How many flights depart from St. Louis to Kentucky on average per week?

The number of flights available between St. Louis and Kentucky is 12 per week as of December 2025. The most frequent departure day is Mon, with 33% of weekly flights leaving on this day.

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

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

What airlines fly to Kentucky?

American Airlines, Southwest and Delta 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 37% 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.

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?

As of December 2025, there are 5 operators available to choose from 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.

$80 Cheap Flights from St. Louis to Kentucky in 2025/26

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Find the cheapest flights from St. Louis to Kentucky

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:50 am - 1:48 pm

STL

BNA

3h 58m1 stop

2:35 pm - 6:36 pm

BNA

STL

4h 01m1 stop

$154Southern / Mokulele

mar., ene. 13 - mar., ene. 20

9:50 am - 1:48 pm

STL

BNA

3h 58m1 stop

2:35 pm - 6:36 pm

BNA

STL

4h 01m1 stop

$155Southern / Mokulele

jue., ene. 29 - lun., feb. 2

5:42 pm - 1:00 pm

STL

CVG

18h 18m1 stop

5:39 pm - 11:33 pm

CVG

STL

6h 54m1 stop

$169Frontier

mié., ene. 21 - vie., ene. 23

8:22 pm - 4:29 pm

STL

CVG

19h 07m2 stops

5:39 pm - 11:33 pm

CVG

STL

6h 54m1 stop

$191Frontier

mié., ene. 21 - vie., ene. 23

6:52 am - 12:19 pm

STL

LEX

4h 27m1 stop

7:17 pm - 11:12 pm

LEX

STL

4h 55m1 stop

$222American Airlines

jue., ene. 8 - jue., ene. 15

3:20 pm - 10:09 pm

STL

TYS

5h 49m1 stop

4:00 pm - 9:51 pm

TYS

STL

6h 51m2 stops

$230American Airlines

mar., ene. 13 - mar., ene. 20

5:00 pm - 11:52 pm

STL

TYS

5h 52m1 stop

5:30 am - 9:06 am

TYS

STL

4h 36m1 stop

$265Delta

sáb., feb. 21 - jue., feb. 26

3:38 pm - 11:05 pm

STL

SDF

6h 27m1 stop

3:33 pm - 8:41 pm

SDF

STL

6h 08m1 stop

$307Delta

sáb., feb. 28 - vie., mar. 6

5:30 am - 4:15 pm

STL

SDF

9h 45m2 stops

1:00 pm - 6:45 pm

SDF

STL

6h 45m1 stop

$312Southwest

sáb., feb. 28 - vie., mar. 6

11:35 am - 10:25 pm

STL

CVG

9h 50m2 stops

1:35 pm - 9:00 pm

CVG

STL

8h 25m2 stops

$324Southwest

mié., ene. 21 - vie., ene. 23

Southern / Mokulele flights from St. Louis to Kentucky

Our best Southern / Mokulele deals on St. Louis to Kentucky flight tickets

Southern / Mokulele

Jan 29

STL9:50 amLambert-St Louis

3h 58m

1 stop

BNA1:48 pmNashville Intl

Feb 2

BNA2:35 pmNashville Intl

4h 01m

1 stop

STL6:36 pmLambert-St Louis

$155

Find similar

Southern / Mokulele

Jan 12

STL9:50 amLambert-St Louis

3h 58m

1 stop

BNA1:48 pmNashville Intl

Jan 13

BNA2:35 pmNashville Intl

4h 01m

1 stop

STL6:36 pmLambert-St Louis

$159

Find similar

Southern / Mokulele

Jan 29

STL9:50 amLambert-St Louis

3h 58m

1 stop

BNA1:48 pmNashville Intl

Feb 5

BNA2:35 pmNashville Intl

4h 01m

1 stop

STL6:36 pmLambert-St Louis

$164

Find similar

Southwest flights from St. Louis to Kentucky

Our best Southwest deals on St. Louis to Kentucky flight tickets

Southwest

Jan 29

STL10:15 amLambert-St Louis

5h 35m

1 stop

BNA3:50 pmNashville Intl

Feb 2

BNA8:50 amNashville Intl

1h 25m

STL10:15 amLambert-St Louis

$203

Find similar

Southwest

Feb 5

STL2:35 pmLambert-St Louis

1h 10m

BNA3:45 pmNashville Intl

Feb 8

BNA8:35 pmNashville Intl

1h 20m

STL9:55 pmLambert-St Louis

$241

Find similar

Southwest

Feb 26

STL3:25 pmLambert-St Louis

5h 05m

1 stop

BNA8:30 pmNashville Intl

Mar 1

BNA4:55 pmNashville Intl

6h 30m

2 stops

STL11:25 pmLambert-St Louis

$266

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

mar. 1/13

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

mar. 1/20

2:35 pm-6:36 pm

1 stop4h 01m

$154

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

jue. 1/29

9:50 am-1:48 pm

1 stop3h 58m

Nashville Intl

lun. 2/2

2:35 pm-6:36 pm

1 stop4h 01m

$155

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mié. 1/21

5:42 pm-1:00 pm

1 stop18h 18m

Cincinnati Cinci./N. Kentucky

vie. 1/23

5:39 pm-11:33 pm

1 stop6h 54m

$169

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mié. 1/21

8:22 pm-4:29 pm

2 stops19h 07m

Cincinnati Cinci./N. Kentucky

vie. 1/23

5:39 pm-11:33 pm

1 stop6h 54m

$191

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

jue. 1/8

6:52 am-12:19 pm

1 stop4h 27m

Lexington Blue Grass

jue. 1/15

7:17 pm-11:12 pm

1 stop4h 55m

$222

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

mar. 1/13

3:20 pm-10:09 pm

1 stop5h 49m

Knoxville McGhee Tyson

mar. 1/20

4:00 pm-9:51 pm

2 stops6h 51m

$230

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

sáb. 2/21

5:00 pm-11:52 pm

1 stop5h 52m

Knoxville McGhee Tyson

jue. 2/26

5:30 am-9:06 am

1 stop4h 36m

$265

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

sáb. 2/28

3:38 pm-11:05 pm

1 stop6h 27m

Louisville Intl

vie. 3/6

3:33 pm-8:41 pm

1 stop6h 08m

$307

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

sáb. 2/28

5:30 am-4:15 pm

2 stops9h 45m

Louisville Intl

vie. 3/6

1:00 pm-6:45 pm

1 stop6h 45m

$312

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mié. 1/21

11:35 am-10:25 pm

2 stops9h 50m

Cincinnati Cinci./N. Kentucky

vie. 1/23

1:35 pm-9:00 pm

2 stops8h 25m

$324

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to Kentucky?

Our data shows that Thursday is the least expensive day to fly to Kentucky. Tickets to fly out on this day can be as low as $346. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $391. These prices are subject to change though, so be sure to set up a Price Alert for flights to Kentucky.

What is the cheapest time of day to depart on your flight to Kentucky?

According to our data, the cheapest time of day to fly to Kentucky is in the morning. momondo users have found flights departing from St. Louis to Kentucky in the morning for as low as $350. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Kentucky is at noon when prices are around $438.

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	Every day
Airports in Kentucky	43 airports

The fastest flight from St. Louis to Kentucky takes 1h 10m

Direct flights go from St. Louis to Kentucky every day.

There are 43 airports in Kentucky. From St. Louis there are direct flights to Nashville Intl (BNA).

Search flight deals

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?
As of December 2025, there are 5 operators available to choose from 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
Southwest	PriceFrom $216	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights
American Airlines	PriceFrom $228	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
Delta	PriceFrom $228	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta 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.