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

Distance from Harrison, SD to Lothair, MT

Distance

915 mi

Time

16 hours 24 mins

Gas Cost

$85 - $166

There are 701.46 miles from Harrison to Lothair in northwest direction and 915 miles (1,472.55 kilometers) by car, following the I-90 route.

Harrison and Lothair are 16 hours 24 mins far apart, if you drive non-stop .

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

Please note the time difference between Harrison, SD and Lothair, MT is 1 hour. The current time in Harrison is 9:43 am and the current time in Lothair is 8:43 am.

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Lowest Price Rental Cars in Harrison, SD

Planning on renting a car to go from Harrison, SD to Lothair, 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 36.75 gallons of gas to cover the route between Harrison, SD and Lothair, MT.

The estimated cost of gas to go from Harrison to Lothair is $119.86.

During the route, an average car will release 719.91 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 Lothair, MT

If you want to meet halfway between Harrison, SD and Lothair, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.550681 and -105.936715, or 45º 33' 2.4516" N, 105º 56' 12.174" W. This location is 457.48 miles away from Harrison, SD and Lothair, MT and it would take approximately 8 hours 12 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Sonnette, MT, situated 458 miles from Harrison, SD and 479 miles from Lothair, MT. It would take 8 hours 32 mins to go from Harrison to Sonnette and 9 hours 15 mins to go from Lothair to Sonnette.