Atlanta

$51+ Cheap flights from St. Louis to Atlanta (STL - ATL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ATL
Oct 19 — Oct 261
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Cheapflights Tip: The best prices from Lambert-St Louis to Atlanta Hartsfield-Jackson are usually found in July or August, booked 65 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from St. Louis to Atlanta

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Atlanta (ATL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 19, 2025.

Round-trip from

$119
(Kiwi.com)

One-way from

$51
(Cheapflightsfares)

Popular in

January

Cheapest in

July

Average price

$248

Good round-trip deal

$245 or less

Good one-way deal

$123 or less
From Lambert-St Louis to Atlanta Hartsfield-Jackson
One-way flight from Lambert-St Louis to Atlanta Hartsfield-Jackson
Highest demand for flights based on searches. 12% potential increase in price ($42 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Lambert-St Louis to Atlanta Hartsfield-Jackson.
Price to beat on a one-way flight from Lambert-St Louis to Atlanta Hartsfield-Jackson.

Find flight deals from St. Louis to Atlanta

Cheapest flights from St. Louis to Atlanta
Explore the most affordable flight options available from St. Louis to Atlanta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:52 pmSTL - ATL
1 stop21h 56mFrontier
Fri 10/179:50 amATL - STL
Nonstop1h 47mFrontier
Deal found 9/17$119
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:26 pmSTL - ATL
Nonstop1h 45mFrontier
Sun 12/144:39 pmATL - STL
Nonstop1h 52mFrontier
Deal found 9/17$121
This Cheapflightsfares deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/145:05 pmSTL - ATL
1 stop27h 28mFrontier
Sun 11/169:25 amATL - STL
Nonstop1h 47mFrontier
Deal found 9/16$126
This Cheapflightsfares deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1311:07 amSTL - ATL
Nonstop1h 40mFrontier
Sun 11/169:25 amATL - STL
Nonstop1h 47mFrontier
Deal found 9/16$127
This Booking.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:07 amSTL - ATL
Nonstop1h 40mFrontier
Thu 10/304:13 pmATL - STL
1 stop22h 04mFrontier
Deal found 9/18$129
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:45 pmSTL - ATL
1 stop9h 17mFrontier
Thu 12/183:41 pmATL - STL
Nonstop1h 52mFrontier
Deal found 9/18$131
This Trip.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/254:00 pmSTL - ATL
Nonstop1h 44mFrontier
Sun 9/287:34 amATL - STL
1 stop26h 32mFrontier
Deal found 9/18$133
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:52 pmSTL - ATL
2 stops15h 55mFrontier
Thu 10/239:50 amATL - STL
Nonstop1h 47mFrontier
Deal found 9/18$134
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/24:00 pmSTL - ATL
Nonstop1h 44mFrontier
Sun 10/52:16 pmATL - STL
Nonstop1h 48mFrontier
Deal found 9/18$136
This Booking.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/22:12 pmSTL - ATL
1 stop8h 47mFrontier
Sun 11/99:25 amATL - STL
Nonstop1h 47mFrontier
Deal found 9/18$137
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:11 amSTL - ATL
Nonstop1h 40mFrontier
Sun 10/269:50 amATL - STL
Nonstop1h 47mFrontier
Deal found 9/17$138

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Atlanta that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 19, 2025.
Use the filters below to find and compare flights from St. Louis to Atlanta that are best for you.

