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

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
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Find flight deals from Cincinnati to St. Louis

Cheapest flights from Cincinnati to St. Louis
Explore the most affordable flight options available from Cincinnati to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This Priceline deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:10 amCVG - STL
1 stop9h 07mFrontier
Sun 11/22:12 pmSTL - CVG
1 stop8h 59mFrontier
Deal found 10/20$144
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/410:24 amCVG - STL
1 stop23h 43mFrontier
Sat 11/87:45 pmSTL - CVG
1 stop28h 54mFrontier
Deal found 10/20$157
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:00 amCVG - STL
1 stop7h 27mFrontier
Mon 11/102:12 pmSTL - CVG
1 stop8h 59mFrontier
Deal found 10/22$170
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:30 pmCVG - STL
1 stop22h 42mFrontier
Mon 11/37:45 pmSTL - CVG
1 stop25h 23mFrontier
Deal found 10/20$177
This Priceline deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:33 pmCVG - STL
1 stop6h 00mFrontier
Mon 12/89:54 amSTL - CVG
1 stop8h 51mFrontier
Deal found 10/21$179
This Frontier deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:33 pmCVG - STL
1 stop6h 00mFrontier
Fri 12/123:30 pmSTL - CVG
1 stop6h 54mFrontier
Deal found 10/21$193
This Frontier deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:00 amCVG - STL
1 stop11h 02mFrontier
Mon 10/276:05 pmSTL - CVG
1 stop5h 37mFrontier
Deal found 10/21$208
This Kiwi.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:30 pmCVG - STL
1 stop22h 42mFrontier
Thu 10/306:22 pmSTL - CVG
2 stops45h 11mFrontier
Deal found 10/20$213

Cheap flight deals from Cincinnati to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Cincinnati (CVG) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$144
(Priceline)

One-way from

$61
(Kiwi.com)

Popular in

September

Cheapest in

August

Average price

$323
Provider with most accurate pricing for Cincinnati Cinci./N. Kentucky-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cincinnati Cinci./N. Kentucky-Lambert-St Louis flights.
Search Deals
From Cincinnati Cinci./N. Kentucky to Lambert-St Louis
Search Deals
One-way flight from Cincinnati Cinci./N. Kentucky to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cincinnati 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, Cheapflights users made 2,558,603 searches. Data last updated October 22, 2025.
Use the filters below to find and compare flights from Cincinnati to St. Louis that are best for you.

Fly from

Cincinnati

Fly to

St. Louis

Route

Depart

Return

Price

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 10/30

5:10 am-1:17 pm

1 stop9h 07m

Lambert-St Louis

Sun 11/2

2:12 pm-12:11 am

1 stop8h 59m

$144

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 11/6

11:00 am-5:27 pm

1 stop7h 27m

Lambert-St Louis

Fri 11/7

2:12 pm-12:11 am

1 stop8h 59m

$144

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 11/4

10:24 am-9:07 am

1 stop23h 43m

Lambert-St Louis

Sat 11/8

7:45 pm-1:39 am

1 stop28h 54m

$157

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 11/10

5:10 am-1:17 pm

1 stop9h 07m

Lambert-St Louis

Thu 11/13

2:12 pm-12:11 am

1 stop8h 59m

$170

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Fri 12/5

5:33 pm-10:33 pm

1 stop6h 00m

Lambert-St Louis

Mon 12/8

9:54 am-7:45 pm

1 stop8h 51m

$179

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Fri 12/5

5:33 pm-10:33 pm

1 stop6h 00m

Lambert-St Louis

Fri 12/12

3:30 pm-11:24 pm

1 stop6h 54m

$193

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 12/6

11:57 am-9:47 am

2 stops22h 50m

Lambert-St Louis

Sat 12/13

7:43 pm-7:32 pm

1 stop22h 49m

$198

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 10/25

8:00 am-3:38 pm

1 stop8h 38m

Lambert-St Louis

Mon 10/27

6:05 pm-12:42 am

1 stop5h 37m

$208

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 1/17

1:50 pm-4:55 pm

1 stop4h 05m

Lambert-St Louis

Sat 1/24

10:00 am-5:22 pm

1 stop6h 22m

$209

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 1/17

8:28 am-3:04 pm

1 stop7h 36m

Lambert-St Louis

Sat 1/24

1:40 pm-11:45 pm

2 stops9h 05m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 17 results
1
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Compare providers for flights from Cincinnati to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cincinnati to St. Louis in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Cincinnati-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cincinnati-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cincinnati-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cincinnati-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cincinnati-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Cincinnati to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Cincinnati with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Cincinnati to St. Louis

What is the cheapest month to book a flight from Cincinnati to St. Louis?

Currently, October is the cheapest month in which you can book a flight from Cincinnati to St. Louis (average of $85). Flying from Cincinnati to St. Louis in April is currently the most expensive (average of $273). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CVG to STL?

Find hourly flight availability from Cincinnati to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 22, 2025.

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 evening, which can drop the price by up to 27% versus a flight in the afternoon.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated October 22, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Cincinnati to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,237 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,237 reviews
Southwest
8.0
Very good
4,237 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,981 reviews
Southwest
8.0
Very good
4,237 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,990 reviews
Southwest
8.0
Very good
4,237 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,028 reviews
Southwest
8.0
Very good
4,237 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,129 reviews
Southwest
8.0
Very good
4,237 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Cincinnati to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Cincinnati to St. Louis?

    A quick flight from Cincinnati to St. Louis can take about 9h 07m. Frontier provides one of the quickest options available for as low as $144. There are 307 mi between Cincinnati and St. Louis.

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

    Currently priced at $85, 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 American Airlines and Delta - these airlines can fly you to your destination from $218 and $236, respectively. Frontier is priced at 77% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Cincinnati to St. Louis that include hotel bookings?

    Yes. In addition to deals on Cincinnati to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cincinnati to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cincinnati to St. Louis.

  • Can I find deals for business class flights from Cincinnati to St. Louis?

    Yes. Cheapflights offers flight deals from Cincinnati to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cincinnati to St. Louis?

    Currently, October is the cheapest month in which you can book a flight from Cincinnati to St. Louis (average of $85). Flying from Cincinnati to St. Louis in April is currently the most expensive (average of $273). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Cincinnati to St. Louis

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Top 5 airlines flying from Cincinnati to St. Louis

Discover the top 5 airlines that operate flights from Cincinnati to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$85Average$200FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$218Average$321FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$487FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$254Average$332FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$262Average$361FlexibilityNo cancel feeOn-time69%

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