The man, 69-year old Dr. David Dao, refused to be involuntarily re-booked when United needed the seats for four crew members who needed to get to Louisville for reassignment.
United States government statistics show that 434,000 passengers voluntarily gave up seats on the country's largest 12 airlines a year ago.
Meanwhile, United is re-working parts of its overbooking policy that were at fault in the incident. In retrospect, it would have saved a lot of money by offering more money to a volunteer.
For those unaware of Delta's recent issues, powerful storms led the airline to cancel around 3,000 flights beginning last week and into the weekend.
Delta had one of the lowest rates of involuntary boarding denials among US carriers a year ago at one per 100,000 passengers.
None would describe their limits on paying passengers. United Continental CEO Oscar Munoz's initial attempts to apologize were roundly criticized.
"We need to use this regrettable event as a defining moment and pivot off it to craft friendly policies", Milton said in a note to employees.
When Delta passengers on overbooked flights check in online or at the check-in kiosk, they are asked what the dollar value of the travel voucher they would accept as compensation for volunteering their seats.
"There were so many people at the airport who were heading to weddings, people who were going to funerals, people who were going to see their dying parents, who had real reasons to go", said Ms Bloom "And of course, we had a reason to go - we wanted to see our family - but it wasn't a life-or-death situation".
Delta involuntarily bumped travelers just once in every 100,000 flights.
An AP analysis of government data shows that in 2015 and 2016, Delta paid an average of $1,118 in compensation for every passenger that it denied a seat.
But not every Delta gate offers gift cards from American Express, which are almost as good as cash. Southwest Airlines paid $758, United $565, and American Airlines $554. If they refuse to stop overbooking, as many have suggested, then the least they can do is offer passengers a boat load of cash.