Best time to fly Charlotte to San Diego

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

Best month

November

86.3% on time · 98 flights

Worst month

June

70% on time · 120 flights

Month Flights On time Cancelled When late, by
January 98 75.9% 10.2% 44 min
February 109 79.4% 0.92% 60 min
March 137 86.1% 0% 108 min
April 123 73.8% 0% 51 min
May 124 79% 0% 40 min
June 120 70% 0% 60 min
July 152 70.9% 0.66% 62 min
August 111 77.5% 0% 60 min
September 119 83.1% 0% 55 min
October 131 80.2% 0% 42 min
November 98 86.3% 2.04% 40 min
December 105 79.6% 0% 52 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.