Distance between cities › USA › South Dakota › Custer, SD › Distance from Custer to Covington Book Hotels

Distance from Custer, SD to Covington, WA

Distance

1,156 mi

Time

20 hours 21 mins

Gas Cost

$106 - $206

There are 927.09 miles from Custer to Covington in northwest direction and 1,156 miles (1,860.40 kilometers) by car, following the I-90 route.

Custer and Covington are 20 hours 21 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Covington, WA. The halfway point is Ramsay, MT.

Please note the time difference between Custer, SD and Covington, WA is 1 hour. The current time in Custer is 11:49 pm and the current time in Covington is 10:49 pm.

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Lowest Price Rental Cars in Custer, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Custer »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 46.43 gallons of gas to cover the route between Custer, SD and Covington, WA.

The estimated cost of gas to go from Custer to Covington is $148.75.

During the route, an average car will release 909.60 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 Custer, SD and Covington, WA

If you want to meet halfway between Custer, SD and Covington, WA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.010460 and -112.640289, or 46º 0' 37.656" N, 112º 38' 25.0404" W. This location is 578.02 miles away from Custer, SD and Covington, WA and it would take approximately 10 hours 10 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Ramsay, MT, situated 607 miles from Custer, SD and 579 miles from Covington, WA. It would take 8 hours 55 mins to go from Custer to Ramsay and 8 hours 19 mins to go from Covington to Ramsay.