Driving
Markham to Cornwall
Updated: 28 May 2026
The journey from Markham to Cornwall is approximately 420 kilometers. The most efficient route is via Highway 401 east. Travel time is typically 4.5 to 5 hours. Cornwall is a historic city located on the St. Lawrence River in Eastern Ontario. This route takes you across the entire length of the busy 401 corridor.
Total Distance: 420 km driving distance, 380 km straight-line air distance.
Fastest Way
Driving via Highway 401 is the fastest, taking about 4.5 hours.
Cheapest Way
Driving your own vehicle is the most practical and cost-effective method.
Compare Markham to Cornwall Routes
Driving
Direct
Duration
4 hours 30 mins
Avg Price
$80-$100 in fuel
Operator
Personal Vehicle
Route
Hwy 401 E
The 401 is a long drive; plan for regular breaks at ONroute centers.
Travel Tips
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TrafficThe 401 can be very busy near Toronto; check traffic reports.
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ParkingDowntown Cornwall has plenty of street parking.
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NavigationUse GPS to navigate the city as it has many one-way streets.
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EventsCheck the city website for local festivals.
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DiningThe downtown area has a variety of local restaurants.
Safety Tips
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Highway SafetyThe 401 is high-speed; maintain a safe following distance.
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WildlifeBe cautious of deer on rural roads near Cornwall.
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Winter DrivingEnsure your vehicle is equipped for winter conditions.
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EmergencyKeep a roadside assistance number handy.
People Also Ask
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Is Cornwall far from Markham?Yes, it is about 420 kilometers away.
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Can I take a train?Yes, VIA Rail service is available to Cornwall.
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How long is the drive?Approximately 4.5 to 5 hours.
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Is there a toll?No, the route is toll-free.
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What is the best route?Highway 401 is the most direct.
Quick Info
- From Markham, Ontario, Canada
- To Cornwall, Ontario, Canada
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Modes
Best Time to Travel
Summer for the St. Lawrence River activities.
Things to Do in Cornwall
1
Lamoureux Park
A beautiful park on the St. Lawrence River. It is perfect for walking and cycling.
2
Cornwall Community Museum
Features exhibits on local history and culture. It is a great place to learn about the region.
3
St. Lawrence River
Offers opportunities for boating and fishing. It is a key natural feature of the city.
4
Historic SDG Jail
A historic jail turned museum. It is a fascinating place to visit.
Tags
Markham to Cornwall
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Cornwall travel guide
Eastern Ontario
Highway 401
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