Flight OddsWN1737 DEN → ONT
Southwest Airlines · Denver, CO to Ontario, CA · 50 flights observed, 2025-08-05 to 2025-10-01 · 819 mi
WN1737 covers more than one route in the data window — the stats below are for DEN → ONT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
+1 min
90th percentile
+38 min
Cancellation rate
0%
How often is WN1737 on time?
Across 50 flights on DEN → ONT from 2025-08-05 to 2025-10-01, WN1737 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +38 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 30 | 60% |
| 16-30 min | 14 | 28% |
| 31-60 min | 3 | 6% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 23 | 61% | +14 min |
| 2025-09 | 26 | 58% | +11 min |
| 2025-10 | 1 | 100% | -4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 38% |
| Tue | 9 | 78% |
| Wed | 9 | 100% |
| Thu | 8 | 63% |
| Fri | 8 | 13% |
| Sat | No data | — |
| Sun | 8 | 63% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…