Flight OddsUA4552 IAD → PWM
United Airlines · Washington, DC to Portland, ME · 71 flights observed, 2025-10-26 to 2026-01-05 · 493 mi
UA4552 covers more than one route in the data window — the stats below are for IAD → PWM, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
52%
Median delay
+12 min
90th percentile
+240 min
Cancellation rate
3%
How often is UA4552 on time?
Across 71 flights on IAD → PWM from 2025-10-26 to 2026-01-05, UA4552 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +12 min, and the worst 10% of flights arrived +240 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 35 | 52% |
| 16-30 min | 9 | 13% |
| 31-60 min | 5 | 7% |
| 61-120 min | 6 | 9% |
| 2+ hrs | 12 | 18% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 5 | 40% | +127 min |
| 2025-11 | 28 | 54% | +42 min |
| 2025-12 | 29 | 55% | +42 min |
| 2026-01 | 5 | 40% | +128 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 40% |
| Tue | 10 | 70% |
| Wed | 10 | 40% |
| Thu | 8 | 13% |
| Fri | 9 | 67% |
| Sat | 10 | 70% |
| Sun | 10 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…