Best time to fly Charlotte to Sacramento

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 31 88.9% 12.9% 26 min
February 28 85.7% 0% 129 min
March 31 83.9% 0% 61 min
April 30 80% 0% 51 min
May 31 87.1% 0% 31 min
June 30 72.4% 3.33% 142 min
July 58 43.1% 0% 72 min
August 61 66.1% 1.64% 70 min
September 60 93.3% 0% 73 min
October 36 86.1% 0% 28 min
November 29 79.3% 0% 65 min
December 31 83.9% 0% 39 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.