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

American Airlines, Southwest, and Delta are the most popular carriers operating from Lambert-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?

As of November 2026, there are 2 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.

$157 Cheap Flights from St. Louis to Kentucky in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Kentucky

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:40 am - 2:05 pmSTL Lambert-St Louis-LEX Lexington Blue Grass

6h 25m1 stop Detroit Metropolitan Wayne County

7:55 pm - 11:56 pmLEX Lexington Blue Grass-STL Lambert-St Louis

5h 01m1 stop Atlanta Hartsfield-Jackson

$329Delta

Fri, Nov 27 - Mon, Nov 30

7:18 pm - 12:04 amSTL Lambert-St Louis-LEX Lexington Blue Grass

3h 46m1 stop Atlanta Hartsfield-Jackson

10:40 am - 1:30 pmLEX Lexington Blue Grass-STL Lambert-St Louis

3h 50m1 stop Detroit Metropolitan Wayne County

$329Delta

Wed, Dec 2 - Fri, Dec 11

6:00 am - 10:46 amSTL Lambert-St Louis-LEX Lexington Blue Grass

3h 46m1 stop Chicago O'Hare Intl

5:00 am - 10:19 amLEX Lexington Blue Grass-STL Lambert-St Louis

6h 19m1 stop Charlotte Douglas

$329American Airlines

Sat, Dec 19 - Sun, Dec 20

7:03 am - 11:47 amSTL Lambert-St Louis-LEX Lexington Blue Grass

3h 44m1 stop Atlanta Hartsfield-Jackson

5:59 pm - 9:38 pmLEX Lexington Blue Grass-STL Lambert-St Louis

4h 39m1 stop Atlanta Hartsfield-Jackson

$329Delta

Sat, Dec 12 - Sun, Dec 13

6:00 am - 11:47 amSTL Lambert-St Louis-LEX Lexington Blue Grass

4h 47m1 stop Atlanta Hartsfield-Jackson

5:53 pm - 10:04 pmLEX Lexington Blue Grass-STL Lambert-St Louis

5h 11m1 stop Atlanta Hartsfield-Jackson

$329Delta

Fri, Dec 18 - Sat, Dec 19

1:43 pm - 11:15 pmSTL Lambert-St Louis-LEX Lexington Blue Grass

8h 32m2 stops Chicago O'Hare Intl Charlotte Douglas

8:08 pm - 11:59 pmLEX Lexington Blue Grass-STL Lambert-St Louis

4h 51m1 stop Charlotte Douglas

$334American Airlines

Sat, Dec 12 - Sun, Dec 13

6:20 am - 10:30 amSTL Lambert-St Louis-SDF Louisville Intl

3h 10m1 stop Chicago Midway

3:45 pm - 11:05 pmSDF Louisville Intl-STL Lambert-St Louis

8h 20m1 stop Tampa

$343Southwest

Thu, Dec 10 - Sun, Dec 13

5:00 am - 1:13 pmSTL Lambert-St Louis-LEX Lexington Blue Grass

7h 13m1 stop Chicago O'Hare Intl

11:05 am - 4:52 pmLEX Lexington Blue Grass-STL Lambert-St Louis

6h 47m1 stop Chicago O'Hare Intl

$359United Airlines

Tue, Nov 24 - Sat, Nov 28

5:40 pm - 11:49 pmSTL Lambert-St Louis-SDF Louisville Intl

5h 09m1 stop Chicago O'Hare Intl

1:59 pm - 7:26 pmSDF Louisville Intl-STL Lambert-St Louis

6h 27m1 stop Chicago O'Hare Intl

$405United Airlines

Mon, Dec 14 - Wed, Dec 16

5:25 am - 1:02 pmSTL Lambert-St Louis-LEX Lexington Blue Grass

6h 37m1 stop Chicago O'Hare Intl

7:00 am - 12:22 pmLEX Lexington Blue Grass-STL Lambert-St Louis

6h 22m1 stop Chicago O'Hare Intl

$419United Airlines

Wed, Dec 9 - Sun, Dec 13

Cheap last minute flights

Enter your travel dates to find the best prices.

