D

Is Southwest Airlines on time St. Louis to Boston?

934 flights · January 2025 – August 2026 · all airlines on STL to BOS →

66.27%

Arrived on time

Route average 70.3%

0.96%

Cancelled

Route average 1.49%

58 min

When late, late by

The other airlines on this route

Airline Flights On time Grade
Envoy Air 418 75.91% C
Republic Airways 258 76% D

Month by month

Jul 2025 peak 86 Jun 2026
On-time arrival rate, %