Best time to fly Houston to Greer

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full HOU to GSP 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 11 80% 9.09% 26 min
February 20 75% 0% 27 min
March 7 100% 0%
April 24 83.3% 0% 97 min
May 31 93.5% 0% 41 min
June 30 63.3% 0% 50 min
July 39 59% 0% 69 min
August 35 85.7% 0% 19 min
September 35 94.3% 0% 65 min
October 39 87.2% 0% 31 min
November 32 93.5% 3.13% 69 min
December 34 79.4% 0% 47 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.