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Cheap flights from Lexington to St. Louis from $177

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lexington to St. Louis departing on 8/10. 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 Lexington to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 12:03 pm
LEX
-
STL
6h 03m
1 stop
United Airlines Logo
8:00 am - 1:16 pm
STL
-
LEX
4h 16m
1 stop
$290United Airlines
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
8:05 am - 4:43 pm
LEX
-
STL
9h 38m
2 stops
American Airlines Logo
8:34 am - 4:25 pm
STL
-
LEX
6h 51m
1 stop
$295American Airlines
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
7:13 pm - 10:40 pm
LEX
-
STL
4h 27m
1 stop
American Airlines Logo
6:25 pm - 12:16 am
STL
-
LEX
4h 51m
1 stop
$299American Airlines
Thu, Aug 20 - Sun, Aug 23
United Airlines Logo
7:00 am - 12:02 pm
LEX
-
STL
6h 02m
1 stop
United Airlines Logo
5:30 pm - 11:55 pm
STL
-
LEX
5h 25m
1 stop
$299United Airlines
Thu, Aug 20 - Sun, Aug 23
American Airlines Logo
8:05 am - 4:43 pm
LEX
-
STL
9h 38m
2 stops
American Airlines Logo
9:32 am - 6:43 pm
STL
-
LEX
8h 11m
2 stops
$300American Airlines
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
5:00 pm - 12:14 am
LEX
-
STL
8h 14m
2 stops
American Airlines Logo
7:35 am - 12:55 pm
STL
-
LEX
4h 20m
1 stop
$304American Airlines
Thu, Aug 20 - Sun, Aug 23
Delta Logo
7:35 am - 1:14 pm
LEX
-
STL
6h 39m
1 stop
Delta Logo
6:00 am - 12:11 pm
STL
-
LEX
5h 11m
1 stop
$314Delta
Fri, Aug 14 - Sun, Aug 16
United Airlines Logo
9:52 am - 3:38 pm
LEX
-
STL
6h 46m
1 stop
United Airlines Logo
6:54 pm - 11:55 pm
STL
-
LEX
4h 01m
1 stop
$314United Airlines
Fri, Aug 14 - Mon, Aug 24
American Airlines Logo
7:13 pm - 10:40 pm
LEX
-
STL
4h 27m
1 stop
American Airlines Logo
6:25 pm - 12:16 am
STL
-
LEX
4h 51m
1 stop
$314American Airlines
Fri, Aug 14 - Sun, Aug 16
American Airlines Logo
5:00 pm - 12:14 am
LEX
-
STL
8h 14m
2 stops
American Airlines Logo
4:54 pm - 11:46 pm
STL
-
LEX
5h 52m
1 stop
$319American Airlines
Fri, Aug 14 - Mon, Aug 24

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United Airlines flights from Lexington to St. Louis

Our best United Airlines deals on Lexington to St. Louis flight tickets
United Airlines
Aug 22
LEX7:00 amLexington Blue Grass
6h 03m
1 stop
STL12:03 pmLambert-St Louis
Aug 29
STL8:00 amLambert-St Louis
4h 16m
1 stop
LEX1:16 pmLexington Blue Grass
$290
United Airlines
Aug 20
LEX7:00 amLexington Blue Grass
6h 02m
1 stop
STL12:02 pmLambert-St Louis
Aug 23
STL5:30 pmLambert-St Louis
5h 25m
1 stop
LEX11:55 pmLexington Blue Grass
$299
United Airlines
Dec 12
LEX7:33 pmLexington Blue Grass
4h 36m
1 stop
STL11:09 pmLambert-St Louis
Dec 15
STL1:08 pmLambert-St Louis
6h 15m
1 stop
LEX8:23 pmLexington Blue Grass
$341

