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Cheap flights from Atlanta to St. Louis from $54

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Atlanta to St. Louis departing on 3/17. 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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Find the cheapest flights from Atlanta to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Atlanta to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Atlanta to St. Louis.

Cheap last minute flights

Planning a quick getaway from Atlanta to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Atlanta to St. Louis

Find recent round-trip train or bus tickets from Atlanta to St. Louis.

All round-trip flight deals from Atlanta to St. Louis

The cheapest plane tickets from Atlanta to St. Louis found on KAYAK recently.
2:36 pm - 11:31 pmATL-STL
9h 55m1 stop
7:04 pm - 4:58 amSTL-ATL
8h 54m1 stop
$110Frontier
Find Deal
Tue, Feb 4 - Sat, Feb 15
10:29 pm - 11:31 pmATL-STL
26h 02m1 stop
8:31 pm - 6:03 amSTL-ATL
8h 32m1 stop
$117Frontier
Find Deal
Mon, Feb 3 - Mon, Feb 10
10:25 am - 11:10 amATL-STL
1h 45mnonstop
9:05 am - 11:40 amSTL-ATL
1h 35mnonstop
$235Southwest
Find Deal
Mon, Feb 10 - Wed, Feb 12
9:11 pm - 2:42 pmATL-STL
18h 31m1 stop
4:00 pm - 11:53 pmSTL-ATL
6h 53m1 stop
$239Spirit Airlines
Find Deal
Mon, Feb 17 - Thu, Feb 20
10:49 pm - 11:31 pmATL-STL
1h 42mnonstop
7:05 am - 9:43 amSTL-ATL
1h 38mnonstop
$242Delta
Find Deal
Wed, Apr 2 - Sat, Apr 5
8:50 am - 1:35 pmATL-STL
5h 45m1 stop
6:05 pm - 8:40 pmSTL-ATL
1h 35mnonstop
$245Southwest
Find Deal
Mon, Feb 10 - Wed, Feb 12
10:49 pm - 11:30 pmATL-STL
1h 41mnonstop
6:00 am - 8:37 amSTL-ATL
1h 37mnonstop
$247Delta
Find Deal
Sat, Apr 5 - Wed, Apr 9
6:07 pm - 2:42 pmATL-STL
21h 35m1 stop
4:00 pm - 9:08 amSTL-ATL
16h 08m1 stop
$265Spirit Airlines
Find Deal
Sat, Feb 15 - Tue, Feb 18
8:21 pm - 11:56 pmATL-STL
4h 35m1 stop
6:00 am - 1:03 pmSTL-ATL
6h 03m1 stop
$267American Airlines
Find Deal
Sat, Feb 15 - Tue, Feb 18
11:00 am - 4:21 pmATL-STL
6h 21m2 stops
3:43 pm - 10:07 pmSTL-ATL
5h 24m1 stop
$272American Airlines
Find Deal
Sat, Feb 22 - Mon, Feb 24
4:44 pm - 11:49 pmATL-STL
8h 05m1 stop
$54Frontier
Find Deal
Mon, Mar 17
5:53 pm - 11:46 pmATL-STL
6h 53m1 stop
$55Frontier
Find Deal
Tue, Apr 8
10:13 am - 2:42 pmATL-STL
5h 29m1 stop
$69Spirit Airlines
Find Deal
Thu, Feb 20
10:13 am - 2:42 pmATL-STL
5h 29m1 stop
$78Spirit Airlines
Find Deal
Tue, Feb 18
9:15 am - 10:05 amATL-STL
1h 50mnonstop
$119Southwest
Find Deal
Wed, Feb 19
5:15 pm - 6:00 pmATL-STL
1h 45mnonstop
$124Southwest
Find Deal
Mon, Apr 28
5:04 am - 8:09 amATL-STL
4h 05m1 stop
$138American Airlines
Find Deal
Thu, Mar 20
7:35 pm - 8:15 pmATL-STL
1h 40mnonstop
