Best time to fly Sanford to Cedar Rapids/Iowa City

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 28 75% 0% 73 min
February 30 76.7% 0% 54 min
March 36 91.7% 0% 172 min
April 16 93.8% 0% 131 min
May 23 87% 0% 89 min
June 34 79.4% 0% 123 min
July 31 70% 3.23% 80 min
August 22 86.4% 0% 106 min
September 18 100% 0%
October 22 85.7% 4.55% 31 min
November 22 76.2% 0% 77 min
December 34 73.5% 0% 60 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.