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

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

Best month

February

81.3% on time · 172 flights

Worst month

October

45.5% on time · 100 flights

Month Flights On time Cancelled When late, by
January 169 63.3% 1.78% 0 min
February 172 81.3% 0.58% 0 min
March 197 78.6% 0.51% 0 min
April 157 75.2% 0% 0 min
May 173 73.8% 0.58% 0 min
June 167 68.5% 1.2% 0 min
July 68 59.4% 5.88% 0 min
August 66 63.1% 1.52% 0 min
September 96 49.5% 1.04% 0 min
October 100 45.5% 1% 0 min
November 94 52.7% 1.06% 0 min
December 104 67% 0.96% 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.