Flight OddsAA3740 MDT → ORD
American Airlines · Harrisburg, PA to Chicago, IL · 39 flights observed, 2026-04-08 to 2026-05-20 · 594 mi
AA3740 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
79%
Median delay
-7 min
90th percentile
+57 min
Cancellation rate
0%
How often is AA3740 on time?
Across 39 flights on MDT → ORD from 2026-04-08 to 2026-05-20, AA3740 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +57 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 | 31 | 79% |
| 16-30 min | 3 | 8% |
| 31-60 min | 1 | 3% |
| 61-120 min | 2 | 5% |
| 2+ hrs | 2 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 20 | 70% | +13 min |
| 2026-05 | 19 | 89% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 33% |
| Tue | 2 | 100% |
| Wed | 7 | 86% |
| Thu | 6 | 50% |
| Fri | 6 | 100% |
| Sat | 6 | 100% |
| Sun | 6 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…