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Lexington

$228+ Cheap flights from St. Louis to Lexington (STL - LEX)

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LEX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from St. Louis to Lexington

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Lexington (LEX). 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 September 11, 2025.

Round-trip from

$229
(Delta)

One-way from

$228
(American Airlines)

Popular in

April

Cheapest in

October

Average price

$416
From Lambert-St Louis to Lexington Blue Grass
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One-way flight from Lambert-St Louis to Lexington Blue Grass
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Highest demand for flights based on searches. 24% potential increase in price ($101 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Lexington

Cheapest flights from St. Louis to Lexington
Explore the most affordable flight options available from St. Louis to Lexington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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 10/13:36 pmSTL - LEX
1 stop5h 50mDelta
Wed 10/85:54 pmLEX - STL
1 stop3h 29mDelta
Deal found 9/11$229
This Delta deal was found by Cheapflights users on 9/9. 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 9/107:00 amSTL - LEX
1 stop4h 18mDelta
Wed 9/177:55 amLEX - STL
1 stop6h 25mDelta
Deal found 9/9$279
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 9/102:11 pmSTL - LEX
1 stop6h 03mAmerican Airlines
Wed 9/177:47 amLEX - STL
2 stops6h 44mAmerican Airlines
Deal found 9/9$284
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 9/136:29 amSTL - LEX
1 stop6h 36mAmerican Airlines
Sun 9/147:27 amLEX - STL
1 stop5h 25mAmerican Airlines
Deal found 9/11$289
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/258:00 amSTL - LEX
1 stop6h 48mUnited Airlines
Mon 9/296:01 pmLEX - STL
1 stop4h 36mUnited Airlines
Deal found 9/10$299
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 9/2612:25 pmSTL - LEX
1 stop3h 55mUnited Airlines
Tue 9/3010:37 amLEX - STL
1 stop4h 50mUnited Airlines
Deal found 9/11$303
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 10/97:16 amSTL - LEX
1 stop10h 14mAmerican Airlines
Mon 10/138:02 pmLEX - STL
1 stop4h 56mAmerican Airlines
Deal found 9/11$419
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/1512:25 pmSTL - LEX
1 stop3h 55mUnited Airlines
Sat 10/1810:37 amLEX - STL
2 stops12h 21mUnited Airlines
Deal found 9/11$441
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/196:00 amSTL - LEX
1 stop3h 42mAmerican Airlines
Mon 10/208:02 pmLEX - STL
1 stop4h 56mAmerican Airlines
Deal found 9/10$455
This American Airlines deal was found by Cheapflights users on 9/9. 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 9/126:10 amSTL - LEX
1 stop3h 29mAmerican Airlines
Sun 9/146:00 amLEX - STL
1 stop4h 26mAmerican Airlines
Deal found 9/9$545
This Delta deal was found by Cheapflights users on 9/11. 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 9/287:10 amSTL - LEX
1 stop4h 05mDelta
Mon 9/295:48 pmLEX - STL
1 stop3h 46mDelta
Deal found 9/11$559

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Lexington 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 September 11, 2025.
Use the filters below to find and compare flights from St. Louis to Lexington that are best for you.

Fly from

St. Louis

Fly to

Lexington

Route

Depart

Return

Price

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 10/15

6:00 am-10:42 am

1 stop3h 42m

Lexington Blue Grass

Sat 10/18

2:21 pm-8:53 pm

1 stop7h 32m

$229

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 2/21

10:00 am-2:59 pm

1 stop3h 59m

Lexington Blue Grass

Wed 2/25

1:30 pm-6:04 pm

1 stop5h 34m

$229

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 10/1

3:36 pm-10:26 pm

1 stop5h 50m

Lexington Blue Grass

Wed 10/8

5:54 pm-8:23 pm

1 stop3h 29m

$229

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sun 11/16

10:00 am-5:10 pm

1 stop6h 10m

Lexington Blue Grass

Sat 11/29

7:05 am-10:51 am

1 stop4h 46m

$289

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 9/25

8:00 am-3:48 pm

1 stop6h 48m

Lexington Blue Grass

Mon 9/29

6:01 pm-9:37 pm

1 stop4h 36m

$299

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 9/26

12:25 pm-5:20 pm

1 stop3h 55m

Lexington Blue Grass

Tue 9/30

10:37 am-2:27 pm

1 stop4h 50m

$303

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 10/9

7:16 am-6:30 pm

1 stop10h 14m

Lexington Blue Grass

Mon 10/13

8:02 pm-11:58 pm

1 stop4h 56m

$419

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 10/15

12:25 pm-5:20 pm

1 stop3h 55m

Lexington Blue Grass

Sat 10/18

10:37 am-9:58 pm

2 stops12h 21m

$441

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Tue 12/9

3:13 pm-8:39 pm

1 stop4h 26m

Lexington Blue Grass

Thu 12/11

10:07 am-3:40 pm

1 stop6h 33m

$455

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sun 9/28

7:10 am-12:15 pm

1 stop4h 05m

Lexington Blue Grass

Mon 9/29

5:48 pm-8:34 pm

1 stop3h 46m

$559

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

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

Have a flexible travel schedule? Discover the best time to fly to Lexington 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 Lexington

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Lexington (average of $303). Flying from St. Louis to Lexington in April is currently the most expensive (average of $390). 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 LEX?

Find hourly flight availability from St. Louis to Lexington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from St. Louis to Lexington at noon. By choosing this option you can save up to 2% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Lexington

Get insights into the airlines that provide service to Lexington. 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 Lexington. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Delta and American Airlines from St. Louis to Lexington. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

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

    Departing from St. Louis to Lexington will take you 3h 42m. St. Louis and Lexington are separated by a distance of 316 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to Lexington round-trip?

    Our cheapest airline available from St. Louis to Lexington is Delta. Our recent data shows that you can find tickets from as low as $228 on this airline. An additional option worth looking into is American Airlines, starting at $228. Delta is currently priced 26% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Lexington 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 Lexington?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Lexington (average of $303). Flying from St. Louis to Lexington in April is currently the most expensive (average of $390). 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

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Georgetown
Berea
Frankfort

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Top 2 airlines flying from St. Louis to Lexington

Discover the top 2 airlines that operate flights from St. Louis to Lexington. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$288FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$323FlexibilityNo cancel feeOn-time71%

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