Flight OddsUA5581 ORD → MDT
United Airlines · Chicago, IL to Harrisburg, PA · 87 flights observed, 2026-01-08 to 2026-05-20 · 594 mi
UA5581 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
77%
Median delay
-5 min
90th percentile
+41 min
Cancellation rate
3%
How often is UA5581 on time?
Across 87 flights on ORD → MDT from 2026-01-08 to 2026-05-20, UA5581 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +41 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 65 | 77% |
| 16-30 min | 5 | 6% |
| 31-60 min | 9 | 11% |
| 61-120 min | 3 | 4% |
| 2+ hrs | 2 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 17 | 82% | -9 min |
| 2026-02 | 24 | 58% | +14 min |
| 2026-03 | 23 | 78% | +20 min |
| 2026-04 | 1 | 100% | +5 min |
| 2026-05 | 19 | 95% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 71% |
| Tue | 8 | 75% |
| Wed | 8 | 88% |
| Thu | 15 | 80% |
| Fri | 15 | 67% |
| Sat | 11 | 73% |
| Sun | 13 | 92% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…