Best time to fly Los Angeles to Newark

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

Best month

May

90.2% on time · 339 flights

Worst month

March

70.2% on time · 368 flights

Month Flights On time Cancelled When late, by
January 325 75.4% 3.69% 71 min
February 302 80.4% 8.28% 70 min
March 368 70.2% 1.36% 66 min
April 354 88.3% 0.85% 69 min
May 339 90.2% 0.29% 83 min
June 381 83.1% 0.26% 70 min
July 485 72% 4.54% 92 min
August 480 79.8% 2.08% 73 min
September 467 86.1% 0.86% 68 min
October 481 81.1% 1.04% 76 min
November 468 76.6% 1.5% 84 min
December 475 74.7% 1.47% 80 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.