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

A quick flight from Cincinnati to St. Louis can take about 26h 29m. Frontier provides one of the quickest options available for as low as $154. 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.

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.

$63+ Flights from Cincinnati to St. Louis

Q: How much does it cost to fly round-trip from Cincinnati to St. Louis?

Airfare is below average for this route at the moment. Cincinnati to St. Louis flights typically cost between $326 and $426 in January. The cheapest round-trip price found within the last 3 days was $154 on Frontier (Jan 12-Jan 21).

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Cheap 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 December 18, 2025.

Tue 12/236:10 amCVG - STL

1 stop28h 52mFrontier

Sun 1/410:57 amSTL - CVG

1 stop7h 21mFrontier

Deal found 12/16

$248

Sun 12/217:16 pmCVG - STL

1 stop15h 46mFrontier

Wed 12/314:27 pmSTL - CVG

1 stop7h 39mFrontier

Deal found 12/15

$292

Tue 12/1611:57 amCVG - STL

1 stop11h 36mFrontier

Mon 12/2210:40 amSTL - CVG

1 stop8h 41mFrontier

Deal found 12/15

$293

Sun 12/217:16 pmCVG - STL

1 stop15h 46mFrontier

Mon 12/224:27 pmSTL - CVG

1 stop17h 25mFrontier

Deal found 12/15

$298

Wed 12/319:57 amCVG - STL

2 stops24h 43mFrontier

Sun 1/410:57 amSTL - CVG

1 stop7h 21mFrontier

Deal found 12/16

$310

Sun 12/216:00 amCVG - STL

1 stop27h 12mFrontier

Tue 12/2310:48 amSTL - CVG

1 stop7h 30mFrontier

Deal found 12/15

$327

Fri 12/195:10 amCVG - STL

1 stop15h 32mFrontier

Sun 12/2110:57 amSTL - CVG

1 stop7h 21mFrontier

Deal found 12/15

$332

Tue 12/308:40 amCVG - STL

1 stop4h 41mDelta

Thu 1/16:29 amSTL - CVG

1 stop4h 04mDelta

Deal found 12/16

$334

Sun 12/217:16 pmCVG - STL

1 stop15h 46mFrontier

Fri 1/29:07 amSTL - CVG

1 stop11h 55mFrontier

Deal found 12/15

$347

Sun 12/217:16 pmCVG - STL

1 stop15h 46mFrontier

Thu 1/110:42 amSTL - CVG

1 stop7h 36mFrontier

Deal found 12/15

$377

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 18, 2025.

Mon 1/129:05 pmCVG - STL

1 stop26h 29mFrontier

Wed 1/215:42 pmSTL - CVG

1 stop18h 18mFrontier

Deal found 12/17

$154

Tue 1/274:23 pmCVG - STL

1 stop8h 10mMultiple Airlines

Wed 1/288:22 pmSTL - CVG

2 stops16h 55mMultiple Airlines

Deal found 12/17

$199

Mon 1/121:35 pmCVG - STL

2 stops8h 25mSouthwest

Wed 1/2111:35 amSTL - CVG

2 stops9h 50mSouthwest

Deal found 12/17

$281

Sat 1/172:27 pmCVG - STL

1 stop9h 07mFrontier

Sat 1/2412:12 pmSTL - CVG

1 stop9h 08mFrontier

Deal found 12/17

$202

Thu 1/159:30 pmCVG - STL

1 stop10h 21mFrontier

Thu 1/225:42 pmSTL - CVG

1 stop28h 44mFrontier

Deal found 12/16

$203

Sat 2/143:20 pmCVG - STL

1 stop9h 39mFrontier

Fri 2/203:49 pmSTL - CVG

1 stop8h 10mFrontier

Deal found 12/15

$218

Tue 1/61:40 pmCVG - STL

2 stops8h 20mSouthwest

Sat 1/108:40 amSTL - CVG

2 stops11h 05mSouthwest

Deal found 12/16

$287

Thu 1/155:45 amCVG - STL

2 stops9h 25mSouthwest

Thu 1/2211:35 amSTL - CVG

2 stops9h 50mSouthwest

Deal found 12/16

$291

Wed 12/3111:57 amCVG - STL

1 stop11h 36mFrontier

Sun 1/410:57 amSTL - CVG

1 stop7h 21mFrontier

Deal found 12/16

$317

Last-minute flights from Cincinnati to St. Louis
Discover last-minute flight deals from Cincinnati to St. Louis. Data last updated December 18, 2025 and is based on user searches.

