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

A quick flight from Cincinnati to St. Louis can take about 6h 54m. Frontier provides one of the quickest options available for as low as $200. 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 76% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Cincinnati to St. Louis one-way?

The cheapest airlines for a one-way flight from Cincinnati to St. Louis are Frontier ($75), Delta ($87), and Southwest ($88).

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

Before booking your flight from Cincinnati to St. Louis check out the most popular airlines for this route: American Airlines, Delta or United Airlines.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Cincinnati to St. Louis as you normally would.

Most accurate provider : When it comes to deals on Cincinnati-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Cincinnati-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$60+ Flights from Cincinnati to St. Louis

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Cheap flight deals from Cincinnati to St. Louis

Best flights from Cincinnati to St. Louis
Discover carefully curated flight deals from Cincinnati to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2025.

Thu 1/2910:15 amCVG - STL

1 stop11h 51mMultiple Airlines

Sat 1/3112:12 pmSTL - CVG

1 stop9h 08mMultiple Airlines

Deal found 12/31

$187

Thu 1/225:39 pmCVG - STL

1 stop6h 54mFrontier

Mon 1/2610:16 amSTL - CVG

1 stop12h 10mFrontier

Deal found 12/28

$200

Sat 1/175:11 pmCVG - STL

1 stop7h 15mAmerican Airlines

Sat 1/248:13 amSTL - CVG

1 stop7h 28mAmerican Airlines

Deal found 12/29

$243

Sat 1/176:00 pmCVG - STL

1 stop6h 39mDelta

Sat 1/246:00 amSTL - CVG

1 stop6h 20mDelta

Deal found 12/31

$243

Tue 3/33:20 pmCVG - STL

1 stop8h 07mFrontier

Fri 3/64:51 pmSTL - CVG

1 stop6h 50mFrontier

Deal found 12/30

$205

Mon 1/196:55 amCVG - STL

1 stop12h 56mFrontier

Tue 1/205:42 pmSTL - CVG

1 stop20h 21mFrontier

Deal found 12/29

$220

Sat 2/143:20 pmCVG - STL

1 stop9h 39mFrontier

Sun 2/153:49 pmSTL - CVG

1 stop8h 10mFrontier

Deal found 12/30

$247

Last-minute flights from Cincinnati to St. Louis
Discover last-minute flight deals from Cincinnati to St. Louis. Data last updated December 31, 2025 and is based on user searches.

Mon 1/52:23 pmCVG - STL

1 stop21h 33mMultiple Airlines

Mon 1/125:11 pmSTL - CVG

1 stop23h 37mMultiple Airlines

Deal found 12/28

$267

Wed 1/73:49 pmCVG - STL

1 stop7h 44mFrontier

Tue 1/135:11 pmSTL - CVG

1 stop23h 37mFrontier

Deal found 12/28

$281

Mon 1/1211:57 amCVG - STL

1 stop11h 36mMultiple Airlines

Thu 1/155:11 pmSTL - CVG

2 stops19h 49mMultiple Airlines

Deal found 12/29

$322

Sat 1/176:00 pmCVG - STL

1 stop6h 39mDelta

Sat 1/246:00 amSTL - CVG

1 stop6h 20mDelta

Deal found 12/31

$243

Sat 1/174:15 pmCVG - STL

1 stop7h 29mAmerican Airlines

Sat 1/241:40 pmSTL - CVG

2 stops9h 05mAmerican Airlines

Deal found 12/31

$248

Mon 1/196:55 amCVG - STL

1 stop12h 56mFrontier

Tue 1/205:42 pmSTL - CVG

1 stop20h 21mFrontier

Deal found 12/29

$220

Thu 1/225:39 pmCVG - STL

1 stop6h 54mFrontier

Mon 1/261:40 pmSTL - CVG

1 stop6h 13mFrontier

Deal found 12/29

$200

Thu 1/2910:15 amCVG - STL

1 stop11h 51mMultiple Airlines

Sat 1/3112:12 pmSTL - CVG

1 stop9h 08mMultiple Airlines

Deal found 12/31

$187

Thu 1/291:35 pmCVG - STL

2 stops8h 25mSouthwest

Sat 1/3110:30 amSTL - CVG

2 stops8h 35mSouthwest

Deal found 12/31

$309

One-way flights from Cincinnati to St. Louis
Search for one-way flight options from Cincinnati to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 31, 2025.

