Flight OddsWN3666 SJC → DEN
Southwest Airlines · San Jose, CA to Denver, CO · 16 flights observed, 2026-06-04 to 2026-06-29 · 948 mi
WN3666 covers more than one route in the data window — the stats below are for SJC → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
44%
Median delay
+21 min
90th percentile
+58 min
Cancellation rate
0%
How often is WN3666 on time?
Across 16 flights on SJC → DEN from 2026-06-04 to 2026-06-29, WN3666 arrived within 15 minutes of schedule 44% of the time. The median arrival delay was +21 min, and the worst 10% of flights arrived +58 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 | 7 | 44% |
| 16-30 min | 4 | 25% |
| 31-60 min | 3 | 19% |
| 61-120 min | 2 | 13% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-06 | 16 | 44% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 0% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 4 | 25% |
| Fri | 4 | 50% |
| Sat | No data | — |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…