Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to Lyons Book Hotels

Distance from Dewey, SD to Lyons, NE

Distance

556 mi

Time

9 hours 54 mins

Gas Cost

$52 - $101

There are 399.37 miles from Dewey to Lyons in southeast direction and 556 miles (894.80 kilometers) by car, following the I-90 and US-14 route.

Dewey and Lyons are 9 hours 54 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Lyons, NE.

Please note the time difference between Dewey, SD and Lyons, NE is 1 hour. The current time in Dewey is 4:27 am and the current time in Lyons is 5:27 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Dewey, SD to Lyons, NE:

Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Lyons, NE? 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 22.34 gallons of gas to cover the route between Dewey, SD and Lyons, NE.

The estimated cost of gas to go from Dewey to Lyons is $72.87.

During the route, an average car will release 437.68 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 Lyons, NE

If you want to meet halfway between Dewey, SD and Lyons, NE or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.876781 and -99.800944, or 43º 52' 36.4116" N, 99º 48' 3.3984" W. This location is 278.13 miles away from Dewey, SD and Lyons, NE and it would take approximately 4 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 Kennebec, SD, situated 269 miles from Dewey, SD and 289 miles from Lyons, NE. It would take 5 hours 7 mins to go from Dewey to Kennebec and 4 hours 51 mins to go from Lyons to Kennebec.