Flight OddsUA4589 ORD → MDT
United Airlines · Chicago, IL to Harrisburg, PA · 51 flights observed, 2025-10-26 to 2025-12-17 · 594 mi
UA4589 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
73%
Median delay
-7 min
90th percentile
+107 min
Cancellation rate
4%
How often is UA4589 on time?
Across 51 flights on ORD → MDT from 2025-10-26 to 2025-12-17, UA4589 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +107 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 36 | 73% |
| 16-30 min | 2 | 4% |
| 31-60 min | 4 | 8% |
| 61-120 min | 3 | 6% |
| 2+ hrs | 4 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 83% | +2 min |
| 2025-11 | 26 | 81% | +18 min |
| 2025-12 | 17 | 59% | +36 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 57% |
| Tue | 8 | 63% |
| Wed | 8 | 88% |
| Thu | 5 | 100% |
| Fri | 6 | 83% |
| Sat | 7 | 57% |
| Sun | 8 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…