How often is WN4339 on time?

Across 23 flights on STL → MSP from 2026-03-05 to 2026-04-06, WN4339 arrived within 15 minutes of schedule 96% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +12 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

• WN4339 on LAS → TUL (16 flights)
• WN4339 on LAX → BWI (34 flights)
• WN4339 on MCI → RSW (10 flights)
• WN4339 on LAS → RNO (36 flights)
• WN4339 on CLE → LAS (28 flights)
• WN4339 on LGB → LAS (16 flights)
• WN4339 on RNO → AUS (8 flights)
• WN4339 on ALB → SRQ (3 flights)
• WN4339 on LAS → ALB (3 flights)
• WN4339 on DAL → ATL (5 flights)
• WN4339 on DAL → STL (1 flights)
• WN4339 on TPA → DAL (1 flights)
• WN4339 on DEN → OAK (1 flights)
• WN4339 on MCO → MSY (1 flights)
• WN4339 on RSW → MDW (27 flights)
• WN4339 on STL → SMF (58 flights)
• WN4339 on BHM → TPA (10 flights)

Related

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