Sarnia
Sarnia
Sault Ste. Marie
Sault Ste. Marie
Driving

Sarnia to Sault Ste. Marie

Updated: 26 May 2026

The route from Sarnia to Sault Ste. Marie covers approximately 700 kilometers, taking you north through the heart of Ontario's cottage country and into the rugged landscape of the Algoma District. The drive typically takes eight to nine hours, following Highway 400 to Sudbury and then Highway 17 West along the North Channel of Lake Huron. This journey is highly scenic, especially as you approach the Sault. While driving is the primary mode of transport, it requires careful planning due to the remote stretches of the highway.

Total Distance: 700 km driving distance; 550 km straight-line air distance.
Fastest Way
Driving is the only practical way to make this trip, taking 8.5 hours.
Cheapest Way
Driving is the most cost-effective way to reach Sault Ste. Marie.
Compare Sarnia to Sault Ste. Marie Routes
Driving
Direct
Duration
8 hours 30 mins
Avg Price
$110-$150 in fuel
Operator
Personal Vehicle
Route
Highway 402 to 401, then 400 North to 69, and 17 West.

The stretch between Sudbury and Sault Ste. Marie is beautiful but remote.

Travel Tips
  • Fuel Stops
    Gas up in Sudbury before heading west on Highway 17.
  • Cell Service
    Expect limited reception between towns on Highway 17.
  • Wildlife
    Be extremely cautious of moose and deer on the highway at night.
  • Road Conditions
    Check Ontario 511 for winter road closures.
  • Packing
    Bring extra snacks and water for the long stretches between service centers.
Safety Tips
  • Fatigue
    Take frequent breaks to stay alert on the long, winding roads.
  • Emergency Kit
    Keep a winter emergency kit in your car at all times.
  • Speeding
    Obey speed limits, especially in small towns along the route.
  • Visibility
    Use your headlights during the day for better visibility on the highway.
People Also Ask
  • How long is the drive?
    Approximately 8.5 hours.
  • Is there a train?
    Only the tour train, not a passenger service from Sarnia.
  • Are there tolls?
    No, the route is toll-free.
  • What is the best time to visit?
    Late September for the fall colors.
  • Is the road safe?
    Yes, but it requires caution due to wildlife and remote sections.
Quick Info
  • From Sarnia, Ontario, Canada
  • To Sault Ste. Marie, Ontario, Canada
  • Modes
Best Time to Travel

Autumn for the world-famous fall colors along the Agawa Canyon route.

Things to Do in Sault Ste. Marie
1
Agawa Canyon Tour Train
Take a scenic train ride through the wilderness of Northern Ontario. It is famous for its spectacular autumn foliage views.
2
Canadian Bushplane Heritage Centre
Explore the history of bush flying and forest fire protection in Canada. It features many vintage aircraft.
3
Sault Ste. Marie Canal National Historic Site
Walk along the historic canal and see the locks in action. It is a great spot for photography and history buffs.
4
Hiawatha Highlands
Enjoy year-round outdoor activities including hiking, mountain biking, and cross-country skiing in this beautiful park.
Tags
Sarnia to Sault Ste. Marie driving to Sault Ste. Marie Northern Ontario travel Highway 17 Sarnia road trip Sault Ste. Marie tourism Ontario travel long distance driving