SJU (San Juan) to MIA (Miami) flights arrive on time 78% of the time. The most reliable airline on this route is null at 85%. The average delay is 95 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated August 2026.SJU → MIA
SJU (San Juan) to MIA (Miami)
SJU → MIA on-time performance by month
24
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26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is on time most of the time. About 78% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
null edges out Frontier Airlines on this route — 85% vs 76% on time.
Airline Comparison
leads at 85% on time; Frontier Airlines trails at 76%.
Accurate?
Good to know
Departing from SJU
76% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. SJU has long runway queues.
TSA is currently ~13 min. Best time: 4 AM (about 8 min).
Arriving at MIA
76% on timeWhen flights into MIA are late, the average delay is 77 minutes. Build buffer if you have ground plans.
If connecting at MIA: TSA is ~16 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
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Flying out of SJU? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
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Data last updated August 2026. Source: Bureau of Transportation Statistics.