How often is WN3431 on time?

Across 58 flights on SAN → SMF from 2026-01-06 to 2026-03-04, WN3431 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived 0 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

• WN3431 on RDU → MCO (23 flights)
• WN3431 on ABQ → BWI (4 flights)
• WN3431 on MIA → STL (39 flights)
• WN3431 on MCO → PHL (33 flights)
• WN3431 on PHL → MDW (15 flights)
• WN3431 on DTW → MDW (46 flights)
• WN3431 on LGA → DAL (18 flights)
• WN3431 on DAL → SLC (5 flights)
• WN3431 on LAS → DTW (24 flights)
• WN3431 on BWI → DTW (1 flights)
• WN3431 on LAS → SNA (31 flights)
• WN3431 on SNA → SMF (14 flights)
• WN3431 on SEA → LAS (1 flights)
• WN3431 on PDX → LAS (4 flights)
• WN3431 on ALB → MCO (15 flights)
• WN3431 on LAS → SJC (25 flights)
• WN3431 on LGB → LAS (24 flights)
• WN3431 on RNO → LGB (5 flights)

Related

• All Southwest Airlines flights on SAN → SMF
• Compare airlines on SAN → SMF
• Southwest Airlines on the return, SMF → SAN