Cheap flights from St. Louis to Kentucky from $59

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Kentucky departing on 4/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Kentucky

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
Tue, Apr 28 - Tue, Apr 28
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
Sun, May 3 - 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
Wed, May 6 - Tue, May 12
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
Thu, May 28 - Wed, Jun 3
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
Wed, Jun 17 - Sat, Jun 20
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
Tue, Apr 28 - Tue, May 5
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
Thu, Apr 23 - Sun, Apr 26
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, Apr 29 - Wed, May 6
United Airlines Logo
5:28 pm - 11:49 pm
STL
-
LEX
5h 21m
1 stop
United Airlines Logo
7:50 pm - 10:45 pm
LEX
-
STL
3h 55m
1 stop
$341United Airlines
Sat, May 9 - Wed, May 13

Southern / Mokulele flights from St. Louis to Kentucky

Our best Southern / Mokulele deals on St. Louis to Kentucky flight tickets
Southern / Mokulele
Apr 25
STL9:50 amLambert-St Louis
3h 58m
1 stop
BNA1:48 pmNashville Intl
Apr 27
BNA2:35 pmNashville Intl
4h 01m
1 stop
STL6:36 pmLambert-St Louis
$152
Southern / Mokulele
Apr 23
STL9:50 amLambert-St Louis
3h 58m
1 stop
BNA1:48 pmNashville Intl
Apr 27
BNA2:35 pmNashville Intl
4h 01m
1 stop
STL6:36 pmLambert-St Louis
$153
Southern / Mokulele
Apr 17
STL9:50 amLambert-St Louis
3h 58m
1 stop
BNA1:48 pmNashville Intl
Apr 24
BNA2:35 pmNashville Intl
4h 01m
1 stop
STL6:36 pmLambert-St Louis
$154

Southwest flights from St. Louis to Kentucky

Our best Southwest deals on St. Louis to Kentucky flight tickets
Southwest
Apr 28
STL11:35 amLambert-St Louis
1h 10m
BNA12:45 pmNashville Intl
Apr 28
BNA8:40 pmNashville Intl
1h 20m
STL10:00 pmLambert-St Louis
$117
Southwest
Apr 28
STL5:40 amLambert-St Louis
4h 55m
1 stop
BNA10:35 amNashville Intl
Apr 28
BNA6:00 pmNashville Intl
1h 15m
STL7:15 pmLambert-St Louis
$127
Southwest
Apr 28
STL6:40 pmLambert-St Louis
1h 10m
BNA7:50 pmNashville Intl
May 5
BNA12:40 pmNashville Intl
5h 15m
2 stops
STL5:55 pmLambert-St Louis
$132

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Kentucky that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated April 3, 2026.
Use the filters below to find and compare flights from St. Louis to Kentucky that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Tue 4/28

11:35 am-12:45 pm

Nonstop1h 10m

Nashville Intl

Tue 4/28

8:40 pm-10:00 pm

Nonstop1h 20m

$117

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Tue 4/28

5:40 am-10:35 am

1 stop4h 55m

Nashville Intl

Tue 4/28

6:00 pm-7:15 pm

Nonstop1h 15m

$127

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sun 5/3

11:28 am-6:16 pm

1 stop5h 48m

Cincinnati Cinci./N. Kentucky

Tue 5/12

12:12 pm-5:33 pm

1 stop6h 21m

$140

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 5/6

5:27 pm-11:04 am

1 stop16h 37m

Cincinnati Cinci./N. Kentucky

Tue 5/12

12:12 pm-8:55 am

1 stop21h 43m

$158

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Thu 5/28

6:00 am-12:42 pm

1 stop5h 42m

Knoxville McGhee Tyson

Wed 6/3

6:12 am-10:37 am

1 stop5h 25m

$263

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 6/17

1:13 pm-7:09 pm

1 stop4h 56m

Lexington Blue Grass

Sat 6/20

5:45 pm-9:16 pm

1 stop4h 31m

$271

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Tue 4/28

11:42 am-7:10 pm

1 stop6h 28m

Lexington Blue Grass

Tue 5/5

5:50 pm-8:44 pm

1 stop3h 54m

$290

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 4/23

5:51 am-10:31 am

1 stop3h 40m

Lexington Blue Grass

Sun 4/26

6:00 am-12:48 pm

1 stop7h 48m

$309

St. LouisBlountville

STL - TRI

STLTRI

Lambert-St Louis

Wed 4/29

7:25 am-1:03 pm

1 stop4h 38m

Blountville Tri Cities TN/VA

Wed 5/6

7:19 pm-11:35 pm

1 stop5h 16m

$309

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 5/9

5:28 pm-11:49 pm

1 stop5h 21m

Lexington Blue Grass

Wed 5/13

7:50 pm-10:45 pm

1 stop3h 55m

$341

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kentucky from

How to get the cheapest flight ticket from St. Louis to Kentucky

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Lambert-St Louis to Kentucky?

Southwest, Delta, and Frontier are the most popular carriers operating from Lambert-St Louis to Kentucky

What airlines fly to Kentucky?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Kentucky from St. Louis according to our data. American Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Kentucky. Keep in mind that there are 3 different airlines that fly to Kentucky on a routine basis, so you have a few additional options to choose from.

Cheap St. Louis to Kentucky flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Kentucky

Fastest flight time

1h 10m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Kentucky

43 airports
The fastest flight from St. Louis to Kentucky takes 1h 10m
Direct flights go from St. Louis to Kentucky on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.
There are 43 airports in Kentucky. From St. Louis there are direct flights to Nashville Intl (BNA).

Frequently asked questions about flying from St. Louis to Kentucky

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Kentucky?

    Prices for flights from Lambert-St Louis Airport to Kentucky refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Kentucky?

  • How old do you have to be to fly from Lambert-St Louis Airport to Kentucky?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Kentucky.

  • What documentation or ID do you need to fly to Kentucky?

    The travel and health documents you'll need for your trip to Kentucky may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Kentucky. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Kentucky

Compare and see reviews for airlines that fly from St. Louis to Kentucky with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $196Free CancellationRating
7.9
8,374 reviews
Search Delta flights
American AirlinesPriceFrom $253Free CancellationRating
7.1
11,551 reviews
Search American Airlines flights
United AirlinesPriceFrom $279Free CancellationRating
7.4
9,538 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Kentucky?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kentucky from St. Louis.

Can I find flights from St. Louis to Kentucky with flexible booking policies on momondo?

Yes. All flights to Kentucky from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Kentucky?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Kentucky.

I’m not ready to book a flight from St. Louis to Kentucky right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Kentucky flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Sun 5/3
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