Best time to fly Colorado Springs to Phoenix

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

Best month

March

95.6% on time · 91 flights

Worst month

June

68.6% on time · 86 flights

Month Flights On time Cancelled When late, by
January 72 90.3% 0% 51 min
February 71 90% 1.41% 68 min
March 91 95.6% 0% 53 min
April 87 93.1% 0% 36 min
May 88 78.4% 0% 52 min
June 86 68.6% 0% 63 min
July 84 79.8% 0% 87 min
August 78 80.5% 0% 72 min
September 77 85.3% 0% 66 min
October 86 77.9% 0% 46 min
November 86 73.3% 0% 55 min
December 91 70.3% 0% 57 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.