Flight OddsWN1521 GEG → SJC
Southwest Airlines · Spokane, WA to San Jose, CA · 24 flights observed, 2025-08-07 to 2025-09-29 · 742 mi
WN1521 covers more than one route in the data window — the stats below are for GEG → SJC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
+7 min
90th percentile
+29 min
Cancellation rate
0%
How often is WN1521 on time?
Across 24 flights on GEG → SJC from 2025-08-07 to 2025-09-29, WN1521 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +29 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 | 18 | 75% |
| 16-30 min | 4 | 17% |
| 31-60 min | 2 | 8% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 11 | 64% | +13 min |
| 2025-09 | 13 | 85% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 88% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 8 | 63% |
| Fri | 8 | 75% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…