Best time to fly Phoenix to Oakland

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

Best month

January

87% on time · 308 flights

Worst month

June

67.1% on time · 347 flights

Month Flights On time Cancelled When late, by
January 308 87% 0% 48 min
February 292 86.9% 0.34% 41 min
March 375 79.4% 0.27% 46 min
April 355 75.7% 0.28% 50 min
May 366 69.7% 0% 47 min
June 347 67.1% 0.29% 41 min
July 353 70.7% 0.28% 58 min
August 310 82.8% 0.32% 48 min
September 296 83.8% 0% 67 min
October 340 79.7% 0% 37 min
November 324 85.6% 1.23% 56 min
December 339 77.3% 0% 53 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.