Best time to fly Paris (Roissy-en-France to Newcastle upon Tyne

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

Best month

February

86% on time · 172 flights

Worst month

September

55.2% on time · 96 flights

Month Flights On time Cancelled When late, by
January 169 69.3% 1.78% 0 min
February 172 86% 0.58% 0 min
March 198 82.1% 1.01% 0 min
April 157 77.1% 0% 0 min
May 173 75.1% 0% 0 min
June 169 67.9% 2.37% 0 min
July 68 65.6% 5.88% 0 min
August 66 57.6% 0% 0 min
September 96 55.2% 0% 0 min
October 100 62.6% 1% 0 min
November 94 75.3% 1.06% 0 min
December 105 80.8% 0.95% 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.