TRB's Airport Cooperative Research Program (ACRP) Synthesis 83: Preparing Airports for Communicable Diseases on Arriving Flights examines current disease preparedness and response practices at U.S. and Canadian airports in coordination with public health officers and partners. While larger airports that receive international flights are most likely to experience the challenges associated with these events, the preparedness and response lessons are transferable to the aviation sector more widely. Smaller airports may be final destinations of those traveling with communicable diseases, so report findings are useful to all airport operators and local public health officers.