Best time to fly Las Vegas to Miami

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

Best month

April

88.1% on time · 255 flights

Worst month

July

63.2% on time · 285 flights

Month Flights On time Cancelled When late, by
January 262 82.8% 2.29% 150 min
February 223 86.4% 0.45% 94 min
March 247 75.7% 1.21% 76 min
April 255 88.1% 0% 77 min
May 287 84.5% 1.05% 78 min
June 256 74.8% 0.78% 125 min
July 285 63.2% 2.11% 91 min
August 275 76.2% 1.45% 81 min
September 231 85% 0.43% 63 min
October 277 88% 0.36% 52 min
November 268 86.9% 0% 75 min
December 283 87.6% 0% 70 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.