Best time to fly London to Amman

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

Best month

April

92.2% on time · 90 flights

Worst month

July

56% on time · 50 flights

Month Flights On time Cancelled When late, by
January 126 81% 0% 0 min
February 112 83.8% 0.89% 0 min
March 109 65.6% 14.68% 0 min
April 90 92.2% 0% 0 min
May 93 77.4% 0% 0 min
June 78 63.9% 7.69% 0 min
July 50 56% 0% 0 min
August 62 69.4% 0% 0 min
September 60 66.7% 0% 0 min
October 62 88.7% 0% 0 min
November 60 75% 0% 0 min
December 64 65.6% 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.