Flight OddsAA3366 ORD → MDT
American Airlines · Chicago, IL to Harrisburg, PA · 46 flights observed, 2025-09-03 to 2025-11-01 · 594 mi
AA3366 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
78%
Median delay
-5 min
90th percentile
+56 min
Cancellation rate
0%
How often is AA3366 on time?
Across 46 flights on ORD → MDT from 2025-09-03 to 2025-11-01, AA3366 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +56 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 | 36 | 78% |
| 16-30 min | 1 | 2% |
| 31-60 min | 6 | 13% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 17 | 82% | +2 min |
| 2025-10 | 28 | 75% | +7 min |
| 2025-11 | 1 | 100% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | 8 | 88% |
| Wed | 9 | 89% |
| Thu | 5 | 80% |
| Fri | 8 | 75% |
| Sat | 9 | 78% |
| 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…