$145 Cheap Flights from St. Louis (STL) to Chattanooga (CHA)

View $145 flight on Wed, Dec 24, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA)

Cheap Flights from St. Louis to Chattanooga (STL-CHA)

Prices were available within the past 7 days and start at $145 for one-way flights and $229 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Nov 15 - Mon, Nov 24
STL
St. Louis
CHA
Chattanooga
$229 Roundtrip, just found
$229
Roundtrip
just found
Select Delta flight, departing Sat, Nov 15 from St. Louis to Chattanooga, returning Mon, Nov 24, priced at $229 just found
United
Sun, Nov 2 - Sat, Nov 8
STL
St. Louis
CHA
Chattanooga
$229 Roundtrip, found 3 hours ago
$229
Roundtrip
found 3 hours ago
Select United flight, departing Sun, Nov 2 from St. Louis to Chattanooga, returning Sat, Nov 8, priced at $229 found 3 hours ago
American Airlines
Tue, Oct 14 - Tue, Oct 21
STL
St. Louis
CHA
Chattanooga
$234 Roundtrip, found 4 hours ago
$234
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Oct 14 from St. Louis to Chattanooga, returning Tue, Oct 21, priced at $234 found 4 hours ago
United
Sun, Nov 2 - Sat, Nov 8
STL
St. Louis
CHA
Chattanooga
$236 Roundtrip, found 3 hours ago
$236
Roundtrip
found 3 hours ago
Select United flight, departing Sun, Nov 2 from St. Louis to Chattanooga, returning Sat, Nov 8, priced at $236 found 3 hours ago
United
Sun, Nov 2 - Sat, Nov 8
STL
St. Louis
CHA
Chattanooga
$239 Roundtrip, found 3 hours ago
$239
Roundtrip
found 3 hours ago
Select United flight, departing Sun, Nov 2 from St. Louis to Chattanooga, returning Sat, Nov 8, priced at $239 found 3 hours ago
United
Tue, Oct 14 - Tue, Oct 21
STL
St. Louis
CHA
Chattanooga
$239 Roundtrip, found 4 hours ago
$239
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Oct 14 from St. Louis to Chattanooga, returning Tue, Oct 21, priced at $239 found 4 hours ago
American Airlines
Fri, Nov 14 - Sun, Nov 16
STL
St. Louis
CHA
Chattanooga
$249 Roundtrip, found 2 hours ago
$249
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Nov 14 from St. Louis to Chattanooga, returning Sun, Nov 16, priced at $249 found 2 hours ago
Delta
Sat, Nov 15 - Tue, Nov 25
STL
St. Louis
CHA
Chattanooga
$254 Roundtrip, just found
$254
Roundtrip
just found
Select Delta flight, departing Sat, Nov 15 from St. Louis to Chattanooga, returning Tue, Nov 25, priced at $254 just found
Delta
Tue, Oct 14 - Tue, Oct 21
STL
St. Louis
CHA
Chattanooga
$259 Roundtrip, found 4 hours ago
$259
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Oct 14 from St. Louis to Chattanooga, returning Tue, Oct 21, priced at $259 found 4 hours ago
American Airlines
Fri, Nov 14 - Sun, Nov 16
STL
St. Louis
CHA
Chattanooga
$269 Roundtrip, found 2 hours ago
$269
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Nov 14 from St. Louis to Chattanooga, returning Sun, Nov 16, priced at $269 found 2 hours ago

Find the cheapest month to fly from St. Louis (STL) to Chattanooga (CHA)

February is typically the cheapest month to fly

From $198 - $375 per traveler.

Alternative airports near Chattanooga

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Chattanooga Metropolitan CHA. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $234
CHA
Chattanooga Metropolitan
CheapestClosest
Average driving time to city center14 min
Flights from $234

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA) cost?
Snag a cheap one-way flight from $145 or cheap return flight from $229 from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA)?
November is the cheapest month to fly from STL to CHA. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to CHA flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA)?
There aren't any daily nonstop flights available from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from STL to CHA?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA) route, aim to travel before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA) last-minute?
Last-minute fares from STL to CHA are generally more expensive. For the cheapest rates, start searching for flights ahead of time. That being said, if you can play around with your travel dates, you may land a cheap fare right before you leave.
Is it cheaper to book a STL to CHA flight and hotel package?
Opting for a STL to CHA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our impressive range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Chattanooga Metropolitan Airport (CHA)?
Typically, it's possible to cancel or reschedule your STL to CHA flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Chattanooga Metropolitan
Airlines serving
American Airlines, Delta, United
Roundtrip price
$228
Distance
383 mi

Book with confidence

Book with confidence

St. Louis to Chattanooga Flights

The cheapest times to fly from St. Louis to Chattanooga

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Chattanooga are during the month of November. You can find some of the cheapest flights from St. Louis to Chattanooga with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Chattanooga

Sunday is one of the best days to book for cheap flights from St. Louis to Chattanooga: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Chattanooga

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Chattanooga in 2025. You can also book with separate airlines for your outbound and return journeys, from $145 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Chattanooga flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Chattanooga airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Chattanooga Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.