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

Distance from Custer, SD to Alva, OK

Distance

698 mi

Time

14 hours 8 mins

Gas Cost

$65 - $126

There are 546.51 miles from Custer to Alva in southeast direction and 698 miles (1,123.32 kilometers) by car, following the I-80 route.

Custer and Alva are 14 hours 8 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Alva, OK. The halfway point is Genoa, CO.

Please note the time difference between Custer, SD and Alva, OK is 1 hour. The current time in Custer is 1:20 am and the current time in Alva is 2:20 am.

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Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Alva, OK? 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 28.03 gallons of gas to cover the route between Custer, SD and Alva, OK.

The estimated cost of gas to go from Custer to Alva is $91.43.

During the route, an average car will release 549.15 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 Alva, OK

If you want to meet halfway between Custer, SD and Alva, OK or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.279079 and -103.568573, or 39º 16' 44.6844" N, 103º 34' 6.8628" W. This location is 348.97 miles away from Custer, SD and Alva, OK and it would take approximately 7 hours 4 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Genoa, CO, situated 457 miles from Custer, SD and 421 miles from Alva, OK. It would take 6 hours 51 mins to go from Custer to Genoa and 7 hours 21 mins to go from Alva to Genoa.