First Mesa Consolidated Villages leaders said Councilman Wallace Youvella Sr. died Tuesday in a Scottsdale hospital.
His age wasn't immediately available.
Youvella and his son Wallace Youvella Jr., also a tribal councilman, were headed to an April 8 meeting in Phoenix to join other Hopi Council members and business consultants and discuss potential economic development projects.
Tribal officials said the car carrying Youvella and his son was struck by an oncoming vehicle near Payson.
The younger Youvella suffered injuries that weren't life-threatening and was released from the hospital a few days later.
The First Mesa leadership has scheduled an April 28 memorial service for the elder Youvella at the old Polacca Day School court area.