Colorado Rep. Scott McInnis has asked the government's antitrust division to block the proposed merger of United Airlines and US Airways and investigate United's operations at Denver International Airport.
The Grand Junction Republican has been an outspoken critic of Chicago-based United, the main carrier at DIA. He wants the city of Denver to increase airline competition at DIA to improve what he says is United's poor service.
McInnis wrote a letter to John Nannes, the acting assistant attorney general in charge of the antitrust division, saying competition in the airline industry is at an all-time low while service has declined and prices gone up.
Because of that, McInnis said, it would be unwise to approve a proposed merger between US Airways and United.
McInnis also alleged that United has created a monopoly and said the government should investigate United's contract with the city of Denver. He called the document instrumental in United's ''efforts to monopolize airline travel out of DIA.''