United Airlines has attacked the American Airlines plan, saying that the DOT should look at connections served rather than the local market to determine consumer benefit. Now that the federal government has broken up its JetBlue partnership, American’s ability to serve connections in the New York market is far more limited. The Department of Justice handed a huge win to United and to Delta in New York by preventing American-JetBlue from becoming a large competitor with their New York duopoly.
According to United, DOT set a precedent in preferring connecting markets to Tokyo Haneda over non-stop ones in their 2019 proceeding originally awarding the routes since that was a justification for denying Las Vegas a Haneda flight.