American Airlines flights from Lexington to St. Louis

Our best American Airlines deals on Lexington to St. Louis flight tickets
American Airlines
Aug 22
LEX8:05 amLexington Blue Grass
9h 38m
2 stops
STL4:43 pmLambert-St Louis
Aug 29
STL8:34 amLambert-St Louis
6h 51m
1 stop
LEX4:25 pmLexington Blue Grass
$295
American Airlines
Aug 22
LEX8:05 amLexington Blue Grass
9h 38m
2 stops
STL4:43 pmLambert-St Louis
Aug 29
STL9:32 amLambert-St Louis
8h 11m
2 stops
LEX6:43 pmLexington Blue Grass
$300
American Airlines
Aug 20
LEX5:00 pmLexington Blue Grass
8h 14m
2 stops
STL12:14 amLambert-St Louis
Aug 23
STL7:35 amLambert-St Louis
4h 20m
1 stop
LEX12:55 pmLexington Blue Grass
$304

momondo Fare Finder

 
Customize your flight search to find flights from Lexington to St. Louis 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 27, 2026.
Use the filters below to find and compare flights from Lexington to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 8/22

7:00 am-12:03 pm

1 stop6h 03m

Lambert-St Louis

Sat 8/29

8:00 am-1:16 pm

1 stop4h 16m

$290

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 8/22

8:05 am-4:43 pm

2 stops9h 38m

Lambert-St Louis

Sat 8/29

8:34 am-4:25 pm

1 stop6h 51m

$295
Quickest round-trip

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 8/20

7:13 pm-10:40 pm

1 stop4h 27m

Lambert-St Louis

Sun 8/23

6:25 pm-12:16 am

1 stop4h 51m

$299

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 8/20

7:00 am-12:02 pm

1 stop6h 02m

Lambert-St Louis

Sun 8/23

5:30 pm-11:55 pm

1 stop5h 25m

$299

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 8/22

8:05 am-4:43 pm

2 stops9h 38m

Lambert-St Louis

Sat 8/29

9:32 am-6:43 pm

2 stops8h 11m

$300

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 8/20

5:00 pm-12:14 am

2 stops8h 14m

Lambert-St Louis

Sun 8/23

7:35 am-12:55 pm

1 stop4h 20m

$304

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 8/14

7:35 am-1:14 pm

1 stop6h 39m

Lambert-St Louis

Sun 8/16

6:00 am-12:11 pm

1 stop5h 11m

$314

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 8/14

9:52 am-3:38 pm

1 stop6h 46m

Lambert-St Louis

Mon 8/24

6:54 pm-11:55 pm

1 stop4h 01m

$314

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 8/14

7:13 pm-10:40 pm

1 stop4h 27m

Lambert-St Louis

Sun 8/16

6:25 pm-12:16 am

1 stop4h 51m

$314

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 8/14

5:00 pm-12:14 am

2 stops8h 14m

Lambert-St Louis

Mon 8/24

4:54 pm-11:46 pm

1 stop5h 52m

$319

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 St. Louis from

How to get the cheapest flight ticket from Lexington to St. Louis

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 month to fly to St. Louis?

In general, December is the cheapest month to fly from Lexington to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. The month of August is another great option to travel to St. Louis, with average flight prices from Lexington averaging around $152.

When to book flights from Lexington to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Lexington to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lexington to St. Louis (LEX to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lexington to St. Louis

Fastest flight time

4h 10m

Direct flights

None
The fastest flight from Lexington to St. Louis takes 4h 10m
There are no direct flights from Lexington to St. Louis. There are no popular flight routes from Lexington to St. Louis.
Search flight deals

Frequently asked questions about flying from Lexington to St. Louis

  • How far is Lexington Blue Grass to Lambert-St Louis by plane?

    There are 311.1 mi between Lexington Blue Grass and Lambert-St Louis. By plane, this route typically takes 4h 10m.

  • When did momondo last update prices for flights from Lexington Blue Grass Airport to Lambert-St Louis Airport?

    Prices for flights from Lexington Blue Grass Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lexington Blue Grass Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Lexington Blue Grass Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lexington Blue Grass Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis 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 Lexington to St. Louis?

Best airlines flying from Lexington to St. Louis

Compare and see reviews for airlines that fly from Lexington to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $152Free CancellationRating
7.1
11,837 reviews
Search American Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
O'Fallon
Alton
Fenton
Farmington
Clayton
Wentzville
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Lexington to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Lexington to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Lexington to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Lexington to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Lexington to St. Louis?

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 St. Louis from Lexington.

I’m not ready to book a flight from Lexington to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Lexington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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