Best time to fly Zaventem to Manchester

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

Best month

May

85.3% on time · 102 flights

Worst month

September

56.9% on time · 52 flights

Month Flights On time Cancelled When late, by
January 106 66.3% 1.89% 0 min
February 104 69.6% 1.92% 0 min
March 108 85.2% 0% 0 min
April 102 84% 1.96% 0 min
May 102 85.3% 0% 0 min
June 102 76.8% 2.94% 0 min
July 54 70.4% 0% 0 min
August 52 76.9% 0% 0 min
September 52 56.9% 1.92% 0 min
October 53 63.5% 1.89% 0 min
November 52 58% 3.85% 0 min
December 57 61.4% 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.