$314+ Cheap flights from Lexington to St. Louis (LEX - STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — STL
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Find cheap flights from Lexington to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Lexington to St. Louis
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One-way
Cheapest flights from Lexington to St. LouisExplore 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, 2026.
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, 2026.
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.
Fri 11/136:54 pm -
1 stop4h 21m
Thu 11/196:00 am -
1 stop3h 53m
Deal found 9/10![American Airlines logo]()
$314
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:36 am -
1 stop6h 27m
Sat 9/265:18 pm -
1 stop5h 28m
Deal found 9/7![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:18 pm -
1 stop4h 24m
Sun 9/135:15 am -
1 stop4h 17m
Deal found 9/8![American Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:58 pm -
1 stop7h 02m
Sat 9/265:36 pm -
1 stop5h 19m
Deal found 9/7![United Airlines logo]()
$419
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.
Sun 12/205:47 pm -
1 stop4h 00m
Mon 12/215:13 pm -
1 stop6h 00m
Deal found 9/10![Delta logo]()
$527
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:50 am -
1 stop4h 23m
Mon 9/288:30 am -
2 stops10h 58m
Deal found 9/9![United Airlines logo]()
$720
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.
Tue 9/155:23 am -
1 stop5h 55m
Thu 9/1711:01 am -
1 stop5h 30m
Deal found 9/9![American Airlines logo]()
$773
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.
Sat 9/2610:11 am -
1 stop6h 32m
Wed 9/3012:20 pm -
2 stops10h 35m
Deal found 9/11![United Airlines logo]()
$811
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 11/135:30 am -
2 stops12h 16m
Thu 11/195:00 am -
1 stop4h 13m
Deal found 9/10![United Airlines logo]()
$986
Best flights from Lexington to St. LouisDiscover carefully curated flight deals from Lexington to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Lexington to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
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.
Fri 11/136:54 pm -
1 stop4h 21m
Thu 11/196:00 am -
1 stop3h 53m
Deal found 9/10![American Airlines logo]()
$314
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:50 am -
1 stop4h 23m
Mon 9/2811:35 am -
1 stop4h 36m
Deal found 9/9![United Airlines logo]()
$329
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 9/267:18 pm -
1 stop4h 24m
Wed 9/301:54 pm -
1 stop5h 56m
Deal found 9/11![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 2/611:00 am -
1 stop4h 28m
Tue 2/97:00 pm -
1 stop3h 56m
Deal found 9/8![United Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
2 stops8h 16m
Sat 9/261:54 pm -
1 stop5h 56m
Deal found 9/7![American Airlines logo]()
$423
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.
Sat 9/2610:11 am -
1 stop6h 32m
Wed 9/3012:20 pm -
2 stops10h 35m
Deal found 9/11![United Airlines logo]()
$811
Last-minute flights from Lexington to St. LouisDiscover last-minute flight deals from Lexington to St. Louis. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Lexington to St. Louis. Data last updated September 11, 2026 and is based on user searches.
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.
Tue 9/155:23 am -
1 stop5h 55m
Thu 9/1711:01 am -
1 stop5h 30m
Deal found 9/9![American Airlines logo]()
$773
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:36 am -
1 stop6h 27m
Sat 9/265:18 pm -
1 stop5h 28m
Deal found 9/7![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:58 pm -
1 stop7h 02m
Sat 9/265:36 pm -
1 stop5h 19m
Deal found 9/7![United Airlines logo]()
$419
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:50 am -
1 stop4h 23m
Mon 9/288:30 am -
2 stops10h 58m
Deal found 9/9![United Airlines logo]()
$720
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.
Sat 9/2610:11 am -
1 stop6h 32m
Wed 9/3012:20 pm -
2 stops10h 35m
Deal found 9/11![United Airlines logo]()
$811
One-way flights from Lexington to St. LouisSearch for one-way flight options from Lexington to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Lexington to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 pm -
1 stop5h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$374
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.
Mon 9/215:57 pm -
1 stop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$391
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:58 pm -
2 stops10h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$682
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am -
2 stops14h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$706
Find 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, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $314 (American Airlines) |
Popular in | September |
Cheapest in | January |
Average price | $775 |
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 7,457,451 searches. Data last updated September 11, 2026.
Use the filters below to find and compare flights from Lexington to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Fri 11/13
6:54 pm-10:15 pm
1 stop4h 21m
Lambert-St Louis
Thu 11/19
6:00 am-10:53 am
1 stop3h 53m
$314
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Thu 9/24
8:50 am-12:13 pm
1 stop4h 23m
Lambert-St Louis
Mon 9/28
11:35 am-5:11 pm
1 stop4h 36m
$329
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Sat 9/26
7:18 pm-10:42 pm
1 stop4h 24m
Lambert-St Louis
Wed 9/30
1:54 pm-8:50 pm
1 stop5h 56m
$329
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Sat 2/6
11:00 am-2:28 pm
1 stop4h 28m
Lambert-St Louis
Tue 2/9
7:00 pm-11:56 pm
1 stop3h 56m
$351
Quickest round-trip
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Wed 9/16
7:00 pm-11:43 pm
1 stop5h 43m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$374
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Tue 9/22
5:57 pm-11:42 pm
1 stop6h 45m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$391
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Mon 9/21
5:57 pm-11:42 pm
1 stop6h 45m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$391
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Tue 9/22
6:00 am-1:16 pm
2 stops8h 16m
Lambert-St Louis
Sat 9/26
1:54 pm-8:50 pm
1 stop5h 56m
$423
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Tue 9/22
1:58 pm-11:38 pm
2 stops10h 40m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$682
LexingtonSt. Louis
LEX Lexington Blue Grass - STL Lambert-St Louis
LEXSTL
Lexington Blue Grass
Wed 9/16
7:00 am-8:47 pm
2 stops14h 47m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$706
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Lexington to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Lexington to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Lexington-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lexington-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lexington-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Lexington-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Lexington-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
LEX-STL
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.
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, 2026.
Peruse reviews from past customers who have flown with 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.
Boarding
7.4
Entertainment
6.8
Comfort
7.2
Crew
7.9
Overall
7.1
Food
6.4
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
Boarding
7.4
Entertainment
6.8
Comfort
7.2
Crew
7.9
Overall
7.1
Food
6.4
Reviews
1 / 20
10.0
ExcellentLinda,Jul 2026
ROA - CLT
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
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Lexington and St. Louis flights
Browse other Lexington and St. Louis flight options. Last updated on September 11, 2026.
Other flights from Lexington
Browse through other flights departing from Lexington. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
Top airline flying from Lexington to St. Louis
Discover the top airline 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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$388 | FlexibilityNo cancel fee | On-time71% |