Flight OddsDEN → ONT Southwest Airlines
Southwest Airlines · Denver, CO to Ontario, CA · 1,267 flights, 2025-07-01 to 2026-06-30 · aggregated across 49 flight numbers
On-time arrival
70%
Median delay
+2 min
90th percentile
+53 min
Cancellation rate
0%
How on-time is Southwest Airlines from DEN to ONT?
Across every Southwest Airlines flight number on DEN → ONT (1,267 flights, 2025-07-01 to 2026-06-30), 70% arrived within 15 minutes of schedule. Median arrival delay +2 min; the worst 10% ran +53 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 884 | 70% |
| 16-30 min | 142 | 11% |
| 31-60 min | 136 | 11% |
| 61-120 min | 74 | 6% |
| 2+ hrs | 29 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 118 | 53% | +29 min |
| 2025-08 | 110 | 67% | +19 min |
| 2025-09 | 107 | 71% | +10 min |
| 2025-10 | 110 | 68% | +13 min |
| 2025-11 | 104 | 81% | +5 min |
| 2025-12 | 106 | 65% | +15 min |
| 2026-01 | 92 | 80% | -3 min |
| 2026-02 | 83 | 83% | +2 min |
| 2026-03 | 105 | 81% | +8 min |
| 2026-04 | 106 | 77% | +10 min |
| 2026-05 | 110 | 73% | +9 min |
| 2026-06 | 114 | 46% | +23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 196 | 62% |
| Tue | 170 | 77% |
| Wed | 165 | 78% |
| Thu | 194 | 65% |
| Fri | 196 | 69% |
| Sat | 151 | 73% |
| Sun | 193 | 68% |
WN flight numbers on DEN → ONT
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…