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Cheap flights from St. Louis to Lexington from $217

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 6/1. 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.
Delta Logo
7:08 am - 2:42 pm
STL
-
LEX
6h 34m
1 stop
Delta Logo
5:55 pm - 8:37 pm
LEX
-
STL
3h 42m
1 stop
$271Delta
Tue, Jul 21 - Sat, Jul 25
Delta Logo
7:12 pm - 12:07 am
STL
-
LEX
3h 55m
1 stop
Delta Logo
6:00 am - 9:46 am
LEX
-
STL
4h 46m
1 stop
$280Delta
Thu, Jun 11 - Wed, Jun 17
Delta Logo
7:12 pm - 12:07 am
STL
-
LEX
3h 55m
1 stop
Delta Logo
6:00 am - 9:46 am
LEX
-
STL
4h 46m
1 stop
$286Delta
Thu, Jun 11 - Wed, Jun 17
Delta Logo
10:49 am - 5:13 pm
STL
-
LEX
5h 24m
1 stop
Delta Logo
8:20 pm - 11:59 pm
LEX
-
STL
4h 39m
1 stop
$315Delta
Fri, May 29 - Sun, May 31
Delta Logo
10:20 am - 5:24 pm
STL
-
LEX
6h 04m
1 stop
Delta Logo
5:56 pm - 11:53 pm
LEX
-
STL
6h 57m
1 stop
$334Delta
Thu, Jul 2 - Thu, Jul 9
United Airlines Logo
6:00 am - 1:17 pm
STL
-
LEX
6h 17m
1 stop
United Airlines Logo
7:00 am - 12:03 pm
LEX
-
STL
6h 03m
1 stop
$341United Airlines
Wed, Aug 19 - Sat, Aug 22
United Airlines Logo
7:22 am - 1:20 pm
STL
-
LEX
4h 58m
1 stop
United Airlines Logo
10:04 am - 3:46 pm
LEX
-
STL
6h 42m
1 stop
$365United Airlines
Fri, May 29 - Tue, Jun 2
United Airlines Logo
5:29 pm - 11:59 pm
STL
-
LEX
5h 30m
1 stop
United Airlines Logo
5:45 pm - 9:30 pm
LEX
-
STL
4h 45m
1 stop
$389United Airlines
Tue, Jun 2 - Sat, Jun 6
Delta Logo
1:27 pm - 7:33 pm
STL
-
LEX
5h 06m
1 stop
Delta Logo
5:52 pm - 9:09 pm
LEX
-
STL
4h 17m
1 stop
$399Delta
Fri, May 29 - Sun, May 31
United Airlines Logo
6:00 am - 1:20 pm
STL
-
LEX
6h 20m
1 stop
United Airlines Logo
7:00 am - 12:11 pm
LEX
-
STL
6h 11m
1 stop
$409United Airlines
Sat, May 30 - Wed, Jun 3

Delta flights from St. Louis to Lexington

Our best Delta deals on St. Louis to Lexington flight tickets
Delta
Jul 21
STL7:08 amLambert-St Louis
6h 34m
1 stop
LEX2:42 pmLexington Blue Grass
Jul 25
LEX5:55 pmLexington Blue Grass
3h 42m
1 stop
STL8:37 pmLambert-St Louis
$271
Delta
Jun 11
STL7:12 pmLambert-St Louis
3h 55m
1 stop
LEX12:07 amLexington Blue Grass
Jun 17
LEX6:00 amLexington Blue Grass
4h 46m
1 stop
STL9:46 amLambert-St Louis
$280
Delta
Jun 11
STL7:12 pmLambert-St Louis
3h 55m
1 stop
LEX12:07 amLexington Blue Grass
Jun 17
LEX6:00 amLexington Blue Grass
4h 46m
1 stop
STL9:46 amLambert-St Louis
$286

United Airlines flights from St. Louis to Lexington

Our best United Airlines deals on St. Louis to Lexington flight tickets
United Airlines
Aug 19
STL6:00 amLambert-St Louis
6h 17m
1 stop
LEX1:17 pmLexington Blue Grass
Aug 22
LEX7:00 amLexington Blue Grass
6h 03m
1 stop
STL12:03 pmLambert-St Louis
$341
United Airlines
May 29
STL7:22 amLambert-St Louis
4h 58m
1 stop
LEX1:20 pmLexington Blue Grass
Jun 2
LEX10:04 amLexington Blue Grass
6h 42m
1 stop
STL3:46 pmLambert-St Louis
$365
United Airlines
Jun 2
STL5:29 pmLambert-St Louis
5h 30m
1 stop
LEX11:59 pmLexington Blue Grass
Jun 6
LEX5:45 pmLexington Blue Grass
4h 45m
1 stop
STL9:30 pmLambert-St Louis
$389

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 May 18, 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

Cheapest round-trip

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Tue 7/21

7:08 am-2:42 pm

1 stop6h 34m

Lexington Blue Grass

Sat 7/25

5:55 pm-8:37 pm

1 stop3h 42m

$271
Quickest round-trip

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 6/11

7:12 pm-12:07 am

1 stop3h 55m

Lexington Blue Grass

Wed 6/17

6:00 am-9:46 am

1 stop4h 46m

$280

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 6/11

7:12 pm-12:07 am

1 stop3h 55m

Lexington Blue Grass

Wed 6/17

6:00 am-9:46 am

1 stop4h 46m

$286

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 5/29

10:49 am-5:13 pm

1 stop5h 24m

Lexington Blue Grass

Sun 5/31

8:20 pm-11:59 pm

1 stop4h 39m

$315

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Thu 7/2

10:20 am-5:24 pm

1 stop6h 04m

Lexington Blue Grass

Thu 7/9

5:56 pm-11:53 pm

1 stop6h 57m

$334

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 8/19

6:00 am-1:17 pm

1 stop6h 17m

Lexington Blue Grass

Sat 8/22

7:00 am-12:03 pm

1 stop6h 03m

$341

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 5/29

7:22 am-1:20 pm

1 stop4h 58m

Lexington Blue Grass

Tue 6/2

10:04 am-3:46 pm

1 stop6h 42m

$365

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Tue 6/2

5:29 pm-11:59 pm

1 stop5h 30m

Lexington Blue Grass

Sat 6/6

5:45 pm-9:30 pm

1 stop4h 45m

$389

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 5/29

1:27 pm-7:33 pm

1 stop5h 06m

Lexington Blue Grass

Sun 5/31

5:52 pm-9:09 pm

1 stop4h 17m

$399

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 5/30

6:00 am-1:20 pm

1 stop6h 20m

Lexington Blue Grass

Wed 6/3

7:00 am-12:11 pm

1 stop6h 11m

$409

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?

Delta is the most popular carrier operating from Lambert-St Louis to Lexington Blue Grass

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

3h 55m

Direct flights

None
The fastest flight from St. Louis to Lexington takes 3h 55m
There are no direct flights from St. Louis to Lexington. There are no popular flight routes from St. Louis to Lexington.
Search flight deals

Frequently asked questions about flying from St. Louis to Lexington

  • 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 55m 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 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.

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Richmond
Georgetown
Somerset
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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