Flight OddsAA4004 MDT → ORD
American Airlines · Harrisburg, PA to Chicago, IL · 26 flights observed, 2025-10-06 to 2025-11-01 · 594 mi
AA4004 covers more than one route in the data window — the stats below are for MDT → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
58%
Median delay
+11 min
90th percentile
+63 min
Cancellation rate
0%
How often is AA4004 on time?
Across 26 flights on MDT → ORD from 2025-10-06 to 2025-11-01, AA4004 arrived within 15 minutes of schedule 58% of the time. The median arrival delay was +11 min, and the worst 10% of flights arrived +63 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 15 | 58% |
| 16-30 min | 4 | 15% |
| 31-60 min | 3 | 12% |
| 61-120 min | 4 | 15% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 25 | 60% | +18 min |
| 2025-11 | 1 | 0% | +25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 4 | 50% |
| Wed | 4 | 50% |
| Thu | 4 | 75% |
| Fri | 3 | 67% |
| Sat | 4 | 25% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…