How often is WN3909 on time?

Across 8 flights on LAS → SFO from 2026-02-12 to 2026-03-01, WN3909 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +33 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

• WN3909 on STL → DEN (27 flights)
• WN3909 on HOU → MCO (4 flights)
• WN3909 on MCO → MCI (1 flights)
• WN3909 on DAL → MCO (31 flights)
• WN3909 on DEN → GEG (13 flights)
• WN3909 on AUS → DAL (6 flights)
• WN3909 on OAK → DAL (13 flights)
• WN3909 on OKC → DCA (50 flights)
• WN3909 on SAT → OKC (1 flights)
• WN3909 on LAS → FAT (1 flights)

Related

• All Southwest Airlines flights on LAS → SFO
• Compare airlines on LAS → SFO
• Southwest Airlines on the return, SFO → LAS