Best time to fly Miami to Los Angeles

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

Best month

October

81% on time · 269 flights

Worst month

July

64.5% on time · 277 flights

Month Flights On time Cancelled When late, by
January 299 73.7% 3.34% 104 min
February 237 72.5% 0% 73 min
March 276 79.6% 1.45% 64 min
April 285 74.7% 0% 63 min
May 304 76.7% 0.66% 53 min
June 268 76.5% 0% 56 min
July 277 64.5% 0.36% 92 min
August 252 74.2% 0% 58 min
September 212 75.9% 0% 105 min
October 269 81% 0% 48 min
November 280 77.6% 0.71% 49 min
December 286 75.1% 0% 52 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.