Miami, FL → San Juan, PR flight delays
MIA → SJU · all airlines · 234 flights · April 2026 · source: US BTS
This route is delayed
27%of the time, by +66 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
73%
Delayed 3h+
1.3%
Cancelled
0.4%
Avg when late
+66m
Best & worst day to fly
Most on-time
Tuesday
delayed 13%
Worst
Sunday
delayed 41%
Which airline is most punctual on MIA → SJU?
Americandelayed 22%
Frontierdelayed 31%
Frequently asked
How often is the Miami, FL to San Juan, PR flight delayed?
About 27% of MIA → SJU flights arrive late (15+ minutes), by an average of 66 minutes when they do, based on 234 flights in April 2026.
Which airline is most punctual on MIA → SJU?
American, delayed 22% of the time — the best of the 2 airlines flying this route.
What is the best day to fly MIA → SJU?
Tuesday is the most on-time (delayed 13%), while Sunday is the worst (delayed 41%).
Airport overviews