Best time to fly Tallinn to London

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 51 35.3% 0% 0 min
February 55 55.8% 5.45% 0 min
March 55 78.2% 0% 0 min
April 35 77.1% 0% 0 min
May 35 80% 0% 0 min
June 34 76.5% 0% 0 min
July 18 66.7% 0% 0 min
August 18 72.2% 0% 0 min
September 17 82.4% 0% 0 min
October 19 78.9% 0% 0 min
November 31 45.2% 0% 0 min
December 31 41.9% 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.