Flight OddsUA2104 STL → EWR
United Airlines · St. Louis, MO to Newark, NJ · 34 flights observed, 2026-05-22 to 2026-06-24 · 872 mi
UA2104 covers more than one route in the data window — the stats below are for STL → EWR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
91%
Median delay
-11 min
90th percentile
+4 min
Cancellation rate
0%
How often is UA2104 on time?
Across 34 flights on STL → EWR from 2026-05-22 to 2026-06-24, UA2104 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +4 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 | 31 | 91% |
| 16-30 min | 1 | 3% |
| 31-60 min | 1 | 3% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 10 | 90% | -8 min |
| 2026-06 | 24 | 92% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 5 | 100% |
| Wed | 5 | 100% |
| Thu | 4 | 100% |
| Fri | 5 | 100% |
| Sat | 5 | 100% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…