Best time to fly Atlanta to Anchorage

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full ATL to ANC 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 8 50% 0% 51 min
February 4 50% 0% 130 min
March 4 25% 0% 32 min
April 4 100% 0%
May 24 65.2% 4.17% 52 min
June 60 60% 0% 54 min
July 62 51.7% 6.45% 61 min
August 62 66.1% 0% 44 min
September 18 88.9% 0% 23 min
October 4 75% 0% 101 min
November 5 60% 0% 43 min
December 12 40% 8.33% 37 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.