Tue 2/34:23 pmCVG - STL

1 stop8h 10mFrontier

Deal found 12/29

$60

Wed 3/48:15 amCVG - STL

1 stop15h 12mFrontier

Deal found 12/30

$63

Wed 1/214:23 pmCVG - STL

1 stop8h 10mFrontier

Deal found 12/29

$67

Mon 2/95:39 pmCVG - STL

1 stop6h 54mFrontier

Deal found 12/30

$68

Tue 1/274:23 pmCVG - STL

1 stop8h 10mFrontier

Deal found 12/30

$72

Tue 2/243:20 pmCVG - STL

1 stop8h 07mFrontier

Deal found 12/31

$73

Mon 2/237:14 pmCVG - STL

1 stop28h 13mFrontier

Deal found 12/31

$75

Sat 2/712:30 pmCVG - STL

1 stop12h 03mFrontier

Deal found 12/29

$76

Sun 2/11:45 pmCVG - STL

1 stop24h 05mFrontier

Deal found 12/31

$77

Sat 2/283:20 pmCVG - STL

1 stop9h 39mFrontier

Deal found 12/29

$78

Tue 3/177:41 pmCVG - STL

1 stop15h 56mFrontier

Deal found 12/29

$79

Find flight deals from Cincinnati to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$200 (Frontier)
One-way from	$60 (Trip.com)
Popular in	September
Cheapest in	August
Average price	$416

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. 2% potential increase in price ($10 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights 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

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 1/29

10:15 am-9:06 pm

1 stop11h 51m

Lambert-St Louis

Sat 1/31

12:12 pm-10:20 pm

1 stop9h 08m

$187

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 1/22

5:39 pm-11:33 pm

1 stop6h 54m

Lambert-St Louis

Mon 1/26

10:16 am-11:26 pm

1 stop12h 10m

$200

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 3/3

3:20 pm-10:27 pm

1 stop8h 07m

Lambert-St Louis

Fri 3/6

4:51 pm-12:41 am

1 stop6h 50m

$205

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 1/19

6:55 am-6:51 pm

1 stop12h 56m

Lambert-St Louis

Tue 1/20

5:42 pm-3:03 pm

1 stop20h 21m

$220

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 1/17

5:11 pm-11:26 pm

1 stop7h 15m

Lambert-St Louis

Sat 1/24

8:13 am-4:41 pm

1 stop7h 28m

$243

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 1/17

6:00 pm-11:39 pm

1 stop6h 39m

Lambert-St Louis

Sat 1/24

6:00 am-1:20 pm

1 stop6h 20m

$243

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 2/14

3:20 pm-11:59 pm

1 stop9h 39m

Lambert-St Louis

Sun 2/15

3:49 pm-12:59 am

1 stop8h 10m

$247

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 3/3

8:15 am-10:27 pm

1 stop15h 12m

$63

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 2/25

3:20 pm-10:27 pm

1 stop8h 07m

$68

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 2/26

12:17 pm-11:59 pm

1 stop12h 42m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 19 results

Compare providers for flights from Cincinnati to St. Louis

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Cincinnati-St. Louis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Reviews of airlines servicing St. Louis

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

4,251 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

8.0

Very good

4,251 reviews

Southwest

8.0

Very good

4,251 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,013 reviews

Southwest

8.0

Very good

4,251 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,124 reviews

Southwest

8.0

Very good

4,251 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,074 reviews

Southwest

8.0

Very good

4,251 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.7

Fair

3,069 reviews

Southwest

8.0

Very good

4,251 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

How long is the flight from Cincinnati to St. Louis?
A quick flight from Cincinnati to St. Louis can take about 6h 54m. Frontier provides one of the quickest options available for as low as $200. 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 76% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Cincinnati to St. Louis one-way?
The cheapest airlines for a one-way flight from Cincinnati to St. Louis are Frontier ($75), Delta ($87), and Southwest ($88).
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

Edwardsville

O'Fallon

Swansea

Fairview Heights

Maryland Heights

Collinsville

Eureka

Glencoe

Chesterfield

Alton

Farmington

Festus

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Cincinnati to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$85	Average$275	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$218	Average$289	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$236	Average$476	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$254	Average$336	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$262	Average$367	FlexibilityNo cancel fee	On-time69%

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$60+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Cincinnati to St. Louis with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheap flight deals from Cincinnati to St. Louis

Best flights from Cincinnati to St. LouisDiscover carefully curated flight deals from Cincinnati to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2025.

Discover carefully curated flight deals from Cincinnati to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2025.

Find flight deals from Cincinnati to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

Reviews of airlines servicing St. Louis

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.

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?

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

What are the cheapest airlines to fly from Cincinnati to St. Louis one-way?

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

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

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

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

Traveling to a place near St. Louis?

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Alternative routes for Cincinnati to St. Louis

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Top 5 airlines flying from Cincinnati to St. Louis

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Best flights from Cincinnati to St. Louis
Discover carefully curated flight deals from Cincinnati to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2025.