Flight OddsUA1531 ORD → GRR
United Airlines · Chicago, IL to Grand Rapids, MI · 107 flights observed, 2025-10-26 to 2026-02-11 · 137 mi
UA1531 covers more than one route in the data window — the stats below are for ORD → GRR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
48%
Median delay
+17 min
90th percentile
+83 min
Cancellation rate
0%
How often is UA1531 on time?
Across 107 flights on ORD → GRR from 2025-10-26 to 2026-02-11, UA1531 arrived within 15 minutes of schedule 48% of the time. The median arrival delay was +17 min, and the worst 10% of flights arrived +83 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 51 | 48% |
| 16-30 min | 21 | 20% |
| 31-60 min | 20 | 19% |
| 61-120 min | 7 | 7% |
| 2+ hrs | 8 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 33% | +44 min |
| 2025-11 | 29 | 52% | +36 min |
| 2025-12 | 31 | 55% | +24 min |
| 2026-01 | 31 | 45% | +31 min |
| 2026-02 | 10 | 30% | +48 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 50% |
| Tue | 15 | 53% |
| Wed | 16 | 50% |
| Thu | 14 | 43% |
| Fri | 15 | 53% |
| Sat | 15 | 47% |
| Sun | 16 | 38% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…