Pandemic Disaster Assistance Act of 2020 This bill authorizes the Federal Emergency Management Agency (FEMA) to provide direct assistance to individuals who have been impacted by a pandemic. Specifically, at the discretion of a governor or the President, individuals impacted by a pandemic will be eligible to apply directly to federal agencies for various forms of assistance, including (1) assistance under the Disaster Supplemental Nutrition Assistance program; (2) assistance under the Disaster Unemployment Assistance program; and (3) other needs assistance through FEMA's Individual Assistance program, including medical, funeral, and child care assistance. With respect to the Disaster Supplemental Nutrition Assistance program, the Department of Agriculture must provide options other than an in-person interview. With respect to the Disaster Unemployment Assistance program, the bill creates a national floor for benefits at 1.5 times the national weekly average and provides a waiver to the requirement to exhaust state unemployment insurance options.