How often is WN1678 on time?

Across 37 flights on STL → DEN from 2025-11-02 to 2026-01-05, WN1678 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +14 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

• WN1678 on BNA → PBI (7 flights)
• WN1678 on LAS → MSY (4 flights)
• WN1678 on HNL → KOA (58 flights)
• WN1678 on MDW → SDF (33 flights)
• WN1678 on OAK → SNA (42 flights)
• WN1678 on DTW → DEN (11 flights)
• WN1678 on LAS → HOU (18 flights)
• WN1678 on BWI → ATL (1 flights)
• WN1678 on PDX → OAK (23 flights)
• WN1678 on OAK → LAX (25 flights)
• WN1678 on BWI → CMH (58 flights)
• WN1678 on CHS → STL (35 flights)
• WN1678 on BWI → CHS (5 flights)

Related

• All Southwest Airlines flights on STL → DEN
• Compare airlines on STL → DEN
• Southwest Airlines on the return, DEN → STL