How often are MIA to SJU flights on time?

Flights from Miami (MIA) to San Juan (SJU) arrive on time 82% of the time across 16,141 flights of official data.

Which airline is most reliable on the MIA to SJU route?

American Airlines has the best on-time record on this route at 82% across 12,289 flights.

Route reliability

Flights from Miami to San Juan arrive on time 82% of the time across 16,141 flights. Here’s how each airline really performs.

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On-time rate

16,141 flights

On-time = arrived within 15 minutes of schedule, per BTS TranStats. Compare the reverse leg SJU → MIA.

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Do Morning Flights Really Have Fewer Delays?

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Are Some Airlines Really More Reliable Than Others?

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Score real MIA–SJU flights on reliability, weather, and connection safety — not just price.