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Cheap flights from Cincinnati to St. Louis from $103

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Cincinnati to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:43 pm - 1:10 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 27m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
2:29 pm - 11:38 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
20h 09m1 stop Atlanta Hartsfield-Jackson
$103Frontier
Sun, Sep 20 - Wed, Sep 30
Frontier Logo
12:43 pm - 1:10 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 27m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
2:29 pm - 11:38 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
20h 09m1 stop Atlanta Hartsfield-Jackson
$109Frontier
Thu, Oct 1 - Mon, Oct 5
Frontier Logo
12:43 pm - 1:10 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 27m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
2:29 pm - 11:38 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
20h 09m1 stop Atlanta Hartsfield-Jackson
$110Frontier
Thu, Oct 1 - Mon, Oct 5
American Airlines Logo
5:34 am - 1:16 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
8h 42m1 stop Chicago O'Hare Intl
American Airlines Logo
11:01 am - 6:54 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
6h 53m1 stop Chicago O'Hare Intl
$263American Airlines
Thu, Sep 24 - Sat, Sep 26
American Airlines Logo
10:33 am - 4:51 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
7h 18m1 stop Chicago O'Hare Intl
American Airlines Logo
11:23 am - 12:39 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
12h 16m1 stop Chicago O'Hare Intl
$263American Airlines
Sat, Oct 31 - Sat, Nov 7
United Airlines Logo
6:34 pm - 9:31 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
3h 57m1 stop Chicago O'Hare Intl
United Airlines Logo
10:53 am - 5:00 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
5h 07m1 stop Chicago O'Hare Intl
$279United Airlines
Wed, Sep 9 - Thu, Sep 10
Southwest Logo
3:30 pm - 9:15 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
6h 45m1 stop Baltimore/Washington
Southwest Logo
12:50 pm - 8:15 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
6h 25m1 stop Chicago Midway
$279Southwest
Wed, Sep 23 - Wed, Sep 30
Southwest Logo
12:45 pm - 3:45 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
4h 00m1 stop Nashville Intl
Southwest Logo
5:45 am - 12:20 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
5h 35m2 stops Chicago Midway Nashville Intl
$284Southwest
Sat, Oct 31 - Sat, Nov 7
American Airlines Logo
5:32 am - 12:50 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
8h 18m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 12:22 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
5h 22m1 stop Chicago O'Hare Intl
$310American Airlines
Thu, Nov 5 - Sun, Nov 8
United Airlines Logo
10:50 am - 3:21 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
5h 31m1 stop Chicago O'Hare Intl
United Airlines Logo
7:01 pm - 12:07 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
4h 06m1 stop Chicago O'Hare Intl
$318United Airlines
Sun, Oct 11 - Mon, Oct 12

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Frontier flights from Cincinnati to St. Louis

Our best Frontier deals on Cincinnati to St. Louis flight tickets
Frontier
Sep 20
CVG12:43 pmCincinnati Cinci./N. Kentucky
25h 27m
1 stop
STL1:10 pmLambert-St Louis
Sep 30
STL2:29 pmLambert-St Louis
20h 09m
1 stop
CVG11:38 amCincinnati Cinci./N. Kentucky
$103
Frontier
Oct 1
CVG12:43 pmCincinnati Cinci./N. Kentucky
25h 27m
1 stop
STL1:10 pmLambert-St Louis
Oct 5
STL2:29 pmLambert-St Louis
20h 09m
1 stop
CVG11:38 amCincinnati Cinci./N. Kentucky
$109
Frontier
Oct 1
CVG12:43 pmCincinnati Cinci./N. Kentucky
25h 27m
1 stop
STL1:10 pmLambert-St Louis
Oct 5
STL2:29 pmLambert-St Louis
20h 09m
1 stop
CVG11:38 amCincinnati Cinci./N. Kentucky
$110

Southwest flights from Cincinnati to St. Louis

Our best Southwest deals on Cincinnati to St. Louis flight tickets
Southwest
Sep 9
CVG7:00 amCincinnati Cinci./N. Kentucky
9h 10m
2 stops
STL3:10 pmLambert-St Louis
Sep 10
STL3:45 pmLambert-St Louis
4h 55m
1 stop
CVG9:40 pmCincinnati Cinci./N. Kentucky
$284
Southwest
Oct 1
CVG7:20 pmCincinnati Cinci./N. Kentucky
6h 15m
2 stops
STL12:35 amLambert-St Louis
Oct 5
STL5:25 amLambert-St Louis
7h 20m
2 stops
CVG1:45 pmCincinnati Cinci./N. Kentucky
$289
Southwest
Sep 30
CVG5:30 pmCincinnati Cinci./N. Kentucky
5h 45m
1 stop
STL10:15 pmLambert-St Louis
Oct 2
STL4:30 pmLambert-St Louis
6h 35m
2 stops
CVG12:05 amCincinnati Cinci./N. Kentucky
$294

momondo Fare Finder

 
Use the filters below to find and compare flights from Cincinnati to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Sun 9/20

