Flight OddsAA4521 LGA → BUF
American Airlines · New York, NY to Buffalo, NY · 89 flights observed, 2025-07-01 to 2026-06-30 · 292 mi
AA4521 covers more than one route in the data window — the stats below are for LGA → BUF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
78%
Median delay
-13 min
90th percentile
+61 min
Cancellation rate
15%
How often is AA4521 on time?
Across 89 flights on LGA → BUF from 2025-07-01 to 2026-06-30, AA4521 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +61 min or later. 15% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 59 | 78% |
| 16-30 min | 3 | 4% |
| 31-60 min | 6 | 8% |
| 61-120 min | 5 | 7% |
| 2+ hrs | 3 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 15 | 80% | -5 min |
| 2025-08 | 26 | 85% | -5 min |
| 2025-09 | 2 | 100% | -19 min |
| 2026-05 | 9 | 78% | +12 min |
| 2026-06 | 24 | 67% | +20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 13 | 77% |
| Tue | 14 | 86% |
| Wed | 11 | 73% |
| Thu | 13 | 85% |
| Fri | 12 | 83% |
| Sat | No data | — |
| Sun | 13 | 62% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…