Airports › Buffalo (BUF) › June 2025
Airport month · June 2025
Buffalo Niagara International in June 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 June 2025, reporting carriers scheduled 1,771 domestic departures from Buffalo Niagara International (BUF). 73.0% left less than 15 minutes late and 73.9% reached their destination on time; 3.0% were cancelled.
Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so BUF departures were 1.6 points above the national departure figure.
A year earlier, in June 2024, the airport had 1,916 departures with 76.7% leaving on time: a change of −3.7 points, with flights down 8%.
Flights arriving at BUF that month were on time 64.1% of the time (1,773 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 31% and national aviation system 23%.
- On time 73.9%
- Arrived 15+ minutes late 22.9%
- Cancelled 3.0%
- Diverted 0.2%
June 2025 against a year earlier, the airport's year and the nation
| Measure | Jun 2025 | Jun 2024 | BUF, 12 months to Jul 2026 | All reported flights, Jun 2025 |
|---|---|---|---|---|
| Departed on time | 73.0% | 76.7% | 75.6% | 71.4% |
| Arrived on time | 73.9% | 76.0% | 75.5% | 70.3% |
| Cancelled | 3.0% | 1.8% | 2.6% | 1.6% |
| Average departure delay (late minutes only) | 22.0 min | 19.8 min | 18.8 min | 22.1 min |
| Scheduled departures a day | 59 | 64 | 57 | 20,386 |
| Scheduled departures | 1,771 | 1,916 | 20,726 | 611,575 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 465 | 26% | 81.1% | 4.2 min | 0.4% |
| B6 JetBlue Airways | 319 | 18% | 76.5% | 16.5 min | 0.9% |
| AA American Airlines | 219 | 12% | 75.8% | 12.3 min | 4.6% |
| YX Republic Airline | 214 | 12% | 66.4% | 15.8 min | 7.0% |
| DL Delta Air Lines | 171 | 10% | 73.7% | 2.0 min | 3.5% |
| OH PSA Airlines | 119 | 7% | 54.6% | 67.5 min | 9.2% |
| UA United Airlines | 97 | 5% | 80.4% | 6.9 min | 2.1% |
| F9 Frontier Airlines | 83 | 5% | 61.4% | 20.3 min | 3.6% |
| MQ Envoy Air | 63 | 4% | 79.4% | 3.2 min | 0.0% |
| OO SkyWest Airlines | 21 | 1% | 47.6% | 23.7 min | 4.8% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BUF–ORD | Buffalo to Chicago | 189 | 73.5% | 6.4 min | 4.2% |
| BUF–LGA | Buffalo to New York | 181 | 65.7% | 15.3 min | 7.7% |
| BUF–BWI | Buffalo to Baltimore | 141 | 78.7% | 7.4 min | 0.0% |
| BUF–ATL | Buffalo to Atlanta | 125 | 65.6% | 8.6 min | 5.6% |
| BUF–CLT | Buffalo to Charlotte | 116 | 75.0% | 22.9 min | 2.6% |
| BUF–DCA | Buffalo to Washington | 116 | 57.8% | 66.3 min | 10.3% |
| BUF–JFK | Buffalo to New York | 114 | 72.8% | 27.5 min | 2.6% |
| BUF–MCO | Buffalo to Orlando | 113 | 81.4% | 9.6 min | 0.9% |
| BUF–BOS | Buffalo to Boston | 101 | 76.2% | 12.5 min | 0.0% |
| BUF–MDW | Buffalo to Chicago | 90 | 76.7% | 7.5 min | 2.2% |
| BUF–DEN | Buffalo to Denver | 79 | 88.6% | -3.7 min | 1.3% |
| BUF–TPA | Buffalo to Tampa | 59 | 55.9% | 30.1 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BUF on time in June 2025?
73.0% of 1,771 scheduled domestic departures left less than 15 minutes late, and 73.9% reached their destination on time. The national figures that month were 71.4% and 70.3%.
How does that compare with a year earlier?
In June 2024, 76.7% of 1,916 departures left on time and 1.8% were cancelled, against 73.0% and 3.0% in June 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 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.