Congress to examine $3 billion airline merger this week

House Transportation and Infrastructure Chairman Jim Oberstar (D-Minn.) opposes the United-Continental deal and has urged the Justice Department to "demonstrate its commitment to vigorous antitrust enforcement and healthy competition in the airline industry." 

The proposed merger will reduce competition, consumer choices and service to smaller, underserved communities, Oberstar said. 

The last merger, between Delta and Northwest, was quickly approved in 2008 by the Justice Department under the Bush administration. 

United CEO Glenn Tilton and Jeffery Smisek, head of Continental, will testify at the 2:30 p.m. Judiciary hearing.