Flight OddsPWM → ORD United Airlines
United Airlines · Portland, ME to Chicago, IL · 836 flights, 2025-07-01 to 2026-06-30 · aggregated across 30 flight numbers
On-time arrival
76%
Median delay
-3 min
90th percentile
+45 min
Cancellation rate
3%
How on-time is United Airlines from PWM to ORD?
Across every United Airlines flight number on PWM → ORD (836 flights, 2025-07-01 to 2026-06-30), 76% arrived within 15 minutes of schedule. Median arrival delay -3 min; the worst 10% ran +45 min or later. 3% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 618 | 76% |
| 16-30 min | 78 | 10% |
| 31-60 min | 45 | 6% |
| 61-120 min | 30 | 4% |
| 2+ hrs | 37 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 80 | 56% | +48 min |
| 2025-08 | 85 | 78% | +26 min |
| 2025-09 | 86 | 76% | +12 min |
| 2025-10 | 76 | 76% | +16 min |
| 2025-11 | 54 | 70% | +5 min |
| 2025-12 | 60 | 80% | +6 min |
| 2026-01 | 34 | 59% | +50 min |
| 2026-02 | 41 | 85% | -1 min |
| 2026-03 | 57 | 67% | +34 min |
| 2026-04 | 83 | 86% | -3 min |
| 2026-05 | 93 | 92% | -2 min |
| 2026-06 | 59 | 81% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 113 | 73% |
| Tue | 112 | 77% |
| Wed | 110 | 75% |
| Thu | 118 | 74% |
| Fri | 121 | 80% |
| Sat | 115 | 79% |
| Sun | 119 | 78% |
UA flight numbers on PWM → ORD
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…