To land at Roissy-Charles de Gaulle Airport (CDG) on schedule, book a flight that leaves Ariake Saga Airport (HSG) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.