Best time to fly Charlotte to Miami

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

Best month

March

83.8% on time · 321 flights

Worst month

July

62% on time · 308 flights

Month Flights On time Cancelled When late, by
January 331 77.6% 7.85% 105 min
February 287 83.7% 3.14% 56 min
March 321 83.8% 3.43% 135 min
April 308 80.3% 0.97% 94 min
May 296 72.9% 0.34% 71 min
June 298 74.7% 1.01% 116 min
July 308 62% 2.6% 65 min
August 291 64.2% 1.03% 82 min
September 277 82.7% 0.72% 79 min
October 305 77% 0.33% 74 min
November 343 76% 0.58% 69 min
December 355 75.9% 0.56% 58 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.