Best time to fly London to Nice

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

Best month

February

88.6% on time · 353 flights

Worst month

July

53.5% on time · 254 flights

Month Flights On time Cancelled When late, by
January 380 81.7% 0.79% 0 min
February 353 88.6% 0.57% 0 min
March 406 82.8% 2.46% 0 min
April 438 85.2% 0% 0 min
May 477 75.6% 0.21% 0 min
June 474 66.8% 1.48% 0 min
July 254 53.5% 4.33% 0 min
August 251 74.4% 0.4% 0 min
September 236 63.2% 2.12% 0 min
October 236 76.4% 1.27% 0 min
November 175 85.6% 0.57% 0 min
December 184 76.5% 0.54% 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.