Flight OddsIAH → ONT United Airlines
United Airlines · Houston, TX to Ontario, CA · 365 flights, 2025-07-01 to 2026-06-30 · aggregated across 5 flight numbers
On-time arrival
78%
Median delay
-5 min
90th percentile
+52 min
Cancellation rate
0%
How on-time is United Airlines from IAH to ONT?
Across every United Airlines flight number on IAH → ONT (365 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -5 min; the worst 10% ran +52 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 285 | 78% |
| 16-30 min | 22 | 6% |
| 31-60 min | 24 | 7% |
| 61-120 min | 18 | 5% |
| 2+ hrs | 15 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 61% | +31 min |
| 2025-08 | 31 | 71% | +21 min |
| 2025-09 | 30 | 83% | +8 min |
| 2025-10 | 31 | 68% | +11 min |
| 2025-11 | 30 | 67% | +18 min |
| 2025-12 | 30 | 83% | -3 min |
| 2026-01 | 31 | 94% | -11 min |
| 2026-02 | 28 | 89% | -12 min |
| 2026-03 | 31 | 81% | -2 min |
| 2026-04 | 30 | 87% | +4 min |
| 2026-05 | 31 | 84% | +4 min |
| 2026-06 | 30 | 73% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 79% |
| Tue | 53 | 85% |
| Wed | 52 | 75% |
| Thu | 52 | 73% |
| Fri | 52 | 83% |
| Sat | 52 | 77% |
| Sun | 51 | 76% |
UA flight numbers on IAH → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…