Distance between cities › USA › South Dakota › Mount Vernon, SD › Distance from Mount Vernon to Box Elder Book Hotels

Distance from Mount Vernon, SD to Box Elder, MT

Distance

883 mi

Time

15 hours 38 mins

Gas Cost

$82 - $160

There are 646.56 miles from Mount Vernon to Box Elder in northwest direction and 883 miles (1,421.05 kilometers) by car, following the I-90 route.

Mount Vernon and Box Elder are 15 hours 38 mins far apart, if you drive non-stop .

This is the fastest route from Mount Vernon, SD to Box Elder, MT.

Please note the time difference between Mount Vernon, SD and Box Elder, MT is 1 hour. The current time in Mount Vernon is 6:38 am and the current time in Box Elder is 5:38 am.

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Lowest Price Rental Cars in Mount Vernon, SD

Planning on renting a car to go from Mount Vernon, SD to Box Elder, MT? Here there are some offers to rent a car in Mount Vernon, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mount Vernon »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 35.48 gallons of gas to cover the route between Mount Vernon, SD and Box Elder, MT.

The estimated cost of gas to go from Mount Vernon to Box Elder is $115.73.

During the route, an average car will release 695.07 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Mount Vernon, SD and Box Elder, MT

If you want to meet halfway between Mount Vernon, SD and Box Elder, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.550737 and -105.925581, or 45º 33' 2.6532" N, 105º 55' 32.0916" W. This location is 441.69 miles away from Mount Vernon, SD and Box Elder, MT and it would take approximately 7 hours 49 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Sonnette, MT, situated 443 miles from Mount Vernon, SD and 462 miles from Box Elder, MT. It would take 8 hours 5 mins to go from Mount Vernon to Sonnette and 8 hours 57 mins to go from Box Elder to Sonnette.