Best time to fly Burbank to Chicago

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

There is not yet enough of the year on record for this route to say anything about seasons. The months below are shown as recorded.

Month Flights On time Cancelled When late, by
January 10 70% 0% 27 min
February 18 83.3% 0% 26 min
March 22 90.9% 0% 18 min
April 29 96.6% 0% 51 min
May 31 90.3% 0% 34 min
June 30 96.7% 0% 19 min
July 31 90% 0% 25 min
August 30 82.8% 0% 21 min
September 30 90% 0% 45 min
October 31 83.9% 0% 62 min
November 29 75% 3.45% 72 min
December 31 86.7% 3.23% 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.