Flight OddsUA3521 PWM → EWR
United Airlines · Portland, ME to Newark, NJ · 49 flights observed, 2025-07-01 to 2025-08-18 · 284 mi
UA3521 covers more than one route in the data window — the stats below are for PWM → EWR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
-9 min
90th percentile
+146 min
Cancellation rate
4%
How often is UA3521 on time?
Across 49 flights on PWM → EWR from 2025-07-01 to 2025-08-18, UA3521 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +146 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 33 | 70% |
| 16-30 min | 1 | 2% |
| 31-60 min | 4 | 9% |
| 61-120 min | 3 | 6% |
| 2+ hrs | 6 | 13% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 70% | +28 min |
| 2025-08 | 17 | 71% | +33 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 57% |
| Tue | 6 | 100% |
| Wed | 6 | 83% |
| Thu | 7 | 71% |
| Fri | 7 | 86% |
| Sat | 7 | 14% |
| Sun | 7 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…