HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kentucky

$82+ Cheap flights from St. Louis (STL) to Kentucky

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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Kentucky with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Kentucky

Keep the following information in mind while searching for St. Louis to Kentucky flight deals. Data was last updated April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$168
(Expedia)

One-way from

$82
(Trip.com)

Popular in

November

Cheapest in

September

Average price

$351
Provider with most accurate pricing for Lambert-St Louis-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Louisville Intl flights.
Search Deals
From Lambert-St Louis to Kentucky
Search Deals
One-way flight from Lambert-St Louis to Kentucky
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from St. Louis to Kentucky

Cheapest flights from St. Louis to Kentucky
Explore the most affordable flight options available from St. Louis to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/169:50 amSTL - BNA
1 stop4h 05mSouthern / Mokulele
Sun 5/182:35 pmBNA - STL
1 stop4h 06mSouthern / Mokulele
Deal found 4/29$168
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:55 amSTL - BNA
Nonstop1h 10mSouthwest
Wed 10/158:05 amBNA - STL
Nonstop1h 20mSouthwest
Deal found 4/29$183
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1512:41 pmSTL - BNA
1 stop5h 56mAmerican Airlines
Thu 7/179:00 amBNA - STL
1 stop6h 38mAmerican Airlines
Deal found 4/29$189
This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/145:45 pmSTL - CVG
1 stop16h 51mFrontier
Sun 5/185:45 amCVG - STL
1 stop19h 21mFrontier
Deal found 4/29$190
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/81:30 pmSTL - BNA
1 stop6h 09mDelta
Tue 10/146:25 amBNA - STL
1 stop6h 00mDelta
Deal found 4/29$193
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/256:00 amSTL - TYS
1 stop6h 19mDelta
Fri 5/302:04 pmTYS - STL
1 stop4h 57mDelta
Deal found 4/28$199
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/286:00 amSTL - LEX
1 stop5h 19mDelta
Thu 5/291:05 pmLEX - STL
1 stop5h 56mDelta
Deal found 4/28$199
This CheapOair deal was found by Cheapflights users on 4/28. 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.
Wed 5/148:15 pmSTL - BNA
1 stop22h 37mFrontier
Fri 5/167:52 pmBNA - STL
1 stop14h 07mFrontier
Deal found 4/28$201
This Orbitz deal was found by Cheapflights users on 4/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/109:50 amSTL - BNA
1 stop4h 05mMultiple Airlines
Sun 5/117:52 pmBNA - STL
1 stop13h 17mMultiple Airlines
Deal found 4/28$210
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/37:05 amSTL - CVG
1 stop4h 39mDelta
Tue 6/105:45 amCVG - STL
1 stop4h 58mDelta
Deal found 4/29$229
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/312:50 pmSTL - CVG
2 stops8h 45mSouthwest
Tue 6/105:40 amCVG - STL
1 stop6h 10mSouthwest
Deal found 4/29$234
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/131:59 pmSTL - LEX
1 stop7h 01mAmerican Airlines
Sat 5/176:20 amLEX - STL
1 stop6h 57mAmerican Airlines
Deal found 4/28$239

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
Use the filters below to find and compare flights from St. Louis to Kentucky that are best for you.