Fly from

St. Louis

Fly to

Atlanta

Route

Depart

Return

Price

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Mon 9/29

1:57 pm-9:34 pm

1 stop6h 37m

Atlanta Hartsfield-Jackson

Thu 10/9

9:50 am-10:37 am

Nonstop1h 47m

$144

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Tue 9/30

7:55 pm-9:56 pm

1 stop25h 01m

Atlanta Hartsfield-Jackson

Sat 10/4

7:34 am-9:06 am

1 stop26h 32m

$156

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Thu 11/13

7:45 pm-6:02 am

1 stop9h 17m

Atlanta Hartsfield-Jackson

Sun 11/16

10:43 pm-9:40 am

1 stop11h 57m

$156

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 10/24

11:11 am-1:51 pm

Nonstop1h 40m

Atlanta Hartsfield-Jackson

Sun 10/26

7:30 am-9:07 am

1 stop26h 37m

$161

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Thu 10/16

11:32 am-2:12 pm

Nonstop1h 40m

Atlanta Hartsfield-Jackson

Mon 10/20

7:55 pm-9:07 am

1 stop14h 12m

$177

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 10/3

7:55 pm-6:04 am

1 stop9h 09m

Atlanta Hartsfield-Jackson

Thu 10/9

9:50 am-10:37 am

Nonstop1h 47m

$177

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 10/10

6:05 pm-12:41 am

1 stop5h 36m

Atlanta Hartsfield-Jackson

Sun 10/12

10:43 pm-8:21 pm

1 stop22h 38m

$189

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Thu 10/16

6:00 am-8:37 am

Nonstop1h 37m

Atlanta Hartsfield-Jackson

Sun 10/19

7:25 am-8:05 am

Nonstop1h 40m

$197

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 11/7

6:00 am-8:37 am

Nonstop1h 37m

Atlanta Hartsfield-Jackson

Mon 11/10

5:15 pm-5:57 pm

Nonstop1h 42m

$197

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 11/14

7:05 am-9:45 am

Nonstop1h 40m

Atlanta Hartsfield-Jackson

Mon 11/17

10:55 pm-11:40 pm

Nonstop1h 45m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 21 results
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The best insider tips for St. Louis to Atlanta flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Atlanta trip
Airports
STL

Expect security screening at STL to take 5-10 minutes off-peak. Check real-time wait times online before heading to the airport.

Read more about STLby Taryn White
ATL

Use MARTA for a quick 15-20 minute ride from ATL to downtown Atlanta, located inside the domestic terminal.

Read more about ATLby Chris Dong
Our travel experts
Chris Dong

Chris Dong

Expert on ATL

Chris Dong

Chris Dong

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more

Best time to book a flight from St. Louis to Atlanta

Have a flexible travel schedule? Discover the best time to fly to Atlanta from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Atlanta

How far ahead should I book a flight from St. Louis to Atlanta?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Atlanta. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Atlanta, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to Atlanta?

Currently, August is the cheapest month in which you can book a flight from St. Louis to Atlanta (average of $190). Flying from St. Louis to Atlanta in June is currently the most expensive (average of $246). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to ATL?

Find hourly flight availability from St. Louis to Atlanta. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 19, 2025.

It’s typically best to fly out from St. Louis to Atlanta in the evening. Doing so could potentially save you 34% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from St. Louis to Atlanta?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Atlanta. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their St. Louis to Atlanta flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Atlanta

Get insights into the airlines that provide service to Atlanta. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Atlanta. Reviews last updated September 19, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American Airlines from St. Louis to Atlanta by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
8.0
Very good

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Atlanta. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports serve Atlanta from St Louis?

    You can fly to Atlanta from St Louis Lambert International Airport (STL). The terminal handles both domestic and international flights, and it is served by major airlines, such as American Airlines, Delta, United Airlines, Southwest Air, Spirit, Air Canada, Frontier Airlines, and more. If you are looking for a flight from Belleville, Illinois, your best choice would be Scott AFB/ MidAmerica Airport (BLV), and Indianapolis International Airport (IND) for those coming from Indianapolis. Other airports around the St Louis area include, but certainly are not limited to, Memphis International Airport (MEM), Louisville International Airport (SDF), and more. The fastest way to get to St Louis Lambert International Airport (STL) in less than 20min is to drive yourself or take a taxi. If you have about half an hour to spare, you can take a bus.

  • Which airlines fly directly from St Louis to Atlanta?

    The nearest airport to Atlanta is Hartsfield-Jackson Atlanta Intl Airport (ATL). To get from St Louis Lambert International Airport (STL), it will take approximately 1h 30min, depending on the flight route and airline. That said, several airlines offer cheap flights to Atlanta from St Louis. They include American Airlines, United Airlines, Southwest Airlines, and Delta Air Lines. Delta Air Lines provides nonstop flights. A flight comparison site like Cheapflights.com is dedicated to bringing you the best and most affordable nonstop routes available. It works with numerous travel agents and airlines to give you a seamless travel experience. It’s as easy as entering your search details to compare your options then booking your trip with one of Cheapflight’s partner sites.

