Flight OddsLAS → ONT Southwest Airlines
Southwest Airlines · Las Vegas, NV to Ontario, CA · 1,755 flights, 2025-07-01 to 2026-06-30 · aggregated across 114 flight numbers
On-time arrival
74%
Median delay
-3 min
90th percentile
+45 min
Cancellation rate
1%
How on-time is Southwest Airlines from LAS to ONT?
Across every Southwest Airlines flight number on LAS → ONT (1,755 flights, 2025-07-01 to 2026-06-30), 74% arrived within 15 minutes of schedule. Median arrival delay -3 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 | 1,290 | 74% |
| 16-30 min | 170 | 10% |
| 31-60 min | 163 | 9% |
| 61-120 min | 91 | 5% |
| 2+ hrs | 27 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 155 | 68% | +15 min |
| 2025-08 | 138 | 80% | +2 min |
| 2025-09 | 133 | 74% | +6 min |
| 2025-10 | 157 | 66% | +14 min |
| 2025-11 | 143 | 70% | +14 min |
| 2025-12 | 153 | 78% | +6 min |
| 2026-01 | 149 | 83% | -1 min |
| 2026-02 | 136 | 77% | +6 min |
| 2026-03 | 147 | 77% | +4 min |
| 2026-04 | 142 | 82% | +0 min |
| 2026-05 | 143 | 74% | +7 min |
| 2026-06 | 145 | 61% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 266 | 72% |
| Tue | 258 | 83% |
| Wed | 254 | 78% |
| Thu | 265 | 70% |
| Fri | 262 | 70% |
| Sat | 171 | 81% |
| Sun | 265 | 67% |
WN flight numbers on LAS → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…