How often is WN938 on time?

Across 58 flights on SMF → ONT from 2026-04-07 to 2026-06-03, WN938 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +24 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

• WN938 on BWI → DEN (19 flights)
• WN938 on MHT → BWI (12 flights)
• WN938 on BWI → HOU (4 flights)
• WN938 on BWI → ORF (4 flights)
• WN938 on DAL → BUR (4 flights)
• WN938 on FLL → BWI (4 flights)
• WN938 on MDW → DAL (4 flights)
• WN938 on ORF → MDW (4 flights)
• WN938 on DEN → RIC (28 flights)
• WN938 on STL → LAS (28 flights)
• WN938 on LAS → SLC (19 flights)
• WN938 on BWI → LAX (11 flights)
• WN938 on DTW → BNA (64 flights)
• WN938 on BWI → BUF (1 flights)
• WN938 on BWI → JAX (31 flights)
• WN938 on JAX → HOU (8 flights)
• WN938 on DEN → LGA (42 flights)
• WN938 on SJC → LGB (16 flights)
• WN938 on MCI → BNA (35 flights)

Related

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