  • What are the layover options between St Louis and Atlanta?

    A flight to Atlanta from St Louis is brief, but that doesn’t mean that there are no layovers for those who don’t mind spending less to reach their destination. Your possible layover options from St Louis Lambert International Airport (STL) to Hartsfield-Jackson Atlanta Intl Airport include Charlotte Douglas International Airport (CLT), O Hare International Airport in Chicago, Denver International Airport, and Dallas International Airport (DFW). Before you fly to Atlanta from St Louis, log in to Cheapflights.com to confirm whether your flight plan involves an extended layover, so that you can pack and plan accordingly. You should also consult with the airport attendants to see if leaving the airport during a layover is a viable option.

  • Do I need a passport or visa to fly from St Louis to Atlanta?

    No, you don’t need a visa because it is considered domestic travel. You will, however, need to provide a valid, government-issued identification document, such as a driver’s license, a valid U.S. passport, or military ID while traveling within the United States. You may also be asked to present these same documents to verify your identity when checking into a hotel. Therefore, ensure they are all updated before traveling.

  • What airports do I use to fly from St. Louis to Atlanta?

    Booking a flight from Lambert-St Louis (STL) to Atlanta Hartsfield-Jackson (ATL) is your only option if you wish to fly from St. Louis to Atlanta. On a typical day, there are 37 flights from Lambert-St Louis to Hartsfield-Jackson, all of which are around 1h 30m for a nonstop flight. You can also purchase a plane ticket from 5 airlines when you book a flight from Lambert-St Louis to Atlanta.

  • How popular is this St. Louis to Atlanta flight route?

  • How long is the flight from St. Louis to Atlanta?

    For as low as $144, Frontier can have you in Atlanta from St. Louis in 6h 37m. The distance between St. Louis and Atlanta is about 484 mi.

  • What are the cheapest airlines flying from St. Louis to Atlanta round-trip?

    Flying on Frontier is currently your cheapest option to Atlanta, with prices starting at $83. Additional round-trip tickets that might be worth considering are offered by Southern / Mokulele and Delta, with the lowest prices starting at $194 and $197, respectively. Users have found that Frontier is 72% cheaper than the other options available to this destination.

  • What are the most reliable airlines from St. Louis to Atlanta?

    Before booking your flight to Atlanta from St. Louis, check out the most reliable airlines to get you to your destination on time: Aeromexico (96%), Korean Air (92%), WestJet( 92%).

  • What are the cheapest flights from St. Louis to Atlanta?

    Looking for the cheapest flight from St. Louis to Atlanta? While on average our users pay $452, our data indicates the cheapest price to be $71. The most popular route (Lambert-St Louis - Atlanta Hartsfield-Jackson), is priced around $127.

  • Can I find deals for flights from St. Louis to Atlanta that include hotel bookings?

    Yes. In addition to deals on St. Louis to Atlanta flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Atlanta?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Atlanta.

  • Can I find deals for business class flights from St. Louis to Atlanta?

    Yes. Cheapflights offers flight deals from St. Louis to Atlanta by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Atlanta?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Atlanta (average of $190). Flying from St. Louis to Atlanta in June is currently the most expensive (average of $246). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Atlanta?

Book flights to Atlanta if you plan to visit one of these locations
Duluth
College Park
Auburn
McDonough
Norcross
Roswell
Lawrenceville
Stone Mountain
Acworth
Kennesaw
Conyers
Buford
Athens
Marietta
Douglasville
Commerce
Covington
Smyrna
Lithonia
Sandy Springs

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Top 5 airlines flying from St. Louis to Atlanta

Discover the top 5 airlines that operate flights from St. Louis to Atlanta. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$83Average$140FlexibilityNo cancel feeOn-time62%
Southern / MokuleleCheapest$194Average$264FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$197Average$324FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$197Average$312FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$207Average$372FlexibilityNo cancel feeOn-time71%

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