Best time to fly Washington to Greensboro/High Point

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

Best month

October

84.1% on time · 145 flights

Worst month

February

59.8% on time · 122 flights

Month Flights On time Cancelled When late, by
January 137 60% 12.41% 79 min
February 122 59.8% 8.2% 70 min
March 123 72.4% 4.07% 67 min
April 116 80.2% 0% 62 min
May 120 70.8% 5.83% 87 min
June 116 61.8% 5.17% 76 min
July 118 60.4% 9.32% 131 min
August 115 62% 6.09% 117 min
September 136 75.2% 2.21% 70 min
October 145 84.1% 0% 59 min
November 155 78% 3.23% 59 min
December 133 67.2% 1.5% 92 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.