Best time to fly New York to Fort Lauderdale

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

Best month

September

80.5% on time · 650 flights

Worst month

July

63.7% on time · 681 flights

Month Flights On time Cancelled When late, by
January 848 75% 4.13% 64 min
February 763 74.8% 5.37% 71 min
March 859 70% 6.75% 79 min
April 803 73.5% 1% 68 min
May 667 71.2% 1.2% 75 min
June 623 69.1% 3.21% 74 min
July 681 63.7% 5.58% 107 min
August 700 67.7% 3.71% 104 min
September 650 80.5% 0.15% 66 min
October 684 77.1% 0.58% 59 min
November 736 78.9% 2.58% 81 min
December 878 66.4% 3.08% 67 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.