Distance between cities › USA › Illinois › Mason, IL › Distance from Mason to Armour Book Hotels

Distance from Mason, IL to Armour, SD

Distance

782 mi

Time

14 hours 27 mins

Gas Cost

$73 - $142

There are 588.48 miles from Mason to Armour in northwest direction and 782 miles (1,258.51 kilometers) by car, following the I-29 route.

Mason and Armour are 14 hours 27 mins far apart, if you drive non-stop .

This is the fastest route from Mason, IL to Armour, SD. The halfway point is Platte Woods, MO.

Mason, IL and Armour, SD are in the same time zone (CDT). Current time in both locations is 9:22 pm.

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Lowest Price Rental Cars in Mason, IL

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mason »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 31.40 gallons of gas to cover the route between Mason, IL and Armour, SD.

The estimated cost of gas to go from Mason to Armour is $102.43.

During the route, an average car will release 615.23 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 Mason, IL and Armour, SD

If you want to meet halfway between Mason, IL and Armour, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.257111 and -94.660637, or 39º 15' 25.5996" N, 94º 39' 38.2932" W. This location is 390.95 miles away from Mason, IL and Armour, SD and it would take approximately 7 hours 13 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Platte Woods, MO, situated 360 miles from Mason, IL and 405 miles from Armour, SD. It would take 5 hours 32 mins to go from Mason to Platte Woods and 6 hours 30 mins to go from Armour to Platte Woods.

Major City Closest to Halfway Point

The major city closest to the halfway point between Mason, IL and Armour, SD is Kansas City, MO, situated 348 miles from Mason, IL and 415 miles from Armour, SD. It would take 5 hours 19 mins to go from Mason to and 6 hours 43 mins to go from Armour to Kansas City.