WN4603 SJC → PDX

Southwest Airlines · San Jose, CA to Portland, OR · 36 flights observed, 2025-11-02 to 2026-01-05 · 569 mi

This flight has been getting more reliable recently — 2025-12's on-time rate (100%) is well above the 71% average from earlier months.

WN4603 covers more than one route in the data window — the stats below are for SJC → PDX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
86%
Median delay
-7 min
90th percentile
+23 min
Cancellation rate
0%

How often is WN4603 on time?

Across 36 flights on SJC → PDX from 2025-11-02 to 2026-01-05, WN4603 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +23 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time3186%
16-30 min38%
31-60 min13%
61-120 min13%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-111771%+7 min
2025-1215100%-7 min
2026-014100%-21 min

Performance by day of week

DayFlightsOn-time
Mon683%
Tue3100%
Wed1100%
Thu3100%
Fri875%
Sat5100%
Sun1080%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…