UA4573 MLI → ORD
United Airlines · Moline, IL to Chicago, IL · 123 flights observed, 2025-07-01 to 2026-03-04 · 139 mi
UA4573 covers more than one route in the data window — the stats below are for MLI → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
55%
Median delay
+11 min
90th percentile
+146 min
Cancellation rate
2%
How often is UA4573 on time?
Across 123 flights on MLI → ORD from 2025-07-01 to 2026-03-04, UA4573 arrived within 15 minutes of schedule 55% of the time. The median arrival delay was +11 min, and the worst 10% of flights arrived +146 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 66 | 55% |
| 16-30 min | 17 | 14% |
| 31-60 min | 10 | 8% |
| 61-120 min | 13 | 11% |
| 2+ hrs | 14 | 12% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 55% | +57 min |
| 2025-08 | 27 | 52% | +22 min |
| 2025-09 | 21 | 76% | +5 min |
| 2025-10 | 4 | 50% | +78 min |
| 2025-12 | 23 | 35% | +78 min |
| 2026-01 | 3 | 100% | -3 min |
| 2026-02 | 7 | 57% | +14 min |
| 2026-03 | 4 | 50% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 18 | 61% |
| Tue | 21 | 43% |
| Wed | 19 | 47% |
| Thu | 18 | 67% |
| Fri | 15 | 53% |
| Sat | 11 | 36% |
| Sun | 18 | 72% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…