There are 371.67 miles from Union Pier to Ontonagon in northwest direction and 508 miles (817.55 kilometers) by car, following the I-39 N route.
Union Pier and Ontonagon are 8 hours 25 mins far apart, if you drive non-stop .
This is the fastest route from Union Pier, MI to Ontonagon, MI. The halfway point is Poynette, WI.
Union Pier, MI and Ontonagon, MI are in the same time zone (EDT). Current time in both locations is 8:15 pm.
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