The United Airlines flight from Los Angeles to Sydney was low on fuel, authorities say.Read more
Rachael Thorn explains what "flight bumping" is.
A former Chicago aviation security officer who was fired after dragging a man off a flight last year has filed a lawsuit against the airline and city.
James Long is suing Chicago's Department of Aviation (CDA), its commissioner and the city, alleging he was not trained on how to use force.
He was sacked after removing David Dao from the plane last April to make room for United Airlines employees.
Video footage of the incident sparked international outcry on social media.