Airports › Buffalo (BUF) › August 2025
Airport month · August 2025
Buffalo Niagara International in August 2025
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In August 2025, reporting carriers scheduled 1,886 domestic departures from Buffalo Niagara International (BUF). 77.0% left less than 15 minutes late and 77.7% reached their destination on time; 1.0% were cancelled.
Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so BUF departures were level with the national departure figure.
A year earlier, in August 2024, the airport had 2,067 departures with 72.9% leaving on time: a change of +4.1 points, with flights down 9%.
Flights arriving at BUF that month were on time 73.7% of the time (1,882 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 47%, air carrier 33% and national aviation system 18%.
- On time 77.7%
- Arrived 15+ minutes late 20.8%
- Cancelled 1.0%
- Diverted 0.5%
August 2025 against a year earlier, the airport's year and the nation
| Measure | Aug 2025 | Aug 2024 | BUF, 12 months to Jul 2026 | All reported flights, Aug 2025 |
|---|---|---|---|---|
| Departed on time | 77.0% | 72.9% | 75.6% | 76.8% |
| Arrived on time | 77.7% | 72.9% | 75.5% | 76.3% |
| Cancelled | 1.0% | 3.8% | 2.6% | 1.1% |
| Average departure delay (late minutes only) | 20.0 min | 18.6 min | 18.8 min | 17.6 min |
| Scheduled departures a day | 63 | 69 | 57 | 20,079 |
| Scheduled departures | 1,886 | 2,067 | 20,726 | 602,378 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 476 | 25% | 80.7% | 6.5 min | 0.2% |
| B6 JetBlue Airways | 379 | 20% | 78.4% | 11.2 min | 0.5% |
| YX Republic Airline | 233 | 12% | 86.3% | 1.1 min | 1.3% |
| AA American Airlines | 221 | 12% | 68.3% | 24.1 min | 0.9% |
| DL Delta Air Lines | 175 | 9% | 78.9% | 6.5 min | 1.7% |
| UA United Airlines | 138 | 7% | 77.5% | 19.9 min | 0.7% |
| OH PSA Airlines | 102 | 5% | 67.6% | 42.1 min | 2.9% |
| F9 Frontier Airlines | 98 | 5% | 76.5% | 8.0 min | 1.0% |
| MQ Envoy Air | 54 | 3% | 64.8% | 15.5 min | 5.6% |
| OO SkyWest Airlines | 10 | 1% | 80.0% | 3.7 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BUF–ORD | Buffalo to Chicago | 184 | 72.3% | 21.7 min | 2.2% |
| BUF–LGA | Buffalo to New York | 183 | 84.7% | 2.8 min | 1.1% |
| BUF–MCO | Buffalo to Orlando | 151 | 73.5% | 9.9 min | 0.0% |
| BUF–BWI | Buffalo to Baltimore | 148 | 86.5% | 1.0 min | 0.7% |
| BUF–ATL | Buffalo to Atlanta | 136 | 73.5% | 12.2 min | 2.9% |
| BUF–BOS | Buffalo to Boston | 124 | 83.1% | 0.9 min | 0.8% |
| BUF–CLT | Buffalo to Charlotte | 122 | 71.3% | 23.6 min | 0.8% |
| BUF–DCA | Buffalo to Washington | 119 | 70.6% | 35.2 min | 3.4% |
| BUF–JFK | Buffalo to New York | 116 | 81.9% | 11.7 min | 0.9% |
| BUF–MDW | Buffalo to Chicago | 84 | 78.6% | 14.3 min | 0.0% |
| BUF–DEN | Buffalo to Denver | 81 | 81.5% | 5.3 min | 0.0% |
| BUF–TPA | Buffalo to Tampa | 75 | 76.0% | 12.6 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BUF on time in August 2025?
77.0% of 1,886 scheduled domestic departures left less than 15 minutes late, and 77.7% reached their destination on time. The national figures that month were 76.8% and 76.3%.
How does that compare with a year earlier?
In August 2024, 72.9% of 2,067 departures left on time and 3.8% were cancelled, against 77.0% and 1.0% in August 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for BUF · methodology · corrections.