CVG - STL

$94 Find Cheap Flights from Cincinnati to St. Louis - Compare and Save

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Everything you should know

Cheapest round-trip
$131
Typical prices: $320-$398
Frontier
Sat 12/1Tue 12/4
CVG - STL • 1 stop
Cheapest one-way
$94
Typical prices: $205-$338
Frontier
Sun 11/18
CVG - STL • 1 stop
Nonstop flights
There are currently no direct flights between Cincinnati and St. Louis. You'll need to take a connecting flight to reach the destination.
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When to travel
Cheapest • 19% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $304 (round-trip)
Shortest trip • 3h 42m (one-way)
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Insights
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Flight Deals

Cheap Flights from Cincinnati to St. Louis (CVG-STL)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cincinnati to St. Louis

Tue, Dec 1 - Fri, Dec 4
Frontier Logo
4:44 pm - 11:10 amCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
19h 26m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:02 pm - 8:23 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
7h 21m1 stop Atlanta Hartsfield-Jackson
$131Frontier
Fri, Nov 27 - Fri, Dec 4
Frontier Logo
9:28 am - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
9h 12m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:02 pm - 8:23 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
7h 21m1 stop Atlanta Hartsfield-Jackson
$156Frontier
Wed, Nov 25 - Wed, Dec 2
Southwest Logo
6:35 pm - 8:45 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
3h 10m1 stop Nashville Intl
Southwest Logo
10:30 am - 8:30 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
9h 00m2 stops Nashville Intl Chicago Midway
$252Southwest
Thu, Dec 17 - Sat, Dec 19
Delta Logo
8:00 am - 1:30 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
6h 30m1 stop Detroit Metropolitan Wayne County
Delta Logo
7:15 pm - 12:31 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
4h 16m1 stop Atlanta Hartsfield-Jackson
$271Delta
Thu, Dec 17 - Sat, Dec 19
Southwest Logo
6:50 am - 2:05 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
8h 15m2 stops Nashville Intl Atlanta Hartsfield-Jackson
Southwest Logo
5:30 am - 9:55 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
3h 25m1 stop Chicago Midway
$276Southwest
Mon, Dec 21 - Wed, Dec 30
United Airlines Logo
6:28 pm - 11:38 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
6h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
9:35 am - 3:35 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
5h 00m1 stop Chicago O'Hare Intl
$295United Airlines
Mon, Dec 21 - Thu, Dec 31
United Airlines Logo
6:28 pm - 11:38 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
6h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
7:18 am - 12:52 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
4h 34m1 stop Chicago O'Hare Intl
$295United Airlines
Sun, Jan 24 - Thu, Jan 28
Delta Logo
7:04 pm - 11:26 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
5h 22m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 12:32 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
5h 32m1 stop Atlanta Hartsfield-Jackson
$313Delta
Sat, Dec 12 - Sun, Dec 13
American Airlines Logo
9:15 pm - 12:02 amCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
3h 47m1 stop Chicago O'Hare Intl
American Airlines Logo
8:24 pm - 12:54 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
3h 30m1 stop Chicago O'Hare Intl
$326American Airlines
Sun, Jan 24 - Thu, Jan 28
American Airlines Logo
8:20 pm - 11:57 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
4h 37m1 stop Chicago O'Hare Intl
American Airlines Logo
5:05 am - 12:34 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
6h 29m1 stop Chicago O'Hare Intl
$326American Airlines
Booking Insights

Price, demand and travel trends for Cincinnati to St. Louis flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Cincinnati to St. Louis?

Round-trip flights from Cincinnati to St. Louis typically range from $320 to $398. The lowest price found in the past 5 days was $131, on Frontier.

What's the cheapest day of the week to fly from Cincinnati to St. Louis?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Cincinnati to St. Louis. It’s 7% cheaper than the average day, while Monday is the most expensive, with prices 52% higher.

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

•January is the cheapest month to fly from Cincinnati to St. Louis at $297 round-trip.
•February ($521) and March ($517) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 75% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Key details for Cincinnati to St. Louis flights

Low season

October

Cheapest flight

$94
Beat the crowds with an average 63% drop in travelers.
The most popular month to fly with an average 85% increase in travelers.
One-way flight from Cincinnati to St. Louis

When to book flights from Cincinnati to St. Louis

Are your dates flexible? Find out the best times to travel from Cincinnati to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Cincinnati to St. Louis flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Cincinnati to St. Louis?

    Two cabin classes are available on flights from Cincinnati to St. Louis:

    • Economy Class
    • First Class

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

    A nonstop flight from Cincinnati to St. Louis takes 00m, covering 307 miles.

  • Do I need a passport to fly from Cincinnati to St. Louis?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Cincinnati to St. Louis flight?

    Round-trip flights from Cincinnati to St. Louis range from $320 to $398, with an average of $365 over the past 12 months. Anything below $320 counts as a good deal.

  • Have flight prices from Cincinnati to St. Louis changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $131 to $1,171. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Cincinnati to St. Louis looking right now?

    One-way fares from Cincinnati to St. Louis are currently lower than usual. Average one-way flight prices are about $181, which is 32% below the typical average for this route.

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $78 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

  • Which airports can I use when flying from Cincinnati to St. Louis?

    Flights from Cincinnati to St. Louis usually depart from Cincinnati Cinci./N. Kentucky (CVG) and arrive at Lambert-St Louis (STL).

  • Which airports do connecting flights from Cincinnati to St. Louis pass through?

    One-stop flights from Cincinnati to St. Louis most commonly connect through:

    • Chicago O'Hare Intl (ORD) - 72% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 9% of one-stop connections
    • Chicago Midway (MDW) - 9% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 6% of one-stop connections

  • Can I save money by using flexible dates for flights from Cincinnati to St. Louis?

    Yes. Flexible dates can save you up to 39% on flights from Cincinnati to St. Louis. Wednesday is the cheapest departure day at $342 round-trip on average, while Monday is the most expensive at $556, a difference of $214.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Cincinnati to St. Louis?

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 3h 42m, compared with 3h 57m via Nashville Intl (BNA) and 4h 16m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Cincinnati and St. Louis?

    St. Louis is 1 hour behind Cincinnati (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Your guide to booking Cincinnati to St. Louis flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average $342, about $214 less than Monday fares (38% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Cincinnati to St. Louis trip for January. Fares historically average $297 round-trip in that month - typically $224 less than the most expensive month, which is February (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

    • Renaissance St. Louis Airport Hotel
    • Drury Inn & Suites St. Louis Airport
    • DoubleTree by Hilton St. Louis Airport

More options for your flight from Cincinnati to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental