Flight OddsUA4558 ORD → MSN
United Airlines · Chicago, IL to Madison, WI · 24 flights observed, 2025-09-26 to 2025-10-24 · 108 mi
UA4558 covers more than one route in the data window — the stats below are for ORD → MSN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-1 min
90th percentile
+33 min
Cancellation rate
0%
How often is UA4558 on time?
Across 24 flights on ORD → MSN from 2025-09-26 to 2025-10-24, UA4558 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +33 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 | 19 | 79% |
| 16-30 min | 2 | 8% |
| 31-60 min | 2 | 8% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 4 | 100% | -9 min |
| 2025-10 | 20 | 75% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 4 | 75% |
| Wed | 4 | 50% |
| Thu | 4 | 100% |
| Fri | 5 | 100% |
| Sat | No data | — |
| 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…