Buffalo Niagara International Airport (BUF) delays & on-time performance
Buffalo, New York · 34 nonstop destinations · 10 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BUF right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
78%
arrived < 15 min late
Cancelled
2.6%
547 flights
Avg arrival delay
19 min
80 min when late
Departed on time
78%
avg taxi-out 16 min
Figures cover 20,726 departures from BUF; on-time is measured at arrival. Arrivals into BUF were on time 73% of the time.
Key facts
- Flights departing Buffalo Niagara International Airport (BUF) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 2.6% were cancelled, and 9% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (83% on time); PSA Airlines was the least (66%).
- Departures scheduled around 5am did best (89% on time); around 5pm did worst (61%).
- The largest source of delay minutes was late-arriving aircraft (43%).
Most delayed routes from BUF
Lowest on-time arrival rates among regularly flown routes.
- DCA · Washington66%1,134 flts
- DFW · Dallas/Fort Worth74%578 flts
- ORD · Chicago75%2,199 flts
- DEN · Denver75%586 flts
- FLL · Fort Lauderdale75%553 flts
- MCO · Orlando76%1,792 flts
- BOS · Boston76%1,295 flts
- MDW · Chicago77%824 flts
- JFK · New York77%1,217 flts
- BNA · Nashville78%370 flts
Most reliable routes from BUF
Highest on-time arrival rates among regularly flown routes.
- EWR · Newark88%482 flts
- BWI · Baltimore87%1,750 flts
- DTW · Detroit81%1,207 flts
- ATL · Atlanta80%1,520 flts
- TPA · Tampa80%732 flts
- CLT · Charlotte79%1,165 flts
- LGA · New York78%1,758 flts
- BNA · Nashville78%370 flts
- JFK · New York77%1,217 flts
- MDW · Chicago77%824 flts
Best airline at BUF
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 83% | 2.1% | 13 min | 4 | 1,786 |
| Republic Airways | 80% | 4.2% | 17 min | 9 | 3,380 |
| Southwest Airlines | 80% | 1.1% | 12 min | 18 | 5,489 |
| United Airlines | 79% | 0.9% | 19 min | 5 | 981 |
| American Airlines | 79% | 2.2% | 20 min | 7 | 2,238 |
| JetBlue | 76% | 3.8% | 20 min | 7 | 3,439 |
| SkyWest Airlines | 73% | 3.1% | 32 min | 3 | 1,136 |
| Frontier Airlines | 69% | 2.1% | 27 min | 6 | 827 |
| Envoy Air | 68% | 4.4% | 23 min | 3 | 636 |
| PSA Airlines | 66% | 5.2% | 45 min | 3 | 814 |
Best time to fly out of BUF
On-time arrival rate by scheduled departure hour (local time).
- 5am89%958 flts
- 6am87%3,529 flts
- 7am87%1,761 flts
- 8am84%1,142 flts
- 9am85%767 flts
- 10am85%1,185 flts
- 11am82%1,237 flts
- 12pm76%1,780 flts
- 1pm75%936 flts
- 2pm71%703 flts
- 3pm71%742 flts
- 4pm67%1,164 flts
- 5pm61%1,863 flts
- 6pm67%1,070 flts
- 7pm70%1,338 flts
- 8pm62%413 flts
Monthly trend
Why departures were late
- Late-arriving aircraft43%
- Airline (crew, maintenance, cleaning, fueling)31%
- Air traffic control & airport congestion22%
- Extreme weather4%
- Security0%
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.