There are two (2) bus routes that travel through Darien operated by CTTransit, the 41 and 42.
Bus 41
The 41 bus line starts in Downtown Stamford, traveling through Darien along the Post Road entering in Norwalk, and vice versa.
Bus 42
The 42 bus line starts in Downtown Stamford, traveling through the Glenbrook area of Stamford and enters Darien at West Avenue where it travels by the Noroton Train Station before continuing on West Ave and terminates at the Darien Train Station and vice versa.
