Flight OddsAA3509 SDF → ORD
American Airlines · Louisville, KY to Chicago, IL · 22 flights observed, 2025-08-06 to 2025-09-01 · 286 mi
AA3509 covers more than one route in the data window — the stats below are for SDF → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
62%
Median delay
+8 min
90th percentile
+51 min
Cancellation rate
5%
How often is AA3509 on time?
Across 22 flights on SDF → ORD from 2025-08-06 to 2025-09-01, AA3509 arrived within 15 minutes of schedule 62% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +51 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 | 13 | 62% |
| 16-30 min | 5 | 24% |
| 31-60 min | 1 | 5% |
| 61-120 min | 1 | 5% |
| 2+ hrs | 1 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 20 | 60% | +35 min |
| 2025-09 | 1 | 100% | +8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | No data | — |
| Wed | 4 | 50% |
| Thu | 4 | 75% |
| Fri | 4 | 50% |
| Sat | 2 | 0% |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…