Airlines at Buffalo Niagara International Airport (BUF)
Buffalo, New York KBUF #63 US airport by passengers
Airlines operating at BUF, ranked by number of departures.
On-time performance at BUF
Based on 5,752 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.
23.8%Departures late
27.4%Arrivals late
3.10%Cancelled
19.0 minAverage departure delay
| Airline | Departures | Late |
|---|---|---|
| Southwest Airlines | 1,303 | 30.6% |
| Republic Airways | 1,062 | 13.6% |
| JetBlue Airways | 1,016 | 21.9% |
| American Airlines | 655 | 21.8% |
| Delta Air Lines | 498 | 28.7% |
| SkyWest Airlines | 435 | 24.1% |
| United Airlines | 300 | 16.3% |
| PSA Airlines | 220 | 36.4% |
| Frontier Airlines | 207 | 36.7% |
Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.
Airline presence
Seven airlines serve Buffalo Niagara, including Delta, American, United and Southwest. Delta, American and United operate premium cabins and priority programs, but they do not have a separate security lane at BUF.