Best time to fly Rosario to Rio De Janeiro

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full ROS to GIG 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 94 79.8% 0% 56 min
February 89 86.4% 1.12% 54 min
March 69 82.4% 1.45% 87 min
April 35 91.4% 0% 45 min
May 27 88.9% 0% 250 min
June 25 92% 0% 63 min
July 45 88.9% 0% 45 min
August 27 92.6% 0% 80 min
September 19 100% 0%
October 13 91.7% 7.69% 15 min
November 14 78.6% 0% 30 min
December 16 68.8% 0% 91 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.