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Cheap flights from Kentucky to St. Louis from $77

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kentucky to St. Louis departing on 9/7. 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 Kentucky to St. Louis

Cheap round-trip flights

Southern / Mokulele Logo
2:35 pm - 6:36 pmBNA-STL
4h 01m1 stop
Southern / Mokulele Logo
9:50 am - 1:48 pmSTL-BNA
3h 58m1 stop
$157Southern / Mokulele
Find Deal
Tue, Sep 16 - Thu, Sep 18
Southern / Mokulele Logo
2:35 pm - 6:41 pmBNA-STL
4h 06m1 stop
Southern / Mokulele Logo
9:50 am - 1:55 pmSTL-BNA
4h 05m1 stop
$158Southern / Mokulele
Find Deal
Thu, Aug 14 - Thu, Aug 21
Logo
2:35 pm - 6:36 pmBNA-STL
4h 01m1 stop
Logo
12:05 pm - 10:24 amSTL-BNA
22h 19m1 stop
$166
Find Deal
Fri, Sep 5 - Sun, Sep 7
Southwest Logo
8:15 am - 9:35 amBNA-STL
1h 20mnonstop
Southwest Logo
5:50 pm - 7:00 pmSTL-BNA
1h 10mnonstop
$177Southwest
Find Deal
Tue, Sep 9 - Wed, Sep 10
American Airlines Logo
10:33 am - 7:21 pmBNA-STL
8h 48m1 stop
American Airlines Logo
6:00 am - 1:32 pmSTL-BNA
7h 32m1 stop
$179American Airlines
Find Deal
Sat, Aug 23 - Mon, Aug 25
Spirit Airlines Logo
5:03 pm - 1:32 pmBNA-STL
20h 29m1 stop
Spirit Airlines Logo
10:35 am - 4:35 pmSTL-BNA
6h 00m1 stop
$180Spirit Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
Southwest Logo
8:50 pm - 10:05 pmBNA-STL
1h 15mnonstop
Southwest Logo
1:50 pm - 3:00 pmSTL-BNA
1h 10mnonstop
$186Southwest
Find Deal
Tue, Sep 16 - Thu, Sep 18
Logo
7:30 am - 9:06 amBNA-STL
25h 36m1 stop
Logo
9:50 am - 1:48 pmSTL-BNA
3h 58m1 stop
$188
Find Deal
Wed, Sep 24 - Mon, Sep 29
American Airlines Logo
6:49 pm - 11:07 pmCVG-STL
5h 18m1 stop
American Airlines Logo
7:23 am - 12:26 pmSTL-CVG
4h 03m1 stop
$197American Airlines
Find Deal
Mon, Sep 15 - Wed, Sep 17
Spirit Airlines Logo
5:05 am - 1:32 pmBNA-STL
8h 27m2 stops
Spirit Airlines Logo
10:35 am - 10:34 pmSTL-BNA
11h 59m1 stop
$203Spirit Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4

Southern / Mokulele flights from Kentucky to St. Louis

Our best Southern / Mokulele deals on Kentucky to St. Louis flight tickets
Southern / Mokulele
Sep 16
BNA2:35 pmNashville Intl
4h 01m
1 stop
STL6:36 pmLambert-St Louis
Sep 18
STL9:50 amLambert-St Louis
3h 58m
1 stop
BNA1:48 pmNashville Intl
$157
Find similar
Southern / Mokulele
Aug 14
BNA2:35 pmNashville Intl
4h 06m
1 stop
STL6:41 pmLambert-St Louis
Aug 21
STL9:50 amLambert-St Louis
4h 05m
1 stop
BNA1:55 pmNashville Intl
$158
Find similar
Southern / Mokulele
Sep 15
BNA2:35 pmNashville Intl
4h 01m
1 stop
STL6:36 pmLambert-St Louis
Sep 22
STL9:50 amLambert-St Louis
3h 58m
1 stop
BNA1:48 pmNashville Intl
$165
Find similar

