How reliable is San Jose Airport?
Month-by-month weather risk and connection guidance for San Jose Airport. We don’t yet have on-time performance history here — see why below.
On-time performance data isn’t available for SJI yet
Our historical on-time and cancellation record currently covers the US, UK, Brazil, and Australia, so we don’t score departure reliability at San Jose Airport yet. We’ll show weather and connection context here once enough global coverage is available.
Weather by month
Weather history isn’t available for SJI yet
PlaneSane shows month-by-month airport weather once enough historical METAR/IEM observations are loaded for the airport. This does not mean the airport has no weather data forever; it means the current climatology table has no monthly coverage for San Jose Airport.
The read on SJI
What the numbers say about flying through San Jose Airport
PlaneSane doesn't yet have on-time and cancellation history for San Jose Airport, so it isn't scored for departure reliability here — that record currently covers the US, UK, Brazil, and Australia. The weather and connection context below comes from separate global sources and still applies.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to San Jose, read how we weigh it all in how the Peace of Mind Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Peace of Mind
Where to stay in San Jose
Hotels scored on cleanliness, location, price fairness, and trust — not just stars.
Reliability guides
Planning a trip through San Jose?
Score real flights to and from SJI on reliability, weather, and connection safety — not just price.
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