How reliable is Altamira Interstate Airport?
Flights from ATM avoided significant airline-controlled delay in 89% of 2,415 flights in official ANAC history — and weather is calmest in Sep. 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 ATM looks like
Avoided 15+ min controlled delay
across 2,415 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 Altamira
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 · 100/100 favorability
Roughest month
Most disruptive — low visibility & fog, thunderstorms · 98/100 favorability
The read on ATM
What the numbers say about flying through Altamira Interstate Airport
Across official performance history, flights from Altamira avoided significant airline-controlled delay about 89% of the time over 2,415 flights. That's one of the more dependable operational records you'll see. Pair it with an elevated cancellation rate of 2.6% — worth weighing alongside the on-time figure. When a departure does run late, the typical delay is around 2 minutes.
On weather, Altamira is an unusually calm-weather airport year-round. September is the calmest stretch for flying, scoring 100 out of 100 for favorable conditions, while April is the most disruptive at 98, driven mainly by low visibility & fog and thunderstorms. 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 Altamira, 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 ATM
- How reliable is Altamira Interstate Airport (ATM)?
- Flights from Altamira avoided significant airline-controlled delay roughly 89% of the time across 2,415 flights of official history — one of the more dependable operational records you'll see. The cancellation rate runs about 2.6%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from ATM for good weather?
- September has the calmest flying weather at Altamira Interstate Airport. April is the most disruptive, mainly from low visibility & fog and thunderstorms.
Planning a trip through Altamira?
Score real flights to and from ATM on reliability, weather, and connection safety — not just price.