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Cheap flights from Lexington to St. Louis from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lexington to St. Louis departing on 6/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Lexington to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:11 pm - 9:38 pm
LEX
-
STL
4h 27m
1 stop
Delta Logo
7:05 am - 12:19 pm
STL
-
LEX
4h 14m
1 stop
$290Delta
Sat, May 23 - Sat, May 30
Delta Logo
8:20 pm - 11:59 pm
LEX
-
STL
4h 39m
1 stop
Delta Logo
5:24 pm - 12:07 am
STL
-
LEX
5h 43m
1 stop
$309Delta
Thu, Jun 4 - Sun, Jun 7
Delta Logo
10:06 am - 2:51 pm
LEX
-
STL
5h 45m
1 stop
Delta Logo
12:59 pm - 7:43 pm
STL
-
LEX
5h 44m
1 stop
$314Delta
Sat, May 16 - Sat, May 23
Delta Logo
7:02 am - 11:54 am
LEX
-
STL
5h 52m
1 stop
Delta Logo
6:57 pm - 11:59 pm
STL
-
LEX
4h 02m
1 stop
$319Delta
Sat, May 9 - Wed, May 13
Delta Logo
5:56 pm - 11:53 pm
LEX
-
STL
6h 57m
1 stop
Delta Logo
10:51 am - 5:10 pm
STL
-
LEX
5h 19m
1 stop
$334Delta
Fri, Jul 10 - Mon, Jul 13
United Airlines Logo
10:12 am - 3:46 pm
LEX
-
STL
6h 34m
1 stop
United Airlines Logo
5:33 pm - 10:35 pm
STL
-
LEX
4h 02m
1 stop
$340United Airlines
Fri, Jul 10 - Mon, Jul 13
United Airlines Logo
10:12 am - 3:46 pm
LEX
-
STL
6h 34m
1 stop
United Airlines Logo
6:48 pm - 12:14 am
STL
-
LEX
4h 26m
1 stop
$341United Airlines
Tue, Jul 28 - Sat, Aug 1
United Airlines Logo
5:15 am - 8:39 am
LEX
-
STL
4h 24m
1 stop
United Airlines Logo
6:00 am - 1:20 pm
STL
-
LEX
6h 20m
1 stop
$350United Airlines
Sat, May 23 - Wed, May 27
United Airlines Logo
1:55 pm - 6:13 pm
LEX
-
STL
5h 18m
1 stop
United Airlines Logo
5:29 pm - 11:59 pm
STL
-
LEX
5h 30m
1 stop
$360United Airlines
Sat, May 23 - Wed, May 27
American Airlines Logo
5:20 am - 8:37 am
LEX
-
STL
4h 17m
1 stop
American Airlines Logo
7:00 am - 12:58 pm
STL
-
LEX
4h 58m
1 stop
$364American Airlines
Sun, Jul 12 - Sat, Jul 18

American Airlines flights from Lexington to St. Louis

Our best American Airlines deals on Lexington to St. Louis flight tickets
American Airlines
Jul 12
LEX5:20 amLexington Blue Grass
4h 17m
1 stop
STL8:37 amLambert-St Louis
Jul 18
STL7:00 amLambert-St Louis
4h 58m
1 stop
LEX12:58 pmLexington Blue Grass
$364
American Airlines
May 7
LEX1:14 pmLexington Blue Grass
7h 16m
1 stop
STL7:30 pmLambert-St Louis
May 10
STL6:29 amLambert-St Louis
7h 49m
1 stop
LEX3:18 pmLexington Blue Grass
$369
American Airlines
Jun 26
LEX4:45 pmLexington Blue Grass
8h 14m
1 stop
STL11:59 pmLambert-St Louis
Jun 27
STL5:11 pmLambert-St Louis
6h 19m
1 stop
LEX12:30 amLexington Blue Grass
$376