5:30 pm - 10:53 pmSTL Lambert-St Louis-SDF Louisville Intl

4h 23m1 stop Atlanta Hartsfield-Jackson

3:00 pm - 8:09 pmSDF Louisville Intl-STL Lambert-St Louis

6h 09m1 stop Atlanta Hartsfield-Jackson

$745Delta

Fri, Nov 13 - Sat, Nov 14

5:01 am - 12:43 pmSTL Lambert-St Louis-SDF Louisville Intl

6h 42m1 stop Chicago O'Hare Intl

6:16 pm - 10:15 pmSDF Louisville Intl-STL Lambert-St Louis

4h 59m1 stop Chicago O'Hare Intl

$745American Airlines

Fri, Nov 13 - Tue, Nov 17

1:25 pm - 10:15 pmSTL Lambert-St Louis-SDF Louisville Intl

7h 50m2 stops Dallas Love Field Nashville Intl

1:40 pm - 7:45 pmSDF Louisville Intl-STL Lambert-St Louis

7h 05m1 stop Orlando

$750Southwest

Fri, Nov 13 - Sat, Nov 14

4:40 pm - 12:25 amSTL Lambert-St Louis-SDF Louisville Intl

6h 45m2 stops Charlotte Douglas Baltimore/Washington

12:55 pm - 5:40 pmSDF Louisville Intl-STL Lambert-St Louis

5h 45m1 stop Orlando

$750Southwest

Fri, Nov 13 - Tue, Nov 17

4:30 pm - 12:25 amSTL Lambert-St Louis-SDF Louisville Intl

6h 55m2 stops Nashville Intl Baltimore/Washington

7:20 am - 1:50 pmSDF Louisville Intl-STL Lambert-St Louis

7h 30m2 stops Nashville Intl Dallas Love Field

$755Southwest

Fri, Nov 13 - Tue, Nov 17

4:40 pm - 12:25 amSTL Lambert-St Louis-SDF Louisville Intl

6h 45m2 stops Charlotte Douglas Baltimore/Washington

5:40 am - 11:40 amSDF Louisville Intl-STL Lambert-St Louis

7h 00m2 stops Baltimore/Washington Chicago Midway

$755Southwest

Fri, Nov 13 - Sat, Nov 14

10:20 am - 5:17 pmSTL Lambert-St Louis-SDF Louisville Intl

5h 57m1 stop Detroit Metropolitan Wayne County

5:40 pm - 8:29 pmSDF Louisville Intl-STL Lambert-St Louis

3h 49m1 stop Detroit Metropolitan Wayne County

$798Delta

Wed, Nov 11 - Wed, Nov 18

2:35 pm - 10:55 pmSTL Lambert-St Louis-SDF Louisville Intl

7h 20m1 stop Denver Intl

8:50 am - 1:40 pmSDF Louisville Intl-STL Lambert-St Louis

5h 50m2 stops Chicago Midway Nashville Intl

$803Southwest

Wed, Nov 11 - Wed, Nov 18

11:55 am - 8:35 pmSTL Lambert-St Louis-SDF Louisville Intl

7h 40m2 stops Dallas Love Field Chicago Midway

7:20 am - 1:45 pmSDF Louisville Intl-STL Lambert-St Louis

7h 25m2 stops Nashville Intl Atlanta Hartsfield-Jackson

$808Southwest

Wed, Nov 11 - Wed, Nov 18

4:26 pm - 12:19 amSTL Lambert-St Louis-SDF Louisville Intl

6h 53m1 stop Charlotte Douglas

1:32 pm - 6:17 pmSDF Louisville Intl-STL Lambert-St Louis

5h 45m1 stop Chicago O'Hare Intl

$851American Airlines

Fri, Nov 13 - Sat, Nov 14

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United Airlines flights from St. Louis to Kentucky

