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

Distance from Harrison, SD to Tri Cities, WA

Distance

1,274 mi

Time

22 hours 6 mins

Gas Cost

$119 - $231

There are 1,029.33 miles from Harrison to Tri Cities in west direction and 1,274 miles (2,050.30 kilometers) by car, following the I-90 route.

Harrison and Tri Cities are 22 hours 6 mins far apart, if you drive non-stop .

This is the fastest route from Harrison, SD to Tri Cities, WA.

Please note the time difference between Harrison, SD and Tri Cities, WA is 2 hours. The current time in Harrison is 11:30 am and the current time in Tri Cities is 9:30 am.

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Lowest Price Rental Cars in Harrison, SD

Planning on renting a car to go from Harrison, SD to Tri Cities, WA? 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 51.16 gallons of gas to cover the route between Harrison, SD and Tri Cities, WA.

The estimated cost of gas to go from Harrison to Tri Cities is $166.89.

During the route, an average car will release 1,002.39 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 Tri Cities, WA

If you want to meet halfway between Harrison, SD and Tri Cities, WA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.644143 and -109.24095, or 45º 38' 38.9148" N, 109º 14' 27.42" W. This location is 636.98 miles away from Harrison, SD and Tri Cities, WA and it would take approximately 11 hours 3 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Columbus, MT, situated 634 miles from Harrison, SD and 642 miles from Tri Cities, WA. It would take 11 hours 10 mins to go from Harrison to Columbus and 11 hours 1 min to go from Tri Cities to Columbus.