Atlanta to Buffalo (ATL-BUF): nonstop upgrade & award space
Delta Air Lines and Frontier Airlines fly nonstop between Atlanta (ATL) and Buffalo (BUF), roughly 28 times a week. The timetable below shows the nonstop scheduled at 1h 59m to 2h 10m for the 713 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 . Departure times come from 2LNR's schedule data; confirm with the airline before you book.
Updated .
Atlanta to Buffalo flight schedule
Scheduled nonstop departures for ATL to BUF starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.
Schedule data dated .
| Date | Flight | Airline | Departs ATL | Arrives BUF | Duration | Aircraft |
|---|---|---|---|---|---|---|
| DL 1384 | Delta Air Lines | 09:16 | 11:16 | 2h | Airbus A321 | |
| F9 1408 | Frontier Airlines | 10:49 | 12:59 | 2h 10m | Airbus A320neo | |
| DL 2266 | Delta Air Lines | 12:57 | 14:58 | 2h 1m | Airbus A321 | |
| DL 2050 | Delta Air Lines | 15:45 | 17:49 | 2h 4m | Airbus A321 | |
| DL 2334 | Delta Air Lines | 21:57 | 23:59 | 2h 2m | Airbus A321 | |
| DL 1384 | Delta Air Lines | 09:16 | 11:16 | 2h | Airbus A321 | |
| F9 1408 | Frontier Airlines | 10:49 | 12:59 | 2h 10m | Airbus A320neo | |
| DL 2266 | Delta Air Lines | 14:10 | 16:09 | 1h 59m | Airbus A321 | |
| DL 2334 | Delta Air Lines | 21:57 | 23:59 | 2h 2m | Airbus A321 | |
| DL 1384 | Delta Air Lines | 09:16 | 11:16 | 2h | Airbus A321 | |
| F9 1408 | Frontier Airlines | 10:08 | 12:18 | 2h 10m | Airbus A321neo family | |
| DL 2266 | Delta Air Lines | 12:57 | 14:58 | 2h 1m | Airbus A321 | |
| DL 2050 | Delta Air Lines | 15:45 | 17:49 | 2h 4m | Airbus A321 | |
| DL 2334 | Delta Air Lines | 21:57 | 23:59 | 2h 2m | Airbus A321 | |
| DL 1384 | Delta Air Lines | 09:16 | 11:16 | 2h | Airbus A321 | |
| F9 1408 | Frontier Airlines | 10:49 | 12:59 | 2h 10m | Airbus A320neo | |
| DL 2266 | Delta Air Lines | 12:57 | 14:58 | 2h 1m | Airbus A321 | |
| DL 2050 | Delta Air Lines | 15:45 | 17:49 | 2h 4m | Airbus A321 | |
| DL 2334 | Delta Air Lines | 21:57 | 23:59 | 2h 2m | Airbus A321 | |
| DL 1384 | Delta Air Lines | 09:16 | 11:16 | 2h | Airbus A321 | |
| DL 2266 | Delta Air Lines | 14:10 | 16:09 | 1h 59m | Airbus A321 | |
| DL 2334 | Delta Air Lines | 21:57 | 23:59 | 2h 2m | Airbus A321 | |
| DL 1384 | Delta Air Lines | 09:16 | 11:16 | 2h | Airbus A321 | |
| F9 1408 | Frontier Airlines | 11:07 | 13:15 | 2h 8m | Airbus A320neo | |
| DL 2266 | Delta Air Lines | 14:10 | 16:09 | 1h 59m | Airbus A321 | |
| DL 2334 | Delta Air Lines | 21:57 | 23:59 | 2h 2m | Airbus A321 | |
| DL 1384 | Delta Air Lines | 09:16 | 11:16 | 2h | Airbus A321 | |
| DL 2266 | Delta Air Lines | 14:10 | 16:09 | 1h 59m | Airbus A321 | |
| DL 2334 | Delta Air Lines | 21:57 | 23:59 | 2h 2m | Airbus A321 |
Showing all 29 scheduled ATL to BUF departures across 7 days with service, starting October 23, 2026. Later dates are 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.
Aircraft on the Atlanta to Buffalo nonstop
In the schedule table on this page, Delta Air Lines flies the Airbus A321, and Frontier Airlines flies the Airbus A320neo and the Airbus A321neo family. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.
Confirmed upgrade & award space on ATL to BUF 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 Buffalo 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 Buffalo 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 BUF 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 BUF on the interactive route map, with schedules, connections, and route statistics.
Airlines flying Atlanta to Buffalo nonstop
Carriers operating ATL to BUF nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.
Frequently asked questions about ATL to BUF
How long is the flight from Atlanta (ATL) to Buffalo (BUF)?
Which airlines fly nonstop from ATL to BUF?
How many flights a week are there from ATL to BUF?
What time do flights from ATL to BUF depart?
Which flights operate ATL to BUF nonstop?
How do I check upgrade or award availability on ATL to BUF?
Never miss ATL to BUF 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.
Get started free