Is Newmarket worth visiting?

Yes, it is a vibrant town with great amenities.

How long is the drive?

It takes about 4 to 4.5 hours from Harrow.

Yes, there are many hotels and motels in the area.

Yes, GO Transit operates trains to Newmarket.

What is the Main Street like?

It is historic and full of local shops.

Harrow

Newmarket

Driving

Harrow to Newmarket

Updated: 27 May 2026

The journey from Harrow to Newmarket covers 380 kilometers, taking you through the heart of Ontario via Highway 401 and Highway 404. You will pass through the Greater Toronto Area before heading north into York Region. The drive typically takes 4 to 4.5 hours. Newmarket is a vibrant town known for its historic Main Street and growing community. It is a convenient destination for those visiting the northern GTA.

Total Distance: 380 km driving distance, 310 km straight-line air distance.

Fastest Way

Driving via Highway 401 and 404 is the fastest route.

Cheapest Way

Driving your own vehicle is the most cost-effective way to reach Newmarket.

Compare Harrow to Newmarket Routes

Driving

Direct

Duration

4 hours 15 mins

Avg Price

65-85 CAD in fuel

Operator

Personal Vehicle

Route

Highway 401 East to Highway 404 North.

Highway 404 can be very busy; use the HOV lanes if eligible.

Travel Tips

Traffic Planning
Avoid the GTA during rush hour to ensure a smoother journey.
Parking
Newmarket has convenient parking near the downtown and shopping areas.
Local Events
Check the town's website for community festivals and events.
Fuel Stops
Fill up in larger centers to ensure better pricing.
Route Choice
Highway 404 is the most direct route; follow signs for Newmarket carefully.

Safety Tips

Highway Vigilance
Stay alert on the busy highways around the GTA.
Winter Driving
Newmarket can experience snow; ensure your vehicle is winter-ready.
Emergency Services
Southlake Regional Health Centre is available for medical needs.
Pedestrian Safety
Be mindful of pedestrians in the busy downtown area.