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Cheap flights from St. Louis to Lexington from $183

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 8/26. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Lexington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:04 pm - 7:09 pm
STL
-
LEX
5h 05m
1 stop
Delta Logo
6:00 am - 9:20 am
LEX
-
STL
4h 20m
1 stop
$271Delta
Sat, Aug 8 - Sat, Aug 15
Delta Logo
7:00 am - 12:11 pm
STL
-
LEX
4h 11m
1 stop
Delta Logo
7:00 am - 9:54 am
LEX
-
STL
3h 54m
1 stop
$289Delta
Fri, Aug 7 - Thu, Aug 13
American Airlines Logo
4:54 pm - 11:46 pm
STL
-
LEX
5h 52m
1 stop
American Airlines Logo
5:00 pm - 12:14 am
LEX
-
STL
8h 14m
2 stops
$294American Airlines
Fri, Aug 7 - Fri, Aug 14
Delta Logo
1:22 pm - 7:14 pm
STL
-
LEX
4h 52m
1 stop
Delta Logo
6:00 am - 9:43 am
LEX
-
STL
4h 43m
1 stop
$319Delta
Wed, Jul 22 - Sun, Jul 26
American Airlines Logo
8:34 am - 4:25 pm
STL
-
LEX
6h 51m
1 stop
American Airlines Logo
5:00 pm - 11:58 pm
LEX
-
STL
7h 58m
2 stops
$346American Airlines
Sat, Aug 8 - Sat, Aug 15
United Airlines Logo
1:18 pm - 8:29 pm
STL
-
LEX
6h 11m
1 stop
United Airlines Logo
9:52 am - 3:38 pm
LEX
-
STL
6h 46m
1 stop
$350United Airlines
Sat, Aug 8 - Fri, Aug 14
United Airlines Logo
1:29 pm - 8:28 pm
STL
-
LEX
5h 59m
1 stop
United Airlines Logo
9:00 am - 12:13 pm
LEX
-
STL
4h 13m
1 stop
$359United Airlines
Fri, Sep 25 - Mon, Sep 28
American Airlines Logo
6:00 am - 11:27 am
STL
-
LEX
4h 27m
1 stop
American Airlines Logo
5:00 pm - 12:14 am
LEX
-
STL
8h 14m
2 stops
$373American Airlines
Fri, Aug 7 - Thu, Aug 13
United Airlines Logo
7:04 pm - 11:42 pm
STL
-
LEX
3h 38m
1 stop
United Airlines Logo
9:00 am - 12:06 pm
LEX
-
STL
4h 06m
1 stop
$385United Airlines
Wed, Oct 28 - Sat, Oct 31
United Airlines Logo
7:05 pm - 11:59 pm
STL
-
LEX
3h 54m
1 stop
United Airlines Logo
7:00 am - 12:11 pm
LEX
-
STL
6h 11m
1 stop
$389United Airlines
Wed, Jul 22 - Sun, Jul 26

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United Airlines flights from St. Louis to Lexington

Our best United Airlines deals on St. Louis to Lexington flight tickets
United Airlines
Aug 8
STL1:18 pmLambert-St Louis
6h 11m
1 stop
LEX8:29 pmLexington Blue Grass
Aug 14
LEX9:52 amLexington Blue Grass
6h 46m
1 stop
STL3:38 pmLambert-St Louis
$350
United Airlines
Sep 25
STL1:29 pmLambert-St Louis
5h 59m
1 stop
LEX8:28 pmLexington Blue Grass
Sep 28
LEX9:00 amLexington Blue Grass
4h 13m
1 stop
STL12:13 pmLambert-St Louis
$359
United Airlines
Oct 28
STL7:04 pmLambert-St Louis
3h 38m
1 stop
LEX11:42 pmLexington Blue Grass
Oct 31
LEX9:00 amLexington Blue Grass
4h 06m
1 stop
STL12:06 pmLambert-St Louis
$385

American Airlines flights from St. Louis to Lexington

Our best American Airlines deals on St. Louis to Lexington flight tickets
American Airlines
Aug 7
STL4:54 pmLambert-St Louis
5h 52m
1 stop
LEX11:46 pmLexington Blue Grass
Aug 14
LEX5:00 pmLexington Blue Grass
8h 14m
2 stops
STL12:14 amLambert-St Louis
$294
American Airlines
Jul 15
STL7:32 amLambert-St Louis
4h 02m
1 stop
LEX12:34 pmLexington Blue Grass
Jul 22
LEX4:35 pmLexington Blue Grass
4h 28m
1 stop
STL8:03 pmLambert-St Louis
$339
American Airlines
Aug 8
STL8:34 amLambert-St Louis
6h 51m
1 stop
LEX4:25 pmLexington Blue Grass
Aug 15
LEX5:00 pmLexington Blue Grass
7h 58m
2 stops
STL11:58 pmLambert-St Louis
$346

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 July 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

Cheapest round-trip

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 8/8

1:04 pm-7:09 pm

1 stop5h 05m

Lexington Blue Grass

Sat 8/15

6:00 am-9:20 am

1 stop4h 20m

$271

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 8/7

7:00 am-12:11 pm

1 stop4h 11m

Lexington Blue Grass

Thu 8/13

7:00 am-9:54 am

1 stop3h 54m

$289

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 8/7

4:54 pm-11:46 pm

1 stop5h 52m

Lexington Blue Grass

Fri 8/14

5:00 pm-12:14 am

2 stops8h 14m

$294

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 7/22

1:22 pm-7:14 pm

1 stop4h 52m

Lexington Blue Grass

Sun 7/26

6:00 am-9:43 am

1 stop4h 43m

$319

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 8/8

8:34 am-4:25 pm

1 stop6h 51m

Lexington Blue Grass

Sat 8/15

5:00 pm-11:58 pm

2 stops7h 58m

$346

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Sat 8/8

1:18 pm-8:29 pm

1 stop6h 11m

Lexington Blue Grass

Fri 8/14

9:52 am-3:38 pm

1 stop6h 46m

$350

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 9/25

1:29 pm-8:28 pm

1 stop5h 59m

Lexington Blue Grass

Mon 9/28

9:00 am-12:13 pm

1 stop4h 13m

$359

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Fri 8/7

6:00 am-11:27 am

1 stop4h 27m

Lexington Blue Grass

Thu 8/13

5:00 pm-12:14 am

2 stops8h 14m

$373
Quickest round-trip

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 10/28

7:04 pm-11:42 pm

1 stop3h 38m

Lexington Blue Grass

Sat 10/31

9:00 am-12:06 pm

1 stop4h 06m

$385

St. LouisLexington

STL - LEX

STLLEX

Lambert-St Louis

Wed 7/22

7:05 pm-11:59 pm

1 stop3h 54m

Lexington Blue Grass

Sun 7/26

7:00 am-12:11 pm

1 stop6h 11m

$389

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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

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 54m

Direct flights

None
The fastest flight from St. Louis to Lexington takes 3h 54m
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 54m 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
7.8
8,458 reviews
Search Delta flights

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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