How often is WN3257 on time?

Across 12 flights on COS → LAS from 2026-06-04 to 2026-06-29, WN3257 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +52 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

• WN3257 on DAL → COS (16 flights)
• WN3257 on MDW → DAL (58 flights)
• WN3257 on DAL → AUS (25 flights)
• WN3257 on AUS → HRL (5 flights)
• WN3257 on BOI → PHX (8 flights)
• WN3257 on PHX → ABQ (28 flights)
• WN3257 on DTW → BNA (19 flights)
• WN3257 on LAS → DTW (14 flights)
• WN3257 on LAS → PIT (63 flights)
• WN3257 on ECP → DAL (1 flights)
• WN3257 on MDW → RSW (17 flights)
• WN3257 on LAS → IND (13 flights)
• WN3257 on PHX → LAX (58 flights)
• WN3257 on MKE → PHX (18 flights)
• WN3257 on LAX → BNA (7 flights)
• WN3257 on BNA → LAS (15 flights)
• WN3257 on RDU → BNA (14 flights)

Related

• All Southwest Airlines flights on COS → LAS
• Compare airlines on COS → LAS
• Southwest Airlines on the return, LAS → COS