Cheap flights from Cincinnati to St. Louis from $107
This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Cincinnati to St. Louis departing on 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Cincinnati to St. Louis
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from Cincinnati to St. Louis
All round-trip flight deals to St. Louis
Frontier flights from Cincinnati to St. Louis
Our best Frontier deals on Cincinnati to St. Louis flight tickets
Southwest flights from Cincinnati to St. Louis
Our best Southwest deals on Cincinnati to St. Louis flight tickets
See travel insights to St. Louis from
How to get the cheapest flight ticket from Cincinnati to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
In general, May is the cheapest month to fly from Cincinnati to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $175. The month of July is another great option to travel to St. Louis, with average flight prices from Cincinnati averaging around $296.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $296. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $429. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Cincinnati in the evening is the least expensive time of day to depart. momondo users have found prices as low as $308 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $426 per ticket.
How have Cincinnati to St. Louis flight prices changed over time?
When to book flights from Cincinnati to St. Louis
Cheap Cincinnati to St. Louis (CVG to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Cincinnati to St. Louis
How far is Cincinnati Cinci./N. Kentucky to Lambert-St Louis by plane?
A flight from Cincinnati Cinci./N. Kentucky to Lambert-St Louis will travel around 307.3 mi. Flights usually cover this in 4h 05m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport?
Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport?
As of December 2024, there are 3 operators available to choose from for flights from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport.
How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cincinnati Cinci./N. Kentucky Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Cincinnati to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Cincinnati to St. Louis is American Airlines (66% of total bookings). The next most popular airlines are Delta (23%) and United Airlines (11%).
Best airlines flying from Cincinnati to St. Louis
Compare and see reviews for airlines that fly from Cincinnati to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $175 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $227 | Free Cancellation | Rating 7.4 9,007 reviews | |||
| PriceFrom $231 | Free Cancellation | Rating 8.0 8,580 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Cincinnati to St. Louis?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cincinnati to St. Louis for you.
Can I find flights from Cincinnati to St. Louis with flexible booking policies on momondo?
Yes. All flights to St. Louis from Cincinnati on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Cincinnati to St. Louis?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Cincinnati to St. Louis.
I’m not ready to book a flight from Cincinnati to St. Louis right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Cincinnati to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.