The drive from Castlegar to Regina covers 1600 km and takes approximately 18 hours. You will travel east on Highway 3 and then join the Trans-Canada Highway (Highway 1) through Alberta and into Saskatchewan. This is a major cross-country journey through the Rockies and the prairies. It is a long drive, so plan for multiple overnight stops.
Total Distance: 1600 km driving distance; 1100 km straight-line air distance.
Plan for an overnight stop in Calgary or Medicine Hat to break up the long drive.
June to August for the best road conditions and daylight hours.