American Airlines · Philadelphia, PA to Buffalo, NY · 154 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 PHL → BUF, the one it has flown most recently. The others are linked under “Other routes”.
How often is AA5866 on time?
Across 154 flights on PHL → BUF from 2025-11-02 to 2026-04-06, AA5866 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +44 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 | 117 | 81% |
| 16-30 min | 9 | 6% |
| 31-60 min | 7 | 5% |
| 61-120 min | 6 | 4% |
| 2+ hrs | 6 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 26 | 81% | +1 min |
| 2025-12 | 27 | 70% | +17 min |
| 2026-01 | 30 | 80% | +4 min |
| 2026-02 | 26 | 81% | +2 min |
| 2026-03 | 30 | 87% | +2 min |
| 2026-04 | 6 | 100% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 19 | 89% |
| Tue | 22 | 77% |
| Wed | 22 | 91% |
| Thu | 21 | 86% |
| Fri | 21 | 71% |
| Sat | 21 | 76% |
| Sun | 19 | 74% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…