$64 Cheap Flights from Atlanta (ATL) to St. Louis (STL)

View $64 flight on Sat, Jul 12, 2025Opens in a new window

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Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $64 for one-way flights and $128 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Jun 14 - Sat, Jun 21
ATL
Atlanta
STL
St. Louis
$128 Roundtrip, found 11 hours ago
$128
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Sat, Jun 14 from Atlanta to St. Louis, returning Sat, Jun 21, priced at $128 found 11 hours ago
Frontier Airlines
Sat, Jul 5 - Sat, Jul 12
ATL
Atlanta
STL
St. Louis
$129 Roundtrip, found 7 hours ago
$129
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Jul 5 from Atlanta to St. Louis, returning Sat, Jul 12, priced at $129 found 7 hours ago
Frontier Airlines
Sat, Jun 28 - Sat, Jul 5
ATL
Atlanta
STL
St. Louis
$130 Roundtrip, found 1 day ago
$130
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jun 28 from Atlanta to St. Louis, returning Sat, Jul 5, priced at $130 found 1 day ago
Frontier Airlines
Sat, Jun 14 - Sun, Jun 15
ATL
Atlanta
STL
St. Louis
$139 Roundtrip, found 1 hour ago
$139
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jun 14 from Atlanta to St. Louis, returning Sun, Jun 15, priced at $139 found 1 hour ago
Frontier Airlines
Sat, Jun 28 - Sun, Jun 29
ATL
Atlanta
STL
St. Louis
$140 Roundtrip, just found
$140
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jun 28 from Atlanta to St. Louis, returning Sun, Jun 29, priced at $140 just found
Frontier Airlines
Sat, Jul 12 - Sun, Jul 13
ATL
Atlanta
STL
St. Louis
$145 Roundtrip, found 15 hours ago
$145
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Atlanta to St. Louis, returning Sun, Jul 13, priced at $145 found 15 hours ago
Southwest Airlines
Fri, Jun 13 - Sat, Jun 14
ATL
Atlanta
STL
St. Louis
$163 Roundtrip, just found
$163
Roundtrip
just found
Select Southwest Airlines flight, departing Fri, Jun 13 from Atlanta to St. Louis, returning Sat, Jun 14, priced at $163 just found
American Airlines
Wed, Jun 18 - Sat, Jun 21
ATL
Atlanta
STL
St. Louis
$173 Roundtrip, just found
$173
Roundtrip
just found
Select American Airlines flight, departing Wed, Jun 18 from Atlanta to St. Louis, returning Sat, Jun 21, priced at $173 just found
Spirit Airlines
Wed, Jul 9 - Sat, Jul 12
ATL
Atlanta
STL
St. Louis
$175 Roundtrip, found 17 hours ago
$175
Roundtrip
found 17 hours ago
Select Spirit Airlines flight, departing Wed, Jul 9 from Atlanta to St. Louis, returning Sat, Jul 12, priced at $175 found 17 hours ago
Delta
Tue, Jul 1 - Fri, Jul 4
ATL
Atlanta
STL
St. Louis
$179 Roundtrip, just found
$179
Roundtrip
just found
Select Delta flight, departing Tue, Jul 1 from Atlanta to St. Louis, returning Fri, Jul 4, priced at $179 just found

Frequently asked questions

How much does a flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL) cost?
Pick up cheap return flights starting at $128 from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL). 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 ATL on May 10 2025 and touching down at STL. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from ATL to STL?
The cheapest flights from ATL to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL)?
When jetting out of Hartsfield-Jackson Atlanta Intl. Airport (ATL), you can hop on a nonstop flight to Lambert-St. Louis Intl. Airport (STL) with Delta Air Lines.
What is the cheapest airline that flies from ATL to STL?
Right now, the cheapest airline offering one-way flights from ATL to STL is Frontier Airlines. You can jet off on this route from $64. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ATL on July 19 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL)?
When taking off from Hartsfield-Jackson Atlanta Intl. Airport (ATL), you can pick from an average of 8 daily direct flights to Lambert-St. Louis Intl. Airport (STL).
What are the most popular departure times for flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL)?
The 3 PM departures from ATL to STL are the top choice for many travelers. They can also be more expensive. If you want to save on your trip, book during off-peak hours.
What day of the week has the most flights from ATL to STL?
Friday has the most flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL). Consider jetting off on this day and you’ll have a greater chance of finding a departure that works with your plans.
What is the earliest flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL)?
Catch the earliest flight at around 7:45AM UTC-5, heading out of Hartsfield-Jackson Atlanta Intl. Airport (ATL). You’ll be flying for approximately 1h 40m, touching down at Lambert-St. Louis Intl. Airport (STL) at approximately 8:25AM UTC-6.
How long does it take to fly from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL)?
It takes approximately 1 hour and 45 minutes to travel the 480 mi from ATL to STL.
What airline has the least delays from ATL to STL?
With 96% of flights generally arriving on schedule, LATAM Airlines has the best on-time performance for nonstop flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL). To check your flight status and get notified if anything changes, simply head to the Expedia App.
What is the best time to fly from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL)?
Choose a flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL) that takes off before 3 PM to reduce the risk of cancellations and delays. Later departures 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 St. Louis from Hartsfield-Jackson Atlanta Intl. Airport (ATL)?
If you’ve booked a direct flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to St. Louis, Lambert-St. Louis Intl. Airport (STL) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your plane ticket from ATL to STL right before your journey is usually more expensive. However, if you’re flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book an ATL to STL flight and hotel package?
Compared with arranging hotels and flights separately, booking an ATL to STL flight and hotel package with Expedia could lead to significant savings. What’s more, having everything in one place will take the stress out of travel planning. Just pick your flights and select from our wide range of stays, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lambert-St. Louis Intl. Airport (STL)?
Generally, it’s possible to reschedule or cancel your ATL to STL flight. However, if it’s been more than 24 hours since booking, additional charges may apply. Refer to your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find more details on our Customer Service portal.
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