Distance between cities › USA › South Dakota › Webster, SD › Distance from Webster to Alsey Book Hotels

Distance from Webster, SD to Alsey, IL

Distance

713 mi

Time

12 hours 49 mins

Gas Cost

$66 - $129

There are 537.67 miles from Webster to Alsey in southeast direction and 713 miles (1,147.46 kilometers) by car, following the I-29 and US-81 route.

Webster and Alsey are 12 hours 49 mins far apart, if you drive non-stop .

This is the fastest route from Webster, SD to Alsey, IL. The halfway point is Watson, MO.

Webster, SD and Alsey, IL are in the same time zone (CDT). Current time in both locations is 10:01 am.

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Lowest Price Rental Cars in Webster, SD

Planning on renting a car to go from Webster, SD to Alsey, IL? Here there are some offers to rent a car in Webster, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Webster »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 28.62 gallons of gas to cover the route between Webster, SD and Alsey, IL.

The estimated cost of gas to go from Webster to Alsey is $93.35.

During the route, an average car will release 560.69 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 Webster, SD and Alsey, IL

If you want to meet halfway between Webster, SD and Alsey, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.534580 and -95.667961, or 40º 32' 4.488" N, 95º 40' 4.6596" W. This location is 356.30 miles away from Webster, SD and Alsey, IL and it would take approximately 6 hours 24 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Watson, MO, situated 389 miles from Webster, SD and 331 miles from Alsey, IL. It would take 6 hours to go from Webster to Watson and 6 hours 19 mins to go from Alsey to Watson.