How often is WN866 on time?

Across 33 flights on MDW → SLC from 2026-03-05 to 2026-04-06, WN866 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +14 min, and the worst 10% of flights arrived +53 min or later. 18% 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

• WN866 on ATL → DCA (7 flights)
• WN866 on BWI → AUS (16 flights)
• WN866 on AUS → DAL (4 flights)
• WN866 on DEN → ELP (4 flights)
• WN866 on SMF → BUR (57 flights)
• WN866 on BOI → SMF (24 flights)
• WN866 on HOU → SMF (8 flights)
• WN866 on SMF → ONT (1 flights)
• WN866 on IND → BWI (42 flights)
• WN866 on BWI → DEN (11 flights)
• WN866 on CHS → BWI (8 flights)
• WN866 on OAK → LAS (5 flights)
• WN866 on MDW → LAX (34 flights)
• WN866 on BNA → MDW (22 flights)
• WN866 on BUR → OAK (1 flights)
• WN866 on LGB → AUS (9 flights)
• WN866 on AUS → RDU (1 flights)
• WN866 on DEN → STL (8 flights)
• WN866 on ECP → STL (42 flights)
• WN866 on STL → LGB (32 flights)
• WN866 on LGB → OAK (32 flights)
• WN866 on HOU → ECP (24 flights)
• WN866 on BNA → BOS (24 flights)
• WN866 on SAN → SFO (10 flights)

Related

• All Southwest Airlines flights on MDW → SLC
• Compare airlines on MDW → SLC
• Southwest Airlines on the return, SLC → MDW