Our best United Airlines deals on St. Louis to Kentucky flight tickets

United Airlines

Dec 14

STL5:40 pmLambert-St Louis

5h 09m

1 stop

SDF11:49 pmLouisville Intl

Dec 16

SDF1:59 pmLouisville Intl

6h 27m

1 stop

STL7:26 pmLambert-St Louis

$405

United Airlines

Dec 9

STL5:25 amLambert-St Louis

6h 37m

1 stop

LEX1:02 pmLexington Blue Grass

Dec 13

LEX7:00 amLexington Blue Grass

6h 22m

1 stop

STL12:22 pmLambert-St Louis

$419

United Airlines

Dec 14

STL5:40 pmLambert-St Louis

5h 09m

1 stop

SDF11:49 pmLouisville Intl

Dec 16

SDF1:59 pmLouisville Intl

6h 27m

1 stop

STL7:26 pmLambert-St Louis

$442

American Airlines flights from St. Louis to Kentucky

Our best American Airlines deals on St. Louis to Kentucky flight tickets

American Airlines

Dec 10

STL8:24 pmLambert-St Louis

15h 16m

1 stop

SDF12:40 pmLouisville Intl

Dec 12

SDF10:13 amLouisville Intl

14h 49m

1 stop

STL12:02 amLambert-St Louis

$303

American Airlines

Dec 12

STL1:43 pmLambert-St Louis

8h 32m

2 stops

LEX11:15 pmLexington Blue Grass

Dec 13

LEX8:08 pmLexington Blue Grass

4h 51m

1 stop

STL11:59 pmLambert-St Louis

$334

American Airlines

Dec 19

STL6:00 amLambert-St Louis

3h 46m

1 stop

LEX10:46 amLexington Blue Grass

Dec 20

LEX1:17 pmLexington Blue Grass

10h 15m

2 stops

STL10:32 pmLambert-St Louis

$344

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisLexington

STL Lambert-St Louis - LEX Lexington Blue Grass

STLLEX

Lambert-St Louis

Fri 11/27

6:40 am-2:05 pm

1 stop6h 25m

Lexington Blue Grass

Mon 11/30

7:55 pm-11:56 pm

1 stop5h 01m

$329

Quickest round-trip

St. LouisLexington

STL Lambert-St Louis - LEX Lexington Blue Grass

STLLEX

Lambert-St Louis

Wed 12/2

7:18 pm-12:04 am

1 stop3h 46m

Lexington Blue Grass

Fri 12/11

10:40 am-1:30 pm

1 stop3h 50m

$329

St. LouisLexington

STL Lambert-St Louis - LEX Lexington Blue Grass

STLLEX

Lambert-St Louis

Sat 12/19

6:00 am-10:46 am

1 stop3h 46m

Lexington Blue Grass

Sun 12/20

5:00 am-10:19 am

1 stop6h 19m

$329

St. LouisLexington

STL Lambert-St Louis - LEX Lexington Blue Grass

STLLEX

Lambert-St Louis

Sat 12/12

7:03 am-11:47 am

1 stop3h 44m

Lexington Blue Grass

Sun 12/13

5:59 pm-9:38 pm

1 stop4h 39m

$329

St. LouisLexington

STL Lambert-St Louis - LEX Lexington Blue Grass

STLLEX

Lambert-St Louis

Fri 12/18

6:00 am-11:47 am

1 stop4h 47m

Lexington Blue Grass

Sat 12/19

5:53 pm-10:04 pm

1 stop5h 11m

$329

St. LouisLexington

STL Lambert-St Louis - LEX Lexington Blue Grass

STLLEX

Lambert-St Louis

Sat 12/12

1:43 pm-11:15 pm

2 stops8h 32m

Lexington Blue Grass

Sun 12/13

8:08 pm-11:59 pm

1 stop4h 51m

$334

St. LouisLouisville

STL Lambert-St Louis - SDF Louisville Intl

STLSDF

Lambert-St Louis

Thu 12/10

6:20 am-10:30 am

1 stop3h 10m

Louisville Intl

Sun 12/13

3:45 pm-11:05 pm

1 stop8h 20m

$343

St. LouisLexington

STL Lambert-St Louis - LEX Lexington Blue Grass

STLLEX

Lambert-St Louis

Tue 11/24

5:00 am-1:13 pm

1 stop7h 13m

Lexington Blue Grass

Sat 11/28

11:05 am-4:52 pm

1 stop6h 47m

$359

St. LouisLouisville

STL Lambert-St Louis - SDF Louisville Intl

STLSDF

Lambert-St Louis

Mon 12/14

5:40 pm-11:49 pm

1 stop5h 09m

Louisville Intl

Wed 12/16

1:59 pm-7:26 pm

1 stop6h 27m

$405

St. LouisLexington

STL Lambert-St Louis - LEX Lexington Blue Grass

STLLEX

Lambert-St Louis

Wed 12/9

5:25 am-1:02 pm

1 stop6h 37m

Lexington Blue Grass

Sun 12/13

7:00 am-12:22 pm

1 stop6h 22m

$419

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

What is the cheapest month to fly to Kentucky?

If you’re not able to fly to Kentucky in August, then February is your next best option. Flight prices from St. Louis to Kentucky during February average around $0.

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

Best Price Found	$157
Fastest flight time	1h 05m
Direct flights	None

The best one-way flight to Kentucky from St. Louis in the past 72 hours is $157. The best round-trip flight deal from St. Louis to Kentucky found on momondo in the last 72 hours is $329.

The fastest flight from St. Louis to Kentucky takes 1h 05m

There are no direct flights from St. Louis to Kentucky. There are no popular flight routes from St. Louis to Kentucky.

Search flight deals

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?
As of November 2026, there are 2 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
United Airlines	PriceFrom $279	Free Cancellation	Rating 7.3 10,476 reviews		Search United Airlines flights
Delta	PriceFrom $308	Free Cancellation	Rating 7.8 8,700 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.