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

Distance from Harrison, SD to Alstead, NH

Distance

1,601 mi

Time

1 day 6 hours

Gas Cost

$147 - $285

There are 1,310.67 miles from Harrison to Alstead in east direction and 1,601 miles (2,576.56 kilometers) by car, following the I-90 route.

Harrison and Alstead are 1 day 6 hours far apart, if you drive non-stop .

This is the fastest route from Harrison, SD to Alstead, NH. The halfway point is Bristol, IN.

Please note the time difference between Harrison, SD and Alstead, NH is 1 hour. The current time in Harrison is 10:08 pm and the current time in Alstead is 11:08 pm.

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Lowest Price Rental Cars in Harrison, SD

Planning on renting a car to go from Harrison, SD to Alstead, NH? 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 64.28 gallons of gas to cover the route between Harrison, SD and Alstead, NH.

The estimated cost of gas to go from Harrison to Alstead is $205.95.

During the route, an average car will release 1,259.34 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Harrison, SD and Alstead, NH

If you want to meet halfway between Harrison, SD and Alstead, NH or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.711845 and -85.836281, or 41º 42' 42.642" N, 85º 50' 10.6116" W. This location is 800.26 miles away from Harrison, SD and Alstead, NH and it would take approximately 15 hours 17 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Bristol, IN, situated 800 miles from Harrison, SD and 805 miles from Alstead, NH. It would take 11 hours 54 mins to go from Harrison to Bristol and 13 hours 2 mins to go from Alstead to Bristol.

Major City Closest to Halfway Point

The major city closest to the halfway point between Harrison, SD and Alstead, NH is South Bend, IN, situated 776 miles from Harrison, SD and 830 miles from Alstead, NH. It would take 11 hours 35 mins to go from Harrison to and 13 hours 26 mins to go from Alstead to South Bend.