Distance between cities › USA › Washington › Carson, WA › Distance from Carson to Plains Book Hotels

Distance from Carson, WA to Plains, MT

Distance

451 mi

Time

8 hours 53 mins

Gas Cost

$42 - $82

There are 350.30 miles from Carson to Plains in northeast direction and 451 miles (725.81 kilometers) by car, following the I-90 and US-2 and US-395 route.

Carson and Plains are 8 hours 53 mins far apart, if you drive non-stop .

This is the fastest route from Carson, WA to Plains, MT.

Please note the time difference between Carson, WA and Plains, MT is 1 hour. The current time in Carson is 7:20 pm and the current time in Plains is 8:20 pm.

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Lowest Price Rental Cars in Carson, WA

Planning on renting a car to go from Carson, WA to Plains, MT? Here there are some offers to rent a car in Carson, WA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Carson »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 18.11 gallons of gas to cover the route between Carson, WA and Plains, MT.

The estimated cost of gas to go from Carson to Plains is $59.09.

During the route, an average car will release 354.88 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 Carson, WA and Plains, MT

If you want to meet halfway between Carson, WA and Plains, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.061004 and -118.412616, or 47º 3' 39.6144" N, 118º 24' 45.4176" W. This location is 225.51 miles away from Carson, WA and Plains, MT and it would take approximately 4 hours 26 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Ritzville, WA, situated 236 miles from Carson, WA and 215 miles from Plains, MT. It would take 4 hours 44 mins to go from Carson to Ritzville and 4 hours 13 mins to go from Plains to Ritzville.