Cheap flights from Tennessee to St. Louis from $50

In general, January is the cheapest month to fly from Tennessee to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $275. The month of September is another great option to travel to St. Louis, with average flight prices from Tennessee averaging around $294.

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $286. 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 $470. 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 Tennessee in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $386 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $415 per ticket.

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

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

No. A direct flight is the cheapest option for a flight between Tennessee to St. Louis.

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

American Airlines, Southwest and Delta are the top three most popular airlines that fly to St. Louis from Tennessee according to our data. American Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

As of August 2026, there are 1 flights per day flying from Tennessee to St. Louis. The most common time of day flights depart is 6:00AM, with 60% of flights taking off at noon.

As of August 2026, there are 12 flights per week flying from Tennessee to St. Louis. The most common day of the week flights depart is Mon, with 33% of flights taking off on this day.