The journey from Mansonville to St. John's is best completed by flying. You must first drive to Montreal (YUL) and then take a flight to St. John's (YYT). This is the only practical way to cover the vast distance across the Atlantic provinces. The total travel time is approximately 6-8 hours including the drive to the airport.
Total Distance: 2500 km total distance; 2000 km straight-line air distance.
Book flights in advance for better prices.
Summer for the coastal scenery in Newfoundland.