Flight OddsAA4603 ORD → SDF
American Airlines · Chicago, IL to Louisville, KY · 258 flights observed, 2025-07-01 to 2026-06-30 · 286 mi
AA4603 covers more than one route in the data window — the stats below are for ORD → SDF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
-9 min
90th percentile
+79 min
Cancellation rate
5%
How often is AA4603 on time?
Across 258 flights on ORD → SDF from 2025-07-01 to 2026-06-30, AA4603 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +79 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 | 175 | 72% |
| 16-30 min | 12 | 5% |
| 31-60 min | 22 | 9% |
| 61-120 min | 23 | 9% |
| 2+ hrs | 12 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 52% | +27 min |
| 2025-08 | 29 | 69% | +2 min |
| 2025-09 | 30 | 83% | -2 min |
| 2025-10 | 31 | 81% | +3 min |
| 2025-11 | 26 | 77% | +17 min |
| 2025-12 | 27 | 63% | +28 min |
| 2026-01 | 26 | 65% | +18 min |
| 2026-02 | 10 | 80% | -1 min |
| 2026-05 | 11 | 91% | -22 min |
| 2026-06 | 27 | 70% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 34 | 68% |
| Tue | 38 | 79% |
| Wed | 35 | 63% |
| Thu | 34 | 74% |
| Fri | 35 | 83% |
| Sat | 31 | 74% |
| Sun | 37 | 62% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…