What is the cheapest airline that flies from Lambert-St Louis to Atlanta Hartsfield-Jackson?

Southwest and Delta are the most popular carriers operating from Lambert-St Louis to Atlanta Hartsfield-Jackson

What airlines fly to Atlanta?

Frontier, Delta and Southwest are the top three most popular airlines that fly to Atlanta from St. Louis according to our data. Frontier is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Atlanta. Keep in mind that there are 4 different airlines that fly to Atlanta on a routine basis, so you have a few additional options to choose from.

How many flights depart from St. Louis to Atlanta on average per day?

33 flights are operational daily from St. Louis to Atlanta as of July 2026. The most popular departure time for this route is 3:00PM, with 45% of flights per day taking off in the afternoon.

How many flights depart from St. Louis to Atlanta on average per week?

As of July 2026, there are 236 flights per week flying from St. Louis to Atlanta. The most common day of the week flights depart is Mon, with 19% of flights taking off on this day.

When did momondo last update prices for flights from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport?

Prices for flights from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport refresh daily.

How many operators does momondo search for flights from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport?

There are 4 operators available for flights from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport as of July 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport.

What documentation or ID do you need to fly to Atlanta Hartsfield-Jackson Airport?

The travel and health documents required for your trip to Atlanta Hartsfield-Jackson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Atlanta Hartsfield-Jackson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$23 Cheap Flights from St. Louis to Atlanta in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Atlanta

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:29 pm - 5:10 pm

STL

ATL

1h 41mnonstop

12:25 pm - 1:10 pm

ATL

STL

1h 45mnonstop

$58Frontier

Fri, Sep 11 - Fri, Sep 18

10:35 am - 1:15 pm

STL

ATL

1h 40mnonstop

8:50 am - 9:40 am

ATL

STL

1h 50mnonstop

$59Frontier

Fri, Oct 16 - Sun, Oct 18

7:18 pm - 10:00 pm

STL

ATL

1h 42mnonstop

3:47 pm - 4:32 pm

ATL

STL

1h 45mnonstop

$117Delta

Tue, Dec 1 - Wed, Dec 16

1:04 pm - 3:49 pm

STL

ATL

1h 45mnonstop

11:15 am - 11:56 am

ATL

STL

1h 41mnonstop

$117Delta

Sat, Aug 22 - Sat, Aug 29

10:20 am - 12:50 pm

STL

ATL

1h 30mnonstop

2:20 pm - 3:00 pm

ATL

STL

1h 40mnonstop

$117Southwest

Wed, Oct 21 - Wed, Oct 21

8:30 am - 11:00 am

STL

ATL

1h 30mnonstop

8:45 am - 9:25 am

ATL

STL

1h 40mnonstop

$117Southwest

Sat, Sep 19 - Sat, Sep 26

3:25 pm - 8:48 pm

STL

ATL

4h 23m

1 stop

8:13 am - 1:02 pm

ATL

STL

5h 49m

1 stop

$159American Airlines

Wed, Aug 26 - Wed, Sep 2

5:42 am - 12:40 pm

STL

ATL

5h 58m

1 stop

6:00 am - 9:32 am

ATL

STL

4h 32m

1 stop

$159American Airlines

Sat, Aug 15 - Mon, Aug 17

8:00 am - 1:37 pm

STL

ATL

4h 37m

1 stop

5:10 pm - 9:21 pm

ATL

STL

5h 11m

1 stop

$193United Airlines

Thu, Oct 8 - Mon, Oct 12

4:57 pm - 7:56 pm

STL

ATL

1h 59mnonstop

8:05 am - 1:21 pm

ATL

STL

30h 16m

3 stops

$194Multiple Airlines

Mon, Aug 17 - Wed, Aug 19

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Delta flights from St. Louis to Atlanta

