Flight OddsSTS → ONT Alaska Airlines
Alaska Airlines · Santa Rosa, CA to Ontario, CA · 105 flights, 2026-03-18 to 2026-06-30 · aggregated across 4 flight numbers
On-time arrival
91%
Median delay
-8 min
90th percentile
+12 min
Cancellation rate
0%
How on-time is Alaska Airlines from STS to ONT?
Across every Alaska Airlines flight number on STS → ONT (105 flights, 2026-03-18 to 2026-06-30), 91% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +12 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 96 | 91% |
| 16-30 min | 2 | 2% |
| 31-60 min | 3 | 3% |
| 61-120 min | 3 | 3% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 14 | 86% | +18 min |
| 2026-04 | 30 | 90% | -4 min |
| 2026-05 | 31 | 97% | -4 min |
| 2026-06 | 30 | 90% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 100% |
| Tue | 15 | 73% |
| Wed | 15 | 93% |
| Thu | 15 | 100% |
| Fri | 15 | 93% |
| Sat | 15 | 87% |
| Sun | 15 | 93% |
AS flight numbers on STS → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…