Flight OddsAA3855 MDT → ORD
American Airlines · Harrisburg, PA to Chicago, IL · 22 flights observed, 2025-11-02 to 2025-12-02 · 594 mi
AA3855 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
67%
Median delay
+1 min
90th percentile
+61 min
Cancellation rate
18%
How often is AA3855 on time?
Across 22 flights on MDT → ORD from 2025-11-02 to 2025-12-02, AA3855 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +61 min or later. 18% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 12 | 67% |
| 16-30 min | 2 | 11% |
| 31-60 min | 2 | 11% |
| 61-120 min | 1 | 6% |
| 2+ hrs | 1 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 17 | 71% | +8 min |
| 2025-12 | 1 | 0% | +256 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 2 | 50% |
| Wed | 1 | 0% |
| Thu | 3 | 67% |
| Fri | 4 | 75% |
| Sat | 2 | 50% |
| 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…