Getting Around Ontario

Historically, the province has used two major east-west routes, both starting from Montreal in the neighbouring province of Quebec. The northerly route, which was pioneered by early French-speaking fur traders, travels northwest from Montreal along the Ottawa River, then continues westward towards Manitoba. Major cities on or near the route include Ottawa, North Bay, Sudbury, Sault Ste. Marie, and Thunder Bay. The much more heavily travelled southerly route, which was popularized by later English-speaking United Empire Loyalists and later other European immigrants, travels southwest from Montreal along the St. Lawrence River, Lake Ontario, and Lake Erie before entering the United States in Michigan. Major cities on or near the route include Kingston, Oshawa, Toronto, Mississauga, Kitchener/Waterloo, London, Sarnia, and Windsor. Most of Ontario's major transportation infrastructure is oriented east-west and roughly follows one of these two original routes.

Water transportation
The St. Lawrence Seaway, which extends across most of the southern portion of the province and connects to the Atlantic Ocean, is the primary water transportation route for cargo, particularly iron ore and grain. In the past, the Great Lakes and St. Lawrence River were also a major passenger transportation route, but over the past half century they have been nearly totally supplanted by vehicle, rail, and air travel. There was previously a ferry connecting Toronto with Rochester, New York.

Rail transportation
Via Rail operates the inter-regional passenger train service on the Quebec City-Windsor Corridor. In addition Amtrak rail connects Ontario with key New York cities including Buffalo, Albany, and New York. Ontario Northland provides rail service to destinations as far north as Moosonee near James Bay, connecting them with the south. Freight rail is dominated by the founding cross-country CN and CP rail companies, which during the 1990s sold many short rail lines from their vast network to private companies operating mostly in the south. Regional Commuter rail is limited to the provincially owned GO Transit, which serves a train/bus network spanning the Golden Horseshoe region, its hub in Toronto. The TTC in Toronto operates the province's only subway and streetcar system, one of the busiest in North America. Outside of Toronto, the O-Train LRT line operates in Ottawa with ongoing expansion of the current line and proposals for additional lines.