Flight OddsWN4270 SJC → SEA
Southwest Airlines · San Jose, CA to Seattle, WA · 13 flights observed, 2025-10-02 to 2025-10-30 · 696 mi
WN4270 covers more than one route in the data window — the stats below are for SJC → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
+4 min
90th percentile
+19 min
Cancellation rate
0%
How often is WN4270 on time?
Across 13 flights on SJC → SEA from 2025-10-02 to 2025-10-30, WN4270 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +19 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 | 9 | 69% |
| 16-30 min | 3 | 23% |
| 31-60 min | 1 | 8% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 13 | 69% | 0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 80% |
| Fri | 4 | 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…