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