Best time to fly London to Perugia (PG)

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full STN to PEG 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 22 77.3% 0% 0 min
February 25 88% 0% 0 min
March 35 88.6% 0% 0 min
April 63 81% 0% 0 min
May 67 70.1% 0% 0 min
June 64 62.5% 0% 0 min
July 31 51.6% 0% 0 min
August 31 74.2% 0% 0 min
September 30 55.2% 3.33% 0 min
October 29 64.3% 3.45% 0 min
November 13 92.3% 0% 0 min
December 14 85.7% 0% 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.