$174Delta
Find Deal
Sun, Apr 6
5:20 pm - 6:01 pmATL-STL
1h 41mnonstop
$178Delta
Find Deal
Wed, Feb 19
5:17 am - 10:38 amATL-STL
6h 21m1 stop
$245American Airlines
Find Deal
Sat, Mar 22
9:59 pm - 11:31 pmATL-STL
26h 32m1 stop
5:05 pm - 7:05 amSTL-ATL
13h 00m1 stop
$208Frontier
Find Deal
Sat, Jan 25 - Sat, Feb 8
10:29 pm - 9:16 amATL-STL
11h 47m1 stop
7:04 pm - 4:48 amSTL-ATL
8h 44m1 stop
$218Frontier
Find Deal
Fri, Jan 24 - Wed, Feb 26
1:24 pm - 9:16 amATL-STL
20h 52m1 stop
3:48 pm - 8:00 amSTL-ATL
15h 12m1 stop
Sun, Jan 26 - Tue, Jan 28
10:29 pm - 11:31 pmATL-STL
26h 02m1 stop
3:48 pm - 8:00 amSTL-ATL
15h 12m1 stop
Thu, Jan 23 - Tue, Jan 28
5:33 am - 2:43 pmATL-STL
10h 10m1 stop
3:48 pm - 7:06 pmSTL-ATL
26h 18m2 stops
$366Spirit Airlines
Find Deal
Sun, Jan 26 - Tue, Jan 28
5:33 am - 2:43 pmATL-STL
10h 10m1 stop
3:48 pm - 7:06 pmSTL-ATL
26h 18m2 stops
$386Spirit Airlines
Find Deal
Thu, Jan 23 - Tue, Jan 28
11:55 am - 12:40 pmATL-STL
1h 45mnonstop
3:15 pm - 5:50 pmSTL-ATL
1h 35mnonstop
$477Southwest
Find Deal
Fri, Jan 24 - Wed, Feb 26
11:55 am - 12:40 pmATL-STL
1h 45mnonstop
11:15 am - 5:15 pmSTL-ATL
5h 00m1 stop
$487Southwest
Find Deal
Fri, Jan 24 - Wed, Feb 26
5:34 pm - 10:20 pmATL-STL
5h 46m1 stop
4:36 pm - 3:01 pmSTL-ATL
21h 25m2 stops
$619United Airlines
Find Deal
Sun, Jan 26 - Mon, Jan 27
9:15 am - 4:25 pmATL-STL
8h 10m1 stop
11:30 am - 11:59 pmSTL-ATL
11h 29m2 stops
$751United Airlines
Find Deal
Fri, Jan 24 - Mon, Jan 27
10:25 am - 11:10 amATL-STL
1h 45mnonstop
9:05 am - 11:40 amSTL-ATL
1h 35mnonstop
$235Southwest
Find Deal
Mon, Feb 10 - Wed, Feb 12
10:49 pm - 11:31 pmATL-STL
1h 42mnonstop
7:05 am - 9:43 amSTL-ATL
1h 38mnonstop
$242Delta
Find Deal
Wed, Apr 2 - Sat, Apr 5
8:55 am - 9:37 amATL-STL
1h 42mnonstop
6:00 am - 8:38 amSTL-ATL
1h 38mnonstop
$247Delta
Find Deal
Fri, Apr 18 - Sun, Apr 20
11:00 am - 11:46 amATL-STL
1h 46mnonstop
7:15 am - 9:55 amSTL-ATL
1h 40mnonstop
$255Delta
Find Deal
Tue, Feb 18 - Tue, Feb 25
10:55 pm - 11:37 pmATL-STL
1h 42mnonstop
4:40 pm - 7:22 pmSTL-ATL
1h 42mnonstop
$268Delta
Find Deal
Mon, Feb 17 - Mon, Feb 24
6:40 pm - 7:25 pmATL-STL
1h 45mnonstop
1:50 pm - 4:25 pmSTL-ATL
1h 35mnonstop
$270Southwest
Find Deal
Wed, Mar 5 - Thu, Mar 6
8:55 am - 9:36 amATL-STL
1h 41mnonstop
4:30 pm - 7:05 pmSTL-ATL
1h 35mnonstop
$273Delta
Find Deal
Wed, Apr 9 - Sat, Apr 12
8:00 am - 8:45 amATL-STL
1h 45mnonstop
5:10 pm - 7:45 pmSTL-ATL
1h 35mnonstop
$274Southwest
Find Deal
Fri, Feb 21 - Mon, Feb 24
7:35 pm - 8:20 pmATL-STL
1h 45mnonstop
2:35 pm - 5:05 pmSTL-ATL
1h 30mnonstop
$283Southwest
Find Deal
Thu, Feb 20 - Sat, Feb 22
11:00 am - 11:46 amATL-STL
1h 46mnonstop
12:52 pm - 3:31 pmSTL-ATL
1h 39mnonstop
$293Delta
Find Deal
Sat, Feb 15 - Tue, Feb 18

