Best time to fly Atlanta to Los Angeles

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

Best month

March

85.8% on time · 359 flights

Worst month

July

72.4% on time · 498 flights

Month Flights On time Cancelled When late, by
January 367 73.7% 2.18% 71 min
February 323 78.6% 0.31% 43 min
March 359 85.8% 1.67% 68 min
April 380 76.3% 0% 54 min
May 428 76% 0.47% 52 min
June 433 78.7% 1.15% 62 min
July 498 72.4% 1% 75 min
August 482 78.6% 0.83% 58 min
September 455 82.6% 0% 72 min
October 426 82.6% 0% 72 min
November 426 79.4% 1.88% 59 min
December 444 77% 0.9% 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.