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

This flight path from Atlanta Hartsfield-Jackson to Lambert-St Louis was viewed by 34 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 $102, 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 Spirit Airlines and Delta - these airlines can fly you to your destination from $126 and $147, respectively. Users have found that Frontier is 65% 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 $29. 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.

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.

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).

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

The cheapest flight price from Atlanta to St. Louis is $93. On average you can expect to pay $346. The most popular route, (Atlanta Hartsfield-Jackson - Lambert-St Louis), can usually be booked for $147.

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 Frontier (87%), WestJet (78%) or Aeromexico (77%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Atlanta to St. Louis?

Consider Southern / Mokulele, American Airlines or Delta when booking your flight. These represent the most popular airlines when flying from Atlanta to St. Louis.

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

Travelers have found that booking a Wednesday departure is the best way to save up to 30% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

Find a great deal and save up to 79% by booking at least 60 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Atlanta to St. Louis within the next two weeks, with the cheapest ticket starting at $343.

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

Flights from Atlanta to St. Louis lean towards being more expensive in December. Prices are generally better when you fly from Atlanta to St. Louis in July, with the cheapest ticket starting at $93.

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 36m for a nonstop flight. There are 32 flights from Hartsfield-Jackson to St. Louis per day from 5 airlines.

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.

$29+ Flights from Atlanta to St. Louis

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

Cheap flight deals from Atlanta to St. Louis

Round-trip from	$102 (Cheapflightsfares)
One-way from	$29 (Cheapflightsfares)
Popular in	December
Cheapest in	July
Average price	$225
Good round-trip deal	$170 or less
Good one-way deal	$148 or less

From Atlanta Hartsfield-Jackson to Lambert-St Louis

Search Deals

One-way flight from Atlanta Hartsfield-Jackson to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($34 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Price to beat on a round-trip flight from Atlanta Hartsfield-Jackson to Lambert-St Louis.

Search Deals

Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Lambert-St Louis.

Search Deals

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 julho 30, 2025.

qui 9/182:16 pmATL - STL

Nonstop1h 48mFrontier

dom 9/214:00 pmSTL - ATL

Nonstop1h 44mFrontier

Deal found 7/29

$102

dom 8/105:45 amATL - STL

1 stop5h 07mMultiple Airlines

sáb 8/162:52 pmSTL - ATL

Nonstop1h 54mMultiple Airlines

Deal found 7/27

$119

seg 8/186:35 amATL - STL

1 stop7h 57mSpirit Airlines

seg 8/252:30 pmSTL - ATL

1 stop7h 35mSpirit Airlines

Deal found 7/28

$126

qui 8/288:35 amATL - STL

Nonstop1h 40mDelta

qui 9/43:42 pmSTL - ATL

Nonstop1h 43mDelta

Deal found 7/29

$147

Best flights from Atlanta to St. Louis
Discover carefully curated flight deals from Atlanta to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julho 30, 2025.

qui 9/182:16 pmATL - STL

Nonstop1h 48mFrontier

dom 9/214:00 pmSTL - ATL

Nonstop1h 44mFrontier

Deal found 7/29

$102

dom 8/105:45 amATL - STL

1 stop5h 07mMultiple Airlines

sáb 8/162:52 pmSTL - ATL

Nonstop1h 54mMultiple Airlines

Deal found 7/27

$119

seg 8/186:35 amATL - STL

1 stop7h 57mSpirit Airlines

seg 8/252:30 pmSTL - ATL

1 stop7h 35mSpirit Airlines

Deal found 7/28

$126

qui 8/288:35 amATL - STL

Nonstop1h 40mDelta

seg 9/16:00 amSTL - ATL

Nonstop1h 38mDelta

Deal found 7/27

$147

Last-minute flights from Atlanta to St. Louis
Discover last-minute flight deals from Atlanta to St. Louis. Data last updated julho 30, 2025 and is based on user searches.

qui 8/712:43 pmATL - STL

Nonstop1h 51mFrontier

dom 8/102:36 pmSTL - ATL

Nonstop1h 54mFrontier

Deal found 7/28

$110

qui 8/712:43 pmATL - STL

Nonstop1h 51mMultiple Airlines

seg 8/1110:47 amSTL - ATL

1 stop19h 50mMultiple Airlines

Deal found 7/27

$130

qui 8/75:45 amATL - STL

1 stop5h 07mSpirit Airlines

seg 8/1110:47 amSTL - ATL

1 stop7h 13mSpirit Airlines

Deal found 7/27

$164

dom 8/105:45 amATL - STL

1 stop5h 07mMultiple Airlines

sáb 8/162:52 pmSTL - ATL

Nonstop1h 54mMultiple Airlines

Deal found 7/27

$119

qui 8/1412:43 pmATL - STL

Nonstop1h 51mFrontier

dom 8/172:36 pmSTL - ATL

Nonstop1h 54mFrontier

Deal found 7/28

$103

seg 8/186:35 amATL - STL

1 stop7h 57mSpirit Airlines

seg 8/252:30 pmSTL - ATL

1 stop7h 35mSpirit Airlines

Deal found 7/28

$126

qui 8/288:35 amATL - STL

Nonstop1h 40mDelta

seg 9/16:00 amSTL - ATL

Nonstop1h 38mDelta

Deal found 7/27

$147

One-way flights from Atlanta to St. Louis
Search for one-way flight options from Atlanta to St. Louis. Find affordable one-way fares based on user searches. Data last updated julho 30, 2025.

