$44 Cheap Flights from St. Louis (STL) to Atlanta (ATL)

View $44 flight on Sat, Jul 12, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Hartsfield-Jackson Atlanta International Airport (ATL)

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Cheap Flights from St. Louis to Atlanta (STL-ATL)

Prices were available within the past 7 days and start at $44 for one-way flights and $88 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Jul 12 - Sat, Jul 19
STL
St. Louis
ATL
Atlanta
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jul 12 from St. Louis to Atlanta, returning Sat, Jul 19, priced at $88 just found
Frontier Airlines
Thu, Jul 17 - Sat, Jul 19
STL
St. Louis
ATL
Atlanta
$91 Roundtrip, just found
$91
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jul 17 from St. Louis to Atlanta, returning Sat, Jul 19, priced at $91 just found
Frontier Airlines
Thu, Jul 10 - Sun, Jul 13
STL
St. Louis
ATL
Atlanta
$93 Roundtrip, just found
$93
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jul 10 from St. Louis to Atlanta, returning Sun, Jul 13, priced at $93 just found
Frontier Airlines
Sat, Aug 2 - Sat, Aug 9
STL
St. Louis
ATL
Atlanta
$101 Roundtrip, found 1 day ago
$101
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Aug 2 from St. Louis to Atlanta, returning Sat, Aug 9, priced at $101 found 1 day ago
Frontier Airlines
Sat, Jun 28 - Sat, Jul 5
STL
St. Louis
ATL
Atlanta
$103 Roundtrip, just found
$103
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jun 28 from St. Louis to Atlanta, returning Sat, Jul 5, priced at $103 just found
Frontier Airlines
Sat, Jul 26 - Mon, Jul 28
STL
St. Louis
ATL
Atlanta
$112 Roundtrip, found 4 hours ago
$112
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Jul 26 from St. Louis to Atlanta, returning Mon, Jul 28, priced at $112 found 4 hours ago
Spirit Airlines
Thu, Jul 31 - Sat, Aug 2
STL
St. Louis
ATL
Atlanta
$115 Roundtrip, found 7 hours ago
$115
Roundtrip
found 7 hours ago
Select Spirit Airlines flight, departing Thu, Jul 31 from St. Louis to Atlanta, returning Sat, Aug 2, priced at $115 found 7 hours ago
Southwest Airlines
Thu, Aug 7 - Mon, Aug 11
STL
St. Louis
ATL
Atlanta
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, Aug 7 from St. Louis to Atlanta, returning Mon, Aug 11, priced at $137 just found
American Airlines
Thu, Aug 7 - Mon, Aug 11
STL
St. Louis
ATL
Atlanta
$159 Roundtrip, just found
$159
Roundtrip
just found
Select American Airlines flight, departing Thu, Aug 7 from St. Louis to Atlanta, returning Mon, Aug 11, priced at $159 just found
United
Thu, Oct 2 - Tue, Oct 7
STL
St. Louis
ATL
Atlanta
$217 Roundtrip, found 1 hour ago
$217
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Oct 2 from St. Louis to Atlanta, returning Tue, Oct 7, priced at $217 found 1 hour ago

Find the cheapest month to fly from St. Louis (STL) to Atlanta (ATL)

August is typically the cheapest month to fly

From $113 - $245 per traveler.

Graph displaying average flight prices per month

Alternative airports near Atlanta

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

Select flight to Hartsfield-Jackson Atlanta Intl. ATL. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $91
ATL
Hartsfield-Jackson Atlanta Intl.
Cheapest
Average driving time to city center16 min
Flights from $91
Flights from St. Louis (STL) to Atlanta (ATL)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Hartsfield-Jackson Atlanta Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$88
Distance
482 mi
Average flight time
2 hours 36 mins

St. Louis to Atlanta Flights

The cheapest times to fly from St. Louis to Atlanta

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 Atlanta are during the month of July. You can find some of the cheapest flights from St. Louis to Atlanta with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Atlanta: 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 Atlanta

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 Atlanta in 2025. You can also book with separate airlines for your outbound and return journeys, from $44 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 Atlanta 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 Atlanta 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.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL) cost?
You can find affordable return tickets from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL) starting from $114. Snag a seat and be on your way. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving STL on July 19 2025 and touching down at ATL. The price was last updated on June 25 2025 and has not changed since.
What is the cheapest month to fly from STL to ATL?
To lock in a cheap ticket, look for nonstop flights from STL to ATL jetting off in July. You can find a one-way Frontier Airlines flight for $54 leaving on July 10 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on June 25 2025 and remains unchanged.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL)?
Catch a direct flight with Delta Air Lines and travel straight from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL).
What is the cheapest airline that flies from STL to ATL?
Jet off from STL to ATL with Frontier Airlines. This airline currently has the lowest one-way fare on this route, starting at $54. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from STL on July 10 2025. Prices were last updated on June 25 2025 and have not changed since.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL)?
Each day, an average of 8 nonstop flights take off from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL). Choose the departure time that best suits your travel plans.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL)?
Flights between STL and ATL are their busiest at 5 PM. If you'd like a more relaxed trip and possibly cheaper fares, look for a departure outside the usual busy windows.
What day of the week has the most flights from STL to ATL?
If you travel on a Friday, you'll get the widest range of choices for flights from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL).
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL)?
Catch the earliest flight at around 6:00AM UTC-6, heading out of Lambert-St. Louis Intl. Airport (STL). You'll be in the air for around 1h 39m, arriving at Hartsfield-Jackson Atlanta Intl. Airport (ATL) at approximately 8:39AM UTC-5.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL)?
The average flight duration from STL to ATL is 1 hour and 38 minutes, covering a total distance of 480 mi.
What airline has the least delays from STL to ATL?
Aeromexico has the best performance for on-time direct flights from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL), with an on-time rating of 92%. Use the Expedia App to see your flight status before you jet off and receive notifications about any changes.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL)?
Book a flight from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**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.
What airports do you fly into for Atlanta from Lambert-St. Louis Intl. Airport (STL)?
Browse your flight options from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL). This is the only airport in Atlanta you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL) last-minute?
Last-minute bookings from STL to ATL are typically more expensive. To lock in the lowest rates, start looking for flights ahead of time. That said, if your travel plans are flexible, you may find a cheap ticket right before you leave.
Is it cheaper to book a STL to ATL flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to ATL flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place takes the hassle out of planning your trip. Just secure your flights and select from our wide range of stays, then customize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL)?
It's usually possible to cancel or reschedule your STL to ATL flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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