How often is WN4127 on time?

Across 50 flights on SAN → SMF from 2026-04-07 to 2026-06-03, WN4127 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +10 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

• WN4127 on MEM → DAL (23 flights)
• WN4127 on DAL → AMA (16 flights)
• WN4127 on AMA → LAS (4 flights)
• WN4127 on DAL → COS (4 flights)
• WN4127 on SMF → AUS (1 flights)
• WN4127 on ONT → BNA (25 flights)
• WN4127 on RSW → BWI (1 flights)
• WN4127 on SMF → LAS (1 flights)
• WN4127 on MCO → HOU (1 flights)
• WN4127 on MCO → BNA (1 flights)
• WN4127 on PHX → SLC (46 flights)
• WN4127 on STL → DEN (13 flights)
• WN4127 on MDW → STL (5 flights)
• WN4127 on MCO → PHX (1 flights)
• WN4127 on PHX → LAS (10 flights)

Related

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