The Transportation Department continues its battle against chronically delayed flights with new actions against Southwest, featuring a Bay Area route.

The DOT filed a lawsuit against Southwest Airlines, citing a pattern of chronic delays, as the government pushes for stricter accountability.

The Transportation Department accused Southwest Airlines of operating “chronically delayed flights,” according to multiple outlets, marking the latest action against a major airline for late flights after the department fined JetBlue Airways over the issue early this month.