Best time to fly Minneapolis to Hartford

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

Best month

November

88.1% on time · 59 flights

Worst month

December

72.4% on time · 59 flights

Month Flights On time Cancelled When late, by
January 55 78.4% 7.27% 64 min
February 50 80% 10% 54 min
March 58 81.8% 5.17% 37 min
April 58 83.6% 5.17% 64 min
May 82 82.9% 0% 61 min
June 83 80.5% 1.2% 55 min
July 85 78.3% 0% 87 min
August 82 85.2% 1.22% 121 min
September 77 80.5% 0% 43 min
October 85 81.2% 0% 46 min
November 59 88.1% 0% 97 min
December 59 72.4% 1.69% 52 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.