Flight OddsSFO → ONT Frontier Airlines
Frontier Airlines · San Francisco, CA to Ontario, CA · 177 flights, 2025-07-04 to 2026-06-30 · aggregated across 1 flight number
On-time arrival
58%
Median delay
+7 min
90th percentile
+104 min
Cancellation rate
3%
How on-time is Frontier Airlines from SFO to ONT?
Across every Frontier Airlines flight number on SFO → ONT (177 flights, 2025-07-04 to 2026-06-30), 58% arrived within 15 minutes of schedule. Median arrival delay +7 min; the worst 10% ran +104 min or later. 3% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 99 | 58% |
| 16-30 min | 21 | 12% |
| 31-60 min | 19 | 11% |
| 61-120 min | 19 | 11% |
| 2+ hrs | 13 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 12 | 50% | +88 min |
| 2025-08 | 15 | 53% | +103 min |
| 2025-09 | 17 | 41% | +75 min |
| 2025-10 | 18 | 39% | +38 min |
| 2025-11 | 21 | 48% | +43 min |
| 2025-12 | 14 | 57% | +68 min |
| 2026-01 | 5 | 80% | +8 min |
| 2026-03 | 8 | 100% | -11 min |
| 2026-04 | 13 | 85% | -5 min |
| 2026-05 | 19 | 63% | +4 min |
| 2026-06 | 29 | 62% | +25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 42 | 60% |
| Tue | 7 | 71% |
| Wed | 6 | 33% |
| Thu | 30 | 57% |
| Fri | 41 | 61% |
| Sat | 8 | 75% |
| Sun | 37 | 51% |
F9 flight numbers on SFO → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…