Flight OddsAmerican Airlines · Bloomington/Normal, IL to Chicago, IL · 77 flights observed, 2025-07-01 to 2026-06-30 · 116 mi
AA3509 covers more than one route in the data window — the stats below are for BMI → ORD, the one it has flown most recently. The others are linked under “Other routes”.
How often is AA3509 on time?
Across 77 flights on BMI → ORD from 2025-07-01 to 2026-06-30, AA3509 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +9 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 69 | 91% |
| 16-30 min | 1 | 1% |
| 31-60 min | 3 | 4% |
| 61-120 min | 3 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 90% | -9 min |
| 2025-08 | 5 | 100% | -22 min |
| 2026-05 | 11 | 100% | -11 min |
| 2026-06 | 30 | 87% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 82% |
| Tue | 12 | 100% |
| Wed | 10 | 90% |
| Thu | 11 | 91% |
| Fri | 10 | 100% |
| Sat | 11 | 82% |
| Sun | 11 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…