United Airlines will refund the ticket fares of all passengers who were on the infamous Flight 3411 after a passenger was dragged from his seat after refusing to leave the plane due to an overbooking.
"What happened to my dad should have never happened to any human being", she said.
Demetrio and a second attorney, Stephen Golan, said neither they nor the family had heard from United yet. Air travelers are drawn to the cheapest price no matter the name on the plane.
Hoping to resolve the incident and resulting backlash, the company also announced that it would no longer ask police to remove passengers from full flights.
Much of the uproar stemmed from Dao's status as a paying passenger who was being removed, against his will, to make room for additional crew members on the overbooked flight.
Dao was among four passengers chosen at random to be bumped from Sunday's flight from Chicago to Louisville, Kentucky, after nobody was enticed enough by the airline's offers to voluntarily gave up their seats.
Passengers agree to a litany of terms in any airline's "contract of carriage", which they agree to when purchasing a ticket.More news: United Air Won't Fire Anyone Over Dragging Debacle, CEO Says
Disturbing video shot by passengers showing the man's bloodied face quickly went viral on social media, prompting disgust and even boycotts.
At a City Council committee hearing Thursday, aldermen ripped officials from United and the department about the episode.
Early on, United CEO Oscar Munoz added to the furor when he apologized for the incident but accused Dao of being belligerent.
The passenger was identified as Mr Dao, a 69-year-old physician from Elizabethtown, Kentucky.
Dao's lawyers filed an emergency request with an IL state court on Wednesday to require United Continental Holdings Inc and the City of Chicago to preserve video recordings and other evidence related to Sunday's incident, which would be a precursor to a lawsuit.
Those documents are often the first steps toward a lawsuit.
Three security officers have been placed on leave after the incident, according to the Chicago Department of Aviation. One officer was placed on leave on Tuesday.