How often is WN3303 on time?

Across 57 flights on ONT → DEN from 2026-04-07 to 2026-06-03, WN3303 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was +4 min, and the worst 10% of flights arrived +47 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

• WN3303 on PHX → OAK (23 flights)
• WN3303 on SJC → ONT (8 flights)
• WN3303 on SAT → TPA (33 flights)
• WN3303 on DAL → SAT (8 flights)
• WN3303 on RDU → BWI (55 flights)
• WN3303 on PHX → HOU (3 flights)
• WN3303 on LAS → SJC (22 flights)
• WN3303 on SAN → LAS (38 flights)
• WN3303 on LAS → GEG (18 flights)
• WN3303 on LAS → AMA (24 flights)
• WN3303 on MSY → TPA (31 flights)
• WN3303 on STL → MSY (5 flights)
• WN3303 on LAS → SAN (58 flights)
• WN3303 on SFO → LAS (24 flights)
• WN3303 on SAN → ABQ (8 flights)
• WN3303 on DAL → MEM (1 flights)
• WN3303 on MEM → LAS (1 flights)
• WN3303 on BUF → MDW (1 flights)
• WN3303 on MDW → BUR (1 flights)

Related

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