Best time to fly Juiz de Fora to São Paulo

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full IZA to CGH record →

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 71 90% 1.41% 32 min
February 65 85.2% 6.15% 116 min
March 57 90.7% 5.26% 152 min
April 43 83.7% 0% 44 min
May 41 97.6% 0% 18 min
June 37 89.2% 0% 21 min
July 54 87% 0% 48 min
October 4 100% 0%
November 25 96% 0% 69 min
December 27 80.8% 3.7% 36 min

What a seasonal pattern can and cannot tell you

Months differ for reasons that repeat — summer thunderstorms in the American interior, winter fog and de-icing in northern Europe, school holidays filling every seat and leaving no slack in the schedule. Those are real and they come back each year.

What the pattern cannot do is forecast a particular flight. A quiet month has late days and a bad month has punctual ones. Treat this as a way to choose between two dates you are indifferent about, not as a promise.