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Cheap flights from Lexington to St. Louis from $229

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 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
American Airlines Logo
10:27 am - 3:35 pm
LEX
-
STL
6h 08m
1 stop
American Airlines Logo
7:05 am - 12:49 pm
STL
-
LEX
4h 44m
1 stop
$269American Airlines
Wed, Apr 1 - Sun, Apr 5
American Airlines Logo
1:14 pm - 6:07 pm
LEX
-
STL
5h 53m
1 stop
American Airlines Logo
8:00 am - 5:16 pm
STL
-
LEX
8h 16m
2 stops
$274American Airlines
Wed, Apr 1 - Sun, Apr 5
United Airlines Logo
1:56 pm - 6:00 pm
LEX
-
STL
5h 04m
1 stop
United Airlines Logo
8:17 am - 1:15 pm
STL
-
LEX
3h 58m
1 stop
$279United Airlines
Tue, Mar 24 - Sat, Mar 28
Delta Logo
7:55 pm - 11:58 pm
LEX
-
STL
5h 03m
1 stop
Delta Logo
1:03 pm - 7:41 pm
STL
-
LEX
5h 38m
1 stop
$311Delta
Mon, Apr 6 - Sat, Apr 18
United Airlines Logo
6:00 pm - 11:00 pm
LEX
-
STL
6h 00m
1 stop
United Airlines Logo
5:00 am - 1:10 pm
STL
-
LEX
7h 10m
1 stop
$329United Airlines
Sat, Aug 29 - Wed, Sep 2
United Airlines Logo
5:39 pm - 9:58 pm
LEX
-
STL
5h 19m
1 stop
United Airlines Logo
6:30 am - 1:13 pm
STL
-
LEX
5h 43m
1 stop
$346United Airlines
Fri, Mar 27 - Sun, Mar 29
United Airlines Logo
6:01 pm - 9:52 pm
LEX
-
STL
4h 51m
1 stop
United Airlines Logo
7:45 am - 1:13 pm
STL
-
LEX
4h 28m
1 stop
$349United Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
10:19 pm - 11:27 am
LEX
-
STL
14h 08m
1 stop
Multiple Airlines Logo
8:23 pm - 8:41 am
STL
-
LEX
35h 18m
2 stops
$355Multiple Airlines
Thu, Apr 9 - Fri, Apr 17
Multiple Airlines Logo
10:19 pm - 11:27 am
LEX
-
STL
14h 08m
1 stop
Multiple Airlines Logo
4:59 pm - 8:41 am
STL
-
LEX
14h 42m
2 stops
$370Multiple Airlines
Thu, Apr 9 - Wed, Apr 15
United Airlines Logo
5:30 am - 8:25 am
LEX
-
STL
3h 55m
1 stop
United Airlines Logo
9:10 am - 5:02 pm
STL
-
LEX
6h 52m
1 stop
$374United Airlines
Tue, Apr 7 - Fri, Apr 17

United Airlines flights from Lexington to St. Louis

Our best United Airlines deals on Lexington to St. Louis flight tickets
United Airlines
Mar 24
LEX1:56 pmLexington Blue Grass
5h 04m
1 stop
STL6:00 pmLambert-St Louis
Mar 28
STL8:17 amLambert-St Louis
3h 58m
1 stop
LEX1:15 pmLexington Blue Grass
$279
United Airlines
Aug 29
LEX6:00 pmLexington Blue Grass
6h 00m
1 stop
STL11:00 pmLambert-St Louis
Sep 2
STL5:00 amLambert-St Louis
7h 10m
1 stop
LEX1:10 pmLexington Blue Grass
$329
United Airlines
Mar 27
LEX5:39 pmLexington Blue Grass
5h 19m
1 stop
STL9:58 pmLambert-St Louis
Mar 29
STL6:30 amLambert-St Louis
5h 43m
1 stop
LEX1:13 pmLexington Blue Grass
$346

American Airlines flights from Lexington to St. Louis

Our best American Airlines deals on Lexington to St. Louis flight tickets
American Airlines
Apr 1
LEX7:00 amLexington Blue Grass
6h 43m
1 stop
STL12:43 pmLambert-St Louis
Apr 5
STL5:12 amLambert-St Louis
7h 02m
1 stop
LEX1:14 pmLexington Blue Grass
$269
American Airlines
Apr 1
LEX1:14 pmLexington Blue Grass
5h 53m
1 stop
STL6:07 pmLambert-St Louis
Apr 5
STL6:00 amLambert-St Louis
7h 33m
2 stops
LEX2:33 pmLexington Blue Grass
$274
American Airlines
Apr 1
LEX7:00 amLexington Blue Grass
7h 39m
2 stops
STL1:39 pmLambert-St Louis
Apr 5
STL6:00 amLambert-St Louis
7h 33m
2 stops
LEX2:33 pmLexington Blue Grass
$279

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 March 10, 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

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Wed 4/1

10:27 am-3:35 pm

1 stop6h 08m

Lambert-St Louis

Sun 4/5

7:05 am-12:49 pm

1 stop4h 44m

$269

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Wed 4/1

1:14 pm-6:07 pm

1 stop5h 53m

Lambert-St Louis

Sun 4/5

8:00 am-5:16 pm

2 stops8h 16m

$274
Quickest round-trip

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Tue 3/24

1:56 pm-6:00 pm

1 stop5h 04m

Lambert-St Louis

Sat 3/28

8:17 am-1:15 pm

1 stop3h 58m

$279

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Mon 4/6

7:55 pm-11:58 pm

1 stop5h 03m

Lambert-St Louis

Sat 4/18

1:03 pm-7:41 pm

1 stop5h 38m

$311

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 8/29

6:00 pm-11:00 pm

1 stop6h 00m

Lambert-St Louis

Wed 9/2

5:00 am-1:10 pm

1 stop7h 10m

$329

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 3/27

5:39 pm-9:58 pm

1 stop5h 19m

Lambert-St Louis

Sun 3/29

6:30 am-1:13 pm

1 stop5h 43m

$346

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Tue 4/7

6:01 pm-9:52 pm

1 stop4h 51m

Lambert-St Louis

Tue 4/14

7:45 am-1:13 pm

1 stop4h 28m

$349

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 4/9

10:19 pm-11:27 am

1 stop14h 08m

Lambert-St Louis

Fri 4/17

8:23 pm-8:41 am

2 stops35h 18m

$355

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 4/9

10:19 pm-11:27 am

1 stop14h 08m

Lambert-St Louis

Wed 4/15

4:59 pm-8:41 am

2 stops14h 42m

$370

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Tue 4/7

5:30 am-8:25 am

1 stop3h 55m

Lambert-St Louis

Fri 4/17

9:10 am-5:02 pm

1 stop6h 52m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 cheapest airline that flies from Lexington Blue Grass to Lambert-St Louis?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Lexington Blue Grass to Lambert-St Louis

What airlines fly to St. Louis?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to St. Louis from Lexington according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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

5h 03m

Direct flights

None
The fastest flight from Lexington to St. Louis takes 5h 03m
There are no direct flights from Lexington to St. Louis. There are no popular flight routes from Lexington to St. Louis.
Search flight deals

  • 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 5h 03m.

  • 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
11,414 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
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Fenton
Alton
Wentzville
Farmington
Edwardsville
Festus
Clayton
Eureka
Litchfield
Glencoe
Shrewsbury

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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