Best time to fly New York to Richmond

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

Best month

September

88.4% on time · 366 flights

Worst month

December

69.6% on time · 362 flights

Month Flights On time Cancelled When late, by
January 248 80.3% 7.66% 64 min
February 252 80.3% 8.73% 54 min
March 276 73.8% 9.78% 58 min
April 310 78.3% 0.32% 61 min
May 382 80.6% 2.88% 74 min
June 366 77.3% 9.56% 68 min
July 343 70.9% 9.62% 69 min
August 332 78.6% 8.43% 69 min
September 366 88.4% 0.82% 62 min
October 400 79.4% 1.5% 62 min
November 405 81.8% 3.7% 63 min
December 362 69.6% 1.93% 59 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.