Flight OddsUA1821 RDU → EWR
United Airlines · Raleigh/Durham, NC to Newark, NJ · 49 flights observed, 2025-10-26 to 2026-01-05 · 416 mi
UA1821 covers more than one route in the data window — the stats below are for RDU → EWR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
52%
Median delay
+10 min
90th percentile
+131 min
Cancellation rate
6%
How often is UA1821 on time?
Across 49 flights on RDU → EWR from 2025-10-26 to 2026-01-05, UA1821 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +10 min, and the worst 10% of flights arrived +131 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 24 | 52% |
| 16-30 min | 3 | 7% |
| 31-60 min | 5 | 11% |
| 61-120 min | 8 | 17% |
| 2+ hrs | 6 | 13% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 0% | +94 min |
| 2025-11 | 21 | 48% | +36 min |
| 2025-12 | 14 | 71% | +15 min |
| 2026-01 | 5 | 80% | -4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 78% |
| Tue | 7 | 57% |
| Wed | 7 | 57% |
| Thu | 7 | 29% |
| Fri | 6 | 33% |
| Sat | 3 | 67% |
| Sun | 7 | 43% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…