$151 Cheap United flights St. Louis (STL) to Atlanta (ATL)

View $151 flight on Mon, Jan 19, 2026Opens in a new window

$151 Cheap United flights St. Louis (STL) to Atlanta (ATL)

Prices were available within the past 7 days and start at $151 for one-way flights and $371 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Jan 23 - Sun, Jan 25
STL
St. Louis
ATL
Atlanta
$371 Roundtrip, found 10 hours ago
$371
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Jan 23 from St. Louis to Atlanta, returning Sun, Jan 25, priced at $371 found 10 hours ago

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

December is typically the cheapest month to fly

From $73 - $647 per traveler.

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 $135
ATL
Hartsfield-Jackson Atlanta Intl.
Cheapest
Average driving time to city center16 min
Flights from $135
Flights from St. Louis (STL) to Atlanta (ATL)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Hartsfield-Jackson Atlanta Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Delta
Distance
772 km
Average flight time
2 hours 32 mins