Cheap Flights from St Louis to Chattanooga

Compare St Louis to Chattanooga flight deals

Find the cheapest month or even day of the year to fly to Chattanooga

Book the best Chattanooga fare with no extra fees

Flight deals from St Louis to Chattanooga

Looking for a cheap last-minute deal or the best return flight from St Louis Airport to Chattanooga Airport? If you want to travel next month, return fares start from R 4,163. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from St Louis to Chattanooga

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

St Louis to Chattanooga: Alternative routes

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

St Louis to Chattanooga: Flight information

The things to know before you go.
Cheapest flight foundR 2,098
Cheapest month to flyJuly

Finding cheap flights from St Louis to Chattanooga: Frequently asked questions

The best price we found for a return flight from St Louis to Chattanooga is R 4,163. 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 Chattanooga. But we found flights with one or more stops from R 4,163.
As of June 2026, there are no flights flying from St Louis to Chattanooga.
The cheapest month to fly from St Louis to Chattanooga is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Chattanooga Airport on Friday, 24 July 2026.
No airlines currently offer direct flights between St Louis Airport and Chattanooga 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 Chattanooga 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 Chattanooga 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 Chattanooga.

Flying from St Louis Airport (STL) to Chattanooga Airport (CHA): what you need to know

  • To ensure you catch your STL to CHA flight, leave enough time to check in and drop off your luggage. Turning up two hours ahead of international departures and one hour before domestic flights is the standard rule.

  • Travelling during a peak time such as July? Major public holidays and other popular seasons can result in longer lines and delays at airport checkpoints. Play things extra safe and get there up to four hours before an international flight and two hours before domestic departures.

  • If you want to split up your journey, simply deselect 'Direct flights only' when searching for your ticket from St Louis Airport to Chattanooga Airport. Here are the top stopovers between STL and CHA:

    • Chicago O'Hare International Airport

    • Atlanta Hartsfield-Jackson Airport

    • Charlotte Douglas Airport

How to find the cheapest flights from St Louis Airport (STL) to Chattanooga Airport (CHA)

  • R 2,098 is the best price for a one-way St Louis Airport to Chattanooga Airport flight. A return flight starts at R 4,163. These fares can change based on demand.

  • It's usually best to book early if you want to find cheap tickets from STL to CHA. That's because airlines change prices based on demand, which tends to increase closer to departure.

  • If you're flexible with your trip dates, try using the 'Whole month' search tool. It'll find the cheapest price across every month when searching for a flight from St Louis Airport to Chattanooga Airport.

  • Snapping up cheap flights from STL to CHA is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as there's a better deal.

  • Discover the right flight for you with the help of the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from St Louis Airport to Chattanooga Airport, use the 'Sort by' function. You can also filter by airline, arrival and departure times, and journey duration.

Handy information about St Louis Airport (STL)

Arriving at Chattanooga Airport (CHA)

When to fly to Chattanooga Airport (CHA)

  • October is the most popular month for flights from St Louis Airport to Chattanooga Airport. To escape the crowds, head to Chattanooga in January.

  • Before locking in your flight from St Louis Airport to Chattanooga Airport, think about the kind of weather you enjoy. July is the warmest month in Chattanooga, with the temperature ranging from 17ºC (63ºF) to 31ºC (88ºF).

  • If you like travelling in cooler conditions, search for a cheap ticket from STL to CHA in January. Temperatures average between -5ºC (23ºF) and 10ºC (50ºF) then.

Explore more of the United States

  • Charlotte is just one of the many cities in the United States waiting to be explored once you've taken in the sights of Chattanooga. Around 402 kilometres away to the east, popular attractions include Bechtler Museum of Modern Art, Discovery Place and NASCAR Hall of Fame.

  • Memphis is another sought-after destination in the United States and is around 434 kilometres west of Chattanooga. No trip is complete without dropping by Elvis Presley’s Memphis, Graceland and National Civil Rights Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.