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

Distance from Melstone, MT to Avon, SD

Distance

654 mi

Time

12 hours 37 mins

Gas Cost

$61 - $119

There are 540.81 miles from Melstone to Avon in southeast direction and 654 miles (1,052.51 kilometers) by car, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Melstone and Avon are 12 hours 37 mins far apart, if you drive non-stop .

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

Please note the time difference between Melstone, MT and Avon, SD is 1 hour. The current time in Melstone is 12:06 pm and the current time in Avon is 1:06 pm.

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Lowest Price Rental Cars in Melstone, MT

Planning on renting a car to go from Melstone, MT to Avon, 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 26.26 gallons of gas to cover the route between Melstone, MT and Avon, SD.

The estimated cost of gas to go from Melstone to Avon is $85.66.

During the route, an average car will release 514.51 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 Avon, SD

If you want to meet halfway between Melstone, MT and Avon, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.166754 and -103.313851, or 44º 10' 0.3144" N, 103º 18' 49.8636" W. This location is 326.95 miles away from Melstone, MT and Avon, SD and it would take approximately 6 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Black Hawk, SD, situated 331 miles from Melstone, MT and 324 miles from Avon, SD. It would take 6 hours 59 mins to go from Melstone to Black Hawk and 5 hours 41 mins to go from Avon to Black Hawk.