Best time to fly Dallas to Long Beach

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

Best month

January

89.9% on time · 93 flights

Worst month

May

56.7% on time · 91 flights

Month Flights On time Cancelled When late, by
January 93 89.9% 4.3% 38 min
February 80 78.8% 0% 46 min
March 92 87% 0% 44 min
April 90 69.3% 2.22% 59 min
May 91 56.7% 1.1% 59 min
June 94 61.7% 0% 46 min
July 116 64% 1.72% 45 min
August 110 86.2% 0% 50 min
September 107 81.3% 0% 45 min
October 107 85% 0% 41 min
November 108 85.7% 2.78% 42 min
December 116 79.8% 0.86% 59 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.