Best time to fly Atlanta to Reno

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

Best month

December

87.2% on time · 50 flights

Worst month

July

51.7% on time · 62 flights

Month Flights On time Cancelled When late, by
January 45 74.4% 4.44% 48 min
February 44 67.4% 0% 58 min
March 60 68.3% 0% 69 min
April 60 68.3% 0% 58 min
May 62 62.9% 0% 49 min
June 60 57.1% 5% 54 min
July 62 51.7% 6.45% 83 min
August 49 67.3% 0% 68 min
September 41 70.7% 0% 50 min
October 42 73.8% 0% 58 min
November 44 68.2% 0% 40 min
December 50 87.2% 2% 61 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.