qui 10/99:20 amATL - STL

Nonstop1h 47mFrontier

Deal found 7/28

$29

qui 8/216:35 amATL - STL

1 stop7h 57mSpirit Airlines

Deal found 7/28

$57

sex 9/57:20 pmATL - STL

Nonstop1h 45mSouthwest

Deal found 7/27

$74

qua 10/155:50 amATL - STL

1 stop5h 34mAmerican Airlines

Deal found 7/27

$93

Fly from

Fly to

Route

Depart

Return

Price

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

qui 9/18

2:16 pm-3:04 pm

Nonstop1h 48m

Lambert-St Louis

dom 9/21

4:00 pm-6:44 pm

Nonstop1h 44m

$102

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

dom 8/10

5:45 am-9:52 am

1 stop5h 07m

Lambert-St Louis

sáb 8/16

2:52 pm-5:46 pm

Nonstop1h 54m

$119

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

seg 8/18

6:35 am-1:32 pm

1 stop7h 57m

Lambert-St Louis

seg 8/25

2:30 pm-11:05 pm

1 stop7h 35m

$126

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

qui 8/28

8:35 am-9:15 am

Nonstop1h 40m

Lambert-St Louis

seg 9/1

6:00 am-8:38 am

Nonstop1h 38m

$147

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

qui 10/9

9:20 am-10:07 am

Nonstop1h 47m

$29

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

qui 8/21

6:35 am-1:32 pm

1 stop7h 57m

$57

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

sex 9/5

7:20 pm-8:05 pm

Nonstop1h 45m

$74

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

qua 10/15

5:50 am-10:24 am

1 stop5h 34m

$93

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

The best insider tips for Atlanta to St. Louis flights

Cheapflights partnered with top experts to bring you the best recommendations for your Atlanta to St. Louis trip

Airports

ATL

For a quicker security experience at ATL, try the South security area, often faster than the main one.

STL

Use the MetroLink for a convenient and economical ride from STL to downtown St. Louis in about 40 minutes.

Our travel experts

Chris Dong

Expert on ATL

Taryn White

Expert on STL

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?

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?

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 at noon could potentially save you up to 7% on airfare.

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

Travelers seeking maximum savings on their Atlanta to St. Louis flight should consider departing on Saturday 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

The most flights from ATL to STL are scheduled on a Monday (44 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Atlanta to St. Louis, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,241 reviews

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.

Southwest

8.0

Very good

4,241 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Delta

8.0

Very good

7,980 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Spirit Airlines

6.3

Okay

8,048 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Frontier

5.9

Fair

3,237 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Related info for your journey

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 36m for a nonstop flight. There are 32 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 34 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 $102, 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 Spirit Airlines and Delta - these airlines can fly you to your destination from $126 and $147, respectively. Users have found that Frontier is 65% 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 $29. 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 Frontier (87%), WestJet (78%) or Aeromexico (77%) 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 $93. On average you can expect to pay $346. The most popular route, (Atlanta Hartsfield-Jackson - Lambert-St Louis), can usually be booked for $147.
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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Top 5 airlines flying from Atlanta to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$91	Average$178	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$133	Average$283	FlexibilityNo cancel fee	On-time71%
Southern / Mokulele	Cheapest$194	Average$216	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$197	Average$312	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$197	Average$314	FlexibilityNo cancel fee	On-time63%

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$29+ 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Atlanta to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Cheap flight deals from Atlanta to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Atlanta to St. Louis

Cheapest flights from Atlanta to St. LouisExplore 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 julho 30, 2025.

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 julho 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Atlanta to St. Louis that are best for you.

The best insider tips for Atlanta to St. Louis flights

Cheapflights partnered with top experts to bring you the best recommendations for your Atlanta to St. Louis trip

Airports

ATL

STL

Our travel experts

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.

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 July 25, 2025.

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

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 julho 30, 2025.

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 July 27, 2025.

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 julho 30, 2025.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Atlanta to St. Louis, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

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

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

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

Traveling to a place near St. Louis?

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Alternative routes for Atlanta to St. Louis

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Top 5 airlines flying from Atlanta to St. Louis

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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 julho 30, 2025.