Best time to fly Campinas to Porto Alegre

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

Best month

March

87% on time · 431 flights

Worst month

December

58.2% on time · 209 flights

Month Flights On time Cancelled When late, by
January 396 81.1% 4.04% 39 min
February 353 84% 2.83% 45 min
March 431 87% 0.23% 49 min
April 422 84.1% 1.42% 46 min
May 416 85.5% 0.24% 34 min
June 286 73.2% 2.1% 33 min
July 411 77.9% 1.95% 46 min
October 98 79.6% 0% 28 min
November 218 75.6% 0.46% 34 min
December 209 58.2% 0.48% 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.