Best time to fly São Paulo to Fortaleza

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

Best month

October

100% on time · 16 flights

Worst month

December

62.8% on time · 213 flights

Month Flights On time Cancelled When late, by
January 468 87.3% 0.43% 34 min
February 342 87.1% 0.29% 30 min
March 308 89.5% 0.65% 33 min
April 324 87.6% 0.62% 33 min
May 333 90.1% 0% 39 min
June 213 84% 0.47% 43 min
July 398 82.6% 1.76% 29 min
October 16 100% 0%
November 117 90.6% 0% 31 min
December 213 62.8% 6.57% 41 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.