Best time to fly London to Spata-Artemida

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

Best month

March

87.2% on time · 451 flights

Worst month

July

54.1% on time · 296 flights

Month Flights On time Cancelled When late, by
January 416 81.6% 0.72% 0 min
February 382 85.8% 0.79% 0 min
March 451 87.2% 1.55% 0 min
April 555 82.3% 2.34% 0 min
May 573 71.1% 0.52% 0 min
June 554 63.9% 0.36% 0 min
July 296 54.1% 0.68% 0 min
August 296 69.8% 0.34% 0 min
September 275 54.4% 0.36% 0 min
October 264 76.1% 0% 0 min
November 218 82.6% 0% 0 min
December 222 78.7% 0.45% 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.