Last December, American Airlines' passenger service agents and the Communications Workers of America filed an application with federal regulators to hold a union representation vote.
A year later, the agents are finally getting to cast their vote.
American had filed several legal challenges contesting the application and halting the vote. The carrier even took its appeals to the Supreme Court which denied its request to stop the vote while another appeal is considered.
American has argued that the union did not collect authorization cards from 50 percent of the passenger service agents as required by a law enacted in February. The National Mediation Board, which oversees union representation elections, argued that the previous 35 percent standard should be used since the application was filed when an older law was in place.
Voting began on December 4 and votes will be tallied by the NMB on January 15.