And when the flight gets close to its departure time, seats assigned to passengers who haven't shown up can be given away.
We hardly condone the practice whenever it takes place, because it tells customers - the folks who buy the tickets and literally pay the freight - that the airlines grossly undervalue them.
That includes all surveillance videos, cockpit voice recordings, passenger and crew lists, incident reports and other items. United was trying to find seats for four employees, meaning four passengers had to deplane.
Dubai-based Emirates released an ad after video went viral of a United passenger being forcefully removed that toyed with the Chicago-based carrier's longtime slogan. He refused to leave.
"Like you, I continue to be disturbed by what happened on this flight and I deeply apologize to the customer forcibly removed and to all the customers aboard", Munoz said. Video of police officers dragging a passenger from an overb.
In the video, other passengers are heard saying, "Please, my God", "What are you doing?"
According to a spokeswoman for the nonprofit group, United informed the World Affairs Council that Oscar Munoz was canceling his speech on "The Changing Dynamics of Commercial Aviation" because of "unfolding circumstances".
Hours later on Monday, his tone turned defensive.
Munoz said the feelings of embarrassment were "palpable" with him and his United colleagues.
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It came after Munoz issued his third statement in as many days over the incident, offering his "deepest apologies" and saying it is "never too late to do the right thing". "No one should be treated that way", he said.
Dao was initially assumed to be Chinese, and angery Chinese netizens were among the first to speak out, with many threatening to boycott the airline. He was convicted in 2004 of several counts of obtaining drugs by fraud or deceit and was placed on five years of supervised probation and surrendered his medical license, which he got back in 2015.
He said Dao was not in the wrong.
A total of three officers with the Chicago Department of Aviation have been placed on administrative leave, WLS reported Wednesday.
No passengers on the plane have mentioned that Dao did anything but refuse to leave the plane when he was ordered to do so.
As of Tuesday, Dr Dao was still recovering in a Chicago hospital, his lawyer said, but a family member is expected to give a news conference on Thursday.
"The aviation security officer in question is on paid administrative duty pending an investigation", a spokesman for the Chicago Department of Aviation said Tuesday. He has promised to review the airline's passenger-removal policy.
After passengers were already seated on the full flight, United announced that four people needed to get off to make room for employees of a partner airline.