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$48+ Cheap flights from Atlanta to St. Louis (ATL - STL)

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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — STL
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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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

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Cheapflights Tip: The best prices from Atlanta Hartsfield-Jackson to Lambert-St Louis are usually found in August or October, booked 82 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Atlanta to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Atlanta (ATL) to St. Louis (STL). 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 mayo 1, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$194
(CheapOair)

One-way from

$48
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$297

Good round-trip deal

$237 or less

Good one-way deal

$133 or less
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Lambert-St Louis flights.
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From Atlanta Hartsfield-Jackson to Lambert-St Louis
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One-way flight from Atlanta Hartsfield-Jackson to Lambert-St Louis
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Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Atlanta Hartsfield-Jackson to Lambert-St Louis.
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Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Lambert-St Louis.
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Find flight deals from Atlanta to St. Louis

Cheapest flights from Atlanta to St. Louis
Explore the most affordable flight options available from Atlanta to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
jue. 10/210:23 pmATL - STL
1 stop10h 26mSpirit Airlines
dom. 10/58:44 amSTL - ATL
1 stop4h 38mSpirit Airlines
Deal found 4/30$194
This Delta deal was found by Cheapflights users on 4/29. 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.
vie. 6/1311:10 pmATL - STL
Nonstop1h 41mDelta
lun. 6/166:00 amSTL - ATL
Nonstop1h 35mDelta
Deal found 4/29$197
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
mié. 5/287:15 amATL - STL
1 stop17h 29mFrontier
mié. 6/48:11 pmSTL - ATL
1 stop8h 59mFrontier
Deal found 4/30$200
This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/137:54 pmATL - STL
1 stop14h 18mMultiple Airlines
lun. 6/167:13 pmSTL - ATL
1 stop11h 09mMultiple Airlines
Deal found 4/30$205
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/88:25 amATL - STL
Nonstop1h 45mSouthwest
lun. 8/1111:20 amSTL - ATL
1 stop6h 15mSouthwest
Deal found 4/29$207
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/255:35 amATL - STL
1 stop5h 07mAmerican Airlines
sáb. 5/314:52 pmSTL - ATL
1 stop5h 59mAmerican Airlines
Deal found 4/30$208
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/36:50 pmATL - STL
1 stop4h 55mUnited Airlines
lun. 6/96:30 amSTL - ATL
1 stop4h 54mUnited Airlines
Deal found 4/30$321

Cheapflights Fare Finder

Customize your flight search to find flights from Atlanta to St. Louis 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 mayo 1, 2025.
Use the filters below to find and compare flights from Atlanta to St. Louis that are best for you.

Fly from

Atlanta

Fly to

St. Louis

Route

Depart

Return

Price

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 6/13

7:45 am-9:12 am

1 stop26h 27m

Lambert-St Louis

dom. 6/15

2:36 pm-5:27 pm

Nonstop1h 51m

$194

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 6/13

11:10 pm-11:51 pm

Nonstop1h 41m

Lambert-St Louis

lun. 6/16

6:00 am-8:35 am

Nonstop1h 35m

$197

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 6/13

7:54 pm-9:12 am

1 stop14h 18m

Lambert-St Louis

lun. 6/16

7:13 pm-7:22 am

1 stop11h 09m

$205

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

dom. 5/25

5:35 am-9:42 am

1 stop5h 07m

Lambert-St Louis

sáb. 5/31

4:52 pm-11:51 pm

1 stop5h 59m

$208

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

jue. 6/19

8:55 pm-9:40 pm

Nonstop1h 45m

Lambert-St Louis

mar. 6/24

2:50 pm-8:55 pm

1 stop5h 05m

$222

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

jue. 6/19

5:45 am-5:04 pm

1 stop12h 19m

Lambert-St Louis

dom. 6/22

6:12 pm-3:25 pm

2 stops20h 13m

$250

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

mar. 6/3

6:50 pm-10:45 pm

1 stop4h 55m

Lambert-St Louis

lun. 6/9

6:30 am-12:24 pm

1 stop4h 54m

$321

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

sáb. 6/14

1:10 pm-2:07 pm

Nonstop1h 57m

$48

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

mié. 6/25

9:45 pm-5:04 pm

1 stop20h 19m

$84

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

mar. 7/1

11:55 am-12:35 pm

Nonstop1h 40m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 14 results
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Compare providers for flights from Atlanta to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Atlanta to St. Louis in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
FareScanPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Atlanta-St. Louis flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Atlanta-St. Louis flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from Atlanta-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Atlanta-St. Louis flights, Cheapflights users trust Mytrip the most. Mytrip has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Atlanta-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Atlanta to St. Louis 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 Atlanta to St. Louis trip
Airports
ATL

For a quicker security check, try the South security area, often faster than the main one.

Read more about ATLby Chris Dong
STL

Use the MetroLink light rail for a convenient, economical ride from STL to downtown St. Louis.

Read more about STLby Taryn White
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 Atlanta to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Atlanta 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 Atlanta to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from Atlanta to St. Louis. Price data was last updated on April 25, 2025.

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from Atlanta to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Atlanta to St. Louis (average of $311). Flying from Atlanta to St. Louis in March is currently the most expensive (average of $356). 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 ATL to STL?

Find hourly flight availability from Atlanta to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 1, 2025.

One of the essential ways to save on airfare from Atlanta to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 5% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Atlanta to St. Louis. Price data was last updated on March 30, 2025.

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

Weekly flight availability from Atlanta to St. Louis

Explore weekly flight availability from Atlanta to St. Louis. 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 mayo 1, 2025.

The most flights from ATL to STL are scheduled on a Thursday (43 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated mayo 1, 2025.
To help decide which airline to fly from Atlanta to St. Louis, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

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

    If you book a flight from Atlanta to St. Louis, you will be flying from Hartsfield-Jackson to Lambert-St Louis. Flights to Lambert-St Louis (STL) from Atlanta Hartsfield-Jackson (ATL) take 1h 37m for a nonstop flight. There are 28 flights from Hartsfield-Jackson to St. Louis per day from 5 airlines.

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

    This flight path from Atlanta Hartsfield-Jackson to Lambert-St Louis was viewed by 19 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Currently priced at $194, Frontier will fly you from Atlanta to St. Louis and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Southwest - these airlines can fly you to your destination from $197 and $207, respectively. Users have found that Frontier is 37% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $48. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from Atlanta to St. Louis for a low price.

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

    No one likes to see their flight delayed. When booking a flight from Atlanta to St. Louis consider choosing Delta (88%), WestJet (86%) or Southwest (84%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Atlanta to St. Louis is $68. On average you can expect to pay $355. The most popular route, (Atlanta Hartsfield-Jackson - Lambert-St Louis), can usually be booked for $163.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Atlanta to St. Louis 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 Atlanta to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Atlanta to St. Louis (average of $311). Flying from Atlanta to St. Louis in March is currently the most expensive (average of $356). 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
Fenton
Maryland Heights
Fairview Heights
Collinsville
Wentzville
Eureka
St. Peters
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Alternative routes for Atlanta to St. Louis

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Top 5 airlines flying from Atlanta to St. Louis

Discover the top 5 airlines that operate flights from Atlanta to St. Louis. 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$103Average$171FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$185Average$398FlexibilityNo cancel feeOn-time71%
Southern / MokuleleCheapest$186Average$219FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$224Average$322FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$245Average$320FlexibilityNo cancel feeOn-time63%

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