Best time to fly Washington to Baton Rouge

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

Best month

April

81.1% on time · 55 flights

Worst month

July

36.6% on time · 53 flights

Month Flights On time Cancelled When late, by
January 49 70.7% 16.33% 59 min
February 50 53.3% 10% 123 min
March 53 69.6% 13.21% 204 min
April 55 81.1% 3.64% 157 min
May 55 66.7% 7.27% 76 min
June 52 65.9% 21.15% 84 min
July 53 36.6% 22.64% 95 min
August 52 68% 3.85% 75 min
September 52 74% 3.85% 72 min
October 54 75.5% 0% 69 min
November 48 66% 2.08% 70 min
December 30 56.7% 0% 108 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.