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Lexington

$211+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LEX
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$229
(Delta)

One-way from

$211
(Delta)

Popular in

April

Cheapest in

August

Average price

$273
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. 23% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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.
Tue 8/265:11 pmSTL - LEX
1 stop5h 39mDelta
Tue 9/23:40 pmLEX - STL
1 stop4h 27mDelta
Deal found 7/28$229
This American Airlines deal was found by Cheapflights users on 7/28. 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 8/267:23 amSTL - LEX
2 stops8h 19mAmerican Airlines
Tue 9/25:15 pmLEX - STL
1 stop6h 50mAmerican Airlines
Deal found 7/28$234
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:30 pmSTL - LEX
1 stop5h 20mUnited Airlines
Sun 8/177:00 amLEX - STL
1 stop6h 46mUnited Airlines
Deal found 7/29$349

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 July 30, 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

Tue 8/26

5:11 pm-11:50 pm

1 stop5h 39m

Lexington Blue Grass

Tue 9/2

3:40 pm-7:07 pm

1 stop4h 27m

$229

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Tue 8/26

7:23 am-4:42 pm

2 stops8h 19m

Lexington Blue Grass

Tue 9/2

5:15 pm-11:05 pm

1 stop6h 50m

$234

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 8/15

5:30 pm-11:50 pm

1 stop5h 20m

Lexington Blue Grass

Sun 8/17

7:00 am-12:46 pm

1 stop6h 46m

$349

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 9/6

10:15 am-2:55 pm

1 stop3h 40m

$211

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 9/6

7:23 am-6:44 pm

2 stops10h 21m

$233

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Mon 8/4

10:47 am-11:23 am

3 stops23h 36m

$267

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sun 9/7

5:15 am-11:37 pm

2 stops17h 22m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 30, 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 July 30, 2025.
Read reviews from past customers who have flown Delta, United Airlines, 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
7,980 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

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!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

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
7,980 reviews

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

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.

  • 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 $229 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $234 and $349 round-trip. Delta is currently priced 27% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $211. American Airlines flights start at $233 while deals on United Airlines start at $633 one-way.

  • 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
Danville
Berea

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Top 3 airlines flying from St. Louis to Lexington

Discover the top 3 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$288FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$323FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$335FlexibilityNo cancel feeOn-time69%

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