Best time to fly Leeds to Belfast

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

Best month

February

87.6% on time · 328 flights

Worst month

August

61.6% on time · 199 flights

Month Flights On time Cancelled When late, by
January 388 78.4% 9.28% 0 min
February 328 87.6% 1.52% 0 min
March 367 85.8% 3.81% 0 min
April 452 79.1% 1.77% 0 min
May 458 84% 0.44% 0 min
June 438 74.1% 2.97% 0 min
July 207 62.1% 1.93% 0 min
August 199 61.6% 7.04% 0 min
September 179 74.9% 2.23% 0 min
October 169 74.2% 8.28% 0 min
November 159 84.7% 5.66% 0 min
December 173 68.6% 11.56% 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.