Frontier flights from Atlanta to St. Louis

Our best Frontier deals on Atlanta to St. Louis flight tickets
Frontier
Feb 4
ATL2:36 pmAtlanta Hartsfield-Jackson
9h 55m
1 stop
STL11:31 pmLambert-St Louis
Feb 15
STL7:04 pmLambert-St Louis
8h 54m
1 stop
ATL4:58 amAtlanta Hartsfield-Jackson
Frontier
Feb 3
ATL10:29 pmAtlanta Hartsfield-Jackson
26h 02m
1 stop
STL11:31 pmLambert-St Louis
Feb 10
STL8:31 pmLambert-St Louis
8h 32m
1 stop
ATL6:03 amAtlanta Hartsfield-Jackson
Frontier
Feb 7
ATL10:29 pmAtlanta Hartsfield-Jackson
11h 47m
1 stop
STL9:16 amLambert-St Louis
Feb 10
STL8:31 pmLambert-St Louis
8h 32m
1 stop
ATL6:03 amAtlanta Hartsfield-Jackson

Spirit Airlines flights from Atlanta to St. Louis

Our best Spirit Airlines deals on Atlanta to St. Louis flight tickets
Spirit Airlines
Feb 17
ATL9:11 pmAtlanta Hartsfield-Jackson
18h 31m
1 stop
STL2:42 pmLambert-St Louis
Feb 20
STL4:00 pmLambert-St Louis
6h 53m
1 stop
ATL11:53 pmAtlanta Hartsfield-Jackson
Spirit Airlines
Feb 15
ATL6:07 pmAtlanta Hartsfield-Jackson
21h 35m
1 stop
STL2:42 pmLambert-St Louis
Feb 18
STL4:00 pmLambert-St Louis
16h 08m
1 stop
ATL9:08 amAtlanta Hartsfield-Jackson
Spirit Airlines
Jan 27
ATL10:24 pmAtlanta Hartsfield-Jackson
17h 19m
2 stops
STL2:43 pmLambert-St Louis
Feb 6
STL4:28 pmLambert-St Louis
6h 26m
1 stop
ATL11:54 pmAtlanta Hartsfield-Jackson

See travel insights to St. Louis from

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

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

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

In general, August is the cheapest month to fly from Atlanta to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $286. The month of October is another great option to travel to St. Louis, with average flight prices from Atlanta averaging around $293.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $290. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $391. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Atlanta in the evening is the least expensive time of day to depart. momondo users have found prices as low as $300 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $340 per ticket.

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

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

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

You are more likely to see cheaper flights to St. Louis from Atlanta when booking 24 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $316 when searching 24 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Atlanta for as low as $238 on momondo.

What cabin class options are available on Atlanta Hartsfield-Jackson to Lambert-St Louis flights?

There are 3 cabin classes available to choose from on Atlanta Hartsfield-Jackson to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of January 2025, prices for Atlanta to St. Louis flights are approximately 25% more expensive when compared to flights at the same time last year.

When to book flights from Atlanta to St. Louis

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

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

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

Best Price Found

$54

Fastest flight time

1h 40m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Atlanta in the past 72 hours is $54. The best round-trip flight deal from Atlanta to St. Louis found on momondo in the last 72 hours is $110.
The fastest flight from Atlanta to St. Louis takes 1h 40m
Direct flights go from Atlanta to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • How far is Atlanta Hartsfield-Jackson to Lambert-St Louis by plane?

    Atlanta Hartsfield-Jackson and Lambert-St Louis are 466.6 mi apart from one another. Flights usually cover this in 1h 40m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Atlanta Hartsfield-Jackson Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis 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 Lambert-St Louis 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 Atlanta to St. Louis?

  • What is the most popular airline from Atlanta to St. Louis?


Best airlines flying from Atlanta to St. Louis

Compare and see reviews for airlines that fly from Atlanta to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $51Free CancellationRating
6.3
8,116 reviews
Search Spirit Airlines flights
FrontierPriceFrom $99Free CancellationRating
6.0
3,443 reviews
Search Frontier flights
Southern / MokulelePriceFrom $189Free CancellationRating
6.6
28 reviews
Search Southern / Mokulele flights
American AirlinesPriceFrom $216Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $229Free CancellationRating
8.0
8,521 reviews
Search Delta flights
SouthwestPriceFrom $255Free CancellationRating
8.1
4,662 reviews
Search Southwest flights
  • Southwest Flights From Atlanta to St. Louis

    Across 19 Southwest flights from Atlanta to St. Louis this week, the average price was $332, with the best Southwest deals starting from $255 round-trip. 4,662 users have rated Southwest on momondo, with an average score of 8.1/10.

  • Delta Flights From Atlanta to St. Louis

    The best Delta deal for Atlanta to St. Louis flight tickets found on momondo in the last 72 hours was $229, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $330 round-trip. Delta operates 24 flights out of Atlanta into St. Louis in an average week, so prices vary by time and availability. 8,521 Delta reviews by users on momondo have scored the airline at 8.0/10.


Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Collinsville
Florissant
Maryland Heights
Hermann
Fairview Heights
Farmington
O'Fallon
Fenton
Alton
Wentzville
St. Peters
Eureka
Festus
Clayton
Edwardsville
Glencoe
Litchfield
Grafton

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Atlanta.

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

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

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

Once all potential Atlanta to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to St. Louis from Atlanta. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


An easier way to manage your St. Louis 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.

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