Best time to fly Phoenix to Los Angeles

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

Best month

February

87.1% on time · 1,183 flights

Worst month

July

79.6% on time · 1,234 flights

Month Flights On time Cancelled When late, by
January 1,251 86.6% 0.48% 74 min
February 1,183 87.1% 0.34% 56 min
March 1,364 83.9% 0.29% 55 min
April 1,318 85.5% 0% 61 min
May 1,310 84.1% 0% 52 min
June 1,198 80.8% 0.25% 56 min
July 1,234 79.6% 0.57% 75 min
August 1,267 82.6% 0.16% 73 min
September 1,224 86.8% 0.41% 56 min
October 1,364 84.2% 0.07% 52 min
November 1,327 85% 1.81% 51 min
December 1,326 83.7% 0.23% 54 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.