MIA → BOS American Airlines

American Airlines · Miami, FL to Boston, MA · 2,252 flights, 2025-07-01 to 2026-06-30 · aggregated across 34 flight numbers

This route is usually on time, but has a real long-delay tail — typical (median) delay is -3 min, while the worst 10% run +65 min or later.
On-time arrival
71%
Median delay
-3 min
90th percentile
+65 min
Cancellation rate
2%

How on-time is American Airlines from MIA to BOS?

Across every American Airlines flight number on MIA → BOS (2,252 flights, 2025-07-01 to 2026-06-30), 71% arrived within 15 minutes of schedule. Median arrival delay -3 min; the worst 10% ran +65 min or later. 2% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1,57871%
16-30 min1778%
31-60 min2089%
61-120 min1617%
2+ hrs864%

Performance by month

MonthFlightsOn-timeAvg delay
2025-0718063%+24 min
2025-0818566%+23 min
2025-0914864%+18 min
2025-1017865%+21 min
2025-1117178%+5 min
2025-1218677%+5 min
2026-0118878%+16 min
2026-0217277%+12 min
2026-0318764%+18 min
2026-0420174%+10 min
2026-0521277%+5 min
2026-0620273%+11 min

Performance by day of week

DayFlightsOn-time
Mon30969%
Tue31671%
Wed31573%
Thu32072%
Fri32271%
Sat31578%
Sun31366%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…