UA4494 STL → ORD
United Airlines · St. Louis, MO to Chicago, IL · 58 flights observed, 2026-01-06 to 2026-05-20 · 258 mi
UA4494 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
61%
Median delay
+9 min
90th percentile
+90 min
Cancellation rate
7%
How often is UA4494 on time?
Across 58 flights on STL → ORD from 2026-01-06 to 2026-05-20, UA4494 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +9 min, and the worst 10% of flights arrived +90 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 33 | 61% |
| 16-30 min | 6 | 11% |
| 31-60 min | 5 | 9% |
| 61-120 min | 6 | 11% |
| 2+ hrs | 4 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 23 | 48% | +42 min |
| 2026-02 | 11 | 64% | +14 min |
| 2026-04 | 1 | 0% | +33 min |
| 2026-05 | 19 | 79% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 71% |
| Tue | 9 | 67% |
| Wed | 8 | 75% |
| Thu | 8 | 38% |
| Fri | 7 | 57% |
| Sat | 7 | 57% |
| Sun | 8 | 63% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…