Flight OddsAA4521 BNA → ORD
American Airlines · Nashville, TN to Chicago, IL · 13 flights observed, 2025-11-27 to 2026-01-05 · 409 mi
AA4521 covers more than one route in the data window — the stats below are for BNA → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
54%
Median delay
+13 min
90th percentile
+78 min
Cancellation rate
0%
How often is AA4521 on time?
Across 13 flights on BNA → ORD from 2025-11-27 to 2026-01-05, AA4521 arrived within 15 minutes of schedule 54% of the time. The median arrival delay was +13 min, and the worst 10% of flights arrived +78 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 7 | 54% |
| 16-30 min | 2 | 15% |
| 31-60 min | 0 | 0% |
| 61-120 min | 3 | 23% |
| 2+ hrs | 1 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 1 | 100% | -24 min |
| 2025-12 | 7 | 71% | +25 min |
| 2026-01 | 5 | 20% | +42 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 50% |
| Tue | 1 | 100% |
| Wed | 1 | 100% |
| Thu | 3 | 67% |
| Fri | 2 | 50% |
| Sat | 2 | 0% |
| Sun | 2 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…