How often is WN4331 on time?

Across 16 flights on DEN → ONT from 2026-01-10 to 2026-03-01, WN4331 arrived within 15 minutes of schedule 94% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +2 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

• WN4331 on DEN → SAN (23 flights)
• WN4331 on SMF → DEN (56 flights)
• WN4331 on LAX → MCI (1 flights)
• WN4331 on RSW → MDW (33 flights)
• WN4331 on ONT → OAK (50 flights)
• WN4331 on ONT → PHX (5 flights)
• WN4331 on PHX → OMA (5 flights)
• WN4331 on LGA → DAL (16 flights)
• WN4331 on SJC → SAN (18 flights)
• WN4331 on DAL → SAN (4 flights)
• WN4331 on DAL → OMA (1 flights)
• WN4331 on OMA → MDW (1 flights)
• WN4331 on SMF → KOA (58 flights)
• WN4331 on BNA → MCI (5 flights)
• WN4331 on AUS → ECP (5 flights)

Related

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