Our best Delta deals on St. Louis to Atlanta flight tickets

Delta

Sep 26

STL5:46 pmLambert-St Louis

1h 43m

ATL8:29 pmAtlanta Hartsfield-Jackson

Sep 27

ATL7:19 pmAtlanta Hartsfield-Jackson

1h 39m

STL7:58 pmLambert-St Louis

$127

Delta

Aug 20

STL12:52 pmLambert-St Louis

1h 41m

ATL3:33 pmAtlanta Hartsfield-Jackson

Aug 20

ATL11:15 pmAtlanta Hartsfield-Jackson

1h 43m

STL11:58 pmLambert-St Louis

$137

Delta

Aug 11

STL9:15 amLambert-St Louis

1h 38m

ATL11:53 amAtlanta Hartsfield-Jackson

Aug 11

ATL5:45 pmAtlanta Hartsfield-Jackson

1h 42m

STL6:27 pmLambert-St Louis

$197

Frontier flights from St. Louis to Atlanta

Our best Frontier deals on St. Louis to Atlanta flight tickets

Frontier

Sep 11

STL2:29 pmLambert-St Louis

1h 41m

ATL5:10 pmAtlanta Hartsfield-Jackson

Sep 18

ATL12:25 pmAtlanta Hartsfield-Jackson

1h 45m

STL1:10 pmLambert-St Louis

$58

Frontier

Oct 16

STL10:35 amLambert-St Louis

1h 40m

ATL1:15 pmAtlanta Hartsfield-Jackson

Oct 18

ATL8:50 amAtlanta Hartsfield-Jackson

1h 50m

STL9:40 amLambert-St Louis

$59

Frontier

Aug 23

STL6:17 pmLambert-St Louis

2h 03m

ATL9:20 pmAtlanta Hartsfield-Jackson

Aug 30

ATL4:28 pmAtlanta Hartsfield-Jackson

1h 54m

STL5:22 pmLambert-St Louis

$60

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 9/11

2:29 pm-5:10 pm

Nonstop1h 41m

Atlanta Hartsfield-Jackson

Fri 9/18

12:25 pm-1:10 pm

Nonstop1h 45m

$58

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 10/16

10:35 am-1:15 pm

Nonstop1h 40m

Atlanta Hartsfield-Jackson

Sun 10/18

8:50 am-9:40 am

Nonstop1h 50m

$59

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Tue 12/1

7:18 pm-10:00 pm

Nonstop1h 42m

Atlanta Hartsfield-Jackson

Wed 12/16

3:47 pm-4:32 pm

Nonstop1h 45m

$117

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Sat 8/22

1:04 pm-3:49 pm

Nonstop1h 45m

Atlanta Hartsfield-Jackson

Sat 8/29

11:15 am-11:56 am

Nonstop1h 41m

$117

Quickest round-trip

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Wed 10/21

10:20 am-12:50 pm

Nonstop1h 30m

Atlanta Hartsfield-Jackson

Wed 10/21

2:20 pm-3:00 pm

Nonstop1h 40m

$117

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Sat 9/19

8:30 am-11:00 am

Nonstop1h 30m

Atlanta Hartsfield-Jackson

Sat 9/26

8:45 am-9:25 am

Nonstop1h 40m

$117

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Wed 8/26

3:25 pm-8:48 pm

1 stop4h 23m

Atlanta Hartsfield-Jackson

Wed 9/2

8:13 am-1:02 pm

1 stop5h 49m

$159

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Sat 8/15

5:42 am-12:40 pm

1 stop5h 58m

Atlanta Hartsfield-Jackson

Mon 8/17

6:00 am-9:32 am

1 stop4h 32m

$159

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Thu 10/8

8:00 am-1:37 pm

1 stop4h 37m

Atlanta Hartsfield-Jackson

Mon 10/12

5:10 pm-9:21 pm

1 stop5h 11m

$193

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Mon 8/17

4:57 pm-7:56 pm

Nonstop1h 59m

Atlanta Hartsfield-Jackson

Wed 8/19

8:05 am-1:21 pm

3 stops30h 16m

$194

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Atlanta

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between St. Louis and Atlanta?

Prices are currently low for flights on this route.

Typical prices usually range from $118 to $306.
The lowest price recently found on this route was $58.

What is the cheapest month to fly to Atlanta?

The month of August is, on average, the cheapest month to fly to Atlanta from St. Louis, with most prices found around $177. If you aren’t able to travel to Atlanta during the month of August, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $177.

What is the cheapest day to depart on your flight to Atlanta?

Our data shows that Thursday is the least expensive day to fly to Atlanta. Tickets to fly out on this day can be as low as $343. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Atlanta on Monday is $520.

What is the cheapest time of day to depart on your flight to Atlanta?

The cheapest time of day to fly to Atlanta is in the afternoon when flights can be purchased for as low as $364. Flights to Atlanta are more costly at noon, with an average ticket price of $541. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Lambert-St Louis to Atlanta Hartsfield-Jackson flight route?

Fly from Lambert-St Louis to Atlanta Hartsfield-Jackson for the best Lambert-St Louis - Atlanta Hartsfield-Jackson flight prices

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

You are more likely to see cheaper flights to Atlanta from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Atlanta for around $220 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Atlanta from St. Louis for as low as $150 on momondo.

What cabin class options are available on St. Louis to Atlanta flights?

There are 4 cabin classes available to choose from on St. Louis to Atlanta flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have St. Louis to Atlanta flight prices changed over time?

As of July 2026, prices for St. Louis to Atlanta flights are approximately 72% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Atlanta

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Atlanta according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Atlanta (STL to ATL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Atlanta

Best Price Found	$171
Fastest flight time	1h 30m
Direct flights	Every day
Airports in Atlanta	1 airport

The best one-way flight to Atlanta from St. Louis in the past 72 hours is $171. The best round-trip flight deal from St. Louis to Atlanta found on momondo in the last 72 hours is $285.

