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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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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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 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$165
(Mytrip)

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.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Louisville Intl flights.
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From Lambert-St Louis to Kentucky
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One-way flight from Lambert-St Louis to Kentucky
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Highest demand for flights based on searches. 16% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 17, 2025.

This Mytrip deal was found by Cheapflights users on 4/17. 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 5/85:45 pmSTL - CVG
1 stop6h 14mFrontier
Sun 5/1112:57 pmCVG - STL
1 stop12h 09mFrontier
Deal found 4/17$165
This Expedia deal was found by Cheapflights users on 4/17. 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.
Thu 5/159:50 amSTL - BNA
1 stop4h 05mSouthern / Mokulele
Thu 5/222:35 pmBNA - STL
1 stop4h 06mSouthern / Mokulele
Deal found 4/17$168
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/207:30 pmSTL - SDF
1 stop14h 28mAmerican Airlines
Thu 5/225:45 amSDF - STL
1 stop8h 22mAmerican Airlines
Deal found 4/16$183
This Southwest deal was found by Cheapflights users on 4/17. 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.
Mon 5/127:45 amSTL - BNA
Nonstop1h 10mSouthwest
Tue 5/138:55 pmBNA - STL
Nonstop1h 15mSouthwest
Deal found 4/17$194
This CheapOair deal was found by Cheapflights users on 4/17. 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.
Tue 5/279:50 amSTL - BNA
1 stop4h 05mMultiple Airlines
Mon 6/210:01 amBNA - STL
1 stop13h 48mMultiple Airlines
Deal found 4/17$199
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Sun 5/255:19 amSTL - TYS
1 stop5h 22mAmerican Airlines
Fri 5/306:00 amTYS - STL
1 stop4h 42mAmerican Airlines
Deal found 4/16$199
This CheapOair deal was found by Cheapflights users on 4/16. 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.
Fri 5/307:24 pmSTL - BNA
1 stop20h 15mFrontier
Mon 6/210:01 amBNA - STL
1 stop13h 48mFrontier
Deal found 4/16$211
This Delta deal was found by Cheapflights users on 4/17. 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.
Sat 7/196:00 amSTL - BNA
1 stop3h 49mDelta
Sat 7/2610:55 amBNA - STL
1 stop3h 40mDelta
Deal found 4/17$225
This Delta deal was found by Cheapflights users on 4/16. 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 5/77:05 amSTL - TYS
1 stop3h 18mDelta
Wed 5/147:50 amTYS - STL
1 stop6h 29mDelta
Deal found 4/16$229
This Delta deal was found by Cheapflights users on 4/17. 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 7/235:40 pmSTL - LEX
1 stop5h 16mDelta
Sat 7/267:30 amLEX - STL
1 stop6h 46mDelta
Deal found 4/17$229
This American Airlines deal was found by Cheapflights users on 4/17. 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 8/512:41 pmSTL - LEX
1 stop6h 04mAmerican Airlines
Sat 8/96:22 pmLEX - STL
2 stops6h 27mAmerican Airlines
Deal found 4/17$234
This Delta deal was found by Cheapflights users on 4/16. 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.
Sat 5/246:05 pmSTL - SDF
1 stop4h 47mDelta
Sat 5/316:00 amSDF - STL
1 stop3h 56mDelta
Deal found 4/16$237

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 17, 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. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 5/8

5:45 pm-12:59 am

1 stop6h 14m

Cincinnati Cinci./N. Kentucky

Sun 5/11

12:57 pm-12:06 am

1 stop12h 09m

$165

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Thu 5/15

9:50 am-1:55 pm

1 stop4h 05m

Nashville Intl

Thu 5/22

2:35 pm-6:41 pm

1 stop4h 06m

$168

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 5/20

7:30 pm-10:58 am

1 stop14h 28m

Louisville Intl

Thu 5/22

5:45 am-1:07 pm

1 stop8h 22m

$183

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Mon 5/12

7:45 am-8:55 am

Nonstop1h 10m

Nashville Intl

Tue 5/13

8:55 pm-10:10 pm

Nonstop1h 15m

$194

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Tue 5/27

9:50 am-1:55 pm

1 stop4h 05m

Nashville Intl

Mon 6/2

10:01 am-11:49 pm

1 stop13h 48m

$199

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Sun 5/25

5:19 am-11:41 am

1 stop5h 22m

Knoxville McGhee Tyson

Fri 5/30

6:00 am-9:42 am

1 stop4h 42m

$199

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Fri 5/30

7:24 pm-3:39 pm

1 stop20h 15m

Nashville Intl

Mon 6/2

10:01 am-11:49 pm

1 stop13h 48m

$211

St. LouisNashville

STL - BNA

STLBNA

Lambert-St Louis

Sat 7/19

6:00 am-9:49 am

1 stop3h 49m

Nashville Intl

Sat 7/26

10:55 am-2:35 pm

1 stop3h 40m

$225

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Wed 5/7

7:05 am-11:23 am

1 stop3h 18m

Knoxville McGhee Tyson

Wed 5/14

7:50 am-1:19 pm

1 stop6h 29m

$229

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 7/23

5:40 pm-11:56 pm

1 stop5h 16m

Lexington Blue Grass

Sat 7/26

7:30 am-1:16 pm

1 stop6h 46m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 57 results
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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 17, 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 17, 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
4,280 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,916 reviews
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,667 reviews
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,280 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 - Louisville Intl 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

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Alternative routes for St. Louis to Kentucky

See prices for flight routes from nearby airports that may be better suited for you.
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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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$214Average$316FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$216Average$544FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$220Average$329FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$335FlexibilityNo cancel feeOn-time69%

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