Best time to fly Savannah to Philadelphia

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

Best month

January

89.7% on time · 144 flights

Worst month

July

58.9% on time · 176 flights

Month Flights On time Cancelled When late, by
January 144 89.7% 12.5% 143 min
February 100 82.8% 6% 72 min
March 79 85.3% 5.06% 160 min
April 206 84.4% 0.49% 110 min
May 192 74.2% 2.6% 103 min
June 194 71.4% 2.58% 137 min
July 176 58.9% 3.98% 147 min
August 208 77.6% 5.77% 92 min
September 183 85.1% 0.55% 116 min
October 212 83.5% 0% 95 min
November 184 85.2% 0.54% 79 min
December 170 81.4% 1.76% 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.