A statement issued by Sean Duffy, the US transport secretary, said all nine people on board had been killed when the plane crashed in a neighbourhood near Cresthaven at 12.50pm local time (5.50pm GMT) on Sunday.
Mr Duffy added: “Please join me in praying for the families and loved ones of those we lost.”
Weather may have played role
Thunderstorms had been reported in the area at the time of the crash, and experts said ice could have played a role.
Ms Filgueiras’s sister told the Palm Beach Post that the 20-year-old “fought until the last moment she could”.
Giulia Filgueiras, 21, described her sister as a brave, “amazing girl” who always followed her dreams, the outlet said, adding that she “showed any girl could do what it takes”.
A married couple and their two children were reportedly among the nine victims on board the plane, the Palm Beach Post reported.
“It’s quite a blow. We had a daughter, her husband and two grandchildren on the plane,” one of the victims’ fathers, a 70-year-old from Texas, told the outlet.
The two were entrepreneurs, according to social media accounts seen by the outlet. One was a potter and owner of a public relations company, the other was a software founder.