D
Is Delta Air Lines on time Miami to Boston?
888 flights · January 2025 – August 2026 · all airlines on MIA to BOS →
70%
Arrived on time
Route average 69.67%
2.93%
Cancelled
Route average 2.4%
78 min
When late, late by
The other airlines on this route
| Airline | Flights | On time | Grade |
|---|---|---|---|
| American Airlines | 2,230 | 70.75% | D |
| Spirit Airlines | 186 | 54.34% | F |
| JetBlue Airways | 89 | 66.67% | — |
| Republic Airways | 21 | 80.95% | — |
| Envoy Air | 1 | 100% | — |
Month by month
Jul 2025
peak 79
Jun 2026