Best time to fly Natal to São Paulo

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

Best month

March

85.7% on time · 428 flights

Worst month

October

66.7% on time · 22 flights

Month Flights On time Cancelled When late, by
January 484 81.6% 2.27% 49 min
February 405 84.7% 2.96% 42 min
March 428 85.7% 0.47% 45 min
April 374 73.7% 0.53% 40 min
May 383 81.5% 1.04% 36 min
June 223 73.8% 0.9% 42 min
July 420 75.5% 0.71% 38 min
October 22 66.7% 4.55% 28 min
November 200 83.7% 2% 36 min
December 227 77.9% 2.2% 53 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.