$27+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — STL
Jun 4 — Jun 111
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Atlanta to St. Louis with Cheapflights
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Atlanta Hartsfield-Jackson to Lambert-St Louis are usually found in August or July, booked 46 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from Atlanta to St. Louis
Cheapest
Best
Last-minute
One-way
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 May 5, 2026.
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 May 5, 2026.
This Frontier deal was found by Cheapflights users on 5/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:43 pm
ATL
- STL
Nonstop1h 47m
Frontier
Sat 8/225:33 pm
STL
- ATL
Nonstop1h 52m
Frontier
Deal found 5/1![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/304:43 pm
ATL
- STL
Nonstop1h 47m
Frontier
Sun 7/56:33 pm
STL
- ATL
Nonstop2h 03m
Frontier
Deal found 5/2![Frontier logo]()
$111
This Priceline deal was found by Cheapflights users on 5/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:05 am
ATL
- STL
Nonstop1h 52m
Frontier
Sun 8/166:33 pm
STL
- ATL
Nonstop2h 03m
Frontier
Deal found 5/1![Frontier logo]()
$112
This Frontier deal was found by Cheapflights users on 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Mon 6/811:38 am
STL
- ATL
1 stop6h 24m
Frontier
Deal found 5/4![Frontier logo]()
$113
This Super.com deal was found by Cheapflights users on 5/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Fri 5/295:27 pm
STL
- ATL
Nonstop1h 47m
Frontier
Deal found 5/2![Frontier logo]()
$116
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.
Wed 5/278:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Wed 6/38:08 pm
STL
- ATL
1 stop7h 50m
Frontier
Deal found 4/30![Frontier logo]()
$117
This Frontier deal was found by Cheapflights users on 5/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:43 pm
ATL
- STL
Nonstop1h 50m
Frontier
Sat 6/68:08 pm
STL
- ATL
1 stop7h 50m
Frontier
Deal found 5/3![Frontier logo]()
$118
This Delta deal was found by Cheapflights users on 5/1. 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.
Thu 6/48:59 pm
ATL
- STL
Nonstop1h 39m
Delta
Sun 6/76:00 am
STL
- ATL
Nonstop1h 38m
Delta
Deal found 5/1![Delta logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:33 pm
ATL
- STL
1 stop7h 50m
Frontier
Mon 6/85:27 pm
STL
- ATL
Nonstop1h 47m
Frontier
Deal found 5/5![Frontier logo]()
$121
This Cheapflightsfares deal was found by Cheapflights users on 5/5. 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.
Tue 5/265:53 pm
ATL
- STL
1 stop7h 04m
Frontier
Tue 6/96:31 pm
STL
- ATL
Nonstop2h 14m
Frontier
Deal found 5/5![Frontier logo]()
$122
This Frontier deal was found by Cheapflights users on 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:40 am
ATL
- STL
1 stop12h 43m
Frontier
Sun 6/146:31 pm
STL
- ATL
Nonstop2h 14m
Frontier
Deal found 5/4![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 5/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Tue 5/266:33 pm
STL
- ATL
Nonstop1h 50m
Frontier
Deal found 5/3![Frontier logo]()
$124
Best flights from Atlanta to St. LouisDiscover 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 May 5, 2026.
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 May 5, 2026.
This Delta deal was found by Cheapflights users on 5/2. 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.
Sun 6/217:35 am
ATL
- STL
Nonstop1h 41m
Delta
Sun 6/287:12 pm
STL
- ATL
Nonstop1h 48m
Delta
Deal found 5/2![Delta logo]()
$119
This Southwest deal was found by Cheapflights users on 5/3. 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.
Fri 6/126:50 am
ATL
- STL
Nonstop1h 40m
Southwest
Sun 6/144:40 pm
STL
- ATL
1 stop6h 35m
Southwest
Deal found 5/3![Southwest logo]()
$138
This Delta deal was found by Cheapflights users on 5/4. 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 6/511:13 pm
ATL
- STL
Nonstop1h 46m
Delta
Sun 6/76:00 am
STL
- ATL
Nonstop1h 38m
Delta
Deal found 5/4![Delta logo]()
$119
This Southwest deal was found by Cheapflights users on 5/4. 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.
Sat 6/610:50 am
ATL
- STL
2 stops8h 10m
Southwest
Mon 6/810:00 am
STL
- ATL
Nonstop1h 35m
Southwest
Deal found 5/4![Southwest logo]()
$152
This Delta deal was found by Cheapflights users on 5/1. 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.
