Distance between cities › USA › South Dakota › Harrison, SD › Distance from Harrison to Pray Book Hotels

Distance from Harrison, SD to Pray, MT

Distance

729 mi

Time

12 hours 46 mins

Gas Cost

$68 - $132

There are 614.27 miles from Harrison to Pray in northwest direction and 729 miles (1,173.21 kilometers) by car, following the I-90 route.

Harrison and Pray are 12 hours 46 mins far apart, if you drive non-stop .

This is the fastest route from Harrison, SD to Pray, MT.

Please note the time difference between Harrison, SD and Pray, MT is 1 hour. The current time in Harrison is 9:39 am and the current time in Pray is 8:39 am.

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Lowest Price Rental Cars in Harrison, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Harrison »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 29.28 gallons of gas to cover the route between Harrison, SD and Pray, MT.

The estimated cost of gas to go from Harrison to Pray is $95.51.

During the route, an average car will release 573.65 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 Harrison, SD and Pray, MT

If you want to meet halfway between Harrison, SD and Pray, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.035666 and -104.429522, or 45º 2' 8.3976" N, 104º 25' 46.2792" W. This location is 364.53 miles away from Harrison, SD and Pray, MT and it would take approximately 6 hours 23 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Alzada, MT, situated 368 miles from Harrison, SD and 361 miles from Pray, MT. It would take 6 hours 21 mins to go from Harrison to Alzada and 6 hours 26 mins to go from Pray to Alzada.