Flight OddsUA4557 ORD → MSN
United Airlines · Chicago, IL to Madison, WI · 55 flights observed, 2025-08-19 to 2026-01-05 · 108 mi
UA4557 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
78%
Median delay
-12 min
90th percentile
+78 min
Cancellation rate
0%
How often is UA4557 on time?
Across 55 flights on ORD → MSN from 2025-08-19 to 2026-01-05, UA4557 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +78 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 | 43 | 78% |
| 16-30 min | 2 | 4% |
| 31-60 min | 3 | 5% |
| 61-120 min | 6 | 11% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 12 | 83% | +2 min |
| 2025-09 | 24 | 79% | +1 min |
| 2025-12 | 14 | 64% | +14 min |
| 2026-01 | 5 | 100% | -15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 88% |
| Tue | 8 | 88% |
| Wed | 8 | 75% |
| Thu | 7 | 86% |
| Fri | 8 | 63% |
| Sat | 8 | 63% |
| Sun | 8 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…