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$110+ 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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — STL
Jan 13 — Jan 201
Mon 1/13
Mon 1/20
1 adult, Economy
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Cheap flight deals from Kentucky to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Kentucky (USKY) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 8, 2025.

Round-trip from

$111
(Flightnetwork)
From Kentucky to Lambert-St Louis
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Find 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 8, 2025.

This Flightnetwork deal was found by Cheapflights users on 1/7. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/235:30 pmCVG - STL
1 stop7h 01mFrontier
Wed 1/295:05 pmSTL - CVG
1 stop16h 25mFrontier
Deal found 1/7$111
This Gotogate deal was found by Cheapflights users on 1/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/282:35 pmBNA - STL
1 stop4h 06mSouthern / Mokulele
Fri 1/319:50 amSTL - BNA
1 stop4h 05mSouthern / Mokulele
Deal found 1/8$153
This Mytrip deal was found by Cheapflights users on 1/8. 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.
Fri 2/75:43 pmBNA - STL
1 stop15h 33mMultiple Airlines
Fri 2/149:50 amSTL - BNA
1 stop4h 05mMultiple Airlines
Deal found 1/8$192
This CheapOair deal was found by Cheapflights users on 1/7. 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 2/37:25 pmSDF - STL
1 stop20h 18mSpirit Airlines
Sun 2/94:28 pmSTL - SDF
1 stop25h 02mSpirit Airlines
Deal found 1/7$215
This Mytrip deal was found by Cheapflights users on 1/7. 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.
Sun 1/194:19 pmTYS - STL
1 stop17h 57mFrontier
Sat 1/257:09 pmSTL - TYS
1 stop19h 10mFrontier
Deal found 1/7$220
This Delta deal was found by Cheapflights users on 1/8. 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 2/197:17 pmTYS - STL
1 stop5h 19mDelta
Wed 2/264:40 pmSTL - TYS
1 stop6h 07mDelta
Deal found 1/8$229
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Fri 2/217:58 pmTYS - STL
1 stop4h 58mAmerican Airlines
Sat 2/223:40 pmSTL - TYS
2 stops7h 17mAmerican Airlines
Deal found 1/6$234
This KAYAK deal was found by Cheapflights users on 1/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/282:00 pmCVG - STL
1 stop3h 37mDelta
Wed 1/296:43 amSTL - CVG
1 stop6h 06mDelta
Deal found 1/7$239
This United Airlines deal was found by Cheapflights users on 1/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/197:15 amCVG - STL
1 stop5h 57mUnited Airlines
Thu 2/2010:18 amSTL - CVG
1 stop5h 27mUnited Airlines
Deal found 1/8$250
This KAYAK deal was found by Cheapflights users on 1/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/281:40 pmCVG - STL
2 stops19h 25mSouthwest
Wed 1/298:20 pmSTL - CVG
2 stops15h 45mSouthwest
Deal found 1/7$251
This Southwest deal was found by Cheapflights users on 1/8. 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.
Sat 2/13:25 pmBNA - STL
Nonstop1h 15mSouthwest
Thu 2/61:55 pmSTL - BNA
Nonstop1h 10mSouthwest
Deal found 1/8$265
This Delta deal was found by Cheapflights users on 1/8. 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 2/267:15 amBNA - STL
1 stop4h 31mDelta
Fri 2/287:15 amSTL - BNA
1 stop4h 06mDelta
Deal found 1/8$277

Find flights from Kentucky to St. Louis within your budget

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 8, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 1/22

11:35 am-11:31 pm

1 stop12h 56m

Lambert-St Louis

Fri 1/24

5:05 pm-11:44 pm

1 stop5h 39m

$120

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Tue 1/28

2:35 pm-6:41 pm

1 stop4h 06m

Lambert-St Louis

Fri 1/31

9:50 am-1:55 pm

1 stop4h 05m

$153

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Fri 2/7

5:43 pm-9:16 am

1 stop15h 33m

Lambert-St Louis

Fri 2/14

9:50 am-1:55 pm

1 stop4h 05m

$192

KnoxvilleSt. Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Sat 2/1

8:05 pm-11:46 pm

1 stop4h 41m

Lambert-St Louis

Fri 2/7

11:38 am-5:27 pm

1 stop4h 49m

$214

LouisvilleSt. Louis

SDF - STL

SDFSTL

Louisville Intl

Mon 2/3

7:25 pm-2:43 pm

1 stop20h 18m

Lambert-St Louis

Sun 2/9

4:28 pm-6:30 pm

1 stop25h 02m

$215

KnoxvilleSt. Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Wed 2/19

7:17 pm-11:36 pm

1 stop5h 19m

Lambert-St Louis

Wed 2/26

4:40 pm-11:47 pm

1 stop6h 07m

$229

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 1/24

8:09 pm-11:46 pm

1 stop4h 37m

Lambert-St Louis

Sun 1/26

6:00 pm-11:05 pm

1 stop4h 05m

$239

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 2/19

7:15 am-12:12 pm

1 stop5h 57m

Lambert-St Louis

Thu 2/20

10:18 am-4:45 pm

1 stop5h 27m

$250

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Tue 2/18

9:15 pm-10:30 pm

Nonstop1h 15m

Lambert-St Louis

Sat 2/22

7:50 am-9:00 am

Nonstop1h 10m

$255

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Wed 2/26

7:15 am-11:46 am

1 stop4h 31m

Lambert-St Louis

Fri 2/28

7:15 am-11:21 am

1 stop4h 06m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 36 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.

Travel insights for flights from Kentucky to St. Louis

Get recent, data-driven insights about flights from Kentucky to St. Louis including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Kentucky to St. Louis (average of $311). Flying from Kentucky to St. Louis in March is currently the most expensive (average of $356). 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 KY to STL?

Find hourly flight availability from Kentucky to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 8, 2025.

When flying from Kentucky to St. Louis, 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 St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated January 8, 2025.
Read reviews from past customers who have flown Frontier, American Airlines and Spirit Airlines from Kentucky to St. Louis. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,648 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,648 reviews
Southwest
8.1
Very good
4,648 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,499 reviews
Southwest
8.1
Very good
4,648 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,938 reviews
Southwest
8.1
Very good
4,648 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,648 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.

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

    One-way options have recently been found by users for as low as $122 on American Airlines. Other airlines that offer cheap prices include Delta from $123 and Southern / Mokulele from $124 one-way.

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

    Most travelers choose Nashville Intl - Lambert-St Louis, Knoxville McGhee Tyson - Lambert-St Louis or Cincinnati Cinci./N. Kentucky - 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.

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

    Currently, August is the cheapest month in which you can book a flight from Kentucky to St. Louis (average of $311). Flying from Kentucky to St. Louis in March is currently the most expensive (average of $356). 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.

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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 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$192Average$326FlexibilityNo cancel feeOn-time71%
DeltaCheapest$194Average$286FlexibilityNo cancel feeOn-timeN/A
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