Flight OddsSEA → ONT Frontier Airlines
Frontier Airlines · Seattle, WA to Ontario, CA · 169 flights, 2025-07-01 to 2026-06-30 · aggregated across 2 flight numbers
On-time arrival
78%
Median delay
-5 min
90th percentile
+45 min
Cancellation rate
1%
How on-time is Frontier Airlines from SEA to ONT?
Across every Frontier Airlines flight number on SEA → ONT (169 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -5 min; the worst 10% ran +45 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 131 | 78% |
| 16-30 min | 13 | 8% |
| 31-60 min | 8 | 5% |
| 61-120 min | 9 | 5% |
| 2+ hrs | 6 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 53% | +36 min |
| 2025-08 | 31 | 84% | -3 min |
| 2025-09 | 18 | 94% | -4 min |
| 2025-10 | 14 | 93% | 0 min |
| 2025-11 | 17 | 76% | +6 min |
| 2025-12 | 15 | 47% | +26 min |
| 2026-01 | 6 | 100% | -13 min |
| 2026-05 | 9 | 100% | -11 min |
| 2026-06 | 27 | 89% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 30 | 67% |
| Tue | 17 | 76% |
| Wed | 13 | 85% |
| Thu | 21 | 86% |
| Fri | 33 | 82% |
| Sat | 19 | 63% |
| Sun | 34 | 88% |
F9 flight numbers on SEA → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…