Best time to fly Dublin to Liverpool

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

Best month

March

93.9% on time · 164 flights

Worst month

June

78.5% on time · 427 flights

Month Flights On time Cancelled When late, by
January 161 78.6% 4.35% 0 min
February 150 83.9% 0.67% 0 min
March 164 93.9% 0% 0 min
April 224 89.7% 0% 0 min
May 239 90.8% 0% 0 min
June 427 78.5% 0.94% 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.