Is Newmarket a big town?

It is a major town and a regional hub in York Region.

How long is the drive?

The drive takes approximately 3 hours and 30 minutes.

Are there trains to Newmarket?

Yes, there is GO Transit rail service from Toronto to Newmarket.

What is the best route?

Highway 401 to Highway 404 is the most direct path.

Is it a good day trip?

Yes, it is a great destination for shopping and waterfront activities.

Newmarket

Driving

Oldcastle to Newmarket

Updated: 27 May 2026

The drive from Oldcastle to Newmarket covers 300 kilometers and takes approximately 3 hours and 30 minutes. You will travel east on Highway 401, then north on Highway 400 and Highway 404 through the Greater Toronto Area. Newmarket is a vibrant town in the York Region, known for its historic downtown, beautiful parks, and growing economy. The route involves major highways and can be busy. It is a popular destination for both business and leisure.

Total Distance: 300 km driving distance; 260 km straight-line air distance.

Fastest Way

Driving via Highway 401 and Highway 404 is the fastest route, taking 3 hours 30 minutes.

Cheapest Way

Driving your own vehicle is the only practical way to reach Newmarket.

Compare Oldcastle to Newmarket Routes

Driving

Direct

Duration

3 hours 30 mins

Avg Price

$50 - $60 in fuel

Operator

Personal Vehicle

Route

Highway 401 E to Highway 404 N.

Newmarket is a major hub; plan your route to avoid the worst of the GTA traffic.

Travel Tips

Traffic
The Highway 401 and 404 corridors can be very busy, especially on weekends and holidays.
Fuel Up
Ensure you have enough fuel before leaving the major highway corridors.
Weather
Check the weather forecast for the York Region before you leave.
Navigation
Use a GPS to navigate the busy highways efficiently.
Parking
Parking is available in the downtown area, but can be busy during peak times.

Safety Tips

Highway Driving
Be prepared for heavy traffic and potential delays on major highways.
Speed Limits
Adhere to speed limits, as they are strictly enforced on major highways.
Emergency
Southlake Regional Health Centre provides local medical services.
Road Conditions
Check for construction updates on the Ontario 511 website.