$66 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 4/23. 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$273
Lexington
Lexington1 stop$249
Nashville
Nashvillenonstop$124
Louisville
Louisville2 stops$273
Lexington
Lexington1 stop$249
Nashville
Nashvillenonstop$124

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, Apr 1 - Mon, Apr 6
Southwest Logo
6:00 pm - 7:10 pm
STL
-
BNA
1h 10mnonstop
Southwest Logo
6:25 am - 7:45 am
BNA
-
STL
1h 20mnonstop
$124Southwest
Thu, Apr 23 - Sat, Apr 25
Southwest Logo
8:45 pm - 9:55 pm
STL
-
BNA
1h 10mnonstop
Southwest Logo
12:15 pm - 1:35 pm
BNA
-
STL
1h 20mnonstop
$131Southwest
Thu, Mar 5 - Tue, Mar 10
Southern / Mokulele Logo
9:50 am - 1:48 pm
STL
-
BNA
3h 58m
1 stop
Southern / Mokulele Logo
2:35 pm - 6:41 pm
BNA
-
STL
4h 06m
1 stop
$155Southern / Mokulele
Tue, Mar 3 - Tue, Mar 10
Frontier Logo
3:49 pm - 2:10 pm
STL
-
CVG
21h 21m
1 stop
Frontier Logo
7:43 pm - 10:37 am
CVG
-
STL
15h 54m
1 stop
$158Frontier
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
3:49 pm - 12:59 am
STL
-
CVG
8h 10m
1 stop
Frontier Logo
7:14 pm - 11:59 pm
CVG
-
STL
5h 45m
1 stop
$160Frontier
Thu, Mar 5 - Tue, Mar 10
Southern / Mokulele Logo
9:50 am - 1:48 pm
STL
-
BNA
3h 58m
1 stop
Southern / Mokulele Logo
2:35 pm - 6:41 pm
BNA
-
STL
4h 06m
1 stop
$164Southern / Mokulele
Wed, Feb 25 - Sat, Feb 28
Delta Logo
6:00 am - 11:08 am
STL
-
TYS
4h 08m
1 stop
Delta Logo
5:35 am - 9:06 am
TYS
-
STL
4h 31m
1 stop
$251Delta
Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
6:00 am - 2:39 pm
STL
-
LEX
7h 39m
2 stops
American Airlines Logo
10:27 am - 3:35 pm
LEX
-
STL
6h 08m
1 stop
$254American Airlines
Thu, Feb 19 - Mon, Feb 23
Delta Logo
6:00 am - 11:50 am
STL
-
LEX
4h 50m
1 stop
Delta Logo
7:55 pm - 11:36 pm
LEX
-
STL
4h 41m
1 stop
$259Delta
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
10:43 am - 4:22 pm
STL
-
LEX
4h 39m
1 stop
American Airlines Logo
5:00 am - 1:43 pm
LEX
-
STL
9h 43m
2 stops
$264American 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 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Kentucky were found on Southwest ($124) and Frontier ($158).

Good to know

Low seasonNovember
Cheapest flight$66
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 43% 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 4278 reviews
7.0Food
7.5Entertainment
8.0Comfort
8.6Crew
8.1Boarding
Airline reviews

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

10.0 ExcellentCarol, Feb 2026
DEN - MSP
Read more Southwest reviews

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

I was assigned seat 7E, yet my boarding was Group 5, which caused me to have to put my luggage in the back of the plance above `19 or 20 aisle, as passengers who had boarded earlier took the overhead bins in the front. SW needs to monitor bin space and ensure that bin space above the seat are aligned to those sitting near their seats. Also the seating assignments needs to align with group number. Maybe board those last first and so on? Having said the ALL the passengers on the plane were gracious enough to allow me and other passengers in this dilema to retrieve our luggage and helped us along the way. I always love the flight staff, as always their fantastic and I can't rave about them enough!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Flight attendants very hospitable and friendly. Pilot flew a smooth take off and landing.

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled. No snack or drink on this flight.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Got on the plane and sat there for an hour before departure.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

They double booked seats, the gate staff changed my ticket as I was boarding she went over to the computer and changed it without telling me. She messed up an entire three row section for me and others. Other travelers were outraged but the gate staff were so rude, so condescending saying it wasn't their problem to solve. I would rate this a zero if I could. Will not fly Delta again I'll stick with United and American.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

They are always late and seats was also not having working charger

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

did not have enough meal for first class passengers so offer us snack

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

I am very appreciative of the help provided to me by Dennis and Whitney. I had lost my phone at EWR airport and they were very kind in assisting me. This included advice on how to file a report and also helping me connect with family. The pilot was also great about keeping passengers updated on the flight progress with regular communications over the system.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

Old equipment, needs upgrade and seat comfort. Internet didn't work 75% or the time.

The screens were inoperable for movies and such, but everything else was just fine

For a 5 1/2 hour flite i considered the "business class" to be subpar. The seats were just ok, no amenities, really nothing more than a long domestic flight. Frankly disappointed.

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

Information on your arrival and departure airports