Best time to fly Boston to Presque Isle/Houlton

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

Best month

August

87.1% on time · 31 flights

Worst month

July

53.3% on time · 31 flights

Month Flights On time Cancelled When late, by
January 62 76.7% 3.23% 59 min
February 56 80.8% 7.14% 165 min
March 62 64.5% 0% 72 min
April 60 75% 0% 63 min
May 62 57.6% 1.61% 54 min
June 60 63.8% 1.67% 77 min
July 31 53.3% 3.23% 75 min
August 31 87.1% 0% 73 min
September 56 64.3% 0% 67 min
October 62 74.2% 0% 56 min
November 60 75% 0% 57 min
December 62 67.2% 1.61% 82 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.