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$169+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — STL
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$229
(American Airlines)

One-way from

$169
(Delta)

Popular in

March

Cheapest in

July

Average price

$248
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. 20% potential increase in price ($83 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 July 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 July 30, 2025.

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.
Wed 8/274:04 pmLEX - STL
1 stop5h 43mAmerican Airlines
Wed 9/33:59 pmSTL - LEX
1 stop7h 27mAmerican Airlines
Deal found 7/28$229
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/177:51 pmLEX - STL
1 stop4h 23mDelta
Sun 8/246:00 amSTL - LEX
1 stop5h 18mDelta
Deal found 7/29$234
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/305:44 pmLEX - STL
1 stop6h 01mUnited Airlines
Sun 8/35:30 pmSTL - LEX
1 stop5h 20mUnited Airlines
Deal found 7/28$418
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/25:07 pmLEX - STL
3 stops26h 34mMultiple Airlines
Mon 8/410:47 amSTL - LEX
3 stops23h 36mMultiple Airlines
Deal found 7/29$566

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 July 30, 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 8/27

4:04 pm-8:47 pm

1 stop5h 43m

Lambert-St Louis

Wed 9/3

3:59 pm-12:26 am

1 stop7h 27m

$229

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sun 8/17

7:51 pm-11:14 pm

1 stop4h 23m

Lambert-St Louis

Sun 8/24

6:00 am-12:18 pm

1 stop5h 18m

$234

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 9/12

5:48 pm-12:43 pm

2 stops19h 55m

Lambert-St Louis

Mon 9/15

5:30 pm-11:37 pm

1 stop5h 07m

$462

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 8/2

5:07 pm-6:41 pm

3 stops26h 34m

Lambert-St Louis

Mon 8/4

10:47 am-11:23 am

3 stops23h 36m

$566

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Tue 10/28

7:30 am-1:22 pm

1 stop6h 52m

$169

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Mon 10/27

7:05 am-9:54 pm

2 stops15h 49m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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

Crew

8.5

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Food

7.3

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.

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

    According to our current data, American Airlines ($229), Delta ($234), and United Airlines ($462) offers the cheapest pricing from Lexington to St. Louis. American Airlines is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $169. American Airlines flights start at $264 while deals on United Airlines start at $518 one-way.

  • 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$278FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$288FlexibilityNo cancel feeOn-time71%

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