Flight OddsAA4511 ORD → CHA
American Airlines · Chicago, IL to Chattanooga, TN · 76 flights observed, 2025-10-06 to 2026-01-03 · 501 mi
AA4511 covers more than one route in the data window — the stats below are for ORD → CHA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
64%
Median delay
-6 min
90th percentile
+92 min
Cancellation rate
8%
How often is AA4511 on time?
Across 76 flights on ORD → CHA from 2025-10-06 to 2026-01-03, AA4511 arrived within 15 minutes of schedule 64% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +92 min or later. 8% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 45 | 64% |
| 16-30 min | 9 | 13% |
| 31-60 min | 5 | 7% |
| 61-120 min | 6 | 9% |
| 2+ hrs | 5 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 24 | 50% | +19 min |
| 2025-11 | 26 | 69% | +8 min |
| 2025-12 | 18 | 78% | +60 min |
| 2026-01 | 2 | 50% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 56% |
| Tue | 10 | 70% |
| Wed | 11 | 64% |
| Thu | 8 | 75% |
| Fri | 12 | 83% |
| Sat | 12 | 58% |
| Sun | 8 | 38% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…