Delta flights from Lexington to St. Louis

Our best Delta deals on Lexington to St. Louis flight tickets
Delta
May 23
LEX6:11 pmLexington Blue Grass
4h 27m
1 stop
STL9:38 pmLambert-St Louis
May 30
STL7:05 amLambert-St Louis
4h 14m
1 stop
LEX12:19 pmLexington Blue Grass
$290
Delta
May 16
LEX10:06 amLexington Blue Grass
5h 45m
1 stop
STL2:51 pmLambert-St Louis
May 23
STL12:59 pmLambert-St Louis
5h 44m
1 stop
LEX7:43 pmLexington Blue Grass
$314
Delta
May 9
LEX7:02 amLexington Blue Grass
5h 52m
1 stop
STL11:54 amLambert-St Louis
May 13
STL6:57 pmLambert-St Louis
4h 02m
1 stop
LEX11:59 pmLexington Blue Grass
$319

momondo 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, momondo users made 832,500 searches. Data last updated April 29, 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

Price

Cheapest round-trip
Quickest round-trip

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 5/23

6:11 pm-9:38 pm

1 stop4h 27m

Lambert-St Louis

Sat 5/30

7:05 am-12:19 pm

1 stop4h 14m

$290

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 6/4

8:20 pm-11:59 pm

1 stop4h 39m

Lambert-St Louis

Sun 6/7

5:24 pm-12:07 am

1 stop5h 43m

$309

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 5/16

10:06 am-2:51 pm

1 stop5h 45m

Lambert-St Louis

Sat 5/23

12:59 pm-7:43 pm

1 stop5h 44m

$314

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 5/9

7:02 am-11:54 am

1 stop5h 52m

Lambert-St Louis

Wed 5/13

6:57 pm-11:59 pm

1 stop4h 02m

$319

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 7/10

5:56 pm-11:53 pm

1 stop6h 57m

Lambert-St Louis

Mon 7/13

10:51 am-5:10 pm

1 stop5h 19m

$334

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 7/10

10:12 am-3:46 pm

1 stop6h 34m

Lambert-St Louis

Mon 7/13

5:33 pm-10:35 pm

1 stop4h 02m

$340

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Tue 7/28

10:12 am-3:46 pm

1 stop6h 34m

Lambert-St Louis

Sat 8/1

6:48 pm-12:14 am

1 stop4h 26m

$341

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 5/23

5:15 am-8:39 am

1 stop4h 24m

Lambert-St Louis

Wed 5/27

6:00 am-1:20 pm

1 stop6h 20m

$350

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 5/23

1:55 pm-6:13 pm

1 stop5h 18m

Lambert-St Louis

Wed 5/27

5:29 pm-11:59 pm

1 stop5h 30m

$360

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sun 7/12

5:20 am-8:37 am

1 stop4h 17m

Lambert-St Louis

Sat 7/18

7:00 am-12:58 pm

1 stop4h 58m

$364

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Lexington to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Lexington and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, December is the cheapest month to fly from Lexington to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of July is another great option to travel to St. Louis, with average flight prices from Lexington averaging around $0.

When to book flights from Lexington to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Lexington to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lexington to St. Louis (LEX to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lexington to St. Louis

Fastest flight time

4h 21m

Direct flights

None
The fastest flight from Lexington to St. Louis takes 4h 21m
There are no direct flights from Lexington to St. Louis. There are no popular flight routes from Lexington to St. Louis.
Search flight deals

Frequently asked questions about flying from Lexington to St. Louis

  • How far is Lexington Blue Grass to Lambert-St Louis by plane?

    There are 311.1 mi between Lexington Blue Grass and Lambert-St Louis. By plane, this route typically takes 4h 21m.

  • When did momondo last update prices for flights from Lexington Blue Grass Airport to Lambert-St Louis Airport?

    Prices for flights from Lexington Blue Grass Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lexington Blue Grass Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Lexington Blue Grass Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lexington Blue Grass Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Lexington to St. Louis?

Best airlines flying from Lexington to St. Louis

Compare and see reviews for airlines that fly from Lexington to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $152Free CancellationRating
7.1
11,678 reviews
Search American Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Lexington to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Lexington to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Lexington to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Lexington to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Lexington to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Lexington.

I’m not ready to book a flight from Lexington to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Lexington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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