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Cheap flights from Lexington to St. Louis from $229

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Lexington to St. Louis departing on 1/1. 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 Lexington to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:04 am - 1:36 pm
LEX
-
STL
6h 32m1 stop
American Airlines Logo
8:13 am - 3:37 pm
STL
-
LEX
6h 24m1 stop
$229American Airlines
Thu, Jan 1 - Wed, Jan 7
American Airlines Logo
8:04 am - 1:36 pm
LEX
-
STL
6h 32m1 stop
American Airlines Logo
6:00 am - 3:37 pm
STL
-
LEX
8h 37m2 stops
$234American Airlines
Thu, Jan 1 - Wed, Jan 7
United Airlines Logo
5:34 pm - 9:00 pm
LEX
-
STL
4h 26m1 stop
United Airlines Logo
6:45 pm - 11:50 pm
STL
-
LEX
4h 05m1 stop
$244United Airlines
Fri, Feb 27 - Mon, Mar 2
Delta Logo
5:47 pm - 8:41 pm
LEX
-
STL
3h 54m1 stop
Delta Logo
5:00 pm - 11:51 pm
STL
-
LEX
5h 51m1 stop
$269Delta
Thu, Jan 1 - Wed, Jan 7
American Airlines Logo
6:03 pm - 11:55 pm
LEX
-
STL
6h 52m1 stop
American Airlines Logo
6:00 am - 3:37 pm
STL
-
LEX
8h 37m2 stops
$274American Airlines
Thu, Jan 1 - Wed, Jan 7
United Airlines Logo
10:30 am - 4:03 pm
LEX
-
STL
6h 33m1 stop
United Airlines Logo
9:57 am - 5:13 pm
STL
-
LEX
6h 16m1 stop
$289United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
2:00 pm - 7:27 pm
LEX
-
STL
6h 27m1 stop
United Airlines Logo
9:57 am - 5:13 pm
STL
-
LEX
6h 16m1 stop
$309United Airlines
Sat, Jan 24 - Wed, Jan 28
Delta Logo
5:47 pm - 8:41 pm
LEX
-
STL
3h 54m1 stop
Delta Logo
5:59 pm - 11:07 pm
STL
-
LEX
4h 08m1 stop
$319Delta
Thu, Dec 25 - Mon, Dec 29
Delta Logo
7:43 pm - 11:42 pm
LEX
-
STL
4h 59m1 stop
Delta Logo
7:02 pm - 11:59 pm
STL
-
LEX
3h 57m1 stop
$379Delta
Fri, Dec 26 - Tue, Dec 30
United Airlines Logo
1:57 pm - 7:18 pm
LEX
-
STL
6h 21m1 stop
United Airlines Logo
3:10 pm - 9:04 pm
STL
-
LEX
4h 54m1 stop
$393United Airlines
Thu, Dec 25 - Mon, Dec 29

Delta flights from Lexington to St. Louis

Our best Delta deals on Lexington to St. Louis flight tickets
Delta
Jan 1
LEX5:47 pmLexington Blue Grass
3h 54m
1 stop
STL8:41 pmLambert-St Louis
Jan 7
STL5:00 pmLambert-St Louis
5h 51m
1 stop
LEX11:51 pmLexington Blue Grass
$269
Find similar
Delta
Dec 25
LEX5:47 pmLexington Blue Grass
3h 54m
1 stop
STL8:41 pmLambert-St Louis
Dec 29
STL5:59 pmLambert-St Louis
4h 08m
1 stop
LEX11:07 pmLexington Blue Grass
$319
Find similar
Delta
Dec 26
LEX7:43 pmLexington Blue Grass
4h 59m
1 stop
STL11:42 pmLambert-St Louis
Dec 30
STL7:02 pmLambert-St Louis
3h 57m
1 stop
LEX11:59 pmLexington Blue Grass
$379
Find similar

American Airlines flights from Lexington to St. Louis

Our best American Airlines deals on Lexington to St. Louis flight tickets
American Airlines
Jan 1
LEX8:04 amLexington Blue Grass
6h 32m
1 stop
STL1:36 pmLambert-St Louis
Jan 7
STL8:13 amLambert-St Louis
6h 24m
1 stop
LEX3:37 pmLexington Blue Grass
$229
Find similar
American Airlines
Jan 1
LEX8:04 amLexington Blue Grass
6h 32m
1 stop
STL1:36 pmLambert-St Louis
Jan 7
STL6:00 amLambert-St Louis
8h 37m
2 stops
LEX3:37 pmLexington Blue Grass
$234
Find similar
American Airlines
Jan 1
LEX6:03 pmLexington Blue Grass
6h 52m
1 stop
STL11:55 pmLambert-St Louis
Jan 7
STL6:00 amLambert-St Louis
8h 37m
2 stops
LEX3:37 pmLexington Blue Grass
$274
Find similar

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 December 11, 2025.
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

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 1/1

8:04 am-1:36 pm

1 stop6h 32m

Lambert-St Louis

Wed 1/7

8:13 am-3:37 pm

1 stop6h 24m

$229

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 1/1

8:04 am-1:36 pm

1 stop6h 32m

Lambert-St Louis

Wed 1/7

6:00 am-3:37 pm

2 stops8h 37m

$234

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 2/27

5:34 pm-9:00 pm

1 stop4h 26m

Lambert-St Louis

Mon 3/2

6:45 pm-11:50 pm

1 stop4h 05m

$244

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 1/1

5:47 pm-8:41 pm

1 stop3h 54m

Lambert-St Louis

Wed 1/7

5:00 pm-11:51 pm

1 stop5h 51m

$269

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 1/1

6:03 pm-11:55 pm

1 stop6h 52m

Lambert-St Louis

Wed 1/7

6:00 am-3:37 pm

2 stops8h 37m

$274

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 1/24

10:30 am-4:03 pm

1 stop6h 33m

Lambert-St Louis

Wed 1/28

9:57 am-5:13 pm

1 stop6h 16m

$289

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Sat 1/24

2:00 pm-7:27 pm

1 stop6h 27m

Lambert-St Louis

Wed 1/28

9:57 am-5:13 pm

1 stop6h 16m

$309

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 12/25

5:47 pm-8:41 pm

1 stop3h 54m

Lambert-St Louis

Mon 12/29

5:59 pm-11:07 pm

1 stop4h 08m

$319

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Fri 12/26

7:43 pm-11:42 pm

1 stop4h 59m

Lambert-St Louis

Tue 12/30

7:02 pm-11:59 pm

1 stop3h 57m

$379

LexingtonSt. Louis

LEX - STL

LEXSTL

Lexington Blue Grass

Thu 12/25

1:57 pm-7:18 pm

1 stop6h 21m

Lambert-St Louis

Mon 12/29

3:10 pm-9:04 pm

1 stop4h 54m

$393

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $233. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $380. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Lexington in the evening is the least expensive time of day to depart. momondo users have found prices as low as $278 when looking at flights departing in the evening. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $288 per ticket.

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

3h 54m

Direct flights

None
The fastest flight from Lexington to St. Louis takes 3h 54m
There are no direct flights from Lexington to St. Louis. There are no popular flight routes from Lexington to St. Louis.
Search flight deals

  • 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 3h 54m.

  • 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
7.2
11,050 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
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Farmington
Festus
Clayton
Glencoe
Edwardsville
Eureka
Litchfield
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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