How often is WN439 on time?

Across 5 flights on STL → MCI from 2025-11-22 to 2026-01-03, WN439 arrived within 15 minutes of schedule 40% of the time. The median arrival delay was +25 min, and the worst 10% of flights arrived +74 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

• WN439 on BHM → LAS (19 flights)
• WN439 on LAS → SJC (20 flights)
• WN439 on DEN → LAS (4 flights)
• WN439 on OAK → SNA (18 flights)
• WN439 on TPA → PIT (8 flights)
• WN439 on PHX → PDX (33 flights)
• WN439 on OMA → PHX (5 flights)
• WN439 on RSW → BNA (44 flights)
• WN439 on MDW → DCA (6 flights)
• WN439 on MSY → AUS (56 flights)
• WN439 on AUS → MSP (13 flights)
• WN439 on MCI → MSY (18 flights)
• WN439 on MCO → PHL (5 flights)
• WN439 on PHL → STL (5 flights)
• WN439 on FLL → MSY (4 flights)
• WN439 on MCO → DAL (1 flights)
• WN439 on CVG → BWI (31 flights)
• WN439 on ATL → PHX (50 flights)
• WN439 on STL → ATL (18 flights)
• WN439 on PHX → HOU (8 flights)
• WN439 on DAL → PDX (1 flights)
• WN439 on DAL → LBB (15 flights)
• WN439 on LBB → LAS (5 flights)

Related

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