Cheap flights from St. Louis to Tennessee from $49

The cheapest month to fly to Tennessee from St. Louis is in January. Flight prices, which tend to average around $206, are often lower during this time because this is during the off-season. If you don’t want to visit Tennessee in January, then you should wait until March to fly from St. Louis, when ticket prices are also cheap, with an average price of $208.

The cheapest day to depart from St. Louis to Tennessee is on a Tuesday. Travelers who choose to depart for Tennessee on a Tuesday will often find tickets for as low as $329. Flights from St. Louis to Tennessee on a Monday will generally be more expensive and average around $429. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

The cheapest time of day to fly to Tennessee is in the evening when flights can be purchased for as low as $289. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $396 on average. Flights to Tennessee from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Lambert-St Louis to Nashville Intl for the best Lambert-St Louis - Tennessee flight prices

You are more likely to see cheaper flights to Tennessee from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Tennessee for around $248 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tennessee from St. Louis for as low as $163 on momondo.

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

Southwest, Southern / Mokulele, and Frontier are the most popular carriers operating from Lambert-St Louis to Tennessee

Southwest, American Airlines and Delta are the top three most popular airlines that fly to Tennessee from St. Louis according to our data. Southwest is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Tennessee. Keep in mind that there are 6 different airlines that fly to Tennessee on a routine basis, so you have a few additional options to choose from.

The number of flights available between St. Louis and Tennessee is 1 per day as of February 2026. The most frequent departure time is 8:00AM, with 50% of daily flights leaving in the afternoon.

As of February 2026, 10 flights take off from St. Louis and land in Tennessee each week. The most common flight departure day for this route is Mon, with 40% of weekly flights taking off on this day.