Best time to fly Miami to Greensboro/High Point

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

Best month

February

92.4% on time · 67 flights

Worst month

July

72.6% on time · 62 flights

Month Flights On time Cancelled When late, by
January 98 82.8% 5.1% 35 min
February 67 92.4% 1.49% 99 min
March 84 75% 0% 59 min
April 93 83.9% 0% 40 min
May 78 78.2% 0% 43 min
June 81 80% 0% 59 min
July 62 72.6% 0% 47 min
August 62 77.4% 0% 87 min
September 60 73.3% 0% 56 min
October 65 89.1% 1.54% 48 min
November 89 85.5% 6.74% 84 min
December 96 83.3% 0% 34 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.