503-Kingston Rd.

The 503-Kingston Road route starts at Bingham Loop at Victoria Park and Kingston Rd., just like the 502. It proceeds down Kingston Rd. to Queen and along Queen to King Street, sharing track with the 502 (and the 501 for the Queen portion). It then turns on to King and shares track with the 504 car until it reaches Church Street downtown. The 503 then turns south on Church, west on Wellington and north on York to King where the loop is complete and it starts east again.

The areas the 503 serves are briefly described on the 501, 502 and 504 pages, except for the on-street loop downtown. Church and Wellington is the heart of old Toronto and home to the famous Flatiron building. West of here, Wellington passes through the heart of the business district. See the 501-Queen page for a description of the Queen-Coxwell loop.

Since the 503 runs on the same rails as 501, 502, and 504 cars, the service is confined to rush hours only Monday to Friday and 12 - 15 minute headways at that.