Best time to fly Washington to Omaha

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

Best month

November

83.7% on time · 50 flights

Worst month

June

53.6% on time · 56 flights

Month Flights On time Cancelled When late, by
January 51 76.6% 7.84% 55 min
February 51 79.6% 3.92% 32 min
March 58 68.5% 5.17% 94 min
April 56 73.2% 0% 96 min
May 57 66.7% 0% 73 min
June 56 53.6% 0% 81 min
July 57 71.4% 1.75% 129 min
August 53 81.1% 0% 39 min
September 52 78.8% 0% 96 min
October 54 77.8% 0% 46 min
November 50 83.7% 2% 119 min
December 50 54% 0% 44 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.