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

Distance from Custer, SD to Star Valley, AZ

Distance

1,135 mi

Time

20 hours 14 mins

Gas Cost

$106 - $206

There are 774.42 miles from Custer to Star Valley in southwest direction and 1,135 miles (1,826.61 kilometers) by car, following the I-25 route.

Custer and Star Valley are 20 hours 14 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Star Valley, AZ. The halfway point is Raton, NM.

Please note the time difference between Custer, SD and Star Valley, AZ is 1 hour. The current time in Custer is 11:20 pm and the current time in Star Valley is 10:20 pm.

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Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Star Valley, AZ? 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 45.58 gallons of gas to cover the route between Custer, SD and Star Valley, AZ.

The estimated cost of gas to go from Custer to Star Valley is $148.67.

During the route, an average car will release 892.93 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 Custer, SD and Star Valley, AZ

If you want to meet halfway between Custer, SD and Star Valley, AZ or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 36.904934 and -104.425003, or 36º 54' 17.7624" N, 104º 25' 30.0108" W. This location is 567.42 miles away from Custer, SD and Star Valley, AZ and it would take approximately 10 hours 7 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Raton, NM, situated 583 miles from Custer, SD and 551 miles from Star Valley, AZ. It would take 9 hours to go from Custer to Raton and 8 hours 17 mins to go from Star Valley to Raton.