Southwest flights from Kentucky to St. Louis

Our best Southwest deals on Kentucky to St. Louis flight tickets
Southwest
Sep 9
BNA8:15 amNashville Intl
1h 20m
STL9:35 amLambert-St Louis
Sep 10
STL5:50 pmLambert-St Louis
1h 10m
BNA7:00 pmNashville Intl
$177
Find similar
Southwest
Sep 16
BNA8:50 pmNashville Intl
1h 15m
STL10:05 pmLambert-St Louis
Sep 18
STL1:50 pmLambert-St Louis
1h 10m
BNA3:00 pmNashville Intl
$186
Find similar
Southwest
Oct 21
BNA12:55 pmNashville Intl
1h 15m
STL2:10 pmLambert-St Louis
Oct 21
STL3:35 pmLambert-St Louis
3h 20m
1 stop
BNA6:55 pmNashville Intl
$187
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kentucky 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 August 2, 2025.
Use the filters below to find and compare flights from Kentucky to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Tue 9/16

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Thu 9/18

9:50 am-1:48 pm

1 stop3h 58m

$157

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Thu 8/14

2:35 pm-6:41 pm

1 stop4h 06m

Lambert-St Louis

Thu 8/21

9:50 am-1:55 pm

1 stop4h 05m

$158

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Fri 9/5

2:35 pm-6:36 pm

1 stop4h 01m

Lambert-St Louis

Sun 9/7

12:05 pm-10:24 am

1 stop22h 19m

$166

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Tue 9/9

8:15 am-9:35 am

Nonstop1h 20m

Lambert-St Louis

Wed 9/10

5:50 pm-7:00 pm

Nonstop1h 10m

$177

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Sat 8/23

10:33 am-7:21 pm

1 stop8h 48m

Lambert-St Louis

Mon 8/25

6:00 am-1:32 pm

1 stop7h 32m

$179

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Thu 8/28

5:03 pm-1:32 pm

1 stop20h 29m

Lambert-St Louis

Thu 9/4

10:35 am-4:35 pm

1 stop6h 00m

$180

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Tue 9/16

8:50 pm-10:05 pm

Nonstop1h 15m

Lambert-St Louis

Thu 9/18

1:50 pm-3:00 pm

Nonstop1h 10m

$186

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Wed 9/24

7:30 am-9:06 am

1 stop25h 36m

Lambert-St Louis

Mon 9/29

9:50 am-1:48 pm

1 stop3h 58m

$188

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 9/15

6:49 pm-11:07 pm

1 stop5h 18m

Lambert-St Louis

Wed 9/17

7:23 am-12:26 pm

1 stop4h 03m

$197

NashvilleSt. Louis

BNA - STL

BNASTL

Nashville Intl

Thu 8/28

5:05 am-1:32 pm

2 stops8h 27m

Lambert-St Louis

Thu 9/4

10:35 am-10:34 pm

1 stop11h 59m

$203

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 St. Louis from

How to get the cheapest flight ticket from Kentucky 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 Saturday when prices can be found for as low as $297. 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 Thursday because tickets tend to average around $475. 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 Kentucky in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $304 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $344 per ticket.

What is the cheapest Kentucky to Lambert-St Louis flight route?

Fly from Louisville Intl to Lambert-St Louis for the best Kentucky - Lambert-St Louis flight prices

What cabin class options are available on Kentucky to Lambert-St Louis flights?

There are 1 cabin classes available to choose from on Kentucky to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Kentucky to St. Louis flight deals and tips

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

Best Price Found

$77

Fastest flight time

1h 15m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Kentucky in the past 72 hours is $77. The best round-trip flight deal from Kentucky to St. Louis found on momondo in the last 72 hours is $157.
The fastest flight from Kentucky to St. Louis takes 1h 15m
Direct flights go from Kentucky to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
Search flight deals

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

    Prices for flights from Kentucky to Lambert-St Louis Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kentucky to Lambert-St Louis Airport.

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

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Kentucky to St. Louis

Compare and see reviews for airlines that fly from Kentucky to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $204Free CancellationRating
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
10,000 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
Florissant
Fenton
Collinsville
O'Fallon
Alton
St. Peters
Farmington
Wentzville
Festus
Glencoe
Eureka
Edwardsville
Clayton
Shrewsbury
Grafton

Why use momondo?

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

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

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

All flight searches from Kentucky to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Kentucky to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Kentucky to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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