Best time to fly Las Vegas to Bellingham

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

Best month

December

92% on time · 88 flights

Worst month

July

77.1% on time · 145 flights

Month Flights On time Cancelled When late, by
January 62 88.7% 0% 314 min
February 61 90.2% 0% 81 min
March 85 91.8% 0% 131 min
April 81 86.4% 0% 60 min
May 85 85.9% 0% 63 min
June 82 89% 0% 103 min
July 145 77.1% 0.69% 88 min
August 91 89% 0% 82 min
September 79 89.7% 0% 60 min
October 83 78.3% 0% 73 min
November 74 85.5% 6.76% 61 min
December 88 92% 0% 188 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.