$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 4/22. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
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$335
Lexington
Lexington1 stop$271
Nashville
Nashvillenonstop$117
Louisville
Louisville1 stop$335
Lexington
Lexington1 stop$271
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, Apr 28 - Tue, Apr 28
Southwest Logo
11:35 am - 12:45 pm
STL
-
BNA
1h 10mnonstop
Southwest Logo
8:40 pm - 10:00 pm
BNA
-
STL
1h 20mnonstop
$117Southwest
Tue, Apr 28 - Tue, Apr 28
Southwest Logo
5:40 am - 10:35 am
STL
-
BNA
4h 55m
1 stop
Southwest Logo
6:00 pm - 7:15 pm
BNA
-
STL
1h 15mnonstop
$127Southwest
Sun, May 3 - Tue, May 12
Frontier Logo
11:28 am - 6:16 pm
STL
-
CVG
5h 48m
1 stop
Frontier Logo
12:12 pm - 5:33 pm
CVG
-
STL
6h 21m
1 stop
$140Frontier
Wed, May 6 - Tue, May 12
Frontier Logo
5:27 pm - 11:04 am
STL
-
CVG
16h 37m
1 stop
Frontier Logo
12:12 pm - 8:55 am
CVG
-
STL
21h 43m
1 stop
$158Frontier
Thu, May 28 - Wed, Jun 3
American Airlines Logo
6:00 am - 12:42 pm
STL
-
TYS
5h 42m
1 stop
American Airlines Logo
6:12 am - 10:37 am
TYS
-
STL
5h 25m
1 stop
$263American Airlines
Wed, Jun 17 - Sat, Jun 20
United Airlines Logo
1:13 pm - 7:09 pm
STL
-
LEX
4h 56m
1 stop
United Airlines Logo
5:45 pm - 9:16 pm
LEX
-
STL
4h 31m
1 stop
$271United Airlines
Tue, Apr 28 - Tue, May 5
Delta Logo
11:42 am - 7:10 pm
STL
-
LEX
6h 28m
1 stop
Delta Logo
5:50 pm - 8:44 pm
LEX
-
STL
3h 54m
1 stop
$290Delta
Thu, Apr 23 - Sun, Apr 26
American Airlines Logo
5:51 am - 10:31 am
STL
-
LEX
3h 40m
1 stop
American Airlines Logo
6:00 am - 12:48 pm
LEX
-
STL
7h 48m
1 stop
$309American Airlines
Wed, Apr 29 - Wed, May 6
Delta Logo
7:25 am - 1:03 pm
STL
-
TRI
4h 38m
1 stop
Delta Logo
7:19 pm - 11:35 pm
TRI
-
STL
5h 16m
1 stop
$309Delta
Wed, May 6 - Fri, May 8
United Airlines Logo
8:21 am - 2:07 pm
STL
-
SDF
4h 46m
1 stop
United Airlines Logo
5:40 am - 8:39 am
SDF
-
STL
3h 59m
1 stop
$335United 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 43% drop in price.
Most popular time to fly and prices are also 26% 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.
7.9
DeltaOverall score based on 8369 reviews
7.9Comfort
8.1Boarding
7.2Food
7.8Entertainment
8.5Crew
Airline reviews

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

10.0 ExcellentAnonymous, Apr 2026
MIA - DTW
Read more Delta reviews

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

Awful. No counter attendants. No dinner offered due to delays.

I have never been assaulted they way I was today in Charlotte - shame on American

One of our group members was struggling to walk. In Charlotte we asked for a wheelchair and she was accompanied by Desmond. I was impressed by his patience and attention. In Boston she received the same service. I didn’t get the name of the helper but she went above and beyond in assisting us. A great AA service

Better snacks but flight and crew were amazing on this flight

Found that the plane used for this short flight is smaller and therefore the seats are really squeezed tight.

It was the most un-special flight experience in my life.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Flight was on-time, boarding was flawless and the crew was friendly.

The staff are very, very professional. It's what flying should feel like.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

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

Information on your arrival and departure airports