Flight OddsAA4584 ORD → MDT
American Airlines · Chicago, IL to Harrisburg, PA · 10 flights observed, 2025-12-26 to 2026-01-04 · 594 mi
AA4584 covers more than one route in the data window — the stats below are for ORD → MDT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
44%
Median delay
+18 min
90th percentile
+119 min
Cancellation rate
10%
How often is AA4584 on time?
Across 10 flights on ORD → MDT from 2025-12-26 to 2026-01-04, AA4584 arrived within 15 minutes of schedule 44% of the time. The median arrival delay was +18 min, and the worst 10% of flights arrived +119 min or later. 10% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 4 | 44% |
| 16-30 min | 2 | 22% |
| 31-60 min | 0 | 0% |
| 61-120 min | 2 | 22% |
| 2+ hrs | 1 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 5 | 20% | +66 min |
| 2026-01 | 4 | 75% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 1 | 0% |
| Tue | 1 | 0% |
| Wed | 1 | 0% |
| Thu | 1 | 100% |
| Fri | 1 | 100% |
| Sat | 2 | 100% |
| Sun | 2 | 0% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…