King's Highway 427 - www.OntHighways.com

Highway 427 is a short commuter highway that runs along the west side of Etobicoke in the city of Toronto. Despite its short length, Highway 427 is part of Canada's national highway network, and is Ontario's second busiest highway. Highway 427 exists in two distict phases. The portion south of Highway 401 replaces a former alignment of Highway 27 that was upgraded to expressway standards in the 1950s. The section to the north of Highway 401 was first constructed as an access road to Toronto's Pearson (Malton) Airport as a 7000-series highway (Highway 7010) between Highway 401 and Dixon Road. Highway 7010 was known as the Airport Expressway at that time. In 1972, the Highway 427 designation was applied to both Highway 27 from the QEW to Highway 401 and the Airport Expressway. Over the decades that preceded from 1972 until now, Highway 427 was gradually extended northerly from Pearson Airport, first to Indian Line, north of Finch Avenue, then to Highway 7 as a precursor to the completion of the 407, and then most recently in 2021 to Major Mackenzie Drive in Vaughan.

King's Highway 427 Shield

Southern Terminus: At Coules Court (just south of the QEW) in Etobicoke.

Northern Terminus: Major Mackenzie Drive in Vaughan.

Length: pre-2021: 21.3 km

Multiplexes: None

Freeway: Entire Length

AADT (2002): Highest: 317,400, from Burnhamthorpe Road northerly to Rathburn Road in Etobicoke;

Lowest: 46,500, from Evans Avenue northerly to the QEW.

Road Info: Like most other Ontario freeways, the 427 is in good shape for its entire length. From the QEW northerly to Highway 401, the 427 is a twelve-lane freeway with a core-distributor system. This section of the 427 is very unique, since the highway hasn't been changed since it was reconstructed into a twelve-lane freeway in the mid-1970s. North of the 401, Highway 427 has between a 4- and 10-lane cross-section and has a much more suburban appearance compared to the very urban southern section.

Highway 427 information:

OntHighways.com		Detailed Route information available below Virtual Tour and other photos of Highway 427

TheKingsHighway.ca		History of Highway 427 Photographic History of Highway 427

Proper Municipality Name	Distance	Interchange Name	North / West Control City	South / East Control City
City of Toronto	0 km / 21.3 km	Coules Court & Browns Line South - At Grade
City of Toronto	0.2 km / 21.1 km	Evans Avenue
City of Toronto	0.7 km / 20.5 km	Queen Elizabeth Way / Gardiner Expressway	Toronto Downtown	Hamilton
City of Toronto	1.0 km / 20.3 km	The Queensway - North Partial Interchange
City of Toronto	2.6 km / 20.3 km	Highway 5 (Dundas Street)
City of Toronto	4.5 km / 16.8 km	Burnhamthorpe Road
City of Toronto	5.6 km / 15.7 km	Rathburn Road - South Partial Interchange
City of Toronto	7.2 km / 14.1 km	King's Highway 27 - South Partial Interchange
City of Toronto	8.2 km / 13.1 km	King's Highway 401
Toronto - Mississauga Boundary	11.2 km / 10.1 km	Dixon Road - South Partial Interchange	Pearson International Airport
Toronto - Mississauga Boundary	12.3 km / 8.6 km	King's Highway 409	Pearson International Airport
Toronto - Mississauga Boundary	15.2 km / 6.1 km	Rexdale Boulevard & Derry Road (Peel Road 5)
City of Toronto	17.1 km / 4.2 km	Finch Avenue
City of Vaughan	19.4 km / 1.8 km	Highway 407 ETR	-----	-----
City of Vaughan	21.3 km / 0 km	Highway 7 (York Road 7)
Highway 427 ENDS