Best time to fly Fortaleza to São Paulo

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

Best month

February

88.3% on time · 324 flights

Worst month

December

78% on time · 374 flights

Month Flights On time Cancelled When late, by
January 382 79.5% 1.57% 43 min
February 324 88.3% 2.47% 49 min
March 322 87.4% 1.24% 41 min
April 597 79.4% 2.35% 43 min
May 641 87.6% 1.87% 67 min
June 389 85.6% 1.54% 38 min
July 334 80.5% 1.8% 38 min
October 32 87.1% 3.13% 37 min
November 328 81% 0.3% 36 min
December 374 78% 1.6% 49 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.