Best time to fly Budapest to London

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

Best month

February

90.4% on time · 104 flights

Worst month

January

67.4% on time · 89 flights

Month Flights On time Cancelled When late, by
January 89 67.4% 0% 0 min
February 104 90.4% 0% 0 min
March 115 90.4% 0% 0 min
April 120 84.2% 0% 0 min
May 124 76.6% 0% 0 min
June 235 72.3% 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.