Sat 7/181:49 pm
ATL
- STL
Nonstop1h 38m
Delta
Sat 7/2510:16 am
STL
- ATL
Nonstop1h 38m
Delta
Deal found 5/1![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 5/4. 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 5/276:20 am
ATL
- STL
2 stops7h 30m
Southwest
Mon 6/14:30 pm
STL
- ATL
Nonstop1h 35m
Southwest
Deal found 5/4![Southwest logo]()
$163
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2911:10 pm
ATL
- STL
Nonstop1h 46m
Delta
Thu 7/210:51 am
STL
- ATL
Nonstop1h 35m
Delta
Deal found 4/30![Delta logo]()
$157
This Southwest deal was found by Cheapflights users on 5/2. 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.
Mon 6/81:15 pm
ATL
- STL
1 stop6h 45m
Southwest
Mon 6/158:05 pm
STL
- ATL
Nonstop1h 35m
Southwest
Deal found 5/2![Southwest logo]()
$169
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:20 am
ATL
- STL
2 stops7h 30m
Southwest
Wed 6/310:25 am
STL
- ATL
1 stop6h 00m
Southwest
Deal found 4/30![Southwest logo]()
$213
This Southwest deal was found by Cheapflights users on 5/2. 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.
Tue 6/26:20 am
ATL
- STL
2 stops7h 30m
Southwest
Sat 6/1312:50 pm
STL
- ATL
1 stop3h 55m
Southwest
Deal found 5/2![Southwest logo]()
$242
Last-minute flights from Atlanta to St. LouisDiscover last-minute flight deals from Atlanta to St. Louis. Data last updated May 5, 2026 and is based on user searches.
Discover last-minute flight deals from Atlanta to St. Louis. Data last updated May 5, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 5/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Tue 5/266:33 pm
STL
- ATL
Nonstop1h 50m
Frontier
Deal found 5/3![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 5/5. 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.
Tue 5/265:53 pm
ATL
- STL
1 stop7h 04m
Frontier
Tue 6/96:31 pm
STL
- ATL
Nonstop2h 14m
Frontier
Deal found 5/5![Frontier logo]()
$122
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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.
Tue 5/265:53 pm
ATL
- STL
1 stop7h 04m
Frontier
Sat 5/305:27 pm
STL
- ATL
Nonstop1h 47m
Frontier
Deal found 5/1![Frontier logo]()
$128
This Super.com deal was found by Cheapflights users on 5/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Fri 5/295:27 pm
STL
- ATL
Nonstop1h 47m
Frontier
Deal found 5/2![Frontier logo]()
$116
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.
Wed 5/278:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Wed 6/38:08 pm
STL
- ATL
1 stop7h 50m
Frontier
Deal found 4/30![Frontier logo]()
$117
This Frontier deal was found by Cheapflights users on 5/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:43 pm
ATL
- STL
Nonstop1h 50m
Frontier
Sat 6/68:08 pm
STL
- ATL
1 stop7h 50m
Frontier
Deal found 5/3![Frontier logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:33 pm
ATL
- STL
1 stop7h 50m
Frontier
Mon 6/85:27 pm
STL
- ATL
Nonstop1h 47m
Frontier
Deal found 5/5![Frontier logo]()
$121
This Delta deal was found by Cheapflights users on 5/1. 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.
Thu 6/48:59 pm
ATL
- STL
Nonstop1h 39m
Delta
Sun 6/76:00 am
STL
- ATL
Nonstop1h 38m
Delta
Deal found 5/1![Delta logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Mon 6/811:38 am
STL
- ATL
1 stop6h 24m
Frontier
Deal found 5/4![Frontier logo]()
$126
This Frontier deal was found by Cheapflights users on 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Mon 6/811:38 am
STL
- ATL
1 stop6h 24m
Frontier
Deal found 5/4![Frontier logo]()
$113
This Frontier deal was found by Cheapflights users on 5/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:40 am
ATL
- STL
1 stop12h 43m
Frontier
Sun 6/146:31 pm
STL
- ATL
Nonstop2h 14m
Frontier
Deal found 5/4![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/304:43 pm
ATL
- STL
Nonstop1h 47m
Frontier
Sun 7/56:33 pm
STL
- ATL
Nonstop2h 03m
Frontier
Deal found 5/2![Frontier logo]()
$111
One-way flights from Atlanta to St. LouisSearch for one-way flight options from Atlanta to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
Search for one-way flight options from Atlanta to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Deal found 5/1![Frontier logo]()
$27
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/258:05 am
ATL
- STL
Nonstop1h 50m
Frontier
Deal found 5/4![Frontier logo]()
$33
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:05 am
ATL
- STL
Nonstop1h 52m
Frontier
Deal found 5/5![Frontier logo]()
$36
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:05 am
ATL
- STL
Nonstop1h 47m
Frontier
Deal found 5/2![Frontier logo]()
$54
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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.
