How often is WN1143 on time?

Across 58 flights on CMH → STL from 2026-01-06 to 2026-03-04, WN1143 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +5 min or later. 2% 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

• WN1143 on LAS → RNO (7 flights)
• WN1143 on BWI → BDL (16 flights)
• WN1143 on CHS → BWI (12 flights)
• WN1143 on TPA → BWI (4 flights)
• WN1143 on BWI → GSP (57 flights)
• WN1143 on BNA → SAT (33 flights)
• WN1143 on FLL → MCI (46 flights)
• WN1143 on DCA → MCO (18 flights)
• WN1143 on STL → CMH (1 flights)
• WN1143 on CMH → DAL (14 flights)
• WN1143 on DAL → SMF (13 flights)
• WN1143 on SMF → GEG (21 flights)
• WN1143 on DCA → CMH (4 flights)
• WN1143 on MDW → LGA (50 flights)
• WN1143 on BNA → MDW (24 flights)
• WN1143 on BNA → LGA (25 flights)

Related

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