Flight OddsUA4521 EWR → ORF
United Airlines · Newark, NJ to Norfolk, VA · 103 flights observed, 2025-07-01 to 2025-10-24 · 284 mi
UA4521 covers more than one route in the data window — the stats below are for EWR → ORF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
+3 min
90th percentile
+128 min
Cancellation rate
6%
How often is UA4521 on time?
Across 103 flights on EWR → ORF from 2025-07-01 to 2025-10-24, UA4521 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +128 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 | 58 | 60% |
| 16-30 min | 7 | 7% |
| 31-60 min | 10 | 10% |
| 61-120 min | 10 | 10% |
| 2+ hrs | 12 | 12% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 24 | 54% | +57 min |
| 2025-08 | 30 | 47% | +53 min |
| 2025-09 | 25 | 72% | +11 min |
| 2025-10 | 18 | 72% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 47% |
| Tue | 15 | 60% |
| Wed | 17 | 59% |
| Thu | 16 | 56% |
| Fri | 16 | 69% |
| Sat | 8 | 38% |
| Sun | 10 | 90% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…