Best time to fly Albany to Washington

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

Best month

April

81.3% on time · 110 flights

Worst month

March

56.8% on time · 88 flights

Month Flights On time Cancelled When late, by
January 87 63.5% 12.64% 114 min
February 80 60.6% 10% 78 min
March 88 56.8% 5.68% 125 min
April 110 81.3% 2.73% 77 min
May 117 76.7% 0.85% 79 min
June 110 65.3% 7.27% 125 min
July 111 69.7% 9.91% 180 min
August 113 60.7% 5.31% 80 min
September 84 67.5% 1.19% 64 min
October 113 74.3% 0% 67 min
November 84 67.9% 3.57% 50 min
December 86 64.2% 5.81% 163 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.