Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to McCarran International Airport Book Hotels

Distance from Dewey, SD to LAS Airport

Distance

994 mi

Time

18 hours 7 mins

Gas Cost

$93 - $180

Helpful Inaccurate

There are 781.47 miles from Dewey to McCarran International Airport (LAS) in southwest direction and 994 miles (1,599.69 kilometers) by car, following the I-15 route.

Dewey and LAS Airport are 18 hours 7 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to LAS Airport. The halfway point is Little America, WY.

Please note the time difference between Dewey, SD and LAS Airport is 1 hour. The current time in Dewey is 3:05 am and the current time in LAS Airport is 2:05 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to LAS Airport? Here there are some offers to rent a car in Dewey, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dewey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 39.90 gallons of gas to cover the route between Dewey, SD and LAS Airport.

The estimated cost of gas to go from Dewey to LAS Airport is $130.15.

During the route, an average car will release 781.72 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 Dewey, SD and LAS Airport

If you want to meet halfway between Dewey, SD and LAS Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.540733 and -109.762276, or 41º 32' 26.6388" N, 109º 45' 44.1936" W. This location is 496.75 miles away from Dewey, SD and LAS Airport and it would take approximately 9 hours 3 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Little America, WY, situated 516 miles from Dewey, SD and 548 miles from LAS Airport. It would take 7 hours 35 mins to go from Dewey to Little America and 8 hours 33 mins to go from LAS to Little America.