US Airways Group and American Airlines yesterday said that they had extended their merger agreement as they fight a U.S. government lawsuit seeking to block the combination, which would form the world's largest airline, Reuters reported yesterday. The companies said that they extended the date by which either airline could terminate the merger pact to either Jan. 18, 2014, or the 15th day following the entry of a court order approving the merger should it be entered on or before Jan. 17, whichever is later. The previous termination date for the deal was Dec. 17.
