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St. Louis

$64+ Cheap flights from Kentucky to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — STL
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Kentucky to St. Louis

Cheapest flights from Kentucky to St. Louis
Explore the most affordable flight options available from Kentucky to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Trip.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/52:35 pm
BNA
-
STL
1 stop4h 01m
Southern / Mokulele
Sat 2/79:50 am
STL
-
BNA
1 stop3h 58m
Southern / Mokulele
Deal found 1/26$155
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:50 am
BNA
-
STL
1 stop15h 37m
Multiple Airlines
Sun 3/110:11 pm
STL
-
BNA
1 stop30h 57m
Multiple Airlines
Deal found 1/26$160
This Mytrip deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/122:35 pm
BNA
-
STL
1 stop4h 01m
Southern / Mokulele
Thu 3/199:50 am
STL
-
BNA
1 stop3h 58m
Southern / Mokulele
Deal found 1/26$166
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/292:35 pm
BNA
-
STL
1 stop4h 01m
Southern / Mokulele
Sat 1/319:50 am
STL
-
BNA
1 stop3h 58m
Southern / Mokulele
Deal found 1/26$169
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/62:35 pm
BNA
-
STL
1 stop4h 01m
Southern / Mokulele
Sat 3/79:50 am
STL
-
BNA
1 stop3h 58m
Southern / Mokulele
Deal found 1/25$171
This Southern / Mokulele deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/32:35 pm
BNA
-
STL
1 stop4h 01m
Southern / Mokulele
Sat 2/79:50 am
STL
-
BNA
1 stop3h 58m
Southern / Mokulele
Deal found 1/23$172
This CheapOair deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/112:35 pm
BNA
-
STL
1 stop4h 01m
Southern / Mokulele
Sat 5/169:50 am
STL
-
BNA
1 stop3h 58m
Southern / Mokulele
Deal found 1/24$173
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/52:35 pm
BNA
-
STL
1 stop4h 01m
Multiple Airlines
Mon 2/98:22 pm
STL
-
BNA
2 stops23h 21m
Multiple Airlines
Deal found 1/25$177
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/222:35 pm
BNA
-
STL
1 stop4h 01m
Multiple Airlines
Sun 3/110:11 pm
STL
-
BNA
1 stop30h 57m
Multiple Airlines
Deal found 1/25$184
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/52:35 pm
BNA
-
STL
1 stop4h 01m
Multiple Airlines
Sat 2/78:22 pm
STL
-
BNA
2 stops35h 03m
Multiple Airlines
Deal found 1/26$189
This Kiwi.com deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/272:35 pm
BNA
-
STL
1 stop4h 01m
Southern / Mokulele
Tue 2/39:50 am
STL
-
BNA
1 stop3h 58m
Southern / Mokulele
Deal found 1/25$191
This Travelocity deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:20 pm
CVG
-
STL
1 stop6h 59m
Frontier
Sun 4/194:55 pm
STL
-
CVG
1 stop18h 00m
Frontier
Deal found 1/23$195

Find flight deals from Kentucky to St. Louis

Keep the following information in mind while searching for Kentucky to St. Louis flight deals. Data was last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$155
(Trip.com)

One-way from

$64
(Expedia)
Provider with most accurate pricing for Louisville Intl-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Lambert-St Louis flights.
Search Deals
From Kentucky to Lambert-St Louis
Search Deals
One-way flight from Kentucky to Lambert-St Louis
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kentucky to St. Louis 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, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from Kentucky to St. Louis that are best for you.

Fly from

Kentucky

Fly to

St. Louis

Route

Depart

Return

Price

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Fri 3/6

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Sat 3/7

9:50 am-1:48 pm

1 stop3h 58m

$155

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Thu 2/5

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Sat 2/7

9:50 am-1:48 pm

1 stop3h 58m

$155

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Thu 2/5

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Mon 2/9

9:50 am-1:48 pm

1 stop3h 58m

$169

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Mon 3/16

2:35 pm-6:41 pm

1 stop4h 06m

Lambert-St Louis

Tue 3/17

9:50 am-1:55 pm

1 stop4h 05m

$169

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Mon 5/11

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Sat 5/16

9:50 am-1:48 pm

1 stop3h 58m

$173

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Sun 2/22

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Sun 3/1

10:11 pm-5:08 am

1 stop30h 57m

$184

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Thu 2/5

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Sat 2/7

8:22 pm-7:25 am

2 stops35h 03m

$189

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 4/16

5:20 pm-11:19 pm

1 stop6h 59m

Lambert-St Louis

Sun 4/19

4:55 pm-11:55 am

1 stop18h 00m

$195

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 2/9

5:39 pm-10:27 pm

1 stop29h 48m

Lambert-St Louis

Fri 2/13

8:20 pm-11:33 pm

1 stop26h 13m

$219

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Sat 2/21

8:15 am-12:42 pm

1 stop4h 27m

Lambert-St Louis

Mon 2/23

1:34 pm-5:33 pm

1 stop3h 59m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 60 results
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Best time to book a flight from Kentucky to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kentucky with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Kentucky to St. Louis
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Kentucky to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Kentucky?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Kentucky. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How long is the flight from Kentucky to St. Louis?

    A quick flight from Kentucky to St. Louis can take about 4h 01m. Southern / Mokulele provides one of the quickest options available for as low as $155. The distance between Kentucky and St. Louis is about 272 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Kentucky to St. Louis?

    Most travelers choose Nashville Intl - Lambert-St Louis, Cincinnati Cinci./N. Kentucky - Lambert-St Louis or Knoxville McGhee Tyson - Lambert-St Louis when deciding on the best route from Kentucky to St. Louis.

  • Can I find deals for flights from Kentucky to St. Louis that include hotel bookings?

    Yes. In addition to deals on Kentucky to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kentucky to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kentucky to St. Louis.

  • Can I find deals for business class flights from Kentucky to St. Louis?

    Yes. Cheapflights offers flight deals from Kentucky to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Kentucky to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Kentucky to St. Louis

Discover the top 2 airlines that operate flights from Kentucky to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$152Average$288FlexibilityNo cancel feeOn-time71%
DeltaCheapest$204Average$374FlexibilityNo cancel feeOn-timeN/A

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