How often is WN237 on time?

Across 15 flights on SMF → ONT from 2025-07-03 to 2025-08-04, WN237 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +8 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

• WN237 on HRL → DAL (7 flights)
• WN237 on OAK → ABQ (16 flights)
• WN237 on CHS → BNA (4 flights)
• WN237 on RNO → LAS (50 flights)
• WN237 on MCO → BNA (8 flights)
• WN237 on BOS → BWI (15 flights)
• WN237 on BWI → ATL (33 flights)
• WN237 on SAN → PHX (33 flights)
• WN237 on CHS → DAL (25 flights)
• WN237 on DEN → HOU (46 flights)
• WN237 on PHX → BUR (17 flights)
• WN237 on DAL → MSY (1 flights)
• WN237 on AUS → SMF (31 flights)
• WN237 on MCO → DAL (57 flights)
• WN237 on DAL → LBB (8 flights)
• WN237 on DAL → OMA (1 flights)
• WN237 on OMA → MDW (1 flights)
• WN237 on STL → SMF (34 flights)
• WN237 on SMF → BOI (5 flights)

Related

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