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St. Louis

$131+ Cheap flights from Lexington to St. Louis (LEX - 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Lexington to St. Louis

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

Round-trip from

$229
(United Airlines)

One-way from

$131
(Trip.com)

Popular in

March

Cheapest in

December

Average price

$292
From Lexington Blue Grass to Lambert-St Louis
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One-way flight from Lexington Blue Grass to Lambert-St Louis
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Highest demand for flights based on searches. 19% potential increase in price ($77 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($21 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 Lexington to St. Louis

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

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.
Wed 10/82:10 pmLEX - STL
1 stop5h 07mUnited Airlines
Wed 10/158:00 amSTL - LEX
1 stop6h 48mUnited Airlines
Deal found 9/10$229
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.
Tue 11/186:03 amLEX - STL
2 stops9h 59mAmerican Airlines
Sun 11/236:00 amSTL - LEX
1 stop3h 37mAmerican Airlines
Deal found 9/11$234
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.
Fri 9/125:48 pmLEX - STL
1 stop4h 44mUnited Airlines
Wed 10/159:20 amSTL - LEX
1 stop5h 28mUnited Airlines
Deal found 9/10$259
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.
Fri 10/246:39 pmLEX - STL
1 stop5h 39mAmerican Airlines
Tue 10/286:00 amSTL - LEX
1 stop3h 42mAmerican Airlines
Deal found 9/11$288
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:53 pmLEX - STL
1 stop4h 31mDelta
Mon 9/156:42 pmSTL - LEX
1 stop4h 05mDelta
Deal found 9/10$289
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:33 pmLEX - STL
1 stop14h 10mMultiple Airlines
Tue 10/288:40 pmSTL - LEX
2 stops47h 49mMultiple Airlines
Deal found 9/11$291
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/119:57 amLEX - STL
2 stops24h 25mMultiple Airlines
Sat 10/187:15 pmSTL - LEX
1 stop22h 20mMultiple Airlines
Deal found 9/11$293
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.
Fri 9/267:05 amLEX - STL
1 stop6h 23mUnited Airlines
Tue 9/303:23 pmSTL - LEX
1 stop4h 38mUnited 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.
Wed 9/245:48 pmLEX - STL
1 stop5h 47mUnited Airlines
Wed 10/19:20 amSTL - LEX
1 stop5h 28mUnited Airlines
Deal found 9/11$314
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:35 pmLEX - STL
2 stops16h 02mMultiple Airlines
Thu 10/1610:57 amSTL - LEX
1 stop6h 38mMultiple Airlines
Deal found 9/11$320
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:59 pmLEX - STL
1 stop4h 42mDelta
Fri 10/175:15 pmSTL - LEX
1 stop5h 49mDelta
Deal found 9/10$348
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/83:38 pmLEX - STL
1 stop26h 32mMultiple Airlines
Wed 10/157:52 pmSTL - LEX
2 stops24h 51mMultiple Airlines
Deal found 9/10$369

Cheapflights Fare Finder

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

Fly from

Lexington

Fly to

St. Louis

Route

Depart

Return

Price

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Wed 10/8

7:19 pm-11:54 pm

1 stop5h 35m

Lambert-St Louis

Wed 10/15

6:00 am-10:42 am

1 stop3h 42m

$229

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Wed 10/8

2:10 pm-6:17 pm

1 stop5h 07m

Lambert-St Louis

Wed 10/15

8:00 am-3:48 pm

1 stop6h 48m

$229

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 10/31

6:00 am-9:15 am

1 stop4h 15m

Lambert-St Louis

Mon 11/3

5:15 pm-12:05 am

1 stop5h 50m

$229

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 10/23

8:02 pm-11:58 pm

1 stop4h 56m

Lambert-St Louis

Tue 10/28

6:00 am-10:42 am

1 stop3h 42m

$229

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 10/11

7:33 pm-10:35 pm

1 stop4h 02m

Lambert-St Louis

Sat 10/18

9:20 am-5:20 pm

1 stop7h 00m

$229

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Wed 11/19

6:03 am-3:02 pm

2 stops9h 59m

Lambert-St Louis

Sun 11/23

3:43 pm-11:21 pm

1 stop6h 38m

$234

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 10/24

6:39 pm-11:18 pm

1 stop5h 39m

Lambert-St Louis

Tue 10/28

6:00 am-10:42 am

1 stop3h 42m

$288

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 10/23

10:33 pm-11:43 am

1 stop14h 10m

Lambert-St Louis

Tue 10/28

8:40 pm-9:29 pm

2 stops47h 49m

$291

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 9/26

7:05 am-12:28 pm

1 stop6h 23m

Lambert-St Louis

Tue 9/30

3:23 pm-9:01 pm

1 stop4h 38m

$299

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Wed 9/24

5:48 pm-10:35 pm

1 stop5h 47m

Lambert-St Louis

Wed 10/1

9:20 am-3:48 pm

1 stop5h 28m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 15 results
1
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Best time to book a flight from Lexington to St. Louis

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

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

Currently, August is the cheapest month in which you can book a flight from Lexington to St. Louis (average of $311). Flying from Lexington 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 LEX to STL?

Find hourly flight availability from Lexington 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 September 11, 2025.

It’s typically best to fly out from Lexington to St. Louis in the evening. Doing so could potentially save you 4% on the flight price compared to flying in the morning, which is usually more expensive.

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 September 11, 2025.
Peruse reviews from past customers who have flown with Delta and American Airlines from Lexington to St. Louis to help guide your decision. You can also see how each airline stacks up 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 Lexington to St. Louis. 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 Lexington to St. Louis?

    Departing from Lexington to St. Louis will take you 5h 07m. The distance from Lexington to St. Louis is about 316 mi. This flight may include one or multiple stops.

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

    According to our current data, Delta ($228), and American Airlines ($228) offers the cheapest pricing from Lexington to St. Louis. Delta is 29% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Lexington to St. Louis (average of $311). Flying from Lexington 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 2 airlines flying from Lexington to St. Louis

Discover the top 2 airlines that operate flights from Lexington 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$268FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$288FlexibilityNo cancel feeOn-time71%

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