How often is WN543 on time?

Across 58 flights on SJC → SAN from 2026-01-06 to 2026-03-04, WN543 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -1 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).

Performance by month

Performance by day of week

Other routes

• WN543 on SEA → OAK (7 flights)
• WN543 on SLC → LGB (16 flights)
• WN543 on OAK → ABQ (4 flights)
• WN543 on ALB → BWI (50 flights)
• WN543 on MDW → ALB (42 flights)
• WN543 on AUS → CHS (1 flights)
• WN543 on CHS → BWI (1 flights)
• WN543 on MKE → PHX (33 flights)
• WN543 on AUS → DEN (65 flights)
• WN543 on DEN → MEM (18 flights)
• WN543 on MCO → SJU (1 flights)
• WN543 on RDU → HOU (1 flights)
• WN543 on MCO → ATL (26 flights)
• WN543 on DTW → MDW (1 flights)
• WN543 on PHX → LGB (39 flights)
• WN543 on LGB → AUS (24 flights)
• WN543 on LGB → MDW (8 flights)
• WN543 on LGB → OAK (8 flights)
• WN543 on BWI → ALB (24 flights)
• WN543 on DEN → GRR (14 flights)
• WN543 on GRR → BWI (14 flights)
• WN543 on DEN → PHX (1 flights)
• WN543 on HOU → AUS (1 flights)

Related

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