Flight OddsWN3021 ONT → DEN
Southwest Airlines · Ontario, CA to Denver, CO · 25 flights observed, 2026-01-11 to 2026-03-02 · 819 mi
WN3021 covers more than one route in the data window — the stats below are for ONT → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-8 min
90th percentile
+17 min
Cancellation rate
4%
How often is WN3021 on time?
Across 25 flights on ONT → DEN from 2026-01-11 to 2026-03-02, WN3021 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +17 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 20 | 83% |
| 16-30 min | 3 | 13% |
| 31-60 min | 1 | 4% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 5 | 80% | -2 min |
| 2026-02 | 17 | 82% | -4 min |
| 2026-03 | 2 | 100% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | 3 | 100% |
| Sun | 6 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…