Best time to fly Orlando to London

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

Best month

February

83.9% on time · 56 flights

Worst month

December

45.2% on time · 31 flights

Month Flights On time Cancelled When late, by
January 62 70% 3.23% 0 min
February 56 83.9% 0% 0 min
March 66 69.2% 1.52% 0 min
April 120 75% 0% 0 min
May 124 71.3% 1.61% 0 min
June 109 70.9% 5.5% 0 min
July 62 53.2% 0% 0 min
August 62 55.7% 1.61% 0 min
September 58 81% 0% 0 min
October 57 77.2% 0% 0 min
November 30 83.3% 0% 0 min
December 31 45.2% 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.