Best time to fly Vitória to São Paulo

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

Best month

October

96% on time · 25 flights

Worst month

December

78.3% on time · 212 flights

Month Flights On time Cancelled When late, by
January 423 90.9% 3.78% 46 min
February 375 92.8% 3.2% 38 min
March 397 93.9% 1.51% 53 min
April 397 86.3% 2.52% 64 min
May 411 89.2% 0.73% 43 min
June 245 90.6% 0.41% 30 min
July 389 87.3% 0.51% 35 min
October 25 96% 0% 22 min
November 203 89.5% 1.48% 81 min
December 212 78.3% 4.25% 46 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.