Flight OddsORD → PWM United Airlines
United Airlines · Chicago, IL to Portland, ME · 836 flights, 2025-07-01 to 2026-06-30 · aggregated across 27 flight numbers
On-time arrival
73%
Median delay
-2 min
90th percentile
+55 min
Cancellation rate
2%
How on-time is United Airlines from ORD to PWM?
Across every United Airlines flight number on ORD → PWM (836 flights, 2025-07-01 to 2026-06-30), 73% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +55 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 600 | 73% |
| 16-30 min | 65 | 8% |
| 31-60 min | 77 | 9% |
| 61-120 min | 41 | 5% |
| 2+ hrs | 35 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 81 | 68% | +22 min |
| 2025-08 | 86 | 73% | +7 min |
| 2025-09 | 88 | 83% | +2 min |
| 2025-10 | 76 | 86% | -3 min |
| 2025-11 | 56 | 77% | +5 min |
| 2025-12 | 60 | 62% | +29 min |
| 2026-01 | 33 | 61% | +24 min |
| 2026-02 | 42 | 86% | +3 min |
| 2026-03 | 57 | 63% | +22 min |
| 2026-04 | 87 | 67% | +10 min |
| 2026-05 | 93 | 78% | +10 min |
| 2026-06 | 59 | 69% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 116 | 72% |
| Tue | 113 | 77% |
| Wed | 110 | 71% |
| Thu | 121 | 76% |
| Fri | 121 | 78% |
| Sat | 119 | 66% |
| Sun | 118 | 73% |
UA flight numbers on ORD → PWM
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…