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$86+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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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 April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$180
(Booking.com)

One-way from

$86
(Frontier)

Popular in

November

Cheapest in

July

Average price

$409
Provider with most accurate pricing for Cincinnati Cinci./N. Kentucky-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Cincinnati Cinci./N. Kentucky-Lambert-St Louis flights.
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From Cincinnati Cinci./N. Kentucky to Lambert-St Louis
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One-way flight from Cincinnati Cinci./N. Kentucky to Lambert-St Louis
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Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 29, 2025.

This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1312:57 pmCVG - STL
1 stop12h 09mFrontier
Tue 5/205:45 pmSTL - CVG
1 stop23h 49mFrontier
Deal found 4/29$180
This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/95:56 pmCVG - STL
1 stop5h 49mUnited Airlines
Tue 6/1011:20 amSTL - CVG
1 stop4h 36mUnited Airlines
Deal found 4/29$242
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/24:50 pmCVG - STL
1 stop6h 55mSouthwest
Wed 6/412:50 pmSTL - CVG
2 stops8h 45mSouthwest
Deal found 4/28$247
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/214:00 pmCVG - STL
1 stop5h 30mDelta
Sun 6/295:23 pmSTL - CVG
1 stop5h 54mDelta
Deal found 4/28$279
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1612:17 pmCVG - STL
2 stops21h 58mMultiple Airlines
Sun 5/187:30 amSTL - CVG
1 stop10h 52mMultiple Airlines
Deal found 4/29$345
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/285:17 pmCVG - STL
1 stop6h 11mAmerican Airlines
Tue 4/299:52 amSTL - CVG
1 stop4h 57mAmerican Airlines
Deal found 4/28$578

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 April 29, 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

Tue 5/13

12:57 pm-12:06 am

1 stop12h 09m

Lambert-St Louis

Tue 5/20

5:45 pm-6:34 pm

1 stop23h 49m

$180

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 6/9

5:56 pm-10:45 pm

1 stop5h 49m

Lambert-St Louis

Tue 6/10

11:20 am-4:56 pm

1 stop4h 36m

$242

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 6/2

4:50 pm-10:45 pm

1 stop6h 55m

Lambert-St Louis

Wed 6/4

12:50 pm-10:35 pm

2 stops8h 45m

$247

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 6/21

6:50 pm-11:51 pm

1 stop6h 01m

Lambert-St Louis

Sun 6/29

5:23 pm-12:17 am

1 stop5h 54m

$279

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Fri 5/16

12:17 pm-9:15 am

2 stops21h 58m

Lambert-St Louis

Sun 5/18

7:30 am-7:22 pm

1 stop10h 52m

$345

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 5/20

2:55 pm-11:44 pm

1 stop9h 49m

$86

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 6/4

1:48 pm-9:15 am

1 stop20h 27m

$107

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Tue 6/3

6:00 am-9:00 am

1 stop4h 00m

$115

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 5/21

1:10 pm-7:55 pm

2 stops7h 45m

$120

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 5/10

7:45 pm-3:47 pm

3 stops21h 02m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 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 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, August is the cheapest month in which you can book a flight from Cincinnati to St. Louis (average of $311). Flying from Cincinnati to St. Louis in March is currently the most expensive (average of $356). 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 April 29, 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 28% versus a flight in the afternoon.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

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.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

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).

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 April 29, 2025.
To help decide which airline to fly from Cincinnati to St. Louis, see what other customers have to say about Southwest, Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,929 reviews
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Frontier
6.0
Okay
3,284 reviews
Southwest
8.0
Very good
4,295 reviews

Food

7.1

Boarding

8.2

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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.

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

    Currently priced at $180, 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 United Airlines and Southwest - these airlines can fly you to your destination from $242 and $247, respectively. Frontier is priced at 47% 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 ($86), Delta ($115), and Southwest ($120).

  • 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, August is the cheapest month in which you can book a flight from Cincinnati to St. Louis (average of $311). Flying from Cincinnati to St. Louis in March is currently the most expensive (average of $356). 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 Cincinnati?

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

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Top 4 airlines flying from Cincinnati to St. Louis

Discover the top 4 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$231Average$422FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$236Average$335FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$245Average$336FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$297Average$336FlexibilityNo cancel feeOn-time63%

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