Distance between cities › USA › Missouri › Williamstown, MO › Distance from Williamstown to Onaka Book Hotels

Distance from Williamstown, MO to Onaka, SD

Distance

683 mi

Time

13 hours 51 mins

Gas Cost

$64 - $124

There are 517.86 miles from Williamstown to Onaka in northwest direction and 683 miles (1,099.18 kilometers) by car, following the I-29 route.

Williamstown and Onaka are 13 hours 51 mins far apart, if you drive non-stop .

This is the fastest route from Williamstown, MO to Onaka, SD.

Williamstown, MO and Onaka, SD are in the same time zone (CDT). Current time in both locations is 3:12 pm.

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Lowest Price Rental Cars in Williamstown, MO

Planning on renting a car to go from Williamstown, MO to Onaka, SD? Here there are some offers to rent a car in Williamstown, MO

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williamstown »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 27.45 gallons of gas to cover the route between Williamstown, MO and Onaka, SD.

The estimated cost of gas to go from Williamstown to Onaka is $89.53.

During the route, an average car will release 537.75 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 Williamstown, MO and Onaka, SD

If you want to meet halfway between Williamstown, MO and Onaka, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.031542 and -96.136086, or 42º 1' 53.5512" N, 96º 8' 9.9096" W. This location is 341.72 miles away from Williamstown, MO and Onaka, SD and it would take approximately 6 hours 55 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Onawa, IA, situated 337 miles from Williamstown, MO and 350 miles from Onaka, SD. It would take 7 hours 1 min to go from Williamstown to Onawa and 6 hours 56 mins to go from Onaka to Onawa.