Distance between cities › USA › Montana › Melstone, MT › Distance from Melstone to Altamont Book Hotels

Distance from Melstone, MT to Altamont, SD

Distance

732 mi

Time

12 hours 29 mins

Gas Cost

$68 - $133

There are 552.44 miles from Melstone to Altamont in southeast direction and 732 miles (1,178.04 kilometers) by car, following the US-12 route.

Melstone and Altamont are 12 hours 29 mins far apart, if you drive non-stop .

This is the fastest route from Melstone, MT to Altamont, SD.

Please note the time difference between Melstone, MT and Altamont, SD is 1 hour. The current time in Melstone is 10:44 am and the current time in Altamont is 11:44 am.

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Lowest Price Rental Cars in Melstone, MT

Planning on renting a car to go from Melstone, MT to Altamont, SD? Here there are some offers to rent a car in Melstone, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Melstone »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 29.38 gallons of gas to cover the route between Melstone, MT and Altamont, SD.

The estimated cost of gas to go from Melstone to Altamont is $95.84.

During the route, an average car will release 575.65 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 Melstone, MT and Altamont, SD

If you want to meet halfway between Melstone, MT and Altamont, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.860968 and -101.339854, or 46º 51' 39.4848" N, 101º 20' 23.4744" W. This location is 365.80 miles away from Melstone, MT and Altamont, SD and it would take approximately 6 hours 14 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is New Salem, ND, situated 351 miles from Melstone, MT and 383 miles from Altamont, SD. It would take 6 hours 14 mins to go from Melstone to New Salem and 6 hours 22 mins to go from Altamont to New Salem.