Best time to fly Washington to Norfolk

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

Best month

November

75.8% on time · 222 flights

Worst month

February

57.1% on time · 178 flights

Month Flights On time Cancelled When late, by
January 204 62.4% 10.78% 86 min
February 178 57.1% 8.43% 77 min
March 186 70.9% 5.91% 81 min
April 179 70.5% 1.68% 83 min
May 184 67.8% 2.17% 70 min
June 185 61.2% 10.27% 75 min
July 177 64.8% 6.78% 94 min
August 192 71.7% 4.17% 77 min
September 204 74.9% 1.96% 60 min
October 209 72.2% 0% 46 min
November 222 75.8% 1.35% 55 min
December 199 66.3% 3.02% 67 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.