Best time to fly Christiansted to Miami

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

Best month

February

88% on time · 85 flights

Worst month

August

55.7% on time · 91 flights

Month Flights On time Cancelled When late, by
January 99 81.3% 3.03% 208 min
February 85 88% 2.35% 64 min
March 93 72% 0% 143 min
April 117 80.3% 0% 58 min
May 124 82.3% 0% 64 min
June 120 75.8% 0% 126 min
July 123 72.4% 0% 67 min
August 91 55.7% 1.1% 97 min
September 61 81.4% 0% 180 min
October 80 72.2% 1.25% 174 min
November 109 84.4% 0% 40 min
December 116 79.3% 0% 165 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.