Flight OddsWN1721 DEN → SAN
Southwest Airlines · Denver, CO to San Diego, CA · 40 flights observed, 2025-08-07 to 2025-09-29 · 853 mi
WN1721 covers more than one route in the data window — the stats below are for DEN → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
46%
Median delay
+31 min
90th percentile
+106 min
Cancellation rate
3%
How often is WN1721 on time?
Across 40 flights on DEN → SAN from 2025-08-07 to 2025-09-29, WN1721 arrived within 15 minutes of schedule 46% of the time. The median arrival delay was +31 min, and the worst 10% of flights arrived +106 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 18 | 46% |
| 16-30 min | 1 | 3% |
| 31-60 min | 10 | 26% |
| 61-120 min | 8 | 21% |
| 2+ hrs | 2 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 18 | 39% | +40 min |
| 2025-09 | 21 | 52% | +36 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 50% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 8 | 0% |
| Fri | 8 | 38% |
| Sat | 8 | 75% |
| Sun | 7 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…