Flight OddsUA3507 ORD → PWM
United Airlines · Chicago, IL to Portland, ME · 34 flights observed, 2025-10-26 to 2025-12-01 · 900 mi
UA3507 covers more than one route in the data window — the stats below are for ORD → PWM, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-1 min
90th percentile
+46 min
Cancellation rate
6%
How often is UA3507 on time?
Across 34 flights on ORD → PWM from 2025-10-26 to 2025-12-01, UA3507 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +46 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 | 24 | 75% |
| 16-30 min | 3 | 9% |
| 31-60 min | 4 | 13% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 83% | +7 min |
| 2025-11 | 25 | 76% | +1 min |
| 2025-12 | 1 | 0% | +207 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 5 | 80% |
| Wed | 5 | 80% |
| Thu | 4 | 50% |
| Fri | 5 | 80% |
| Sat | 4 | 75% |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…