Delta Logo
9:59 am - 2:36 pm
STL
-
SDF
3h 37m1 stop
Delta Logo
6:23 am - 10:43 am
SDF
-
STL
5h 20m1 stop
$395Delta
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.

Which airlines fly non-stop between St. Louis and Kentucky?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Kentucky.

There are 3 airlines that fly nonstop from St. Louis to Kentucky. They are: American Airlines, Southwest and Delta. The cheapest price of all airlines flying this route was found with Southwest at $216 for a round-trip flight to Louisville (SDF). On average, Delta offers the best prices for nonstop flights between St. Louis and Kentucky.

Which airlines provide the cheapest flights from St. Louis to Kentucky?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Kentucky were found on Frontier ($166) and Southern / Mokulele ($170).

Good to know

Low seasonApril
Cheapest flight$68
Best time to beat the crowds with an average 35% drop in price.
Most popular time to fly and prices are also 55% 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 3 airlines serving 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.
8.0
SouthwestOverall score based on 4251 reviews
7.0Food
8.0Comfort
8.6Crew
7.5Entertainment
8.1Boarding
Airline reviews

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

2.0 MediocreMatthew, Dec 2025
DCA - OKC
Read more Southwest reviews

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

The flight was delayed for about 2 hrs. Other than it, it was good.

Advertised fruit trays with cheese, but only snacks handed out!

Better service. No food options, but we did get drinks and a cookie.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

WiFi didn’t work the entire flight. Very disappointing. Minimal food and options - sadly the state of current affairs. All other aspects of the flight were fine.

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

The boarding by groups is pointless. The first two groups worked fine, but almost Noone boarded in goups three thru five leaving the vast majority boarding when group six was called. It defeated the purpose of spreading out the crowd.

For whatever reason, the flight was not catered -we were told it would be a 45 minute delay waiting for catering - so no food. There were opened candy and peanuts in the seatback pocket. Flight landed early in DFW but due to the assigned gate not being available, we sat on the ground for 30 minutes waiting for the gate to open - making the flight actually arrive at the gate late.

The pilot greased the landing and the crew was fantastic.

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

Information on your arrival and departure airports