Atlanta

$29+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ATL
Aug 3 — Aug 101
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Atlanta with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Lambert-St Louis to Atlanta Hartsfield-Jackson are usually found in July or June, booked 56 days in advance, depart on a Friday or Thursday 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 July 29, 2025.

Round-trip from

$114
(FlightHub)

One-way from

$29
(Cheapflightsfares)

Popular in

January

Cheapest in

July

Average price

$237

Good round-trip deal

$243 or less

Good one-way deal

$131 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. 7% potential increase in price ($25 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in July 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 July 29, 2025.

This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/252:30 pmSTL - ATL
1 stop7h 35mMultiple Airlines
Mon 9/112:05 pmATL - STL
Nonstop1h 51mMultiple Airlines
Deal found 7/28$114
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 10/1611:02 amSTL - ATL
Nonstop1h 40mFrontier
Sun 10/199:20 amATL - STL
Nonstop1h 47mFrontier
Deal found 7/29$115
This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 8/222:30 pmSTL - ATL
1 stop7h 35mSpirit Airlines
Mon 8/256:35 amATL - STL
1 stop7h 57mSpirit Airlines
Deal found 7/27$124
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:42 pmSTL - ATL
Nonstop1h 42mDelta
Sun 9/217:35 amATL - STL
Nonstop1h 39mDelta
Deal found 7/29$147

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 July 29, 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 8/25

2:30 pm-11:05 pm

1 stop7h 35m

Atlanta Hartsfield-Jackson

Mon 9/1

12:05 pm-12:56 pm

Nonstop1h 51m

$114

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Thu 10/16

11:02 am-1:42 pm

Nonstop1h 40m

Atlanta Hartsfield-Jackson

Sun 10/19

9:20 am-10:07 am

Nonstop1h 47m

$115

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 8/22

2:30 pm-11:05 pm

1 stop7h 35m

Atlanta Hartsfield-Jackson

Mon 8/25

6:35 am-1:32 pm

1 stop7h 57m

$124

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 9/19

6:42 pm-9:24 pm

Nonstop1h 42m

Atlanta Hartsfield-Jackson

Sun 9/21

7:35 am-8:14 am

Nonstop1h 39m

$147

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Sat 10/4

9:56 am-2:49 pm

1 stop3h 53m

Atlanta Hartsfield-Jackson

Sat 10/4

4:34 pm-8:32 pm

1 stop4h 58m

$181

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Mon 10/6

4:00 pm-6:44 pm

Nonstop1h 44m

$29

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Thu 10/2

12:05 pm-7:49 pm

1 stop6h 44m

$57

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Sun 8/31

9:55 am-12:30 pm

Nonstop1h 35m

$74

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Thu 8/28

7:00 am-9:37 am

Nonstop1h 37m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 25, 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 July 29, 2025.

It’s typically best to fly out from St. Louis to Atlanta in the evening. Doing so could potentially save you 36% 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 July 27, 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.

Weekly flight availability from St. Louis to Atlanta

Explore weekly flight availability from St. Louis to Atlanta. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 29, 2025.

The most flights from STL to ATL are scheduled on a Monday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

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 July 29, 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

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
8.0
Very good

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 36 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?

  • 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 $115. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at $124 and $147, respectively. Users have found that Frontier is 62% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from St. Louis to Atlanta one-way?

    The cheapest airlines for a one-way flight from St. Louis to Atlanta are Frontier ($29), Spirit Airlines ($57), and Southwest ($74).

  • 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: Korean Air (84%), Delta (82%), Air France( 82%).

  • 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 $1,399, our data indicates the cheapest price to be $77. The most popular route (Lambert-St Louis - Atlanta Hartsfield-Jackson), is priced around $120.

  • 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
Marietta
Stone Mountain
Lawrenceville
Sandy Springs
Kennesaw
Conyers
Douglasville
Acworth
Morrow
Buford
Covington
Smyrna
Athens
Stockbridge
Roswell

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$90Average$140FlexibilityNo cancel feeOn-time62%
Southern / MokuleleCheapest$193Average$239FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$198Average$331FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$213Average$312FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$404FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.