How often is WN257 on time?

Across 7 flights on ONT → DAL from 2026-04-12 to 2026-05-31, WN257 arrived within 15 minutes of schedule 33% of the time. The median arrival delay was +21 min, and the worst 10% of flights arrived +43 min or later. 14% 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

• WN257 on STL → ATL (7 flights)
• WN257 on SAN → MDW (12 flights)
• WN257 on LAS → LGB (4 flights)
• WN257 on LGB → OAK (4 flights)
• WN257 on SMF → LAS (4 flights)
• WN257 on SFO → LAX (4 flights)
• WN257 on ONT → PHX (42 flights)
• WN257 on SAN → COS (1 flights)
• WN257 on COS → DEN (1 flights)
• WN257 on BWI → DTW (23 flights)
• WN257 on DTW → DEN (33 flights)
• WN257 on MCO → DTW (5 flights)
• WN257 on TPA → DTW (5 flights)
• WN257 on SAT → PHX (8 flights)
• WN257 on DAL → TPA (8 flights)
• WN257 on SAN → DAL (8 flights)
• WN257 on HOU → ATL (21 flights)
• WN257 on LAS → SEA (41 flights)
• WN257 on BUR → LAS (40 flights)
• WN257 on PHX → LAS (22 flights)
• WN257 on LAS → DAL (1 flights)
• WN257 on ATL → MDW (1 flights)
• WN257 on OAK → PHX (26 flights)
• WN257 on MCO → ALB (58 flights)
• WN257 on ALB → BWI (40 flights)
• WN257 on BWI → PHX (25 flights)
• WN257 on MCI → MCO (10 flights)
• WN257 on MDW → MCI (5 flights)
• WN257 on FLL → BWI (10 flights)

Related

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