HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$238+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — STL
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 January 27, 2026.

This American Airlines deal was found by Cheapflights users on 1/27. 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 2/1111:39 am
LEX
-
STL
1 stop4h 25m
American Airlines
Sun 2/155:12 am
STL
-
LEX
1 stop7h 06m
American Airlines
Deal found 1/27$259
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Sun 2/227:00 am
LEX
-
STL
1 stop4h 36m
United Airlines
Sun 3/17:41 am
STL
-
LEX
1 stop4h 34m
United Airlines
Deal found 1/25$288
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Sun 2/2210:08 pm
LEX
-
STL
2 stops22h 54m
Multiple Airlines
Sun 3/13:49 pm
STL
-
LEX
1 stop28h 07m
Multiple Airlines
Deal found 1/25$297
This American Airlines deal was found by Cheapflights users on 1/25. 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 6/115:48 am
LEX
-
STL
1 stop5h 51m
American Airlines
Tue 6/165:23 am
STL
-
LEX
1 stop6h 08m
American Airlines
Deal found 1/25$299
This United Airlines deal was found by Cheapflights users on 1/25. 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 2/185:45 pm
LEX
-
STL
1 stop4h 20m
United Airlines
Sat 2/218:17 am
STL
-
LEX
1 stop3h 58m
United Airlines
Deal found 1/25$309
This American Airlines deal was found by Cheapflights users on 1/25. 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 2/225:07 pm
LEX
-
STL
1 stop17h 56m
American Airlines
Sun 3/17:00 am
STL
-
LEX
1 stop5h 18m
American Airlines
Deal found 1/25$369
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/1110:30 am
LEX
-
STL
1 stop6h 33m
United Airlines
Sun 2/156:55 pm
STL
-
LEX
1 stop3h 54m
United Airlines
Deal found 1/26$393
This American Airlines deal was found by Cheapflights users on 1/24. 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.
Mon 2/94:35 pm
LEX
-
STL
1 stop7h 37m
American Airlines
Fri 2/136:36 pm
STL
-
LEX
1 stop13h 52m
American Airlines
Deal found 1/24$501
This United Airlines deal was found by Cheapflights users on 1/24. 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.
Mon 2/95:32 pm
LEX
-
STL
1 stop6h 26m
United Airlines
Fri 2/132:45 pm
STL
-
LEX
2 stops21h 30m
United Airlines
Deal found 1/24$537

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$288
(United Airlines)

Popular in

March

Cheapest in

November

Average price

$259
Provider with most accurate pricing for Lexington Blue Grass-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lexington Blue Grass-Lambert-St Louis flights.
Search Deals
From Lexington Blue Grass to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 27, 2026.
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 2/11

11:39 am-3:04 pm

1 stop4h 25m

Lambert-St Louis

Sun 2/15

5:12 am-1:18 pm

1 stop7h 06m

$259

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sun 2/22

7:00 am-10:36 am

1 stop4h 36m

Lambert-St Louis

Sun 3/1

7:41 am-1:15 pm

1 stop4h 34m

$288

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sun 2/22

10:08 pm-8:02 pm

2 stops22h 54m

Lambert-St Louis

Sun 3/1

3:49 pm-8:56 pm

1 stop28h 07m

$297

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 6/11

5:48 am-10:39 am

1 stop5h 51m

Lambert-St Louis

Tue 6/16

5:23 am-12:31 pm

1 stop6h 08m

$299

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Wed 2/18

5:45 pm-9:05 pm

1 stop4h 20m

Lambert-St Louis

Sat 2/21

8:17 am-1:15 pm

1 stop3h 58m

$309

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sun 2/22

5:07 pm-10:03 am

1 stop17h 56m

Lambert-St Louis

Sun 3/1

7:00 am-1:18 pm

1 stop5h 18m

$369

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Wed 2/11

10:30 am-4:03 pm

1 stop6h 33m

Lambert-St Louis

Sun 2/15

6:55 pm-11:49 pm

1 stop3h 54m

$393

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Mon 2/9

4:35 pm-11:12 pm

1 stop7h 37m

Lambert-St Louis

Fri 2/13

6:36 pm-9:28 am

1 stop13h 52m

$501

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Tue 2/17

10:35 am-4:42 pm

1 stop7h 07m

$238

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Tue 2/17

12:34 pm-9:12 pm

2 stops9h 38m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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, October is the cheapest month in which you can book a flight from Lexington to St. Louis (average of $85). Flying from Lexington to St. Louis in December is currently the most expensive (average of $281). 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.

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 January 27, 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.
American Airlines
7.2
Good
11,197 reviews

Crew

8.0

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,197 reviews
American Airlines
7.2
Good
11,197 reviews

Crew

8.0

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

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 4h 25m. The distance from Lexington to St. Louis is about 316 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Lexington to St. Louis round-trip?

    According to our current data, American Airlines ($152), offers the cheapest pricing from Lexington to St. Louis. American Airlines is 50% 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, October is the cheapest month in which you can book a flight from Lexington to St. Louis (average of $85). Flying from Lexington to St. Louis in December is currently the most expensive (average of $281). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Lexington to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Cincinnati to Kansas City flights
Nashville to Kansas City flights
Nashville to St. Louis flights
Louisville to Kansas City flights
Cincinnati to St. Louis flights
Knoxville to St. Louis flights
Knoxville to Kansas City flights
Cincinnati to Springfield flights
Nashville to Springfield flights
Lexington to Kansas City flights
Knoxville to Springfield flights
Louisville to Springfield flights
Louisville to St. Louis flights
Blountville to St. Louis flights
Lexington to Springfield flights
Knoxville to Joplin flights
Blountville to Kansas City flights
Huntington to Springfield flights
Owensboro to St. Louis flights
Blountville to Springfield flights
Huntington to Kansas City flights
Nashville to Quincy flights

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 2,558,603 searches. Data last updated January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$152Average$288FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.