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Cheap flights from St. Louis to Lexington from $228

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 12/2. 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 St. Louis to Lexington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:40 am - 4:28 pmSTL-LEX
3h 48m1 stop
Delta Logo
7:59 pm - 11:42 pmLEX-STL
4h 43m1 stop
$229Delta
Find Deal
Thu, Dec 4 - Sun, Dec 7
Delta Logo
10:18 am - 4:55 pmSTL-LEX
5h 37m1 stop
Delta Logo
6:00 am - 9:08 amLEX-STL
4h 08m1 stop
$264Delta
Find Deal
Wed, Mar 4 - Sat, Mar 7
United Airlines Logo
6:43 pm - 11:44 pmSTL-LEX
4h 01m1 stop
United Airlines Logo
10:40 am - 3:47 pmLEX-STL
6h 07m1 stop
$279United Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
American Airlines Logo
3:23 pm - 11:16 pmSTL-LEX
6h 53m2 stops
American Airlines Logo
2:11 pm - 7:30 pmLEX-STL
6h 19m1 stop
$284American Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
American Airlines Logo
6:00 am - 2:41 pmSTL-LEX
7h 41m2 stops
American Airlines Logo
6:00 am - 12:46 pmLEX-STL
7h 46m1 stop
$329American Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
Delta Logo
5:59 pm - 11:07 pmSTL-LEX
4h 08m1 stop
Delta Logo
5:37 pm - 8:41 pmLEX-STL
4h 04m1 stop
$382Delta
Find Deal
Mon, Dec 29 - Fri, Jan 2
American Airlines Logo
6:00 am - 2:41 pmSTL-LEX
7h 41m2 stops
American Airlines Logo
1:05 pm - 11:21 pmLEX-STL
11h 16m2 stops
$423American Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
American Airlines Logo
3:23 pm - 11:16 pmSTL-LEX
6h 53m2 stops
American Airlines Logo
6:03 am - 3:02 pmLEX-STL
9h 59m2 stops
$458American Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
United Airlines Logo
3:14 pm - 8:54 pmSTL-LEX
4h 40m1 stop
United Airlines Logo
10:40 am - 2:24 pmLEX-STL
4h 44m1 stop
$579United Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
United Airlines Logo
11:20 am - 10:40 pmSTL-LEX
10h 20m1 stop
United Airlines Logo
8:35 am - 10:58 pmLEX-STL
15h 23m1 stop
$652United Airlines
Find Deal
Thu, Jan 15 - Sun, Jan 18

Delta flights from St. Louis to Lexington

Our best Delta deals on St. Louis to Lexington flight tickets
Delta
Dec 4
STL11:40 amLambert-St Louis
3h 48m
1 stop
LEX4:28 pmLexington Blue Grass
Dec 7
LEX7:59 pmLexington Blue Grass
4h 43m
1 stop
STL11:42 pmLambert-St Louis
$229
Find similar
Delta
Mar 4
STL10:18 amLambert-St Louis
5h 37m
1 stop
LEX4:55 pmLexington Blue Grass
Mar 7
LEX6:00 amLexington Blue Grass
4h 08m
1 stop
STL9:08 amLambert-St Louis
$264
Find similar
Delta
Dec 29
STL5:59 pmLambert-St Louis
4h 08m
1 stop
LEX11:07 pmLexington Blue Grass
Jan 2
LEX5:37 pmLexington Blue Grass
4h 04m
1 stop
STL8:41 pmLambert-St Louis
$382
Find similar

United Airlines flights from St. Louis to Lexington

Our best United Airlines deals on St. Louis to Lexington flight tickets
United Airlines
Nov 14
STL6:43 pmLambert-St Louis
4h 01m
1 stop
LEX11:44 pmLexington Blue Grass
Nov 18
LEX10:40 amLexington Blue Grass
6h 07m
1 stop
STL3:47 pmLambert-St Louis
$279
Find similar
United Airlines
Nov 17
STL3:14 pmLambert-St Louis
4h 40m
1 stop
LEX8:54 pmLexington Blue Grass
Nov 21
LEX10:40 amLexington Blue Grass
4h 44m
1 stop
STL2:24 pmLambert-St Louis
$579
Find similar
United Airlines
Jan 15
STL11:20 amLambert-St Louis
10h 20m
1 stop
LEX10:40 pmLexington Blue Grass
Jan 18
LEX8:35 amLexington Blue Grass
15h 23m
1 stop
STL10:58 pmLambert-St Louis
$652
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 November 3, 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

Thu 12/4

11:40 am-4:28 pm

1 stop3h 48m

Lexington Blue Grass

Sun 12/7

7:59 pm-11:42 pm

1 stop4h 43m

$229

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 3/4

10:18 am-4:55 pm

1 stop5h 37m

Lexington Blue Grass

Sat 3/7

6:00 am-9:08 am

1 stop4h 08m

$264

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 11/14

6:43 pm-11:44 pm

1 stop4h 01m

Lexington Blue Grass

Tue 11/18

10:40 am-3:47 pm

1 stop6h 07m

$279

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 11/14

3:23 pm-11:16 pm

2 stops6h 53m

Lexington Blue Grass

Tue 11/18

2:11 pm-7:30 pm

1 stop6h 19m

$284

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 3/4

6:00 am-2:41 pm

2 stops7h 41m

Lexington Blue Grass

Sat 3/7

6:00 am-12:46 pm

1 stop7h 46m

$329

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Mon 12/29

5:59 pm-11:07 pm

1 stop4h 08m

Lexington Blue Grass

Fri 1/2

5:37 pm-8:41 pm

1 stop4h 04m

$382

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 3/4

6:00 am-2:41 pm

2 stops7h 41m

Lexington Blue Grass

Sat 3/7

1:05 pm-11:21 pm

2 stops11h 16m

$423

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 11/14

3:23 pm-11:16 pm

2 stops6h 53m

Lexington Blue Grass

Tue 11/18

6:03 am-3:02 pm

2 stops9h 59m

$458

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Mon 11/17

3:14 pm-8:54 pm

1 stop4h 40m

Lexington Blue Grass

Fri 11/21

10:40 am-2:24 pm

1 stop4h 44m

$579

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 1/15

11:20 am-10:40 pm

1 stop10h 20m

Lexington Blue Grass

Sun 1/18

8:35 am-10:58 pm

1 stop15h 23m

$652

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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

Direct flights

None
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 3h 38m 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
7.9
8,002 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,038 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
Carlisle
Versailles

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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