Best time to fly Orlando to Raleigh/Durham

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

Best month

September

89.7% on time · 204 flights

Worst month

March

65.9% on time · 260 flights

Month Flights On time Cancelled When late, by
January 226 76.4% 7.96% 74 min
February 232 71.6% 0% 86 min
March 260 65.9% 4.23% 72 min
April 241 78.3% 0.41% 52 min
May 229 82.9% 0.44% 71 min
June 220 80.4% 0.45% 79 min
July 216 67.3% 2.78% 102 min
August 212 67.3% 0.47% 83 min
September 204 89.7% 0% 50 min
October 234 82.4% 0.43% 84 min
November 202 86.7% 2.97% 91 min
December 226 74.6% 0.88% 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.