How often is WN4478 on time?

Across 24 flights on SJC → LAS from 2025-08-07 to 2025-09-29, WN4478 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +56 min or later. 4% of flights were cancelled.

Delay distribution

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

Performance by month

Performance by day of week

Other routes

• WN4478 on DAL → LGA (26 flights)
• WN4478 on ATL → AUS (1 flights)
• WN4478 on MCO → DAL (58 flights)
• WN4478 on DAL → SAT (24 flights)
• WN4478 on PHX → SFO (5 flights)
• WN4478 on LAS → HOU (1 flights)
• WN4478 on TUL → LAS (18 flights)
• WN4478 on SJC → LGB (30 flights)
• WN4478 on LAS → BNA (24 flights)
• WN4478 on SFO → DEN (30 flights)

Related

• All Southwest Airlines flights on SJC → LAS
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• Southwest Airlines on the return, LAS → SJC