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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 10/13. 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

United Airlines Logo
12:25 pm - 5:20 pmSTL-LEX
3h 55m1 stop
United Airlines Logo
7:33 pm - 10:35 pmLEX-STL
4h 02m1 stop
$229United Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
Delta Logo
7:10 am - 12:15 pmSTL-LEX
4h 05m1 stop
Delta Logo
5:48 pm - 9:50 pmLEX-STL
5h 02m1 stop
$239Delta
Find Deal
Tue, Sep 30 - Sat, Oct 4
Delta Logo
6:52 pm - 12:04 amSTL-LEX
4h 12m1 stop
Delta Logo
7:59 pm - 11:41 pmLEX-STL
4h 42m1 stop
$249Delta
Find Deal
Mon, Oct 13 - Mon, Oct 20
Delta Logo
7:30 am - 2:59 pmSTL-LEX
6h 29m1 stop
Delta Logo
7:10 am - 10:50 amLEX-STL
4h 40m1 stop
$278Delta
Find Deal
Wed, Mar 4 - Sat, Mar 7
Delta Logo
7:05 am - 12:18 pmSTL-LEX
4h 13m1 stop
Delta Logo
6:00 am - 9:15 amLEX-STL
4h 15m1 stop
$284Delta
Find Deal
Wed, Oct 15 - Sat, Oct 18
United Airlines Logo
7:41 am - 1:20 pmSTL-LEX
4h 39m1 stop
United Airlines Logo
5:50 pm - 9:04 pmLEX-STL
4h 14m1 stop
$289United Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
United Airlines Logo
9:20 am - 3:48 pmSTL-LEX
5h 28m1 stop
United Airlines Logo
7:33 pm - 10:35 pmLEX-STL
4h 02m1 stop
$299United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
American Airlines Logo
6:00 am - 10:42 amSTL-LEX
3h 42m1 stop
American Airlines Logo
7:19 pm - 11:54 pmLEX-STL
5h 35m1 stop
$319American Airlines
Find Deal
Sun, Oct 12 - Sat, Oct 18
American Airlines Logo
11:18 am - 3:35 pmSTL-LEX
3h 17m1 stop
American Airlines Logo
1:13 pm - 7:03 pmLEX-STL
6h 50m2 stops
$348American Airlines
Find Deal
Wed, Mar 4 - Sat, Mar 7
Multiple Airlines Logo
7:55 pm - 9:43 pmSTL-LEX
24h 48m2 stops
Multiple Airlines Logo
10:33 pm - 1:53 pmLEX-STL
16h 20m1 stop
$496Multiple Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5

Delta flights from St. Louis to Lexington

Our best Delta deals on St. Louis to Lexington flight tickets
Delta
Sep 30
STL7:10 amLambert-St Louis
4h 05m
1 stop
LEX12:15 pmLexington Blue Grass
Oct 4
LEX5:48 pmLexington Blue Grass
5h 02m
1 stop
STL9:50 pmLambert-St Louis
$239
Find similar
Delta
Oct 13
STL6:52 pmLambert-St Louis
4h 12m
1 stop
LEX12:04 amLexington Blue Grass
Oct 20
LEX7:59 pmLexington Blue Grass
4h 42m
1 stop
STL11:41 pmLambert-St Louis
$249
Find similar
Delta
Sep 24
STL9:19 amLambert-St Louis
4h 38m
1 stop
LEX2:57 pmLexington Blue Grass
Sep 29
LEX7:53 pmLexington Blue Grass
4h 31m
1 stop
STL11:24 pmLambert-St Louis
$269
Find similar

American Airlines flights from St. Louis to Lexington

Our best American Airlines deals on St. Louis to Lexington flight tickets
American Airlines
Oct 12
STL6:00 amLambert-St Louis
3h 42m
1 stop
LEX10:42 amLexington Blue Grass
Oct 18
LEX7:19 pmLexington Blue Grass
5h 35m
1 stop
STL11:54 pmLambert-St Louis
$319
Find similar
American Airlines
Sep 30
STL6:10 amLambert-St Louis
3h 29m
1 stop
LEX10:39 amLexington Blue Grass
Oct 4
LEX2:35 pmLexington Blue Grass
6h 57m
2 stops
STL8:32 pmLambert-St Louis
$348
Find similar
American Airlines
Oct 11
STL6:00 amLambert-St Louis
3h 42m
1 stop
LEX10:42 amLexington Blue Grass
Oct 18
LEX6:00 amLexington Blue Grass
10h 45m
2 stops
STL3:45 pmLambert-St Louis
$377
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 September 17, 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 10/11

12:25 pm-5:20 pm

1 stop3h 55m

Lexington Blue Grass

Sat 10/18

7:33 pm-10:35 pm

1 stop4h 02m

$229

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Tue 9/30

7:10 am-12:15 pm

1 stop4h 05m

Lexington Blue Grass

Sat 10/4

5:48 pm-9:50 pm

1 stop5h 02m

$239

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Mon 10/13

6:52 pm-12:04 am

1 stop4h 12m

Lexington Blue Grass

Mon 10/20

7:59 pm-11:41 pm

1 stop4h 42m

$249

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 3/4

7:30 am-2:59 pm

1 stop6h 29m

Lexington Blue Grass

Sat 3/7

7:10 am-10:50 am

1 stop4h 40m

$278

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 10/15

7:05 am-12:18 pm

1 stop4h 13m

Lexington Blue Grass

Sat 10/18

6:00 am-9:15 am

1 stop4h 15m

$284

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 3/4

7:41 am-1:20 pm

1 stop4h 39m

Lexington Blue Grass

Sat 3/7

5:50 pm-9:04 pm

1 stop4h 14m

$289

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Tue 9/30

9:20 am-3:48 pm

1 stop5h 28m

Lexington Blue Grass

Sat 10/4

7:33 pm-10:35 pm

1 stop4h 02m

$299

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sun 10/12

6:00 am-10:42 am

1 stop3h 42m

Lexington Blue Grass

Sat 10/18

7:19 pm-11:54 pm

1 stop5h 35m

$319

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 3/4

11:18 am-3:35 pm

1 stop3h 17m

Lexington Blue Grass

Sat 3/7

1:13 pm-7:03 pm

2 stops6h 50m

$348

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 10/1

7:55 pm-9:43 pm

2 stops24h 48m

Lexington Blue Grass

Sun 10/5

10:33 pm-1:53 pm

1 stop16h 20m

$496

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 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 $228Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
10,000 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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