Best time to fly São Paulo to Florianópolis

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

Best month

October

95.5% on time · 24 flights

Worst month

December

58% on time · 289 flights

Month Flights On time Cancelled When late, by
January 304 67.5% 0.66% 39 min
February 239 73.8% 0.84% 44 min
March 273 79.1% 0% 40 min
April 525 69.5% 1.33% 42 min
May 553 77.4% 1.45% 36 min
June 340 76.3% 2.06% 35 min
July 250 67.1% 0.4% 35 min
October 24 95.5% 8.33% 37 min
November 272 75.6% 0.37% 36 min
December 289 58% 2.08% 51 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.