Flight OddsMIA → ORD United Airlines
United Airlines · Miami, FL to Chicago, IL · 1,040 flights, 2025-07-01 to 2026-06-30 · aggregated across 22 flight numbers
On-time arrival
72%
Median delay
-1 min
90th percentile
+73 min
Cancellation rate
1%
How on-time is United Airlines from MIA to ORD?
Across every United Airlines flight number on MIA → ORD (1,040 flights, 2025-07-01 to 2026-06-30), 72% arrived within 15 minutes of schedule. Median arrival delay -1 min; the worst 10% ran +73 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 741 | 72% |
| 16-30 min | 94 | 9% |
| 31-60 min | 69 | 7% |
| 61-120 min | 63 | 6% |
| 2+ hrs | 57 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 61 | 66% | +32 min |
| 2025-08 | 54 | 59% | +34 min |
| 2025-09 | 48 | 69% | +9 min |
| 2025-10 | 58 | 84% | +5 min |
| 2025-11 | 82 | 67% | +28 min |
| 2025-12 | 110 | 75% | +11 min |
| 2026-01 | 113 | 76% | +14 min |
| 2026-02 | 111 | 74% | +7 min |
| 2026-03 | 131 | 66% | +43 min |
| 2026-04 | 82 | 88% | +5 min |
| 2026-05 | 86 | 72% | +9 min |
| 2026-06 | 88 | 69% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 156 | 74% |
| Tue | 125 | 78% |
| Wed | 122 | 78% |
| Thu | 157 | 73% |
| Fri | 162 | 67% |
| Sat | 149 | 73% |
| Sun | 153 | 67% |
UA flight numbers on MIA → ORD
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…