Route
PHL → BUF
Philadelphia International Airport Buffalo Niagara International Airport
279 miles
Return route BUF → PHL →
How punctual is this route?
- On-time arrivals
- 72.0%
- Less than 15 minutes late
- Cancelled
- 5.2%
- Of scheduled flights
- Average delay when late
- 94 min
- Flights arriving 15+ minutes late
- Flights tracked
- 252
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 71%
- Airline (crew, maintenance, cleaning) 13%
- Air traffic control & airport 12%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Jun 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 66.7% | 15 |
| October 2025 | 75.4% | 62 |
| November 2025 | 60.7% | 30 |
| December 2025 | 52.9% | 21 |
| February 2026 | 60.0% | 17 |
| March 2026 | 72.4% | 31 |
| April 2026 | 82.8% | 30 |
| May 2026 | 71.4% | 29 |
| June 2026 | 94.1% | 17 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Republic Airways | 133 | 77.2% | 4.5% | 102 min |
| OH | 107 | 68.3% | 5.6% | 97 min |
| American Airlines | 12 | 45.5% | 8.3% | 42 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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