Distance between cities › USA › Idaho › Downey, ID › Distance from Downey to Augusta Book Hotels

Distance from Downey, ID to Augusta, MT

Distance

433 mi

Time

7 hours 18 mins

Gas Cost

$40 - $78

There are 350.15 miles from Downey to Augusta in north direction and 433 miles (696.85 kilometers) by car, following the I-15 and US-91 route.

Downey and Augusta are 7 hours 18 mins far apart, if you drive non-stop .

This is the fastest route from Downey, ID to Augusta, MT.

Downey, ID and Augusta, MT are in the same time zone (MDT). Current time in both locations is 10:55 am.

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Lowest Price Rental Cars in Downey, ID

Planning on renting a car to go from Downey, ID to Augusta, MT? Here there are some offers to rent a car in Downey, ID

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Downey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 17.38 gallons of gas to cover the route between Downey, ID and Augusta, MT.

The estimated cost of gas to go from Downey to Augusta is $56.69.

During the route, an average car will release 340.49 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 Downey, ID and Augusta, MT

If you want to meet halfway between Downey, ID and Augusta, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.108855 and -112.765688, or 45º 6' 31.878" N, 112º 45' 56.4768" W. This location is 216.37 miles away from Downey, ID and Augusta, MT and it would take approximately 3 hours 39 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Dillon, MT, situated 230 miles from Downey, ID and 204 miles from Augusta, MT. It would take 3 hours 42 mins to go from Downey to Dillon and 3 hours 41 mins to go from Augusta to Dillon.