Best time to fly Birmingham to Barcelona

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

Best month

November

81.8% on time · 55 flights

Worst month

July

41% on time · 84 flights

Month Flights On time Cancelled When late, by
January 106 67.9% 0% 0 min
February 126 73.8% 0% 0 min
March 156 66.5% 0.64% 0 min
April 162 68.5% 0% 0 min
May 181 62.4% 0% 0 min
June 186 60% 0.54% 0 min
July 84 41% 1.19% 0 min
August 84 56.6% 1.19% 0 min
September 81 55.6% 0% 0 min
October 79 62% 0% 0 min
November 55 81.8% 0% 0 min
December 50 68% 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.