Flight OddsUA4601 STL → ORD
United Airlines · St. Louis, MO to Chicago, IL · 73 flights observed, 2026-03-05 to 2026-05-20 · 258 mi
UA4601 covers more than one route in the data window — the stats below are for STL → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
66%
Median delay
+7 min
90th percentile
+120 min
Cancellation rate
3%
How often is UA4601 on time?
Across 73 flights on STL → ORD from 2026-03-05 to 2026-05-20, UA4601 arrived within 15 minutes of schedule 66% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +120 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 | 47 | 66% |
| 16-30 min | 6 | 8% |
| 31-60 min | 5 | 7% |
| 61-120 min | 6 | 8% |
| 2+ hrs | 7 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 26 | 65% | +38 min |
| 2026-04 | 25 | 72% | +20 min |
| 2026-05 | 20 | 60% | +32 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 36% |
| Tue | 11 | 73% |
| Wed | 11 | 73% |
| Thu | 10 | 70% |
| Fri | 11 | 73% |
| Sat | 7 | 71% |
| Sun | 10 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…