Cheap Flights from St Louis (STL) to Cincinnati Northern Kentucky (CVG)

Compare St Louis to Cincinnati Northern Kentucky flight deals

Find the cheapest month or even day of the year to fly to Cincinnati Northern Kentucky

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Flight deals from St Louis Airport to Cincinnati Northern Kentucky Airport

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Cincinnati Northern Kentucky Airport? If you want to travel next month, return fares start from £260. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Cincinnati Northern Kentucky

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Cincinnati Northern Kentucky flights are currently cheapest in April.

St Louis to Cincinnati Northern Kentucky: Alternative routes

Compare routes from St Louis to Cincinnati below. You may find an airport to fly into that's cheaper, faster, or easier than Cincinnati Northern Kentucky.

St Louis to Cincinnati: Flight information

The things to know before you go.
Cheapest flight found£157
Cheapest month to flyMay

Finding cheap flights from St Louis to Cincinnati Northern Kentucky: Frequently asked questions

The best price we found for a return flight from St Louis to Cincinnati Northern Kentucky is £157. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Cincinnati Northern Kentucky. But we found flights with one or more stops from £157.
As of March 2026, there are no flights flying from St Louis to Cincinnati Northern Kentucky.
The cheapest month to fly from St Louis to Cincinnati Northern Kentucky is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Cincinnati Northern Kentucky Airport on Friday, 29 May 2026.
No airlines currently offer direct flights between St Louis Airport and Cincinnati Northern Kentucky Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cincinnati Northern Kentucky but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Cincinnati is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to Cincinnati Northern Kentucky.

Travelling from Lambert-St. Louis International Airport (STL) to Cincinnati/Northern Kentucky Airport (CVG): what you need to know

  • Cincinnati is one hour ahead of St Louis and is in the UTC-4 timezone.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you can comfortably board your STL to CVG flight.

  • Flying during a peak month like July? Public holidays and other high seasons can lead to longer queues at airport checkpoints. Play things extra safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

  • Think about adding a stopover when booking your ticket from Lambert-St. Louis International Airport to Cincinnati/Northern Kentucky Airport. Simply uncheck 'Direct flights only' to break up your trip, or visit a new city along the way. Check out these options between STL and CVG:

    • Chicago Midway International Airport

    • O'Hare International Airport

    • Hartsfield-Jackson Atlanta International Airport

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Cincinnati/Northern Kentucky Airport (CVG)

  • Currently, £94 is the cheapest price we've found for a one-way Lambert-St. Louis International Airport to Cincinnati/Northern Kentucky Airport flight. The best price for a return plane ticket is £157. Bear in mind that fares may change due to demand at the time of booking.

  • To pick up cheap tickets from STL to CVG, book ahead. Airlines usually offer lower fares when flights are first released.

  • Finding cheap flights from Lambert-St. Louis International Airport to Cincinnati/Northern Kentucky Airport is easy if you're flexible with your dates. Use the 'Whole month' search function to see the lowest prices across every month and score a great deal.

  • There's no need to check every day to see if fares have gone down when you set up a Price Alert. We'll let you know the moment there's a better deal on cheap flights from STL to CVG.

  • Tailor your flights using filters. Select your arrival and departure times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from Lambert-St. Louis International Airport to Cincinnati/Northern Kentucky Airport.

Handy information about Lambert-St. Louis International Airport (STL)

Arriving at Cincinnati/Northern Kentucky Airport (CVG)

  • Grab a Cincinnati/Northern Kentucky Airport rental car and discover Cincinnati and beyond with your own wheels. Budget, Hertz and Thrifty are leading providers you can book with here.

  • Booking your ride from Cincinnati/Northern Kentucky Airport about two weeks in advance increases your chances of getting a good deal.

Getting from Cincinnati/Northern Kentucky Airport (CVG) to central Cincinnati

  • From Cincinnati/Northern Kentucky Airport, Cincinnati is approximately 13 miles away. It takes around 20 minutes to drive to the centre.

  • Getting there by public transport will take you roughly 40 minutes.

When to fly to Cincinnati/Northern Kentucky Airport (CVG)

  • July is the busiest month for flights from Lambert-St. Louis International Airport to Cincinnati/Northern Kentucky Airport. To skip the crowds, head to Cincinnati in February.

  • When reserving your flight from Lambert-St. Louis International Airport to Cincinnati/Northern Kentucky Airport, consider the type of weather you like. July is the warmest month in Cincinnati, with the temperature ranging from 16ºC (61ºF) to 32ºC (90ºF).

  • If you like cooler conditions, look for a cheap ticket from STL to CVG in January. Average temperatures are between -10ºC (14ºF) and 7ºC (45ºF) then.

Explore more of United States

  • Cincinnati is always a good idea, but there are so many other parts of United States just waiting to be explored. About 250 miles north-west of Cincinnati, a trip to Chicago will fill your itinerary to the brim. Don't miss top attractions like Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • Around 100 miles north-east of Cincinnati, Columbus is another favourite stop in United States. Experience major highlights starting with Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.