Flight OddsIAH → GRR United Airlines
United Airlines · Houston, TX to Grand Rapids, MI · 366 flights, 2025-07-01 to 2026-06-30 · aggregated across 12 flight numbers
On-time arrival
78%
Median delay
-6 min
90th percentile
+42 min
Cancellation rate
1%
How on-time is United Airlines from IAH to GRR?
Across every United Airlines flight number on IAH → GRR (366 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +42 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 281 | 78% |
| 16-30 min | 36 | 10% |
| 31-60 min | 16 | 4% |
| 61-120 min | 23 | 6% |
| 2+ hrs | 5 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 67% | +18 min |
| 2025-08 | 31 | 74% | +8 min |
| 2025-09 | 31 | 84% | -1 min |
| 2025-10 | 31 | 77% | +3 min |
| 2025-11 | 30 | 73% | +34 min |
| 2025-12 | 31 | 87% | +1 min |
| 2026-01 | 29 | 79% | +2 min |
| 2026-02 | 28 | 86% | +1 min |
| 2026-03 | 29 | 69% | +11 min |
| 2026-04 | 30 | 87% | -1 min |
| 2026-05 | 31 | 87% | +18 min |
| 2026-06 | 30 | 63% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 75% |
| Tue | 53 | 79% |
| Wed | 52 | 83% |
| Thu | 52 | 83% |
| Fri | 52 | 79% |
| Sat | 49 | 67% |
| Sun | 51 | 78% |
UA flight numbers on IAH → GRR
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…