AA1999 MIA → SJU

American Airlines · Miami, FL to San Juan, PR · 51 flights observed, 2026-02-12 to 2026-04-06 · 1,045 mi

This flight has been on time less than half the time (47%) — expect a real chance of a delay.

AA1999 covers more than one route in the data window — the stats below are for MIA → SJU, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
47%
Median delay
+21 min
90th percentile
+111 min
Cancellation rate
0%

How often is AA1999 on time?

Across 51 flights on MIA → SJU from 2026-02-12 to 2026-04-06, AA1999 arrived within 15 minutes of schedule 47% of the time. The median arrival delay was +21 min, and the worst 10% of flights arrived +111 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2447%
16-30 min1020%
31-60 min612%
61-120 min612%
2+ hrs510%

Performance by month

MonthFlightsOn-timeAvg delay
2026-021527%+45 min
2026-033057%+24 min
2026-04650%+24 min

Performance by day of week

DayFlightsOn-time
Mon838%
Tue475%
Wed786%
Thu850%
Fri850%
Sat813%
Sun838%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…