Flight OddsUA4781 MDT → ORD
United Airlines · Harrisburg, PA to Chicago, IL · 87 flights observed, 2026-01-08 to 2026-05-20 · 594 mi
UA4781 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
72%
Median delay
-4 min
90th percentile
+63 min
Cancellation rate
5%
How often is UA4781 on time?
Across 87 flights on MDT → ORD from 2026-01-08 to 2026-05-20, UA4781 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +63 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 58 | 72% |
| 16-30 min | 6 | 7% |
| 31-60 min | 8 | 10% |
| 61-120 min | 5 | 6% |
| 2+ hrs | 4 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 17 | 59% | +13 min |
| 2026-02 | 24 | 71% | +19 min |
| 2026-03 | 21 | 67% | +20 min |
| 2026-04 | 1 | 100% | -19 min |
| 2026-05 | 18 | 89% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 12 | 75% |
| Tue | 8 | 75% |
| Wed | 8 | 75% |
| Thu | 15 | 93% |
| Fri | 14 | 57% |
| Sat | 11 | 55% |
| Sun | 13 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…