Best time to fly Las Vegas to Eugene

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

Best month

January

93.8% on time · 80 flights

Worst month

June

75.3% on time · 81 flights

Month Flights On time Cancelled When late, by
January 80 93.8% 0% 84 min
February 72 90.3% 0% 59 min
March 80 85% 0% 37 min
April 77 84.2% 0% 44 min
May 80 86.3% 0% 47 min
June 81 75.3% 0% 46 min
July 83 75.9% 0% 63 min
August 81 80.2% 0% 47 min
September 77 81.8% 0% 53 min
October 84 86.9% 0% 34 min
November 78 84.6% 0% 52 min
December 83 85% 2.41% 33 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.