Best time to fly Sanford to Allentown/Bethlehem/Easton

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

Best month

September

90.4% on time · 73 flights

Worst month

June

61.7% on time · 116 flights

Month Flights On time Cancelled When late, by
January 102 83.8% 1.96% 142 min
February 108 78.5% 0.93% 99 min
March 126 78.6% 0% 55 min
April 107 85% 0% 71 min
May 99 77.8% 0% 54 min
June 116 61.7% 0.86% 94 min
July 115 70.2% 0.87% 61 min
August 106 73.3% 0.94% 80 min
September 73 90.4% 0% 42 min
October 123 81.4% 4.07% 45 min
November 123 82.1% 0% 47 min
December 119 77.1% 0% 107 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.