American Airlines · Buffalo, NY to Philadelphia, PA · 147 flights observed, 2025-11-02 to 2026-04-06 · 279 mi
AA5866 covers more than one route in the data window — the stats below are for BUF → PHL, the one it has flown most recently. The others are linked under “Other routes”.
How often is AA5866 on time?
Across 147 flights on BUF → PHL from 2025-11-02 to 2026-04-06, AA5866 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +70 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 100 | 72% |
| 16-30 min | 12 | 9% |
| 31-60 min | 9 | 6% |
| 61-120 min | 11 | 8% |
| 2+ hrs | 7 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 26 | 73% | +6 min |
| 2025-12 | 26 | 62% | +27 min |
| 2026-01 | 26 | 62% | +11 min |
| 2026-02 | 25 | 84% | -2 min |
| 2026-03 | 30 | 73% | +10 min |
| 2026-04 | 6 | 100% | -15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 20 | 80% |
| Tue | 22 | 64% |
| Wed | 21 | 81% |
| Thu | 20 | 75% |
| Fri | 21 | 62% |
| Sat | 16 | 88% |
| Sun | 19 | 58% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…