Best time to fly New York to West Palm Beach/Palm Beach

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

Best month

November

82.9% on time · 424 flights

Worst month

August

63% on time · 310 flights

Month Flights On time Cancelled When late, by
January 405 65% 3.95% 64 min
February 402 66.1% 5.22% 74 min
March 463 73.1% 2.16% 75 min
April 432 79.5% 0.23% 62 min
May 313 80.3% 0.96% 65 min
June 307 69.4% 2.28% 78 min
July 310 66.9% 7.42% 87 min
August 310 63% 3.23% 73 min
September 296 77.6% 0.34% 52 min
October 329 80.1% 2.74% 51 min
November 424 82.9% 2.12% 78 min
December 444 63.7% 2.7% 76 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.