Best time to fly Chicago to Albuquerque

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

Best month

May

84.2% on time · 228 flights

Worst month

July

63.9% on time · 185 flights

Month Flights On time Cancelled When late, by
January 118 69.2% 0% 68 min
February 119 75.6% 0% 44 min
March 175 76.8% 3.43% 56 min
April 206 73.7% 0% 66 min
May 228 84.2% 0% 77 min
June 212 66.8% 1.89% 73 min
July 185 63.9% 2.7% 74 min
August 159 79.5% 1.89% 73 min
September 230 77.8% 0% 45 min
October 233 84.1% 0% 47 min
November 152 79.5% 0.66% 54 min
December 151 74.7% 0.66% 56 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.