Sun 8/24:43 pm
ATL
- STL
Nonstop1h 54m
Frontier
Deal found 5/1![Frontier logo]()
$55
This Delta deal was found by Cheapflights users on 5/5. 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.
Sat 8/18:25 am
ATL
- STL
Nonstop1h 41m
Delta
Deal found 5/5![Delta logo]()
$59
This Delta deal was found by Cheapflights users on 5/5. 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.
Sun 6/217:35 am
ATL
- STL
Nonstop1h 41m
Delta
Deal found 5/5![Delta logo]()
$60
This Delta deal was found by Cheapflights users on 5/1. 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 7/311:10 pm
ATL
- STL
Nonstop1h 46m
Delta
Deal found 5/1![Delta logo]()
$69
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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.
Tue 5/2612:33 pm
ATL
- STL
1 stop7h 50m
Frontier
Deal found 5/4![Frontier logo]()
$70
Find 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 May 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $111 (Kiwi.com) |
One-way from | $27 (Kiwi.com) |
Popular in | May |
Cheapest in | August |
Average price | $269 |
Good round-trip deal | $189 or less |
Good one-way deal | $100 or less |
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 May 5, 2026.
Use the filters below to find and compare flights from Atlanta to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Sun 6/21
7:35 am-8:16 am
Nonstop1h 41m
Lambert-St Louis
Sun 6/28
7:12 pm-10:00 pm
Nonstop1h 48m
$119
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Fri 6/5
11:13 pm-11:59 pm
Nonstop1h 46m
Lambert-St Louis
Sun 6/7
6:00 am-8:38 am
Nonstop1h 38m
$119
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Fri 6/12
6:50 am-7:30 am
Nonstop1h 40m
Lambert-St Louis
Sun 6/14
4:40 pm-12:15 am
1 stop6h 35m
$138
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Sat 6/6
10:50 am-6:00 pm
2 stops8h 10m
Lambert-St Louis
Mon 6/8
10:00 am-12:35 pm
Nonstop1h 35m
$152
Quickest round-trip
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Sat 7/18
1:49 pm-2:27 pm
Nonstop1h 38m
Lambert-St Louis
Sat 7/25
10:16 am-12:54 pm
Nonstop1h 38m
$157
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Mon 6/29
11:10 pm-11:56 pm
Nonstop1h 46m
Lambert-St Louis
Thu 7/2
10:51 am-1:26 pm
Nonstop1h 35m
$157
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Wed 5/27
6:20 am-12:50 pm
2 stops7h 30m
Lambert-St Louis
Mon 6/1
4:30 pm-7:05 pm
Nonstop1h 35m
$163
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Mon 6/8
1:15 pm-7:00 pm
1 stop6h 45m
Lambert-St Louis
Mon 6/15
8:05 pm-10:40 pm
Nonstop1h 35m
$169
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Wed 5/27
6:20 am-12:50 pm
2 stops7h 30m
Lambert-St Louis
Wed 6/3
10:25 am-5:25 pm
1 stop6h 00m
$213
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Tue 6/2
6:20 am-12:50 pm
2 stops7h 30m
Lambert-St Louis
Sat 6/13
12:50 pm-5:45 pm
1 stop3h 55m
$242
Showing 1-10 of 21 resultsSorted by cheapest first
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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
ATL-STL
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
Prices
Airlines
How far ahead should I book a flight from Atlanta to St. Louis?
Booking 45 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 $197). Flying from Atlanta to St. Louis in May is currently the most expensive (average of $269). 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 May 5, 2026.
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 evening tend to be the most expensive. A flight at noon could potentially save you up to 26% 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 May 2, 2026.
Travelers seeking maximum savings on their Atlanta to St. Louis flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Atlanta to St. Louis flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Atlanta to St. Louis trip
Our travel experts
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 May 5, 2026.
Read through reviews of airlines operating flights from Atlanta to St. Louis, such as Southwest,Delta, andFrontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Comfort
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Atlanta
Popular flights
St. Louis flight routes
Alternative routes for Atlanta to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Atlanta to St. Louis by cabin class
Find flights from Atlanta to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Atlanta and St. Louis flights
Browse other Atlanta and St. Louis flight options. Last updated on May 5, 2026.
Other flights from Atlanta
Browse through other flights departing from Atlanta. Flights are based on user searches made on Cheapflights and were last updated on May 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 5, 2026.
Top 3 airlines flying from Atlanta to St. Louis
Discover the top 3 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 May 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$153 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$159 | Average$279 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$187 | Average$312 | FlexibilityNo cancel fee | On-time63% |