Distance between cities › USA › Oregon › Williams, OR › Distance from Williams to Allen Book Hotels

Distance from Williams, OR to Allen, SD

Distance

1,535 mi

Time

1 day 3 hours

Gas Cost

$140 - $273

There are 1,082.76 miles from Williams to Allen in east direction and 1,535 miles (2,470.34 kilometers) by car, following the I-80 route.

Williams and Allen are 1 day 3 hours far apart, if you drive non-stop .

This is the fastest route from Williams, OR to Allen, SD. The halfway point is Grantsville, UT.

Please note the time difference between Williams, OR and Allen, SD is 1 hour. The current time in Williams is 2:12 pm and the current time in Allen is 3:12 pm.

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Lowest Price Rental Cars in Williams, OR

Planning on renting a car to go from Williams, OR to Allen, SD? Here there are some offers to rent a car in Williams, OR

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williams »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 61.63 gallons of gas to cover the route between Williams, OR and Allen, SD.

The estimated cost of gas to go from Williams to Allen is $197.47.

During the route, an average car will release 1,207.53 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 Williams, OR and Allen, SD

If you want to meet halfway between Williams, OR and Allen, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.684799 and -112.425079, or 40º 41' 5.2764" N, 112º 25' 30.2844" W. This location is 767.34 miles away from Williams, OR and Allen, SD and it would take approximately 13 hours 57 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Grantsville, UT, situated 824 miles from Williams, OR and 794 miles from Allen, SD. It would take 13 hours 6 mins to go from Williams to Grantsville and 12 hours 17 mins to go from Allen to Grantsville.

Major City Closest to Halfway Point

The major city closest to the halfway point between Williams, OR and Allen, SD is Salt Lake City, UT, situated 850 miles from Williams, OR and 760 miles from Allen, SD. It would take 13 hours 25 mins to go from Williams to and 11 hours 46 mins to go from Allen to Salt Lake City.