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

Distance from Downey, ID to Bison, SD

Distance

810 mi

Time

15 hours 15 mins

Gas Cost

$75 - $147

There are 525.37 miles from Downey to Bison in northeast direction and 810 miles (1,303.57 kilometers) by car, following the I-90 and US-191 route.

Downey and Bison are 15 hours 15 mins far apart, if you drive non-stop .

This is the fastest route from Downey, ID to Bison, SD.

Downey, ID and Bison, SD are in the same time zone (MDT). Current time in both locations is 10:50 am.

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Lowest Price Rental Cars in Downey, ID

Planning on renting a car to go from Downey, ID to Bison, SD? 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 32.53 gallons of gas to cover the route between Downey, ID and Bison, SD.

The estimated cost of gas to go from Downey to Bison is $106.11.

During the route, an average car will release 637.29 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 Bison, SD

If you want to meet halfway between Downey, ID and Bison, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.748999 and -108.568842, or 45º 44' 56.3964" N, 108º 34' 7.8312" W. This location is 404.98 miles away from Downey, ID and Bison, SD and it would take approximately 7 hours 37 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest and also the major city is Billings, MT, situated 428.27 miles from Downey, ID and 383 miles from Bison, SD. It would take 7 hours 53 mins to go from Downey to Billings and 7 hours 26 mins to go from Bison to Billings.