Distance: St. Thomas to Sarnia
Distance between St. Thomas and Sarnia in kilometers, miles and nautical miles.
103 km
Straight-line
great-circle
56 nm
Nautical Miles
as the crow flies
139 km
By Road
1h 44m
38 minutes
By Air
flight time
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Frequently Asked Questions
How far is St. Thomas from Sarnia?
The straight-line distance from St. Thomas to Sarnia is 103 km (56 nautical miles). By road it is approximately 139 km (1h 44m drive). By air the flight takes about 38 minutes.
How many nautical miles is it from St. Thomas to Sarnia?
The nautical distance from St. Thomas to Sarnia is approximately 56 nautical miles.