SJU (San Juan) to JAX (Jacksonville) flights arrive on time 78% of the time. The most reliable airline on this route is JetBlue Airways at 83%. The average delay is 76 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated August 2026.SJU → JAX
SJU (San Juan) to JAX (Jacksonville)
SJU → JAX on-time performance by month
24
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JanFebMarAprMayJunJulAugSepOctNovDec
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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?
JetBlue Airways edges out Frontier Airlines on this route — 83% vs 75% on time.
Airline Comparison
JetBlue Airways leads at 83% on time; Frontier Airlines trails at 75%.
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 ~28 min. Best time: 4 AM (about 8 min).
Arriving at JAX
79% on timeWhen flights into JAX are late, the average delay is 74 minutes. Build buffer if you have ground plans.
If connecting at JAX: TSA is ~24 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what JetBlue Airways owes you — refund rights, action plan, complaint email. Free.
Flying out of SJU? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated August 2026. Source: Bureau of Transportation Statistics.