$119 Cheap Delta flights St. Louis (STL) to Atlanta (ATL)

You can find affordable return Delta Air Lines flights from $137 from STL to ATL by organizing your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $119 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Delta Air Lines flights to Atlanta are generally cheaper in the off-peak months of January and February. Whether you need a one-way or a return ticket, you could score a better deal then.

Begin your search one to three months before your departure to score cheap fares on Delta Air Lines flights from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Skip the layovers and fly from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL) on any of Delta Air Lines’s 35 weekly direct flights. Use our “Nonstop” and “Airline” filters to find the Delta Air Lines flight that’ll land at ATL at a time that suits you.

From takeoff to touchdown, a direct Delta Air Lines flight from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL) takes around 1h 40m.

If flexibility is what you’re after, Thursday offers the most choice for Delta Air Lines flights from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL). You can pick from 5 different departures.

The first Delta Air Lines flight from STL to ATL departs at 6:00AM UTC-6, touching down at 8:39AM UTC-5. If you want to set off later in the day, the last Delta Air Lines flight leaves STL at 5:00PM UTC-6 and touches down at ATL at 7:44PM UTC-5. Flying early is often a smart option as morning flights are 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Hartsfield-Jackson Atlanta Intl. Airport (ATL) is the main Atlanta hub for Delta Air Lines flights from Lambert-St. Louis Intl. Airport (STL).

Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a top choice for many passengers flying from STL to ATL. Also, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be spent on future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be seated on a Boeing 737-900 or a Boeing 737-800 when flying Delta Air Lines from Lambert-St. Louis Intl. Airport (STL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL). However, keep in mind that a different aircraft could be assigned to your route depending on operational demands.

Depending on your ticket type, a fee may apply if you modify or cancel your flight more than 24 hours after it’s confirmed. To find plane tickets with more flexibility, select our “Changes included” or “No cancel fee” filter when you search for flights. For more information on canceling or modifying your reservation, go to “Trips,” select your flight and tick “Manage Booking.”