Atlanta to St. Louis (ATL-STL): nonstop upgrade & award space

Delta Air Lines and Frontier Airlines fly nonstop between Atlanta (ATL) and St. Louis (STL), roughly 59 times a week. The timetable below shows the nonstop scheduled at 1h 40m to 1h 50m for the 484 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines flights on this route, so you can see which departures have space before you book.

Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated October 22, 2026.

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Flights a week, 4-week average

1h 40m to 1h 50m

Scheduled flight time

484 mi

Nonstop distance

Free

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Atlanta to St. Louis flight schedule

Scheduled nonstop departures for ATL to STL starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Atlanta (ATL) to St. Louis (STL)
Date	Flight	Airline	Departs ATL	Arrives STL	Duration	Aircraft
Thu, Oct 22	DL 1571	Delta Air Lines	08:25	09:09	1h 44m	Boeing 737-900
Thu, Oct 22	F9 4473	Frontier Airlines	08:50	09:40	1h 50m	Airbus A321neo family
Thu, Oct 22	DL 1400	Delta Air Lines	10:05	10:51	1h 46m	Boeing 737-900
Thu, Oct 22	DL 1102	Delta Air Lines	12:40	13:20	1h 40m	Boeing 737-900
Thu, Oct 22	DL 543	Delta Air Lines	15:45	16:28	1h 43m	Boeing 737-900
Thu, Oct 22	DL 1393	Delta Air Lines	17:33	18:15	1h 42m	Boeing 737-900
Thu, Oct 22	DL 2833	Delta Air Lines	20:33	21:16	1h 43m	Boeing 737-900
Thu, Oct 22	DL 1403	Delta Air Lines	23:11	23:54	1h 43m	Boeing 737-900
Fri, Oct 23	DL 1571	Delta Air Lines	08:25	09:09	1h 44m	Boeing 737-900
Fri, Oct 23	DL 1400	Delta Air Lines	10:05	10:51	1h 46m	Boeing 737-900
Fri, Oct 23	DL 1102	Delta Air Lines	12:40	13:20	1h 40m	Boeing 737-900
Fri, Oct 23	DL 1485	Delta Air Lines	15:15	15:58	1h 43m	Boeing 737-900
Fri, Oct 23	DL 543	Delta Air Lines	15:45	16:28	1h 43m	Boeing 737-900
Fri, Oct 23	F9 4473	Frontier Airlines	16:51	17:40	1h 49m	Airbus A320neo
Fri, Oct 23	DL 1393	Delta Air Lines	17:33	18:15	1h 42m	Boeing 737-900
Fri, Oct 23	DL 2833	Delta Air Lines	20:33	21:16	1h 43m	Boeing 737-900
Fri, Oct 23	DL 1403	Delta Air Lines	23:11	23:54	1h 43m	Boeing 737-900
Sat, Oct 24	F9 4473	Frontier Airlines	08:50	09:40	1h 50m	Airbus A321neo family
Sat, Oct 24	DL 1571	Delta Air Lines	09:00	09:42	1h 42m	Boeing 737-900
Sat, Oct 24	DL 1400	Delta Air Lines	10:05	10:51	1h 46m	Boeing 737-900
Sat, Oct 24	DL 1102	Delta Air Lines	12:40	13:20	1h 40m	Boeing 737-900
Sat, Oct 24	DL 1485	Delta Air Lines	15:15	15:58	1h 43m	Boeing 737-900
Sat, Oct 24	DL 543	Delta Air Lines	15:45	16:28	1h 43m	Boeing 737-900
Sat, Oct 24	DL 2833	Delta Air Lines	19:15	19:56	1h 41m	Boeing 737-900
Sat, Oct 24	DL 1403	Delta Air Lines	23:11	23:54	1h 43m	Boeing 737-900
Sun, Oct 25	DL 1571	Delta Air Lines	08:25	09:09	1h 44m	Boeing 737-900
Sun, Oct 25	F9 4473	Frontier Airlines	08:50	09:40	1h 50m	Airbus A321neo family
Sun, Oct 25	DL 1400	Delta Air Lines	10:05	10:51	1h 46m	Boeing 737-900
Sun, Oct 25	DL 1102	Delta Air Lines	12:40	13:20	1h 40m	Boeing 737-900
Sun, Oct 25	DL 1485	Delta Air Lines	15:15	15:58	1h 43m	Boeing 737-900
Sun, Oct 25	DL 543	Delta Air Lines	15:45	16:28	1h 43m	Boeing 737-900
Sun, Oct 25	DL 1393	Delta Air Lines	17:33	18:15	1h 42m	Boeing 737-900
Sun, Oct 25	DL 2833	Delta Air Lines	20:40	21:23	1h 43m	Boeing 737-900
Sun, Oct 25	DL 1403	Delta Air Lines	23:11	23:54	1h 43m	Boeing 737-900
Mon, Oct 26	DL 1571	Delta Air Lines	08:25	09:09	1h 44m	Boeing 737-900
Mon, Oct 26	DL 1400	Delta Air Lines	10:05	10:51	1h 46m	Boeing 737-900
Mon, Oct 26	DL 1102	Delta Air Lines	12:40	13:20	1h 40m	Boeing 737-900
Mon, Oct 26	DL 1485	Delta Air Lines	15:15	15:58	1h 43m	Boeing 737-900
Mon, Oct 26	DL 543	Delta Air Lines	15:45	16:28	1h 43m	Boeing 737-900
Mon, Oct 26	F9 4473	Frontier Airlines	16:51	17:40	1h 49m	Airbus A320neo

Showing the first 40 of 60 scheduled ATL to STL departures across 7 days with service, starting October 22, 2026. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every ATL to STL date on the interactive map

Aircraft on the Atlanta to St. Louis nonstop

In the schedule table on this page, Delta Air Lines flies the Boeing 737-900, and Frontier Airlines flies the Airbus A321neo family and the Airbus A320neo. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on ATL to STL departures

2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for Atlanta to St. Louis to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

Delta Air Lines award space was open on all 14 Atlanta to St. Louis departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026.

See real availability

Confirmed upgrade or award seats by date on the ATL to STL departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See ATL to STL on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Atlanta to St. Louis nonstop

Carriers operating ATL to STL nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See ATL to STL on the interactive map →

Frequently asked questions about ATL to STL

How long is the flight from Atlanta (ATL) to St. Louis (STL)?

Scheduled flight times from Atlanta (ATL) to St. Louis (STL) run from 1h 40m to 1h 50m across the departures in the schedule table on this page. The nonstop covers about 484 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from ATL to STL?

Delta Air Lines and Frontier Airlines fly ATL to STL nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines.

How many flights a week are there from ATL to STL?

About 59 nonstop flights a week run between Atlanta (ATL) and St. Louis (STL) in the current schedule, operated by Delta Air Lines and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from ATL to STL depart?

Scheduled ATL to STL nonstops in the next 7 days with service leave between 08:25 and 23:11, local time at Atlanta. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate ATL to STL nonstop?

The schedule table on this page lists 9 flight numbers for ATL to STL nonstops, including DL 543, DL 1102, DL 1400, DL 1403, DL 1485, DL 1571, and DL 2833 on Delta Air Lines, and F9 4473 on Frontier Airlines. The table lists each departure by date with its times and aircraft.

How do I check upgrade or award availability on ATL to STL?

Open the ATL to STL route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss ATL to STL upgrade or award space

See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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