Best time to fly Hartford to Minneapolis

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

Best month

October

90.5% on time · 84 flights

Worst month

December

68.4% on time · 59 flights

Month Flights On time Cancelled When late, by
January 55 75.5% 9.09% 65 min
February 50 80% 10% 80 min
March 58 85.2% 6.9% 163 min
April 58 87.3% 5.17% 63 min
May 82 90.2% 0% 76 min
June 83 76.8% 1.2% 55 min
July 85 83.1% 0% 87 min
August 82 82.7% 1.22% 62 min
September 77 88.2% 0% 52 min
October 84 90.5% 0% 53 min
November 59 81.4% 0% 76 min
December 59 68.4% 1.69% 45 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.