How often is WN4120 on time?

Across 16 flights on MDW → LGA from 2026-06-04 to 2026-06-29, WN4120 arrived within 15 minutes of schedule 29% of the time. The median arrival delay was +36 min, and the worst 10% of flights arrived +103 min or later. 6% 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

• WN4120 on RSW → MDW (23 flights)
• WN4120 on PHX → SAN (1 flights)
• WN4120 on OMA → DCA (28 flights)
• WN4120 on DAL → OMA (5 flights)
• WN4120 on PHX → DAL (5 flights)
• WN4120 on LAS → GEG (3 flights)
• WN4120 on BWI → MCO (5 flights)
• WN4120 on PHX → SAT (1 flights)
• WN4120 on SAT → HOU (1 flights)
• WN4120 on STL → MCO (1 flights)
• WN4120 on BWI → MIA (1 flights)
• WN4120 on PDX → DEN (31 flights)
• WN4120 on STL → LGB (18 flights)
• WN4120 on MCI → PHX (31 flights)
• WN4120 on DEN → OMA (14 flights)
• WN4120 on TPA → MHT (5 flights)

Related

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