Best time to fly Kirkwall to Ingliston

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

Best month

April

94.2% on time · 104 flights

Worst month

January

57.1% on time · 80 flights

Month Flights On time Cancelled When late, by
January 80 57.1% 12.5% 0 min
February 76 82.7% 1.32% 0 min
March 101 87.1% 0% 0 min
April 104 94.2% 0.96% 0 min
May 104 87.5% 0% 0 min
June 103 61% 2.91% 0 min
July 64 74.2% 3.13% 0 min
August 52 68% 3.85% 0 min
September 52 80.8% 0% 0 min
October 55 82.7% 5.45% 0 min
November 55 74.5% 7.27% 0 min
December 55 84.9% 3.64% 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.