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Is Southwest Airlines on time St. Louis to Chicago?

1,704 flights · January 2025 – August 2026 · all airlines on STL to MDW →

79.73%

Arrived on time

Route average 79.73%

1.12%

Cancelled

Route average 1.12%

55 min

When late, late by

Month by month

Jul 2025 peak 90 Jun 2026
On-time arrival rate, %