Cheap flights from Cleveland to St. Louis from $68

In general, August is the cheapest month to fly from Cleveland to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $252. The month of September is another great option to travel to St. Louis, with average flight prices from Cleveland averaging around $270.

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $364. 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 Sunday 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.

Flying to St. Louis from Cleveland in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $352 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $396 per ticket.

Fly from Cleveland Hopkins Intl to Lambert-St Louis for the best Cleveland Hopkins Intl - Lambert-St Louis flight prices

You are more likely to see cheaper flights to St. Louis from Cleveland when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $324 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Cleveland for as low as $248 on momondo.

There is only 1 cabin class available to choose from on Cleveland to St. Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 9% on your flight if you consider stops on a Cleveland to St. Louis flight.

As of April 2026, prices for Cleveland to St. Louis flights are approximately 1% cheaper when compared to flights at the same time last year.

Southwest, Delta, and Frontier are the most popular carriers operating from Cleveland Hopkins Intl to Lambert-St Louis

Southwest, Delta and American Airlines are the top three most popular airlines that fly to St. Louis from Cleveland according to our data. Southwest is the first choice among our users, with 48% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 6 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

As of April 2026, there are 1 flights per day flying from Cleveland to St. Louis. The most common time of day flights depart is 7:00AM, with 57% of flights taking off at noon.

As of April 2026, there are 7 flights per week flying from Cleveland to St. Louis. The most common day of the week flights depart is Mon, with 29% of flights taking off on this day.