UA1233 DEN → EWR
United Airlines · Denver, CO to Newark, NJ · 365 flights observed, 2025-07-01 to 2026-06-30 · 1,605 mi
UA1233 covers more than one route in the data window — the stats below are for DEN → EWR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
-6 min
90th percentile
+38 min
Cancellation rate
2%
How often is UA1233 on time?
Across 365 flights on DEN → EWR from 2025-07-01 to 2026-06-30, UA1233 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +38 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 273 | 76% |
| 16-30 min | 38 | 11% |
| 31-60 min | 25 | 7% |
| 61-120 min | 13 | 4% |
| 2+ hrs | 8 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 66% | +45 min |
| 2025-08 | 30 | 57% | +12 min |
| 2025-09 | 30 | 70% | +14 min |
| 2025-10 | 30 | 67% | +9 min |
| 2025-11 | 30 | 87% | +10 min |
| 2025-12 | 31 | 81% | +6 min |
| 2026-01 | 29 | 79% | -4 min |
| 2026-02 | 27 | 89% | -8 min |
| 2026-03 | 30 | 73% | +8 min |
| 2026-04 | 30 | 93% | -15 min |
| 2026-05 | 31 | 90% | -10 min |
| 2026-06 | 30 | 67% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 49 | 78% |
| Tue | 52 | 88% |
| Wed | 51 | 82% |
| Thu | 51 | 71% |
| Fri | 51 | 76% |
| Sat | 52 | 75% |
| Sun | 51 | 65% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…