Distance between cities › USA › South Dakota › Reliance, SD › Distance from Reliance to Oldham Book Hotels

Distance from Reliance, SD to Oldham, SD

Distance

159 mi

Time

2 hours 59 mins

Gas Cost

$14 - $28

There are 116.50 miles from Reliance to Oldham in northeast direction and 159 miles (255.89 kilometers) by car, following the I-90 route.

Reliance and Oldham are 2 hours 59 mins far apart, if you drive non-stop .

This is the fastest route from Reliance, SD to Oldham, SD. The halfway point is Mount Vernon, SD.

Reliance, SD and Oldham, SD are in the same time zone (CDT). Current time in both locations is 10:19 am.

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Lowest Price Rental Cars in Reliance, SD

Planning on renting a car to go from Reliance, SD to Oldham, SD? Here there are some offers to rent a car in Reliance, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Reliance »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 6.40 gallons of gas to cover the route between Reliance, SD and Oldham, SD.

The estimated cost of gas to go from Reliance to Oldham is $20.05.

During the route, an average car will release 125.32 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 $3.14 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Reliance, SD and Oldham, SD

If you want to meet halfway between Reliance, SD and Oldham, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.694771 and -98.198830, or 43º 41' 41.1756" N, 98º 11' 55.788" W. This location is 79.63 miles away from Reliance, SD and Oldham, SD and it would take approximately 1 hour 29 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Mount Vernon, SD, situated 73 miles from Reliance, SD and 89 miles from Oldham, SD. It would take 1 hour to go from Reliance to Mount Vernon and 2 hours 9 mins to go from Oldham to Mount Vernon.