Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to Longview Book Hotels

Distance from Dewey, SD to Longview, WA

Distance

1,244 mi

Time

22 hours 25 mins

Gas Cost

$116 - $225

There are 940.90 miles from Dewey to Longview in west direction and 1,244 miles (2,002.02 kilometers) by car, following the I-90 route.

Dewey and Longview are 22 hours 25 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Longview, WA.

Please note the time difference between Dewey, SD and Longview, WA is 1 hour. The current time in Dewey is 6:03 am and the current time in Longview is 5:03 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Longview, WA? Here there are some offers to rent a car in Dewey, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dewey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 49.94 gallons of gas to cover the route between Dewey, SD and Longview, WA.

The estimated cost of gas to go from Dewey to Longview is $162.91.

During the route, an average car will release 978.47 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 Dewey, SD and Longview, WA

If you want to meet halfway between Dewey, SD and Longview, WA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.702448 and -113.24459, or 46º 42' 8.8128" N, 113º 14' 40.524" W. This location is 621.78 miles away from Dewey, SD and Longview, WA and it would take approximately 11 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 Drummond, MT, situated 631 miles from Dewey, SD and 613 miles from Longview, WA. It would take 11 hours 9 mins to go from Dewey to Drummond and 11 hours 18 mins to go from Longview to Drummond.