Cheap flights from Cincinnati to St. Louis (CVG - STL) from $61

This is the cheapest one-way flight price, found on 9/19. Prices may vary by date and flight preferences.
CVG — STL
Sep 25 — Oct 21

The best prices from Cincinnati Cinci./N. Kentucky to Lambert-St Louis are usually found in February or August, booked 60 days in advance, depart on a Wednesday or Tuesday and return on a Monday

How to find the cheapest flight from Cincinnati (CVG) to St. Louis (STL)

All the information you need to plan the best CVG to STL flight in 2023: compare Cincinnati to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.

Popular in

May

Cheapest in

February

Round-trip from

$299

One-way from

$78
High demand for flights, 28% potential price rise
Best time to find cheap flights, 36% potential price drop
From Cincinnati Cinci./N. Kentucky to Lambert-St Louis
One-way flight from Cincinnati Cinci./N. Kentucky to Lambert-St Louis

CVG - STL

Price

$299 - $477

STL

Temperature

32 - 80.6 °F

STL

Rainfall

2.2 - 4.7 inches

What is the cheapest day to fly round-trip from Cincinnati to St. Louis?

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 61% on the overall cost on flights from Cincinnati to St. Louis.

How far in advance should I book a flight from Cincinnati to St. Louis?

To save on the cost of your flight from Cincinnati to St. Louis, book at least 61 days before your planned departure. Booking around this time can save you about 15% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $380 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $417.

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

Flights from Cincinnati to St. Louis lean towards being more expensive in May. Prices are generally better when you fly from Cincinnati to St. Louis in February, with the cheapest ticket starting at $165.

When is the cheapest time to fly from Cincinnati to St. Louis (CVG - STL)?

When flying from Cincinnati to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 46% versus a flight at noon.

Cheap Delta flights from Cincinnati to St. Louis

Consider these cheap Delta flights we've found departing from Cincinnati to St. Louis. Deals update often to give you more flight options matching your criteria

Cheap American Airlines flights from Cincinnati to St. Louis

Some of the lowest-priced American Airlines flights we've found at this time heading from Cincinnati to St. Louis. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Cincinnati to St. Louis flights in September & October 2023

The best prices found for CVG to STL flights for September, October
These are some of the best deals we've found on flights to St. Louis in 2023 at this time. Check back regularly for other flight deals.

Cincinnati to St. Louis 2023 flight deals

Cheap flights to St. Louis from Cincinnati found for this year
These are some of the best deals we've found on flights to St. Louis in 2023 at this time. Check back regularly for other flight deals.

Cincinnati to St. Louis flights leaving soon

Late deals on return flights to St. Louis from Cincinnati, departing today and this week
Book one of these great deals on flights from Cincinnati to St. Louis. Tip: verify your flight details before completing your reservation.

One-way flights to St. Louis from Cincinnati

The cheapest one-way flights from Cincinnati to St. Louis
Users in need of a one-way flight from Cincinnati to St. Louis can choose from these deals. Users in need of a round-trip flight from Cincinnati to St. Louis instead should update the search form at the top of page.

Find flights from Cincinnati to St. Louis within your budget

Use the slider to find flights from Cincinnati to St. Louis that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$126 - $448

Route

Depart

Return

Price

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 10/10

1 stop20h 06m

Lambert-St Louis

Wed 10/11

1 stop14h 05m

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 12/4

1 stop6h 10m

Lambert-St Louis

Wed 12/6

1 stop7h 03m

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 11/2

1 stop9h 47m

Lambert-St Louis

Fri 11/3

1 stop8h 17m

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 10/9

1 stop9h 19m

Lambert-St Louis

Thu 10/12

1 stop10h 40m

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 10/3

1 stop8h 39m

Lambert-St Louis

Fri 10/6

1 stop11h 51m

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 11/14

1 stop16h 00m

Lambert-St Louis

Thu 11/16

1 stop13h 36m

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 11/22

1 stop5h 18m

Lambert-St Louis

Fri 11/24

1 stop4h 56m

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 11/22

1 stop7h 22m

Lambert-St Louis

Fri 11/24

2 stops8h 05m

Cincinnati Cinci./N. KentuckyLambert-St Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Fri 10/13

2 stops21h 00m

Lambert-St Louis

Sun 10/15

1 stop5h 24m

Flights are sorted by cheapest first

Deals found on 9/19

Reviews of airlines servicing St. Louis

To help decide which airline to fly from Cincinnati to St. Louis, see what other customers have to say about Delta, American Airlines and Frontier. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
3,016 reviews

Crew

8.5

Boarding

8.0

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 10

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.

Delta
7.9
Good
3,016 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Boarding

8.0

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 10

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.

United Airlines
7.4
Good
1,887 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Boarding

8.0

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 10

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.

American Airlines
7.2
Good
2,635 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Boarding

8.0

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 10

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.

Frontier
5.8
Fair
762 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Boarding

8.0

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Reviews

1 / 10

This was the worst flying experience of my life. Every step of the way I was given the wrong information and/or mocked by the KLM employees. Never flying this airline again.

Related info for your journey

Useful info, stats and facts about Cincinnati to St. Louis flights.

Can I find flights from Cincinnati to St. Louis for under $200 on Cheapflights?

Yes, there are multiple flights from Cincinnati to St. Louis for under $200. The cheapest flight booked recently is on Multiple Airlines for just $126, but on average you can expect to pay $273.

Are there last-minute flights available from Cincinnati to St. Louis for under $300?

There are currently 6+ open flights from Cincinnati to St. Louis within the next 7 days for less than $300.

What are the cheapest airlines flying from Cincinnati to St. Louis round-trip?

Currently priced at $160, Frontier will fly you from Cincinnati to St. Louis and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and American Airlines - these airlines can fly you to your destination from $260 and $277, respectively. Frontier is priced at 59% lower than the current average price of a flight leaving 3 months from now.

What are the most popular airlines that fly from Cincinnati to St. Louis?

What does CVG to STL mean?

Great question - CVG to STL just means Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport. Now you’ll know what these unique codes when you look for flights!

Top 4 airlines flying from Cincinnati to St. Louis

The chart below displays the airlines Cheapflights users traveling from Cincinnati to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$165Average$185FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapest$221Average$413FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$255Average$396FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$265Average$457FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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