Fly from

St. Louis

Fly to

Kentucky

Route

Depart

Return

Price

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Fri 5/16

9:50 am-1:55 pm

1 stop4h 05m

Nashville Intl

Sun 5/18

2:35 pm-6:41 pm

1 stop4h 06m

$168

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Wed 5/21

12:25 pm-1:35 pm

Nonstop1h 10m

Nashville Intl

Tue 5/27

7:50 am-9:10 am

Nonstop1h 20m

$183

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Tue 7/15

12:41 pm-6:37 pm

1 stop5h 56m

Nashville Intl

Thu 7/17

9:00 am-3:38 pm

1 stop6h 38m

$189

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 5/14

5:45 pm-11:36 am

1 stop16h 51m

Cincinnati Cinci./N. Kentucky

Sun 5/18

5:45 am-12:06 am

1 stop19h 21m

$190

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Sun 5/25

6:00 am-1:19 pm

1 stop6h 19m

Knoxville McGhee Tyson

Fri 5/30

2:04 pm-6:01 pm

1 stop4h 57m

$199

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 5/28

6:00 am-12:19 pm

1 stop5h 19m

Lexington Blue Grass

Thu 5/29

1:05 pm-6:01 pm

1 stop5h 56m

$199

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 6/12

9:50 am-1:55 pm

1 stop4h 05m

Nashville Intl

Sun 6/15

6:20 am-9:12 am

1 stop26h 52m

$201

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Fri 7/4

7:00 am-11:28 am

1 stop4h 28m

Nashville Intl

Mon 7/7

6:15 am-9:41 am

1 stop3h 26m

$225

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Thu 6/12

6:00 am-1:22 pm

1 stop6h 22m

Knoxville McGhee Tyson

Thu 6/19

7:53 pm-11:59 pm

1 stop5h 06m

$229

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 6/3

7:05 am-12:44 pm

1 stop4h 39m

Cincinnati Cinci./N. Kentucky

Tue 6/10

5:45 am-9:43 am

1 stop4h 58m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 49 results
1
2
3
...
5

Best time to book a flight from St. Louis to Kentucky

Have a flexible travel schedule? Discover the best time to fly to Kentucky from St. Louis 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 St. Louis to Kentucky

What is the cheapest month to book a flight from St. Louis to Kentucky?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Kentucky (average of $299). Flying from St. Louis to Kentucky in April is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to KY?

Find hourly flight availability from St. Louis to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from St. Louis to Kentucky, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Kentucky by month

Plan your trip to Kentucky by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kentucky ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Kentucky when rainfall is around 3.1 in.

Temperature in Kentucky by month

Plan your trip to Kentucky by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kentucky, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Kentucky

Get insights into the airlines that provide service to Kentucky. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kentucky. Reviews last updated April 29, 2025.
To help decide which airline to fly from St. Louis to Kentucky, see what other customers have to say about Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,936 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Kentucky. 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 from for flights from St. Louis to Kentucky?

    For a flight from St. Louis to Kentucky, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • What are the cheapest airlines to fly from St. Louis to Kentucky one-way?

    $82 is the cheapest one-way deal found within the past few days, from Southern / Mokulele. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $88 and $92, respectively.

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

    When deciding which route to take from St. Louis to Kentucky consider Lambert-St Louis - Nashville Intl, Lambert-St Louis - Knoxville McGhee Tyson or Lambert-St Louis - Cincinnati Cinci./N. Kentucky as they are the most popular.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from St. Louis to Kentucky?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Kentucky (average of $299). Flying from St. Louis to Kentucky in April is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Kentucky

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Seattle flights
Kansas City to Seattle flights
St. Louis to Las Vegas flights
Kansas City to Denver flights
Kansas City to Las Vegas flights
St. Louis to Denver flights
Kansas City to Newark flights
Kansas City to O'Hare Intl flights
St. Louis to Newark flights
St. Louis to Orlando flights
Kansas City to John F Kennedy Intl flights
St. Louis to Miami flights
St. Louis to LaGuardia flights
St. Louis to Dallas/Fort Worth flights
Kansas City to Miami flights
St. Louis to John F Kennedy Intl flights
Kansas City to Orlando flights
Kansas City to LaGuardia flights
Kansas City to San Francisco flights
St. Louis to Los Angeles flights
Kansas City to Portland flights
Kansas City to Boston flights
St. Louis to Boston flights
Kansas City to Hobby flights
St. Louis to Dulles Intl flights
Kansas City to Dallas/Fort Worth flights
St. Louis to O'Hare Intl flights
Kansas City to George Bush Intcntl flights
St. Louis to Hobby flights
Kansas City to Sky Harbor Intl flights
Kansas City to Atlanta flights
Kansas City to Los Angeles flights
St. Louis to Sky Harbor Intl flights
Kansas City to Tampa flights
Kansas City to Fort Lauderdale flights
St. Louis to George Bush Intcntl flights
St. Louis to Minneapolis flights
St. Louis to San Francisco flights
St. Louis to Salt Lake City flights
St. Louis to Baltimore flights
Kansas City to Midway flights
St. Louis to Philadelphia flights
St. Louis to Portland flights
St. Louis to Tampa flights
St. Louis to San Diego flights
Kansas City to Dulles Intl flights
Kansas City to San Diego flights
Kansas City to Minneapolis flights
Kansas City to Philadelphia flights
St. Louis to Honolulu flights

Top 4 airlines flying from St. Louis to Kentucky

Discover the top 4 airlines that operate flights from St. Louis to Kentucky. 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$214Average$288FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$216Average$544FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$220Average$332FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$335FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.