Best time to fly Balice to London

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full KRK to LHR 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 19 61.1% 5.26% 0 min
February 26 92.3% 0% 0 min
March 33 96.9% 3.03% 0 min
April 55 89.1% 0% 0 min
May 56 83.9% 0% 0 min
June 45 72.7% 2.22% 0 min
July 22 81% 4.55% 0 min
August 23 78.3% 0% 0 min
September 22 72.7% 0% 0 min
October 27 88.9% 0% 0 min
November 14 85.7% 0% 0 min
December 16 56.3% 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.