The trip from Lacolle to Petawawa covers roughly 365 kilometers. You will travel through Montreal, across the Ontario border, and past Ottawa on Highway 417. The final leg involves taking Highway 17 West through the Ottawa Valley. Expect the drive to take approximately four and a half hours. Petawawa is home to a major military base, so traffic can be busy during shift changes.
Total Distance: 365 km driving distance; 325 km straight-line air distance.
Ensure you have a full tank before leaving Ottawa.
Late spring or early autumn for comfortable driving weather.