Best time to fly London to Tenerife

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

Best month

November

89.3% on time · 178 flights

Worst month

July

40.8% on time · 144 flights

Month Flights On time Cancelled When late, by
January 349 77.7% 0% 0 min
February 344 76.1% 0.29% 0 min
March 368 73.9% 0% 0 min
April 365 79.5% 0% 0 min
May 342 73.9% 0.29% 0 min
June 295 56.9% 0% 0 min
July 144 40.8% 1.39% 0 min
August 143 56.6% 0% 0 min
September 147 44.2% 0% 0 min
October 168 67.3% 0% 0 min
November 178 89.3% 0% 0 min
December 179 77.1% 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.