The fastest flight from St. Louis to Atlanta takes 1h 30m

Direct flights go from St. Louis to Atlanta every day.

There is 1 airport in Atlanta. From St. Louis there are direct flights to Atlanta Hartsfield-Jackson (ATL).

Search flight deals

Frequently asked questions about flying from St. Louis to Atlanta

How far is Lambert-St Louis to Atlanta Hartsfield-Jackson by plane?
A flight from Lambert-St Louis to Atlanta Hartsfield-Jackson will travel around 466.6 mi. Typically, this will take 1h 30m by plane in normal conditions.
When did momondo last update prices for flights from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport?
Prices for flights from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport?
There are 4 operators available for flights from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport as of July 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Atlanta Hartsfield-Jackson Airport.
What documentation or ID do you need to fly to Atlanta Hartsfield-Jackson Airport?
The travel and health documents required for your trip to Atlanta Hartsfield-Jackson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Atlanta Hartsfield-Jackson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from St. Louis to Atlanta?
momondo data reveals that the most frequently booked plane model on the route from St. Louis to Atlanta is Boeing 737-900, representing 18.86% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 14.52%, Airbus A321neo at 13.74%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 13.54%.
What is the most popular airline from St. Louis to Atlanta?
Based on momondo bookings for flights between St. Louis and Atlanta, the leading airline is Frontier, making up 46% of the total bookings. Other popular airlines include Delta with 38%, Southwest with 15%, and American Airlines with 1%.

Best airlines flying from St. Louis to Atlanta

Compare and see reviews for airlines that fly from St. Louis to Atlanta with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $50	Free Cancellation	Rating 5.6 2,749 reviews	Search Frontier flights
Delta	PriceFrom $117	Free Cancellation	Rating 7.8 8,492 reviews	Search Delta flights
Southwest	PriceFrom $173	Free Cancellation	Rating 8.0 4,228 reviews	Search Southwest flights
American Airlines	PriceFrom $206	Free Cancellation	Rating 7.1 11,846 reviews	Search American Airlines flights

Southwest Flights From St. Louis to Atlanta
Southwest operates around 15 flights from St. Louis to Atlanta every week. The average price of these flights found in the last 72 hours has been $307, but momondo users have found Southwest deals from St. Louis to Atlanta from as low as $173 round-trip. Southwest has been scored 8.0/10 in 4,228 reviews.
Delta Flights From St. Louis to Atlanta
Across 8,491 Delta reviews on momondo, the average score is 7.8/10. Delta flies from St. Louis to Atlanta about 28 times each week, with ticket deals ranging from $117 to $279. Price data is based on momondo searches in the last 72 hours.

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Warner Robins

Blue Ridge

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Conyers

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Dahlonega

Auburn

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Atlanta?

Finding the right flight to Atlanta from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Atlanta quick and easy, saving you time and money.

Can I find flights from St. Louis to Atlanta with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Atlanta from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Atlanta?

momondo provides multiple filters to help you find the best flight to Atlanta from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Atlanta right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Atlanta flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from St. Louis to Atlanta from $23

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Atlanta departing on 10/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from St. Louis to Atlanta

Our best Delta deals on St. Louis to Atlanta flight tickets

Frontier flights from St. Louis to Atlanta

Our best Frontier deals on St. Louis to Atlanta flight tickets

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How to get the cheapest flight ticket from St. Louis to Atlanta

What is the typical price of a round-trip flight between St. Louis and Atlanta?

What is the cheapest month to fly to Atlanta?

What is the cheapest day to depart on your flight to Atlanta?

What is the cheapest time of day to depart on your flight to Atlanta?

What is the cheapest Lambert-St Louis to Atlanta Hartsfield-Jackson flight route?

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

What cabin class options are available on St. Louis to Atlanta flights?

How have St. Louis to Atlanta flight prices changed over time?

What is the cheapest airline that flies from Lambert-St Louis to Atlanta Hartsfield-Jackson?

What airlines fly to Atlanta?

How many flights depart from St. Louis to Atlanta on average per day?

How many flights depart from St. Louis to Atlanta on average per week?

When to book flights from St. Louis to Atlanta

Cheap St. Louis to Atlanta (STL to ATL) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Atlanta

Frequently asked questions about flying from St. Louis to Atlanta

Best airlines flying from St. Louis to Atlanta

Compare and see reviews for airlines that fly from St. Louis to Atlanta with momondo

Traveling to a place near Atlanta?

Why use momondo?

An easier way to manage your Atlanta trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Georgia

Fly your favorite airline to Atlanta

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Atlanta. Availability may vary depending on flight origin and airline.

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