There are 683.94 miles from Billings to Portland in west direction and 886 miles (1,425.88 kilometers) by car, following the I-90 route.
Billings and Portland are 15 hours 43 mins far apart, if you drive non-stop.
This is the fastest route from Billings, MT to Portland, OR. The halfway point is Saltese, MT.
Please note the time difference between Billings, MT and Portland, OR is 1 hour. The current time in Billings is 9:03 pm and the current time in Portland is 8:03 pm.
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