Airports › Buffalo (BUF) › April 2026
Airport month · April 2026
Buffalo Niagara International in April 2026
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 April 2026, reporting carriers scheduled 1,699 domestic departures from Buffalo Niagara International (BUF). 80.8% left less than 15 minutes late and 81.8% reached their destination on time; 0.9% were cancelled.
Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so BUF departures were 1.7 points above the national departure figure.
A year earlier, in April 2025, the airport had 1,722 departures with 85.5% leaving on time: a change of −4.7 points, with flights down 1%.
Flights arriving at BUF that month were on time 76.4% of the time (1,699 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 29% and national aviation system 24%.
- On time 81.8%
- Arrived 15+ minutes late 17.2%
- Cancelled 0.9%
- Diverted 0.1%
April 2026 against a year earlier, the airport's year and the nation
| Measure | Apr 2026 | Apr 2025 | BUF, 12 months to Jul 2026 | All reported flights, Apr 2026 |
|---|---|---|---|---|
| Departed on time | 80.8% | 85.5% | 75.6% | 79.1% |
| Arrived on time | 81.8% | 86.2% | 75.5% | 78.9% |
| Cancelled | 0.9% | 0.8% | 2.6% | 0.9% |
| Average departure delay (late minutes only) | 12.4 min | 10.5 min | 18.8 min | 14.5 min |
| Scheduled departures a day | 57 | 57 | 57 | 19,931 |
| Scheduled departures | 1,699 | 1,722 | 20,726 | 597,919 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 475 | 28% | 84.2% | 0.9 min | 0.0% |
| YX Republic Airline | 303 | 18% | 76.9% | 5.8 min | 2.0% |
| B6 JetBlue Airways | 210 | 12% | 83.8% | -0.4 min | 0.0% |
| AA American Airlines | 196 | 12% | 84.7% | -2.3 min | 1.5% |
| DL Delta Air Lines | 160 | 9% | 89.4% | -5.1 min | 0.6% |
| OO SkyWest Airlines | 108 | 6% | 80.6% | 3.9 min | 1.9% |
| F9 Frontier Airlines | 82 | 5% | 78.0% | 3.5 min | 1.2% |
| UA United Airlines | 63 | 4% | 82.5% | 8.0 min | 1.6% |
| OH PSA Airlines | 60 | 4% | 73.3% | 16.6 min | 1.7% |
| MQ Envoy Air | 42 | 2% | 59.5% | 20.5 min | 2.4% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| BUF–ORD | Buffalo to Chicago | 185 | 74.1% | 6.4 min | 4.9% |
| BUF–MCO | Buffalo to Orlando | 169 | 76.3% | 4.5 min | 0.0% |
| BUF–BWI | Buffalo to Baltimore | 148 | 90.5% | -4.4 min | 0.0% |
| BUF–ATL | Buffalo to Atlanta | 144 | 85.4% | -0.9 min | 0.7% |
| BUF–DTW | Buffalo to Detroit | 129 | 84.5% | -0.8 min | 0.0% |
| BUF–LGA | Buffalo to New York | 127 | 77.2% | 6.6 min | 0.8% |
| BUF–BOS | Buffalo to Boston | 104 | 76.0% | 3.8 min | 0.0% |
| BUF–CLT | Buffalo to Charlotte | 91 | 89.0% | -1.4 min | 0.0% |
| BUF–DCA | Buffalo to Washington | 89 | 70.8% | 17.0 min | 2.2% |
| BUF–MDW | Buffalo to Chicago | 82 | 79.3% | 5.3 min | 0.0% |
| BUF–TPA | Buffalo to Tampa | 73 | 87.7% | -1.6 min | 1.4% |
| BUF–JFK | Buffalo to New York | 62 | 88.7% | -6.8 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left BUF on time in April 2026?
80.8% of 1,699 scheduled domestic departures left less than 15 minutes late, and 81.8% reached their destination on time. The national figures that month were 79.1% and 78.9%.
How does that compare with a year earlier?
In April 2025, 85.5% of 1,722 departures left on time and 0.8% were cancelled, against 80.8% and 0.9% in April 2026.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.