D

Is Southwest Airlines on time Seattle to St. Louis?

103 flights · January 2025 – August 2026 · all airlines on SEA to STL →

64.71%

Arrived on time

Route average 80.18%

0%

Cancelled

Route average 0.23%

39 min

When late, late by

The other airlines on this route

Airline Flights On time Grade
Alaska Airlines 780 82.22% B

Month by month

Jul 2025 peak 85 Jun 2026
On-time arrival rate, %