How reliable is Professor Urbano Ernesto Stumpf Airport?
Flights from SJK avoided significant airline-controlled delay in 97% of 450 flights in official ANAC history — and weather is calmest in Aug. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the airline-controlled delay record at SJK looks like
Avoided 15+ min controlled delay
across 450 flights
Source: ANAC VRA · data through 2026-06-25. Origin-grouped, cause-attributed operational history; it is not a direct departure-punctuality measure or a guarantee for any flight.
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Weather by month
When the weather works for you at São José Dos Campos
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 94/100 favorability
Roughest month
Most disruptive — thunderstorms, low visibility & fog · 89/100 favorability
The read on SJK
What the numbers say about flying through Professor Urbano Ernesto Stumpf Airport
Across official performance history, flights from São José Dos Campos avoided significant airline-controlled delay about 97% of the time over 450 flights. That's one of the more dependable operational records you'll see. Pair it with a low cancellation rate of 0.9%, so flights here rarely vanish outright. When a departure does run late, the typical delay is around -12 minutes.
On weather, São José Dos Campos is an unusually calm-weather airport year-round. August is the calmest stretch for flying, scoring 94 out of 100 for favorable conditions, while January is the most disruptive at 89, driven mainly by thunderstorms and low visibility & fog. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to São José Dos Campos, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about SJK
- How reliable is Professor Urbano Ernesto Stumpf Airport (SJK)?
- Flights from São José Dos Campos avoided significant airline-controlled delay roughly 97% of the time across 450 flights of official history — one of the more dependable operational records you'll see. The cancellation rate runs about 0.9%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from SJK for good weather?
- August has the calmest flying weather at Professor Urbano Ernesto Stumpf Airport. January is the most disruptive, mainly from thunderstorms and low visibility & fog.
Planning a trip through São José Dos Campos?
Score real flights to and from SJK on reliability, weather, and connection safety — not just price.