Best time to fly Montego Bay to London

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full MBJ 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 46 76.2% 8.7% 0 min
February 41 79.5% 4.88% 0 min
March 30 75.9% 3.33% 0 min
April 30 80% 0% 0 min
May 34 84.8% 2.94% 0 min
June 18 83.3% 0% 0 min
July 19 77.8% 5.26% 0 min
August 18 77.8% 0% 0 min
September 17 68.8% 5.88% 0 min
October 18 66.7% 16.67% 0 min
November 18 37.5% 55.56% 0 min
December 9 77.8% 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.