Tue 1/66:05 pmCVG - STL

1 stop29h 28mFrontier

Sat 1/107:43 pmSTL - CVG

1 stop16h 30mFrontier

Deal found 12/16

$190

Thu 1/89:05 pmCVG - STL

1 stop11h 45mFrontier

Sun 1/119:46 pmSTL - CVG

1 stop25h 08mFrontier

Deal found 12/16

$191

Mon 1/129:05 pmCVG - STL

1 stop26h 29mFrontier

Wed 1/215:42 pmSTL - CVG

1 stop18h 18mFrontier

Deal found 12/17

$154

Mon 1/129:26 pmCVG - STL

2 stops34h 25mMultiple Airlines

Wed 1/215:42 pmSTL - CVG

1 stop18h 18mMultiple Airlines

Deal found 12/17

$170

Thu 1/158:30 amCVG - STL

2 stops15h 04mMultiple Airlines

Thu 1/225:42 pmSTL - CVG

1 stop18h 18mMultiple Airlines

Deal found 12/16

$186

Thu 1/159:30 pmCVG - STL

1 stop10h 21mFrontier

Thu 1/225:42 pmSTL - CVG

1 stop28h 44mFrontier

Deal found 12/16

$203

Sat 1/172:27 pmCVG - STL

1 stop9h 07mFrontier

Sat 1/2412:12 pmSTL - CVG

1 stop9h 08mFrontier

Deal found 12/17

$202

Tue 1/274:23 pmCVG - STL

1 stop8h 10mFrontier

Wed 1/288:22 pmSTL - CVG

1 stop14h 33mFrontier

Deal found 12/17

$178

Tue 1/274:23 pmCVG - STL

1 stop8h 10mMultiple Airlines

Wed 1/288:22 pmSTL - CVG

2 stops16h 55mMultiple Airlines

Deal found 12/17

$199

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 18, 2025.

Wed 1/214:23 pmCVG - STL

1 stop8h 10mFrontier

Deal found 12/16

$63

Tue 2/103:20 pmCVG - STL

1 stop8h 07mFrontier

Deal found 12/16

$64

Mon 2/237:14 pmCVG - STL

1 stop28h 13mFrontier

Deal found 12/16

$68

Sun 1/2510:30 amCVG - STL

1 stop23h 51mFrontier

Deal found 12/16

$74

Fri 1/237:00 amCVG - STL

1 stop17h 33mFrontier

Deal found 12/17

$78

Tue 1/1311:54 amCVG - STL

1 stop11h 40mFrontier

Deal found 12/15

$79

Mon 1/129:05 pmCVG - STL

1 stop26h 29mFrontier

Deal found 12/15

$80

Tue 1/204:23 pmCVG - STL

1 stop8h 10mFrontier

Deal found 12/16

$81

Tue 1/63:49 pmCVG - STL

1 stop7h 44mFrontier

Deal found 12/16

$82

Fri 1/301:45 pmCVG - STL

1 stop26h 01mFrontier

Deal found 12/16

$85

Wed 1/76:05 pmCVG - STL

1 stop29h 28mFrontier

Deal found 12/16

$86

Thu 1/89:05 pmCVG - STL

1 stop11h 45mFrontier

Deal found 12/15

$87

Find flight deals from Cincinnati to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$154 (Kiwi.com)
One-way from	$63 (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

Mon 1/12

9:05 pm-10:34 pm

1 stop26h 29m

Lambert-St Louis

Wed 1/21

5:42 pm-1:00 pm

1 stop18h 18m

$154

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 1/27

4:23 pm-11:33 pm

1 stop8h 10m

Lambert-St Louis

Wed 1/28

8:22 pm-2:17 pm

2 stops16h 55m

$199

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 1/17

2:27 pm-10:34 pm

1 stop9h 07m

Lambert-St Louis

Sat 1/24

12:12 pm-10:20 pm

1 stop9h 08m

$202

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 1/15

9:30 pm-6:51 am

1 stop10h 21m

Lambert-St Louis

Thu 1/22

5:42 pm-11:26 pm

1 stop28h 44m

$203

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 2/14

3:20 pm-11:59 pm

1 stop9h 39m

Lambert-St Louis

Fri 2/20

3:49 pm-12:59 am

1 stop8h 10m

$218

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 1/12

1:35 pm-9:00 pm

2 stops8h 25m

Lambert-St Louis

Wed 1/21

11:35 am-10:25 pm

2 stops9h 50m

$281

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 1/6

1:40 pm-9:00 pm

2 stops8h 20m

Lambert-St Louis

Sat 1/10

8:40 am-8:45 pm

2 stops11h 05m

$287

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 1/15

5:45 am-2:10 pm

2 stops9h 25m

Lambert-St Louis

Thu 1/22

11:35 am-10:25 pm

2 stops9h 50m

$291

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 12/31

11:57 am-10:33 pm

1 stop11h 36m

Lambert-St Louis

Sun 1/4

10:57 am-7:18 pm

1 stop7h 21m

$317

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 12/24

5:49 pm-8:41 pm

1 stop3h 52m

$115

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 20 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.

What is the cheapest time of day to fly from CVG to 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 evening, which can drop the price by up to 27% versus a flight in the afternoon.

How much does it cost to fly round-trip 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.

Southwest

7.9

Good

4,250 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

7.9

Good

4,250 reviews

Southwest

7.9

Good

4,250 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

8,005 reviews

Southwest

7.9

Good

4,250 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

9,091 reviews

Southwest

7.9

Good

4,250 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

11,054 reviews

Southwest

7.9

Good

4,250 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

5.8

Fair

3,081 reviews

Southwest

7.9

Good

4,250 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 26h 29m. Frontier provides one of the quickest options available for as low as $154. 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

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Other flights to St. Louis

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$472	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$254	Average$332	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$262	Average$367	FlexibilityNo cancel fee	On-time69%

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$63+ 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 1/21. 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

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Cheap flight deals from Cincinnati to St. Louis

Cheapest flights from Cincinnati to St. LouisExplore 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 December 18, 2025.

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 December 18, 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?

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

How much does it cost to fly round-trip 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?

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Cincinnati to St. Louis

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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 December 18, 2025.