On June 20th, United Airlines and the Association of Flight Attendants are scheduled to have a mediation session in an effort to bring an end to contract negotiations. Last week the two groups failed to come to an agreement over a new contract for the company's flight attendants. The Association of Flight Attendants is estimated to represent 24,000 employees of United Airlines. Flight attendants have not had a joint contract since Continental Airlines and United merged back in 2010. Other major employee groups of the airline ratified contracts in April, some of which included pay increases of up to 30%.
See "United to Continue Talks with Flight Attendants over Labor Contract", Lauren Zumbach, Chicago Tribune, June 8, 2016