Flight OddsWN4277 SJC → DEN
Southwest Airlines · San Jose, CA to Denver, CO · 35 flights observed, 2025-07-01 to 2025-08-04 · 948 mi
WN4277 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
65%
Median delay
+9 min
90th percentile
+58 min
Cancellation rate
3%
How often is WN4277 on time?
Across 35 flights on SJC → DEN from 2025-07-01 to 2025-08-04, WN4277 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was +9 min, and the worst 10% of flights arrived +58 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 | 22 | 65% |
| 16-30 min | 5 | 15% |
| 31-60 min | 4 | 12% |
| 61-120 min | 2 | 6% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 70% | +23 min |
| 2025-08 | 4 | 25% | +38 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 100% |
| Tue | 5 | 100% |
| Wed | 4 | 100% |
| Thu | 5 | 20% |
| Fri | 5 | 40% |
| Sat | 5 | 60% |
| Sun | 5 | 40% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…