Flight OddsUA4509 MLI → ORD
United Airlines · Moline, IL to Chicago, IL · 9 flights observed, 2026-05-22 to 2026-05-31 · 139 mi
UA4509 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
78%
Median delay
+1 min
90th percentile
+180 min
Cancellation rate
0%
How often is UA4509 on time?
Across 9 flights on MLI → ORD from 2026-05-22 to 2026-05-31, UA4509 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +180 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 | 7 | 78% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 11% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 9 | 78% | +79 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 1 | 100% |
| Tue | 1 | 0% |
| Wed | 1 | 100% |
| Thu | 1 | 100% |
| Fri | 2 | 100% |
| Sat | 2 | 50% |
| Sun | 1 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…