The FLIGHT Act requires covered air carriers to provide passengers with timely notifications for domestic or international flights experiencing a delayed departure or taxi delay of 15 minutes or more. These notifications must be sent to each passenger via email or text message , occurring at least every 15 minutes until the delay is resolved. Each notification must include the new estimated time of departure and arrival , offering crucial updates to travelers. Additionally, the bill mandates that these communications provide a clear mechanism for passengers to opt out of receiving further notifications for that specific flight.