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$107+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — STL
Dec 26 — Jan 21
Thu 12/26
Thu 1/2
1 adult, Economy
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The best prices from Atlanta Hartsfield-Jackson to Lambert-St Louis are usually found in August or February, booked 89 days in advance, depart on a Wednesday or Friday and return on a Thursday

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 December 21, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$256
(United Airlines)

One-way from

$111
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$342
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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High demand for flights, 3% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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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 December 21, 2024.

This CheapOair deal was found by Cheapflights users on 12/20. 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.
Tue 12/2410:01 pmATL - STL
1 stop26h 39mFrontier
Tue 12/313:53 pmSTL - ATL
1 stop6h 29mFrontier
Deal found 12/20$288
This Mytrip deal was found by Cheapflights users on 12/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:20 pmATL - STL
3 stops35h 30mMultiple Airlines
Tue 1/143:48 pmSTL - ATL
1 stop7h 06mMultiple Airlines
Deal found 12/20$440
This Southwest deal was found by Cheapflights users on 12/20. 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.
Wed 12/256:45 pmATL - STL
Nonstop1h 45mSouthwest
Tue 1/146:55 amSTL - ATL
1 stop5h 50mSouthwest
Deal found 12/20$455
This American Airlines deal was found by Cheapflights users on 12/20. 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.
Wed 12/2510:57 amATL - STL
2 stops7h 16mAmerican Airlines
Tue 1/146:29 pmSTL - ATL
1 stop4h 35mAmerican Airlines
Deal found 12/20$499
This Delta deal was found by Cheapflights users on 12/19. 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 12/278:59 pmATL - STL
Nonstop1h 43mDelta
Sun 12/2912:55 pmSTL - ATL
Nonstop1h 38mDelta
Deal found 12/19$555
This United Airlines deal was found by Cheapflights users on 12/19. 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.
Thu 12/266:30 amATL - STL
1 stop5h 17mUnited Airlines
Fri 1/35:00 amSTL - ATL
2 stops18h 15mUnited Airlines
Deal found 12/19$650
This Mytrip deal was found by Cheapflights users on 12/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/245:20 amATL - STL
1 stop11h 01mSpirit Airlines
Thu 12/264:27 pmSTL - ATL
2 stops22h 29mSpirit Airlines
Deal found 12/20$929
This Alaska Airlines deal was found by Cheapflights users on 12/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/265:19 pmATL - STL
2 stops21h 08mAlaska Airlines
Thu 1/92:49 pmSTL - ATL
2 stops23h 19mAlaska Airlines
Deal found 12/20$1,195

Find flights from Atlanta to St. Louis within your budget

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 December 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Tue 1/7

10:15 am-3:38 pm

1 stop6h 23m

Lambert-St Louis

Tue 1/14

12:55 pm-7:38 pm

1 stop5h 43m

$256

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Fri 1/10

10:54 pm-11:37 pm

Nonstop1h 43m

Lambert-St Louis

Sun 1/12

7:15 am-9:55 am

Nonstop1h 40m

$257

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Sat 1/11

7:45 am-8:25 am

Nonstop1h 40m

Lambert-St Louis

Sun 1/12

7:20 am-10:00 am

Nonstop1h 40m

$258

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Sun 2/16

1:45 pm-8:10 pm

3 stops31h 25m

Lambert-St Louis

Tue 2/18

4:00 pm-9:00 am

1 stop16h 00m

$268

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Sat 1/11

2:27 pm-11:27 pm

1 stop10h 00m

Lambert-St Louis

Sun 1/12

8:12 am-2:05 pm

1 stop4h 53m

$274

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Thu 3/13

6:00 am-11:29 am

1 stop6h 29m

Lambert-St Louis

Sun 3/16

6:00 am-12:58 pm

1 stop5h 58m

$409

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Sun 2/16

5:20 am-2:42 pm

1 stop10h 22m

Lambert-St Louis

Tue 2/18

4:00 pm-8:15 pm

2 stops27h 15m

$446

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Mon 1/27

4:08 pm-1:53 pm

2 stops22h 45m

Lambert-St Louis

Thu 1/30

2:49 pm-3:08 pm

2 stops23h 19m

$562

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Wed 5/21

9:11 pm-8:10 pm

2 stops23h 59m

$107

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Wed 5/7

9:39 pm-6:27 pm

1 stop21h 48m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 15 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy2 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Atlanta-St. Louis flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

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.

Travel insights for flights from Atlanta to St. Louis

Get recent, data-driven insights about flights from Atlanta to St. Louis including ideal travel times, pricing trends, and more.

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 December 13, 2024.

Booking 89 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 December 21, 2024.

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 afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 12% 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 December 16, 2024.

Travelers seeking maximum savings on their Atlanta to St. Louis flight should consider departing on Wednesday evenings 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 December 21, 2024.

The most flights from ATL to STL are scheduled on a Friday (42 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 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 December 21, 2024.
To help decide which airline to fly from Atlanta to St. Louis, see what other customers have to say about American Airlines, Alaska Airlines and Frontier. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,814 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,814 reviews
Southwest
8.1
Very good
4,814 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,540 reviews
Southwest
8.1
Very good
4,814 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,597 reviews
Southwest
8.1
Very good
4,814 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,039 reviews
Southwest
8.1
Very good
4,814 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,814 reviews

Boarding

8.2

Food

7.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 40m for a nonstop flight. There are 21 flights from Hartsfield-Jackson to St. Louis per day from 6 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 6 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 $256, United Airlines will fly you from Atlanta to St. Louis and back. In addition to United Airlines, 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 $257 and $258, respectively. Users have found that United Airlines is 18% 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 Spirit Airlines, with whom users have recently found tickets for as low as $111. However, be on the lookout for offers from Southwest and United Airlines, 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 WestJet (95%), Aeromexico (94%) or KLM (92%) 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 $142. On average you can expect to pay $415. The most popular route, (Atlanta Hartsfield-Jackson - Lambert-St Louis), can usually be booked for $170.

  • 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

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Alternative routes for Atlanta to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Atlanta to St. Louis

Discover the top 6 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 December 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$62Average$153FlexibilityNo cancel feeOn-time65%
FrontierCheapest$99Average$156FlexibilityNo cancel feeOn-time62%
Southern / MokuleleCheapest$189Average$236FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$219Average$323FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$238Average$397FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$242Average$333FlexibilityNo cancel feeOn-time63%
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