How often is WN478 on time?

Across 33 flights on SMF → DEN from 2026-03-05 to 2026-04-06, WN478 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +20 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

• WN478 on BNA → CLT (19 flights)
• WN478 on CLT → BWI (19 flights)
• WN478 on HOU → BNA (16 flights)
• WN478 on PHX → HOU (4 flights)
• WN478 on TUS → PHX (4 flights)
• WN478 on BNA → MDW (4 flights)
• WN478 on TUL → PHX (4 flights)
• WN478 on HOU → TUL (4 flights)
• WN478 on BNA → SAT (34 flights)
• WN478 on SAT → SAN (1 flights)
• WN478 on BNA → CMH (53 flights)
• WN478 on OAK → SAN (3 flights)
• WN478 on PHX → BNA (3 flights)
• WN478 on SAN → PHX (3 flights)
• WN478 on BWI → ALB (60 flights)
• WN478 on BNA → BUF (1 flights)
• WN478 on SAN → MDW (10 flights)
• WN478 on MDW → SMF (8 flights)
• WN478 on AUS → BNA (58 flights)
• WN478 on DAL → AUS (18 flights)
• WN478 on STL → MDW (15 flights)
• WN478 on TPA → STL (19 flights)
• WN478 on BNA → BOS (5 flights)
• WN478 on DAL → PHX (10 flights)

Related

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