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Cheap flights from St. Louis to Lexington from $204

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Lexington departing on 3/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Lexington

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:41 am - 1:15 pm
STL
-
LEX
4h 34m
1 stop
United Airlines Logo
7:00 am - 10:36 am
LEX
-
STL
4h 36m
1 stop
$249United Airlines
Thu, Mar 5 - Sun, Mar 8
American Airlines Logo
7:00 am - 1:18 pm
STL
-
LEX
5h 18m
1 stop
American Airlines Logo
5:00 am - 8:35 am
LEX
-
STL
4h 35m
1 stop
$279American Airlines
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
7:00 am - 1:18 pm
STL
-
LEX
5h 18m
1 stop
American Airlines Logo
3:00 pm - 11:48 pm
LEX
-
STL
9h 48m
2 stops
$284American Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
7:41 am - 1:15 pm
STL
-
LEX
4h 34m
1 stop
United Airlines Logo
7:00 am - 10:36 am
LEX
-
STL
4h 36m
1 stop
$339United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
7:41 am - 1:15 pm
STL
-
LEX
4h 34m
1 stop
United Airlines Logo
7:00 am - 10:36 am
LEX
-
STL
4h 36m
1 stop
$357United Airlines
Sun, Mar 1 - Thu, Mar 19
United Airlines Logo
1:13 pm - 6:37 pm
STL
-
LEX
4h 24m
1 stop
United Airlines Logo
6:14 pm - 9:11 pm
LEX
-
STL
3h 57m
1 stop
$388United Airlines
Fri, May 22 - Sat, May 23
Multiple Airlines Logo
3:49 pm - 8:56 pm
STL
-
LEX
28h 07m
1 stop
Multiple Airlines Logo
9:35 am - 1:34 pm
LEX
-
STL
28h 59m
2 stops
$437Multiple Airlines
Sun, Mar 1 - Thu, Mar 19
American Airlines Logo
6:00 am - 2:33 pm
STL
-
LEX
7h 33m
2 stops
American Airlines Logo
3:00 pm - 11:48 pm
LEX
-
STL
9h 48m
2 stops
$462American Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
3:23 pm - 8:09 pm
STL
-
LEX
3h 46m
1 stop
United Airlines Logo
5:39 pm - 10:59 pm
LEX
-
STL
6h 20m
1 stop
$475United Airlines
Mon, Mar 9 - Wed, Mar 11
Delta Logo
6:00 am - 11:46 am
STL
-
LEX
4h 46m
1 stop
Delta Logo
7:30 am - 1:05 pm
LEX
-
STL
6h 35m
1 stop
$489Delta
Thu, Apr 16 - Sun, Apr 19

United Airlines flights from St. Louis to Lexington

Our best United Airlines deals on St. Louis to Lexington flight tickets
United Airlines
Mar 5
STL7:41 amLambert-St Louis
4h 34m
1 stop
LEX1:15 pmLexington Blue Grass
Mar 8
LEX7:00 amLexington Blue Grass
4h 36m
1 stop
STL10:36 amLambert-St Louis
$249
United Airlines
Feb 27
STL6:45 pmLambert-St Louis
4h 04m
1 stop
LEX11:49 pmLexington Blue Grass
Mar 3
LEX5:45 pmLexington Blue Grass
4h 20m
1 stop
STL9:05 pmLambert-St Louis
$259
United Airlines
Feb 25
STL7:41 amLambert-St Louis
4h 34m
1 stop
LEX1:15 pmLexington Blue Grass
Mar 1
LEX7:00 amLexington Blue Grass
4h 36m
1 stop
STL10:36 amLambert-St Louis
$339

American Airlines flights from St. Louis to Lexington

Our best American Airlines deals on St. Louis to Lexington flight tickets
American Airlines
Feb 26
STL7:00 amLambert-St Louis
5h 18m
1 stop
LEX1:18 pmLexington Blue Grass
Mar 2
LEX5:00 amLexington Blue Grass
4h 35m
1 stop
STL8:35 amLambert-St Louis
$279
American Airlines
Feb 26
STL7:00 amLambert-St Louis
5h 18m
1 stop
LEX1:18 pmLexington Blue Grass
Mar 2
LEX3:00 pmLexington Blue Grass
9h 48m
2 stops
STL11:48 pmLambert-St Louis
$284
American Airlines
Feb 27
STL5:12 amLambert-St Louis
7h 06m
1 stop
LEX1:18 pmLexington Blue Grass
Mar 3
LEX3:10 pmLexington Blue Grass
9h 38m
2 stops
STL11:48 pmLambert-St Louis
$437

