Best time to fly Liverpool to Shannon

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full LPL to SNN 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 20 61.1% 10% 0 min
February 17 94.1% 0% 0 min
March 18 88.9% 0% 0 min
April 21 71.4% 0% 0 min
May 23 82.6% 0% 0 min
June 21 85.7% 0% 0 min
July 13 100% 0%
August 13 84.6% 0% 0 min
September 14 92.9% 0% 0 min
October 13 100% 0%
November 9 77.8% 0% 0 min
December 11 100% 0%

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.