Flight OddsUA4397 EWR → PWM
United Airlines · Newark, NJ to Portland, ME · 45 flights observed, 2025-12-03 to 2026-04-28 · 284 mi
UA4397 covers more than one route in the data window — the stats below are for EWR → PWM, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-10 min
90th percentile
+44 min
Cancellation rate
0%
How often is UA4397 on time?
Across 45 flights on EWR → PWM from 2025-12-03 to 2026-04-28, UA4397 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +44 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 | 37 | 84% |
| 16-30 min | 1 | 2% |
| 31-60 min | 4 | 9% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 86% | -4 min |
| 2026-03 | 3 | 100% | -16 min |
| 2026-04 | 27 | 81% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 86% |
| Tue | 7 | 86% |
| Wed | 7 | 86% |
| Thu | 6 | 50% |
| Fri | 6 | 100% |
| Sat | 5 | 100% |
| Sun | 6 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…