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Lexington 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 February 12, 2026.
Use the filters below to find and compare flights from St. Louis to Lexington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 3/5

7:41 am-1:15 pm

1 stop4h 34m

Lexington Blue Grass

Sun 3/8

7:00 am-10:36 am

1 stop4h 36m

$249

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 2/26

7:00 am-1:18 pm

1 stop5h 18m

Lexington Blue Grass

Mon 3/2

5:00 am-8:35 am

1 stop4h 35m

$279

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 2/26

7:00 am-1:18 pm

1 stop5h 18m

Lexington Blue Grass

Mon 3/2

3:00 pm-11:48 pm

2 stops9h 48m

$284

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 2/25

7:41 am-1:15 pm

1 stop4h 34m

Lexington Blue Grass

Sun 3/1

7:00 am-10:36 am

1 stop4h 36m

$339

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sun 3/1

7:41 am-1:15 pm

1 stop4h 34m

Lexington Blue Grass

Thu 3/19

7:00 am-10:36 am

1 stop4h 36m

$357

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 5/22

1:13 pm-6:37 pm

1 stop4h 24m

Lexington Blue Grass

Sat 5/23

6:14 pm-9:11 pm

1 stop3h 57m

$388

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sun 3/1

3:49 pm-8:56 pm

1 stop28h 07m

Lexington Blue Grass

Thu 3/19

9:35 am-1:34 pm

2 stops28h 59m

$437

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 2/26

6:00 am-2:33 pm

2 stops7h 33m

Lexington Blue Grass

Mon 3/2

3:00 pm-11:48 pm

2 stops9h 48m

$462

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Mon 3/9

3:23 pm-8:09 pm

1 stop3h 46m

Lexington Blue Grass

Wed 3/11

5:39 pm-10:59 pm

1 stop6h 20m

$475

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 4/16

6:00 am-11:46 am

1 stop4h 46m

Lexington Blue Grass

Sun 4/19

7:30 am-1:05 pm

1 stop6h 35m

$489

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 Lexington from

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

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 Lambert-St Louis to Lexington Blue Grass?

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

What airlines fly to Lexington?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Lexington from St. Louis according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Lexington. Keep in mind that there are 3 different airlines that fly to Lexington on a routine basis, so you have a few additional options to choose from.

When to book flights from St. Louis to Lexington

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

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

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

Fastest flight time

4h 17m

Direct flights

None
The fastest flight from St. Louis to Lexington takes 4h 17m
There are no direct flights from St. Louis to Lexington. There are no popular flight routes from St. Louis to Lexington.
Search flight deals

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

    The distance between Lambert-St Louis and Lexington Blue Grass is about 311.1 mi. Typically, this will take 4h 17m by plane in normal conditions.

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

    Prices for flights from Lambert-St Louis Airport to Lexington Blue Grass Airport were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Lexington Blue Grass Airport.

  • What documentation or ID do you need to fly to Lexington Blue Grass Airport?

    The necessary travel and health documents for your Lexington Blue Grass 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 St. Louis to Lexington?

Best airlines flying from St. Louis to Lexington

Compare and see reviews for airlines that fly from St. Louis to Lexington with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $196Free CancellationRating
7.9
8,191 reviews
Search Delta flights
American AirlinesPriceFrom $253Free CancellationRating
7.2
11,277 reviews
Search American Airlines flights

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Richmond
Somerset
Georgetown
Danville
Frankfort
Winchester
Berea
Versailles
Carlisle

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Lexington. momondo saves you time and could save you money on your trip.

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

Flights from St. Louis to Lexington with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 Lexington from St. Louis.

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

If you are not ready to book a flight from St. Louis to Lexington now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Lexington and let you know when they change.

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