To touch down at Ada, OK (ADT-Ada Municipal) without delays, opt for a flight that takes off from Shenandoah Valley Regional Airport (SHD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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.