To land at Cairo, IL (CIR-Cairo Regional) on time, choose a flight that takes off from Gerald R. Ford Intl. Airport (GRR) before 3 PM. The chance 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.