Best time to fly Detroit to Greensboro/High Point

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

Best month

June

100% on time · 2 flights

Worst month

January

44.1% on time · 41 flights

Month Flights On time Cancelled When late, by
January 41 44.1% 17.07% 91 min
February 56 67.9% 0% 86 min
March 65 63.9% 6.15% 130 min
April 25 80% 0% 53 min
June 2 100% 0%
July 108 76% 3.7% 78 min
August 74 83.6% 1.35% 122 min
September 66 97% 0% 43 min
October 109 88.1% 0% 52 min
November 104 82.5% 0.96% 125 min
December 95 73.7% 0% 122 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.