Flight OddsUA3538 EWR → STL
United Airlines · Newark, NJ to St. Louis, MO · 37 flights observed, 2025-08-19 to 2025-09-24 · 872 mi
UA3538 covers more than one route in the data window — the stats below are for EWR → STL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-23 min
90th percentile
+35 min
Cancellation rate
5%
How often is UA3538 on time?
Across 37 flights on EWR → STL from 2025-08-19 to 2025-09-24, UA3538 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -23 min, and the worst 10% of flights arrived +35 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 29 | 83% |
| 16-30 min | 2 | 6% |
| 31-60 min | 2 | 6% |
| 61-120 min | 2 | 6% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 85% | -15 min |
| 2025-09 | 22 | 82% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 6 | 100% |
| Wed | 6 | 50% |
| Thu | 4 | 75% |
| Fri | 5 | 80% |
| Sat | 4 | 100% |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…