Best time to fly Las Vegas to Atlanta

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

Best month

February

89.4% on time · 341 flights

Worst month

July

76.9% on time · 416 flights

Month Flights On time Cancelled When late, by
January 384 86.3% 2.86% 69 min
February 341 89.4% 0.29% 52 min
March 407 80.2% 1.97% 67 min
April 422 88.6% 0.24% 88 min
May 407 82% 0.25% 78 min
June 388 85.2% 0.26% 58 min
July 416 76.9% 1.2% 72 min
August 405 86.5% 1.48% 74 min
September 389 88.4% 0% 87 min
October 413 85.7% 0.24% 57 min
November 390 85% 0.51% 72 min
December 429 88.9% 1.17% 95 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.