Atlanta (ATL) to Buffalo (BUF) flights
Delta Air Lines, Frontier Airlines fly nonstop from Hartsfield Jackson Atlanta International Airport to Buffalo Niagara International Airport, with about 32 flights a week in July 2026. The 712-mile flight takes about 2h 0m gate to gate.
- Distance
- 712 mi · 1,146 km
- Flight time
- 2h 0m
- Airlines
- 2
- Seats filled
- 83%
Airlines flying ATL to BUF
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Delta Air Lines | 26 | Airbus A321, Boeing 737-900ER, Airbus A320-100/200 | 189,239 | 1h 59m |
| Frontier Airlines | 6 | Airbus A321, Airbus A320neo, Airbus A320-100/200 | 40,781 | 2h 5m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
ATL to BUF flight schedule
5 flight numbers flew this route in August 2026, 5 of them almost daily. The first usually leaves at 8:20am and the last at 9:52pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| F9 1408Frontier Airlines | 8:20am | 10:29am | 31 | 68% |
| DL 1384Delta Air Lines | 9:07am | 11:08am | 31 | 87% |
| DL 2266Delta Air Lines | 1:04pm | 3:06pm | 31 | 81% |
| DL 2050Delta Air Lines | 4:47pm | 6:55pm | 25 | 74% |
| DL 2334Delta Air Lines | 9:52pm | 11:59pm | 31 | 74% |
Is ATL to BUF on time?
From September 2025 to August 2026, 77% of 1,534 flights arrived within 15 minutes of schedule and 1.9% were cancelled. Flights leaving around 9am were the most punctual (85%), those around 11am the least (62%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (39%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,255 | 79% | 13 min | 1.8% |
| Frontier Airlines | 278 | 67% | 29 min | 2.5% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 8am to 9am | 85 | 80% | |
| 9am to 10am | 402 | 85% | |
| 10am to 11am | 54 | 59% | |
| 11am to 12pm | 81 | 62% | |
| 1pm to 2pm | 141 | 81% | |
| 2pm to 3pm | 107 | 77% | |
| 3pm to 4pm | 103 | 78% | |
| 4pm to 5pm | 185 | 71% | |
| 9pm to 10pm | 363 | 74% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 133 | 21,512 | |
| September 2025 | 124 | 18,512 | |
| October 2025 | 143 | 21,877 | |
| November 2025 | 105 | 15,048 | |
| December 2025 | 100 | 14,935 | |
| January 2026 | 91 | 11,408 | |
| February 2026 | 96 | 13,487 | |
| March 2026 | 126 | 17,407 | |
| April 2026 | 144 | 21,717 | |
| May 2026 | 147 | 24,858 | |
| June 2026 | 138 | 23,903 | |
| July 2026 | 143 | 25,510 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.