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

Distance from Custer, SD to Thayne, WY

Distance

549 mi

Time

10 hours 55 mins

Gas Cost

$50 - $98

There are 376.42 miles from Custer to Thayne in west direction and 549 miles (883.53 kilometers) by car, following the US-20 and US-26 route.

Custer and Thayne are 10 hours 55 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Thayne, WY. The halfway point is Elk Mountain, WY.

Custer, SD and Thayne, WY are in the same time zone (MDT). Current time in both locations is 11:46 pm.

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Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Thayne, WY? 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 22.06 gallons of gas to cover the route between Custer, SD and Thayne, WY.

The estimated cost of gas to go from Custer to Thayne is $70.69.

During the route, an average car will release 432.27 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 Thayne, WY

If you want to meet halfway between Custer, SD and Thayne, WY or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.738785 and -106.481934, or 41º 44' 19.626" N, 106º 28' 54.9624" W. This location is 274.69 miles away from Custer, SD and Thayne, WY and it would take approximately 5 hours 27 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Elk Mountain, WY, situated 370 miles from Custer, SD and 357 miles from Thayne, WY. It would take 5 hours 35 mins to go from Custer to Elk Mountain and 5 hours 31 mins to go from Thayne to Elk Mountain.