Best time to fly Newcastle upon Tyne to Southampton

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

Best month

February

97.1% on time · 104 flights

Worst month

June

86.9% on time · 216 flights

Month Flights On time Cancelled When late, by
January 107 87.4% 3.74% 0 min
February 104 97.1% 1.92% 0 min
March 111 89.6% 4.5% 0 min
April 108 94.4% 0% 0 min
May 106 93.3% 1.89% 0 min
June 216 86.9% 0.93% 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.