Flight OddsOAK → ONT Southwest Airlines
Southwest Airlines · Oakland, CA to Ontario, CA · 1,489 flights, 2025-07-01 to 2026-06-30 · aggregated across 72 flight numbers
On-time arrival
84%
Median delay
-7 min
90th percentile
+31 min
Cancellation rate
0%
How on-time is Southwest Airlines from OAK to ONT?
Across every Southwest Airlines flight number on OAK → ONT (1,489 flights, 2025-07-01 to 2026-06-30), 84% arrived within 15 minutes of schedule. Median arrival delay -7 min; the worst 10% ran +31 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,238 | 84% |
| 16-30 min | 95 | 6% |
| 31-60 min | 86 | 6% |
| 61-120 min | 46 | 3% |
| 2+ hrs | 17 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 134 | 86% | +1 min |
| 2025-08 | 135 | 88% | -1 min |
| 2025-09 | 133 | 88% | +1 min |
| 2025-10 | 136 | 83% | +4 min |
| 2025-11 | 125 | 86% | +2 min |
| 2025-12 | 121 | 79% | +2 min |
| 2026-01 | 119 | 94% | -6 min |
| 2026-02 | 115 | 90% | +0 min |
| 2026-03 | 120 | 78% | +3 min |
| 2026-04 | 115 | 76% | +7 min |
| 2026-05 | 117 | 77% | +6 min |
| 2026-06 | 112 | 75% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 227 | 85% |
| Tue | 211 | 85% |
| Wed | 202 | 88% |
| Thu | 228 | 78% |
| Fri | 228 | 81% |
| Sat | 155 | 86% |
| Sun | 231 | 83% |
WN flight numbers on OAK → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…