Best time to fly Bristol to Ingliston

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

Best month

April

87.2% on time · 468 flights

Worst month

September

63.9% on time · 232 flights

Month Flights On time Cancelled When late, by
January 447 83.3% 2.01% 0 min
February 503 84.9% 0% 0 min
March 540 85.5% 0.37% 0 min
April 468 87.2% 0% 0 min
May 482 76.8% 0% 0 min
June 439 69.2% 0.91% 0 min
July 214 65.2% 1.87% 0 min
August 214 80.8% 0% 0 min
September 232 63.9% 0.86% 0 min
October 260 82.7% 0% 0 min
November 254 84.3% 0% 0 min
December 257 72.5% 2.33% 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.