Distance between cities › USA › South Dakota › Selby, SD › Distance from Selby to Fallon Book Hotels

Distance from Selby, SD to Fallon, MT

Distance

345 mi

Time

5 hours 52 mins

Gas Cost

$32 - $62

There are 260.16 miles from Selby to Fallon in northwest direction and 345 miles (555.22 kilometers) by car, following the US-83 route.

Selby and Fallon are 5 hours 52 mins far apart, if you drive non-stop .

This is the fastest route from Selby, SD to Fallon, MT.

Please note the time difference between Selby, SD and Fallon, MT is 1 hour. The current time in Selby is 8:52 am and the current time in Fallon is 7:52 am.

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Lowest Price Rental Cars in Selby, SD

Planning on renting a car to go from Selby, SD to Fallon, MT? Here there are some offers to rent a car in Selby, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Selby »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 13.84 gallons of gas to cover the route between Selby, SD and Fallon, MT.

The estimated cost of gas to go from Selby to Fallon is $45.14.

During the route, an average car will release 271.14 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 Selby, SD and Fallon, MT

If you want to meet halfway between Selby, SD and Fallon, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.863199 and -102.067275, or 46º 51' 47.5164" N, 102º 4' 2.19" W. This location is 172.30 miles away from Selby, SD and Fallon, MT and it would take approximately 2 hours 56 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Hebron, ND, situated 183 miles from Selby, SD and 165 miles from Fallon, MT. It would take 3 hours 22 mins to go from Selby to Hebron and 2 hours 44 mins to go from Fallon to Hebron.