Best time to fly Saint Peter Port to St. Peter

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

Best month

October

86.4% on time · 88 flights

Worst month

September

54.9% on time · 82 flights

Month Flights On time Cancelled When late, by
January 148 65.2% 6.76% 0 min
February 111 69.4% 2.7% 0 min
March 139 80.9% 2.16% 0 min
April 143 74.8% 0% 0 min
May 157 67.3% 2.55% 0 min
June 154 63.3% 4.55% 0 min
July 90 64% 1.11% 0 min
August 88 78.4% 0% 0 min
September 82 54.9% 0% 0 min
October 88 86.4% 0% 0 min
November 104 71.1% 6.73% 0 min
December 129 70.2% 6.2% 0 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.