Flight OddsSFO → ONT United Airlines
United Airlines · San Francisco, CA to Ontario, CA · 1,114 flights, 2025-07-01 to 2026-06-30 · aggregated across 32 flight numbers
On-time arrival
81%
Median delay
-4 min
90th percentile
+36 min
Cancellation rate
1%
How on-time is United Airlines from SFO to ONT?
Across every United Airlines flight number on SFO → ONT (1,114 flights, 2025-07-01 to 2026-06-30), 81% arrived within 15 minutes of schedule. Median arrival delay -4 min; the worst 10% ran +36 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 899 | 81% |
| 16-30 min | 82 | 7% |
| 31-60 min | 66 | 6% |
| 61-120 min | 38 | 3% |
| 2+ hrs | 23 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 92 | 74% | +12 min |
| 2025-08 | 93 | 82% | +12 min |
| 2025-09 | 91 | 85% | 0 min |
| 2025-10 | 96 | 81% | +5 min |
| 2025-11 | 82 | 78% | +10 min |
| 2025-12 | 88 | 78% | +10 min |
| 2026-01 | 85 | 84% | +22 min |
| 2026-02 | 79 | 77% | +11 min |
| 2026-03 | 95 | 92% | -5 min |
| 2026-04 | 111 | 83% | +4 min |
| 2026-05 | 106 | 83% | -2 min |
| 2026-06 | 90 | 76% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 166 | 78% |
| Tue | 153 | 84% |
| Wed | 150 | 82% |
| Thu | 153 | 77% |
| Fri | 164 | 79% |
| Sat | 155 | 84% |
| Sun | 167 | 84% |
UA flight numbers on SFO → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…