Best time to fly London to Ingliston

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

Best month

November

90.4% on time · 260 flights

Worst month

July

52.5% on time · 223 flights

Month Flights On time Cancelled When late, by
January 451 80.8% 1.77% 0 min
February 484 88.6% 0% 0 min
March 548 85.6% 0% 0 min
April 490 86.3% 0% 0 min
May 519 74.2% 0% 0 min
June 474 63% 1.27% 0 min
July 223 52.5% 1.79% 0 min
August 222 59.9% 0% 0 min
September 237 57.8% 0% 0 min
October 255 78% 0% 0 min
November 260 90.4% 0% 0 min
December 272 81.5% 0.37% 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.