On aircraft with how many passenger seats is a flight attendant crew member required?

The requirement for having a flight attendant on an aircraft is established by aviation regulations that state a flight attendant is necessary for certain configurations of passenger seating. Specifically, an aircraft must have one flight attendant for every 50 passenger seats for a maximum of five attendants. However, the minimum number of passenger seats that necessitate at least one flight attendant is 20. Therefore, for aircraft with 20 or more passenger seats, having at least one flight attendant is mandated by regulation to ensure passenger safety and compliance with federal aviation requirements. This regulation reflects the importance of having trained personnel onboard to assist passengers during boarding, safety demonstrations, and in emergency situations, enhancing overall flight safety.