About 13.5 hours.
According to Google Maps, the drive from Grand Forks, North Dakota to Billings, Montana will take about 9 hours and 35 minutes. The distance is 685 miles (1,102 km).
From Billings and Seattle it is 819 mi (about 11 hours 37 mins).
It will take you about 12 hours to drive the 841 miles between the two locations.
Google Maps estimates the driving time as 14 hours and 7 minutes.
The driving distance from Billings, Montana to Albuquerque, New Mexico is 997.0 miles. The drive takes from 13 hours 43 minutes to 14 hours 10 minutes, depending on traffic. The shortest flight takes 3 hours 40 minutes.
The driving distance from Billings, Montana to Yorkton, Saskatchewan, Canada is 588 miles via I-94 E per MapQuest. The driving time per MapQuest is 9 hours and 15 minutes.
The distance from Billings, Montana to Mount Rushmore in South Dakota is approximately 400 miles, and it takes around 6 to 7 hours to drive between the two locations.
From Billings, Montana to Yaak, Montana is 10-11 hours, try google maps for more specific information...
The driving distance from Billings Montana to Missoula Montana is 343 miles via I-90 West per MapQuest. The driving time per MapQuest is 4 hours and 41 minutes.
The driving distance from Billings Montana to Glendive Montana is 219 miles per Map Quest. The driving time per Map Quest is 3 hours and 4 minutes.
The driving distance from Winnipeg, Manitoba, Canada to Billings, Montana is 826 miles per MapQuest. The driving time per MapQuest is 11 hours and 40 minutes.