12:43 pm-1:10 pm

1 stop25h 27m

Lambert-St Louis

Wed 9/30

2:29 pm-11:38 am

1 stop20h 09m

$103

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 10/1

12:43 pm-1:10 pm

1 stop25h 27m

Lambert-St Louis

Mon 10/5

2:29 pm-11:38 am

1 stop20h 09m

$109

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 10/1

12:43 pm-1:10 pm

1 stop25h 27m

Lambert-St Louis

Mon 10/5

2:29 pm-11:38 am

1 stop20h 09m

$110

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 9/24

5:34 am-1:16 pm

1 stop8h 42m

Lambert-St Louis

Sat 9/26

11:01 am-6:54 pm

1 stop6h 53m

$263

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 10/31

10:33 am-4:51 pm

1 stop7h 18m

Lambert-St Louis

Sat 11/7

11:23 am-12:39 am

1 stop12h 16m

$263
Quickest round-trip

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 9/9

6:34 pm-9:31 pm

1 stop3h 57m

Lambert-St Louis

Thu 9/10

10:53 am-5:00 pm

1 stop5h 07m

$279

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 9/23

3:30 pm-9:15 pm

1 stop6h 45m

Lambert-St Louis

Wed 9/30

12:50 pm-8:15 pm

1 stop6h 25m

$279

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 10/31

12:45 pm-3:45 pm

1 stop4h 00m

Lambert-St Louis

Sat 11/7

5:45 am-12:20 pm

2 stops5h 35m

$284

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 11/5

5:32 am-12:50 pm

1 stop8h 18m

Lambert-St Louis

Sun 11/8

6:00 am-12:22 pm

1 stop5h 22m

$310

CincinnatiSt. Louis

CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis

CVGSTL

Cincinnati Cinci./N. Kentucky

Sun 10/11

10:50 am-3:21 pm

1 stop5h 31m

Lambert-St Louis

Mon 10/12

7:01 pm-12:07 am

1 stop4h 06m

$318

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 Cincinnati 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 typical price of a round-trip flight between Cincinnati and St. Louis?

Prices are currently low for flights on this route.

Typical prices usually range from $429 to $624.
The lowest price recently found on this route was $103.

What is the cheapest month to fly to St. Louis?

In general, January is the cheapest month to fly from Cincinnati to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $297. The month of June is another great option to travel to St. Louis, with average flight prices from Cincinnati averaging around $346.

How have Cincinnati to St. Louis flight prices changed over time?

When to book flights from Cincinnati to St. Louis

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

Cheap Cincinnati to St. Louis (CVG to STL) flight deals and tips

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

Best Price Found

$109

Fastest flight time

3h 58m

Direct flights

None
The best one-way flight to St. Louis from Cincinnati in the past 72 hours is $109. The best round-trip flight deal from Cincinnati to St. Louis found on momondo in the last 72 hours is $103.
The fastest flight from Cincinnati to St. Louis takes 3h 58m
There are no direct flights from Cincinnati to St. Louis. There are no popular flight routes from Cincinnati to St. Louis.
Search flight deals

Frequently asked questions about flying from Cincinnati to St. Louis

  • How far is Cincinnati Cinci./N. Kentucky to Lambert-St Louis by plane?

    A flight from Cincinnati Cinci./N. Kentucky to Lambert-St Louis will travel around 307.3 mi. Flights usually cover this in 3h 58m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport?

    Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport 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 Cincinnati Cinci./N. Kentucky 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 Cincinnati to St. Louis?

Best airlines flying from Cincinnati to St. Louis

Compare and see reviews for airlines that fly from Cincinnati to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $236Free CancellationRating
7.8
8,538 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.1
12,025 reviews
Search American Airlines flights
United AirlinesPriceFrom $249Free CancellationRating
7.4
10,135 reviews
Search United Airlines flights
SouthwestPriceFrom $254Free CancellationRating
8.0
4,199 reviews
Search Southwest 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
Maryland Heights
St. Peters
Hermann
Alton
Florissant
Collinsville
O'Fallon
Farmington
Clayton
Fenton
Festus
Wentzville
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cincinnati to St. Louis for you.

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

Yes. All flights to St. Louis from Cincinnati on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Cincinnati to St. Louis.

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

Of course. momondo tracks the price of Cincinnati 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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