It is 663 miles according to Google Maps taking this route:
The shortest driving distance is 479 miles.
about 610 miles
1020 miles
Billings, MT
Billings, MT to Montgomery, AL is 1794 miles. Billings, MO to Montgomery, NY is 1211 miles. Including the states is important.
1,000 miles
It is 1,001.82 miles according to MapQuest.
It is 1,939.89 miles accrding to MapQuest.
About 275 road miles.
It is 450.84 miles according to MapQuest.
Seattle to Billings is 818 road miles.
360 miles