Best time to fly Phoenix to Buffalo

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full PHX to BUF 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 46 64.4% 2.17% 51 min
February 52 80.4% 0% 64 min
March 38 68.4% 0% 50 min
April 40 82.5% 0% 55 min
May 45 82.2% 0% 67 min
June 30 66.7% 0% 72 min
July 35 57.1% 0% 39 min
August 55 74.1% 0% 37 min
September 55 85.5% 0% 27 min
October 69 65.2% 0% 51 min
November 62 77.4% 0% 55 min
December 64 71.4% 1.56% 50 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.