Flight OddsUA3635 IAD → PWM
United Airlines · Washington, DC to Portland, ME · 53 flights observed, 2026-01-06 to 2026-03-04 · 493 mi
UA3635 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
90%
Median delay
-16 min
90th percentile
+9 min
Cancellation rate
4%
How often is UA3635 on time?
Across 53 flights on IAD → PWM from 2026-01-06 to 2026-03-04, UA3635 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived +9 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 | 46 | 90% |
| 16-30 min | 3 | 6% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 21 | 86% | +7 min |
| 2026-02 | 26 | 96% | -11 min |
| 2026-03 | 4 | 75% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 71% |
| Tue | 9 | 100% |
| Wed | 9 | 89% |
| Thu | 8 | 100% |
| Fri | 8 | 75% |
| Sat | 3 | 100% |
| Sun | 7 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…