The 319 Wilson Blue Night bus route operates between York Mills Station on the Yonge-University-Spadina Subway and the area of Martin Grove Road and Steeles Avenue West, generally in an east-west direction.  Accessible service is provided on the route. Bike racks are available on this route.

One single service is operated:  the 319 (York Mills Stn-Martin Grove & Steeles) branch operates during the overnight period, seven days a week.

Westbound 319 BLUE NIGHT TO MARTIN GROVE AND STEELES

These buses operate from York Mills Station via west on York Mills Road, west on Wilson Avenue, northwest on Walsh Avenue, northwest on Albion Road, west and north on Elmhurst Drive, west on Hinton Road, north on Harefield Drive, northwest on Elmhurst Drive, west on Brookmere Road, west on Westhumber Boulevard, north on Martin Grove Road, and west on Steeles Avenue West to Steeles/Martin Grove Loop (on the south side of Steeles Avenue West, west of Martin Grove Road).

Eastbound 319 BLUE NIGHT TO YORK MILLS STN

These buses operate from Steeles/Martin Grove Loop via east on Steeles Avenue West, south on Martin Grove Road, east on Westhumber Boulevard, east on Brookmere Road, southeast on Elmhurst Drive, south on Harefield Drive, east on Hinton Road, south and east on Elmhurst Drive, southeast on Albion Road, southeast on Walsh Avenue, east on Wilson Avenue, and east on York Mills Road to York Mills Station.

All buses on the route serve local bus stops along the route.