HOU (Houston) to SJU (San Juan) flights arrive on time 63% of the time. The most reliable airline on this route is Southwest Airlines at 63%. The average delay is 48 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated August 2026.HOU → SJU
HOU (Houston) to SJU (San Juan)
HOU → SJU on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is frequently delayed. About 63% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Accurate?
Good to know
Departing from HOU
80% on timeTSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at SJU
76% on timeWhen flights into SJU are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at SJU: TSA is ~8 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
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Data last updated August 2026. Source: Bureau of Transportation Statistics.