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

Distance from Dewey, SD to Saint Clair, PA

Distance

1,672 mi

Time

1 day 6 hours

Gas Cost

$156 - $303

There are 1,433.48 miles from Dewey to Saint Clair in east direction and 1,672 miles (2,690.82 kilometers) by car, following the I-90 and US-14 route.

Dewey and Saint Clair are 1 day 6 hours far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Saint Clair, PA.

Please note the time difference between Dewey, SD and Saint Clair, PA is 2 hours. The current time in Dewey is 7:42 am and the current time in Saint Clair is 9:42 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Saint Clair, PA? 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 67.15 gallons of gas to cover the route between Dewey, SD and Saint Clair, PA.

The estimated cost of gas to go from Dewey to Saint Clair is $219.04.

During the route, an average car will release 1,315.61 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 Saint Clair, PA

If you want to meet halfway between Dewey, SD and Saint Clair, PA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.560297 and -89.723294, or 43º 33' 37.0692" N, 89º 43' 23.8584" W. This location is 836.02 miles away from Dewey, SD and Saint Clair, PA and it would take approximately 15 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 Lake Delton, WI, situated 809 miles from Dewey, SD and 863 miles from Saint Clair, PA. It would take 14 hours 26 mins to go from Dewey to Lake Delton and 16 hours 4 mins to go from Saint Clair to Lake Delton.