$59 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 4/28. 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
Louisville1 stop$221
Lexington
Lexington1 stop$300
Nashville
Nashvillenonstop$97
Louisville
Louisville1 stop$221
Lexington
Lexington1 stop$300
Nashville
Nashvillenonstop$97

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, May 20 - Wed, May 20
Southwest Logo
11:35 am - 12:45 pm
STL
-
BNA
1h 10mnonstop
Southwest Logo
8:40 pm - 10:00 pm
BNA
-
STL
1h 20mnonstop
$97Southwest
Wed, May 20 - Wed, May 20
Southwest Logo
11:35 am - 12:45 pm
STL
-
BNA
1h 10mnonstop
Southwest Logo
4:00 pm - 7:50 pm
BNA
-
STL
3h 50m
1 stop
$107Southwest
Thu, Apr 30 - Mon, May 4
Frontier Logo
4:59 pm - 3:52 pm
STL
-
CVG
21h 53m
1 stop
Frontier Logo
6:00 am - 11:19 pm
CVG
-
STL
18h 19m
1 stop
$142Frontier
Thu, Apr 30 - Mon, May 4
Frontier Logo
11:21 am - 6:05 pm
STL
-
CVG
5h 44m
1 stop
Frontier Logo
7:46 pm - 5:36 pm
CVG
-
STL
22h 50m
1 stop
$160Frontier
Sat, May 9 - Mon, May 11
Multiple Airlines Logo
4:19 pm - 9:03 am
STL
-
SDF
15h 44m
1 stop
Multiple Airlines Logo
10:33 am - 5:33 pm
SDF
-
STL
32h 00m
2 stops
$221Multiple Airlines
Wed, May 6 - Wed, May 13
United Airlines Logo
9:21 am - 2:07 pm
STL
-
SDF
3h 46m
1 stop
United Airlines Logo
5:40 am - 8:39 am
SDF
-
STL
3h 59m
1 stop
$275United Airlines
Sat, May 9 - Mon, May 11
Delta Logo
7:05 pm - 11:59 pm
STL
-
LEX
3h 54m
1 stop
Delta Logo
8:19 pm - 11:59 pm
LEX
-
STL
4h 40m
1 stop
$300Delta
Sat, May 23 - Sun, May 31
United Airlines Logo
1:13 pm - 7:09 pm
STL
-
LEX
4h 56m
1 stop
United Airlines Logo
9:00 am - 12:11 pm
LEX
-
STL
4h 11m
1 stop
$310United Airlines
Tue, Apr 21 - Sat, Apr 25
Delta Logo
4:41 pm - 9:23 pm
STL
-
LEX
3h 42m
1 stop
Delta Logo
5:50 pm - 8:44 pm
LEX
-
STL
3h 54m
1 stop
$319Delta
Sat, May 23 - Sun, May 31
Multiple Airlines Logo
5:27 pm - 8:52 am
STL
-
LEX
38h 25m
2 stops
Multiple Airlines Logo
9:37 am - 10:43 am
LEX
-
STL
26h 06m
1 stop
$367Multiple Airlines
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 May.

Good to know

Low seasonJanuary
Cheapest flight$59
Best time to beat the crowds with an average 44% drop in price.
Most popular time to fly with an average 1% increase in price.
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.
7.4
United AirlinesOverall score based on 9569 reviews
7.1Entertainment
7.3Comfort
6.6Food
8.1Crew
7.7Boarding
Airline reviews

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

10.0 ExcellentDr. Joseph, Apr 2026
IAH - ORD
Read more United Airlines reviews

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

This was the first flight in the morning. We boarded fine. The cabin door was closed and we were ready to go. We were notified by the Captain that ATC issued and ground stop for 40 minutes. So, without even pushing back from the gate, we were already 40 minutes late. We actually were released to push-back and taxi at 30 minutes. But, some passengers had tight connections and were not going to make their connections. Some passengers asked about the delay and the effect on the connections and were told by the cabin attendant that all flights will be delayed and so they should be OK. However, that was not true. My connecting flight was on time and I arrived at IAH with 21 minutes to make my connection. I did and I'm happy about that, but the flight crew should not have given assurances to the passengers who might have missed their connections.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

Flights were on time actually early service was good and crew cheerful

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

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

Information on your arrival and departure airports