How often is WN3959 on time?

Across 18 flights on OAK → DEN from 2026-04-07 to 2026-06-03, WN3959 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +22 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

• WN3959 on BWI → ROC (7 flights)
• WN3959 on DEN → MIA (4 flights)
• WN3959 on DAL → LBB (4 flights)
• WN3959 on PSP → OAK (49 flights)
• WN3959 on MDW → LGA (28 flights)
• WN3959 on MKE → STL (11 flights)
• WN3959 on SAN → MKE (8 flights)
• WN3959 on LAS → GEG (13 flights)
• WN3959 on IND → MCO (3 flights)
• WN3959 on BOI → SJC (1 flights)
• WN3959 on SJC → SNA (1 flights)
• WN3959 on LAS → PHX (1 flights)
• WN3959 on DEN → SNA (7 flights)
• WN3959 on DEN → RNO (10 flights)

Related

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