Best time to fly Marrakesh to London

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

Best month

November

88.8% on time · 170 flights

Worst month

July

67.2% on time · 119 flights

Month Flights On time Cancelled When late, by
January 274 79.9% 0.36% 0 min
February 303 81.5% 0% 0 min
March 355 86.2% 0% 0 min
April 288 82.9% 0.35% 0 min
May 275 82.5% 0.36% 0 min
June 253 70.1% 0.79% 0 min
July 119 67.2% 0% 0 min
August 129 78.7% 1.55% 0 min
September 150 72.7% 0% 0 min
October 160 77.5% 0% 0 min
November 170 88.8% 0% 0 min
December 162 79.6% 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.