$59 Find Cheap Flights from St. Louis to Kentucky - Compare and Save

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 7/28. 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

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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$261
Lexington
Lexington1 stop$280
Nashville
Nashvillenonstop$117
Louisville
Louisville1 stop$261
Lexington
Lexington1 stop$280
Nashville
Nashvillenonstop$117

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 28 - Tue, Aug 4
Southwest Logo
10:15 am - 11:25 am
STL
-
BNA
1h 10mnonstop
Southwest Logo
8:55 pm - 10:10 pm
BNA
-
STL
1h 15mnonstop
$117Southwest
Sat, Aug 15 - Tue, Aug 18
Southwest Logo
8:30 am - 2:35 pm
STL
-
BNA
6h 05m
1 stop
Southwest Logo
12:45 pm - 1:55 pm
BNA
-
STL
1h 10mnonstop
$127Southwest
Fri, Jul 31 - Fri, Aug 7
Frontier Logo
4:57 pm - 11:48 am
STL
-
CVG
17h 51m
1 stop
Frontier Logo
12:53 pm - 8:57 am
CVG
-
STL
21h 04m
1 stop
$139Frontier
Mon, Aug 17 - Mon, Aug 24
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
$162Southern / Mokulele
Sun, Aug 9 - Tue, Aug 11
Frontier Logo
6:34 pm - 11:48 am
STL
-
CVG
16h 14m
1 stop
Frontier Logo
12:18 pm - 5:37 pm
CVG
-
STL
6h 19m
1 stop
$164Frontier
Wed, Aug 5 - Fri, Aug 7
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
$164Southern / Mokulele
Thu, Aug 6 - Mon, Aug 10
Multiple Airlines Logo
6:34 pm - 11:48 am
STL
-
CVG
16h 14m
1 stop
Multiple Airlines Logo
1:14 pm - 5:37 pm
CVG
-
STL
29h 23m
2 stops
$180Multiple Airlines
Tue, Oct 27 - Tue, Nov 3
Delta Logo
6:00 am - 11:01 am
STL
-
TYS
4h 01m
1 stop
Delta Logo
5:45 am - 8:49 am
TYS
-
STL
4h 04m
1 stop
$211Delta
Sat, Aug 8 - Mon, Aug 10
Delta Logo
1:04 pm - 8:10 pm
STL
-
TYS
6h 06m
1 stop
Delta Logo
7:41 pm - 11:58 pm
TYS
-
STL
5h 17m
1 stop
$214Delta
Sun, Oct 18 - Mon, Oct 26
Multiple Airlines Logo
8:34 pm - 3:56 pm
STL
-
TRI
18h 22m
1 stop
Multiple Airlines Logo
4:36 pm - 9:40 am
TRI
-
STL
18h 04m
2 stops
$356Multiple 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.

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 5 days.

In the past 5 days, the cheapest round-trip tickets from St. Louis to Kentucky were found on Southwest ($166) and Southern / Mokulele ($172).

Good to know

Low seasonJanuary
Cheapest flight$59
Best time to beat the crowds with an average 23% 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.
7.8
DeltaOverall score based on 8453 reviews
7.8Comfort
8.1Boarding
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

Our flight was delayed by over 4 hours due to a maintenance issue. They announced a new plane was on the way. We were given a $12 food voucher ( airport food is quite expensive You can’t even by a water and a small snack for 12:00. 4 hours later we boarded and landed in Atlanta at 10:20 ish pm. Of course we missed our connection and we were given a hotel voucher and another food voucher ! We didn’t make it home until 11:00 the next day ! Unacceptable

2.0 MediocreAnonymous, Jul 2026
MCI - ATL
Read more Delta reviews

Our flight was delayed by over 4 hours due to a maintenance issue. They announced a new plane was on the way. We were given a $12 food voucher ( airport food is quite expensive You can’t even by a water and a small snack for 12:00. 4 hours later we boarded and landed in Atlanta at 10:20 ish pm. Of course we missed our connection and we were given a hotel voucher and another food voucher ! We didn’t make it home until 11:00 the next day ! Unacceptable

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

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

Information on your arrival and departure airports