Driving
Oldcastle to Markham
Updated: 27 May 2026
The trip from Oldcastle to Markham spans roughly 375 kilometers. You will drive east on Highway 401, eventually connecting to Highway 404 North. This route typically takes 4 hours under normal traffic conditions. Markham is a vibrant city known for its diverse culinary scene. It is a popular destination for both business and leisure travelers.
Total Distance: 375 km driving distance; 320 km straight-line air distance.
Fastest Way
Driving via Highway 401 and 404 is the fastest, taking 4 hours.
Cheapest Way
Driving is the most economical way to reach Markham from Oldcastle.
Compare Oldcastle to Markham Routes
Driving
Direct
Duration
4 hours
Avg Price
75 CAD
Operator
Personal Vehicle
Route
Highway 401 East to Highway 404 North
Take the 404 North exit from the 401 for the quickest access to Markham.
Travel Tips
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Rush HourAvoid the 401/404 interchange during the 4 PM to 6 PM window.
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ParkingMarkham has several public parking garages in the downtown area.
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DiningExplore the diverse Asian cuisine along Highway 7 in Markham.
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NavigationUse GPS to navigate the complex highway interchanges near Toronto.
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Rest StopsStop at the ONroute in Milton for a quick break.
Safety Tips
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Lane ChangesBe cautious when merging onto the 404, as traffic moves quickly.
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WeatherCheck for snow squalls in the winter months.
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EmergencyKeep a list of emergency contacts in your glove box.
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VisibilityUse daytime running lights at all times.
People Also Ask
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How far is Markham?It is approximately 375 km from Oldcastle.
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Is there a train?You can take the GO Train from Union Station to Markham Station.
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What is the best route?Highway 401 to Highway 404 is the most efficient.
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Is Markham expensive?It is comparable to other GTA suburbs in terms of cost.
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Are there tolls?Only if you choose to use the 407 ETR.
Quick Info
- From Oldcastle, Ontario, Canada
- To Markham, Ontario, Canada
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Modes
Best Time to Travel
Summer months are ideal for enjoying Markham's outdoor festivals.
Things to Do in Markham
1
Main Street Markham
A historic street filled with boutiques and cafes. It is the heart of the old town.
2
Toogood Pond Park
A scenic park with walking trails and wildlife. Perfect for a relaxing stroll.
3
Markham Museum
An open-air museum showcasing local history. It features historic buildings and artifacts.
4
Varley Art Gallery
A public gallery featuring Canadian art. It is located in the historic Unionville area.
Tags
Oldcastle to Markham
driving to Markham
Ontario road trip
fastest route to Markham
traveling to Markham
Oldcastle to Markham distance
Highway 401 to Markham
Markham travel guide
