Best time to fly Houston to Los Angeles

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

Best month

January

90.3% on time · 93 flights

Worst month

June

53.2% on time · 109 flights

Month Flights On time Cancelled When late, by
January 93 90.3% 0% 30 min
February 83 83.1% 0% 41 min
March 89 82% 0% 68 min
April 89 62.9% 0% 40 min
May 93 53.8% 0% 48 min
June 109 53.2% 0% 43 min
July 115 73.9% 0% 62 min
August 101 85.1% 0% 28 min
September 99 82.8% 0% 44 min
October 109 71.6% 0% 39 min
November 106 82.1% 0% 43 min
December 108 81.3% 0.93% 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.