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Cheap flights from St. Louis to Lexington from $197

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 8/19. 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

Delta Logo
10:15 am - 2:55 pmSTL-LEX
3h 40m1 stop
Delta Logo
3:40 pm - 7:07 pmLEX-STL
4h 27m1 stop
$229Delta
Find Deal
Sat, Aug 23 - Mon, Aug 25
American Airlines Logo
6:00 am - 2:37 pmSTL-LEX
7h 37m2 stops
American Airlines Logo
7:56 am - 1:51 pmLEX-STL
6h 55m1 stop
$234American Airlines
Find Deal
Sat, Aug 23 - Mon, Aug 25
Delta Logo
6:49 pm - 11:50 pmSTL-LEX
4h 01m1 stop
Delta Logo
5:54 pm - 10:02 pmLEX-STL
5h 08m1 stop
$239Delta
Find Deal
Fri, Aug 15 - Tue, Aug 19
Logo
10:37 am - 6:57 pmSTL-LEX
7h 20m1 stop
Logo
9:19 am - 1:32 pmLEX-STL
29h 13m3 stops
$316
Find Deal
Sun, Aug 17 - Thu, Aug 21
United Airlines Logo
5:30 pm - 11:50 pmSTL-LEX
5h 20m1 stop
United Airlines Logo
11:07 am - 2:33 pmLEX-STL
4h 26m1 stop
$324United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
American Airlines Logo
8:03 pm - 10:39 amSTL-LEX
13h 36m1 stop
American Airlines Logo
6:00 am - 9:26 amLEX-STL
4h 26m1 stop
$347American Airlines
Find Deal
Thu, Oct 2 - Sun, Oct 5
Logo
10:35 am - 6:35 pmSTL-LEX
7h 00m1 stop
Logo
10:33 pm - 4:35 pmLEX-STL
19h 02m3 stops
$395
Find Deal
Thu, Oct 2 - Sun, Oct 5
Delta Logo
6:42 pm - 11:47 pmSTL-LEX
4h 05m1 stop
Delta Logo
5:56 pm - 11:24 pmLEX-STL
6h 28m1 stop
$418Delta
Find Deal
Fri, Sep 19 - Sun, Sep 21
Delta Logo
10:45 am - 5:10 pmSTL-LEX
5h 25m1 stop
Delta Logo
5:54 pm - 11:14 pmLEX-STL
6h 20m1 stop
$480Delta
Find Deal
Tue, Aug 12 - Thu, Aug 14
United Airlines Logo
5:15 am - 11:50 pmSTL-LEX
17h 35m2 stops
United Airlines Logo
1:59 pm - 7:27 pmLEX-STL
6h 28m1 stop
$492United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19

Delta flights from St. Louis to Lexington

Our best Delta deals on St. Louis to Lexington flight tickets
Delta
Aug 23
STL10:15 amLambert-St Louis
3h 40m
1 stop
LEX2:55 pmLexington Blue Grass
Aug 25
LEX3:40 pmLexington Blue Grass
4h 27m
1 stop
STL7:07 pmLambert-St Louis
$229
Find similar
Delta
Aug 15
STL6:49 pmLambert-St Louis
4h 01m
1 stop
LEX11:50 pmLexington Blue Grass
Aug 19
LEX5:54 pmLexington Blue Grass
5h 08m
1 stop
STL10:02 pmLambert-St Louis
$239
Find similar
Delta
Sep 19
STL6:42 pmLambert-St Louis
4h 05m
1 stop
LEX11:47 pmLexington Blue Grass
Sep 21
LEX5:56 pmLexington Blue Grass
6h 28m
1 stop
STL11:24 pmLambert-St Louis
$418
Find similar

American Airlines flights from St. Louis to Lexington

Our best American Airlines deals on St. Louis to Lexington flight tickets
American Airlines
Aug 23
STL6:00 amLambert-St Louis
7h 37m
2 stops
LEX2:37 pmLexington Blue Grass
Aug 25
LEX7:56 amLexington Blue Grass
6h 55m
1 stop
STL1:51 pmLambert-St Louis
$234
Find similar
American Airlines
Aug 8
STL7:01 amLambert-St Louis
5h 41m
1 stop
LEX1:42 pmLexington Blue Grass
Aug 9
LEX4:04 pmLexington Blue Grass
5h 43m
1 stop
STL8:47 pmLambert-St Louis
$314
Find similar
American Airlines
Oct 2
STL8:03 pmLambert-St Louis
13h 36m
1 stop
LEX10:39 amLexington Blue Grass
Oct 5
LEX6:00 amLexington Blue Grass
4h 26m
1 stop
STL9:26 amLambert-St Louis
$347
Find similar

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 August 2, 2025.
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

Sat 8/23

10:15 am-2:55 pm

1 stop3h 40m

Lexington Blue Grass

Mon 8/25

3:40 pm-7:07 pm

1 stop4h 27m

$229

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 8/23

6:00 am-2:37 pm

2 stops7h 37m

Lexington Blue Grass

Mon 8/25

7:56 am-1:51 pm

1 stop6h 55m

$234

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 8/15

6:49 pm-11:50 pm

1 stop4h 01m

Lexington Blue Grass

Tue 8/19

5:54 pm-10:02 pm

1 stop5h 08m

$239

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sun 8/17

10:37 am-6:57 pm

1 stop7h 20m

Lexington Blue Grass

Thu 8/21

9:19 am-1:32 pm

3 stops29h 13m

$316

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 8/15

5:30 pm-11:50 pm

1 stop5h 20m

Lexington Blue Grass

Tue 8/19

11:07 am-2:33 pm

1 stop4h 26m

$324

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 10/2

8:03 pm-10:39 am

1 stop13h 36m

Lexington Blue Grass

Sun 10/5

6:00 am-9:26 am

1 stop4h 26m

$347

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 10/2

10:35 am-6:35 pm

1 stop7h 00m

Lexington Blue Grass

Sun 10/5

10:33 pm-4:35 pm

3 stops19h 02m

$395

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 9/19

6:42 pm-11:47 pm

1 stop4h 05m

Lexington Blue Grass

Sun 9/21

5:56 pm-11:24 pm

1 stop6h 28m

$418

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Tue 8/12

10:45 am-5:10 pm

1 stop5h 25m

Lexington Blue Grass

Thu 8/14

5:54 pm-11:14 pm

1 stop6h 20m

$480

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 8/15

5:15 am-11:50 pm

2 stops17h 35m

Lexington Blue Grass

Tue 8/19

1:59 pm-7:27 pm

1 stop6h 28m

$492

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 day to depart on your flight to Lexington?

On average, the least expensive day to fly to Lexington from St. Louis is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $266. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $373.

What is the cheapest time of day to depart on your flight to Lexington?

The cheapest time of day to fly to Lexington is in the afternoon when flights can be purchased for as low as $295. Try not to purchase tickets in the morning because they tend to be around $300. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Best Price Found

$197

Fastest flight time

3h 36m

Direct flights

None

Airports in Lexington

1 airport
The best one-way flight to Lexington from St. Louis in the past 72 hours is $197. The best round-trip flight deal from St. Louis to Lexington found on momondo in the last 72 hours is $229.
The fastest flight from St. Louis to Lexington takes 3h 36m
There are no direct flights from St. Louis to Lexington. Popular non-direct route for this connection is Lambert-St Louis Airport - Lexington Blue Grass Airport.
There is 1 airport near Lexington: Lexington Blue Grass (LEX)
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 3h 40m 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 $228Free CancellationRating
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $288Free CancellationRating
7.4
8,904 reviews
Search United 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
Midway
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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