United adds TSA wait times to app as DHS shutdown strains airport security lines

United Airlines is rolling out a new feature to its app that will provide users with estimated TSA security wait times as airport congestion intensifies during a partial Department of Homeland Security shutdown that has strained screening operations.

The feature is launching in a pilot phase at several of the airline’s largest U.S. hub airports, including Chicago, Denver, Los Angeles and Newark, with broader expansion possible if successful.

A nearly seven-week partial shutdown of the DHS has disrupted airport operations...