How often is WN1856 on time?

Across 23 flights on ONT → SMF from 2026-03-05 to 2026-04-06, WN1856 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +20 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

• WN1856 on DEN → ECP (32 flights)
• WN1856 on SAV → BNA (1 flights)
• WN1856 on HOU → DEN (58 flights)
• WN1856 on BWI → PVD (39 flights)
• WN1856 on PVD → MCO (13 flights)
• WN1856 on CMH → BWI (1 flights)
• WN1856 on LGB → LAS (1 flights)
• WN1856 on BUR → OAK (22 flights)
• WN1856 on BUR → LAS (4 flights)
• WN1856 on LAS → ROC (4 flights)
• WN1856 on FLL → BWI (42 flights)
• WN1856 on STL → LAS (7 flights)
• WN1856 on BWI → ORF (8 flights)
• WN1856 on SMF → SAN (24 flights)
• WN1856 on SAN → IND (14 flights)
• WN1856 on OKC → LAS (10 flights)
• WN1856 on LAS → EUG (5 flights)
• WN1856 on SAT → OKC (5 flights)
• WN1856 on SAN → SAT (10 flights)
• WN1856 on STL → MCI (1 flights)

Related

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