$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 1/24. 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 24% 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$257
Lexington
Lexington1 stop$229
Nashville
Nashville1 stop$150
Louisville
Louisville1 stop$257
Lexington
Lexington1 stop$229
Nashville
Nashville1 stop$150

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

Thu, Jan 8 - Sun, Jan 11
Southern / Mokulele Logo
9:50 am - 1:48 pmSTL-BNA
3h 58m1 stop
Southern / Mokulele Logo
2:35 pm - 6:36 pmBNA-STL
4h 01m1 stop
$150Southern / Mokulele
Find Deal
Fri, Dec 19 - Mon, Jan 5
Southern / Mokulele Logo
9:50 am - 1:48 pmSTL-BNA
3h 58m1 stop
Southern / Mokulele Logo
2:35 pm - 6:36 pmBNA-STL
4h 01m1 stop
$154Southern / Mokulele
Find Deal
Wed, Jan 7 - Sat, Jan 10
Frontier Logo
5:11 pm - 10:52 amSTL-CVG
16h 41m1 stop
Frontier Logo
7:13 pm - 8:40 amCVG-STL
14h 27m1 stop
$155Frontier
Find Deal
Thu, Dec 11 - Mon, Dec 15
Frontier Logo
3:30 pm - 10:52 amSTL-CVG
18h 22m1 stop
Frontier Logo
5:05 am - 10:33 pmCVG-STL
18h 28m1 stop
$163Frontier
Find Deal
Sat, Feb 21 - Tue, Feb 24
Delta Logo
10:12 am - 4:53 pmSTL-LEX
5h 41m1 stop
Delta Logo
3:46 pm - 7:22 pmLEX-STL
4h 36m1 stop
$229Delta
Find Deal
Wed, Dec 10 - Sat, Dec 13
American Airlines Logo
10:13 am - 3:14 pmSTL-TYS
4h 01m1 stop
American Airlines Logo
6:00 am - 1:13 pmTYS-STL
8h 13m1 stop
$251American Airlines
Find Deal
Sat, Dec 13 - Tue, Dec 16
Delta Logo
8:00 am - 3:37 pmSTL-CVG
6h 37m1 stop
Delta Logo
4:45 pm - 9:57 pmCVG-STL
6h 12m1 stop
$257Delta
Find Deal
Fri, Feb 6 - Mon, Feb 9
American Airlines Logo
9:54 am - 3:56 pmSTL-TYS
5h 02m1 stop
American Airlines Logo
11:19 am - 5:23 pmTYS-STL
7h 04m1 stop
$279American Airlines
Find Deal
Sat, Apr 4 - Wed, Apr 8
Southwest Logo
7:35 am - 1:10 pmSTL-TYS
4h 35m1 stop
Southwest Logo
7:05 am - 1:00 pmTYS-STL
6h 55m2 stops
$318Southwest
Find Deal
Thu, Dec 18 - Thu, Dec 18
Southwest Logo
7:50 am - 4:50 pmSTL-SDF
8h 00m2 stops
Southwest Logo
5:55 pm - 11:50 pmSDF-STL
6h 55m1 stop
$336Southwest
Find Deal
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 January.

What’s the cheapest day of the week to fly from St. Louis to Kentucky?

The average price of all round-trip flights from St. Louis to Kentucky clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Kentucky on a Thursday and more expensive on a Monday. On your return trip to St. Louis, you should consider flying back on a Saturday, and avoid Thursdays for better deals.

Good to know

Low seasonApril
Cheapest flight$68
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly and prices are also 54% 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.

  • What is the cheapest time of day to fly to Kentucky?

    The cheapest time of day to fly to Kentucky is generally in the morning, when round-trip flights cost $350 on average. Morning departures are around 8% cheaper than evening flights, on average. The most expensive time of day to fly to Kentucky is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $438.

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 4254 reviews
8.1Boarding
7.5Entertainment
8.0Comfort
8.6Crew
7.0Food
Airline reviews

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

10.0 ExcellentIlevba, Nov 2025DCA - DAL
Read more Southwest reviews

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

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

I had a positive experience on American. I'm blind and traveling with a guide dog and the flight attendants were so kind, friendly, and helpful towards us. They checked in on us during the flight and they made us feel comfortable and welcomed. There was an hour delay before depature, but overall the flight was a smooth ride. I appreciate that there were no issues on this long flight back home.

We were told the flight was delayed 5 times, then it was moved to the next day.

More choices on snacks. Built-in video screen to enjoy entertainment choices.

we landed at cmh ten minutes early but had to sit on tarmac for twenty minutes because a plane was at our gate despite the fact that 3 other gates were open.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

I have a gluten allergy so did have any food

I have a gluten allergy so didn't have any food

Loved the crew . Absolutely no complaints. Except for luggage lost

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

Information on your arrival and departure airports