Sioux Falls to Cody Road Trip: Ultimate Plains to Peaks Guide

The drive from Sioux Falls, South Dakota to Cody, Wyoming spans roughly 560 miles and takes about 8.5 hours without stops. But no traveler should rush this route: it crosses the Missouri River near Chamberlain, climbs through the Badlands and Black Hills, and ends at the gateway to Yellowstone.

One specific detail: the highway you'll travel most of the way is I-90 West, which follows the original route of the Chicago, Milwaukee, St. Paul and Pacific Railroad—known as the 'Milwaukee Road.' The final leg, US-14, passes through the Bighorn Basin, a high desert that once formed the floor of an ancient sea.

This guide covers everything you need: best stops Sioux Falls, SD to Cody, WY, how long to drive Sioux Falls, SD to Cody, WY, is it worth driving Sioux Falls, SD to Cody, WY, and things to do between Sioux Falls, SD and Cody, WY. For more on finding spontaneous discoveries, read how to find the best stops and hidden gems between cities.

Interstate 90 from Sioux Falls to the Badlands is immaculate: wide shoulders, clear signage, and rest stops every 30 miles. Exit 72 near Mitchell is known for sudden crosswinds—reduce speed if driving a high-profile vehicle.

Your vehicle's fuel economy matters: the route includes long stretches (particularly from Rapid City to Cody via I-90 and US-14) with no services for 70+ miles. Fill up in Wall, SD (Exit 110) and Buffalo, WY (I-90 Exit 58). Gas prices trend higher in tourist towns like Keystone and Cody.

Road quality is excellent on primary highways, but be aware of construction on I-90 near Spearfish (2025 season). US-14 between Sheridan and Cody is a two-lane road with passing lanes; avoid night driving as wildlife (deer, pronghorn) are common.

• Rest areas: Chamberlain (mile 264), Wall (mile 110), and a scenic overlook at Sundance, WY (mile 187).
• Toll roads: None on this route.
• Cell coverage: Strong from Sioux Falls to Wall; spotty on US-14 in the Bighorns.

The entire route is safe for family travel. However, summer thunderstorms can cause flash flooding in the Badlands: check weather alerts at Park entrances. For children, key stops are the Prehistoric Indian Village (Mitchell), Cosmos Mystery Area (Rapid City), and the Cody Firearms Museum.

Pet-friendly framework: many hotels along I-90 accept pets (ask at Best Western or Motel 6). National parks require pets on leashes; they are not allowed on trails in Badlands or Custer State Park. Several rest areas have fenced pet relief areas.

Fatigue management: plan rest stops every 2 hours. The most scenic rest stop is the one at the Missouri River overlook (Chamberlain, mile 264). On US-14, the Shell Creek Rest Area (mile 15 east of Greybull) has picnic tables and views of the Bighorns.

• Hidden off-route spots: the Minuteman Missile National Historic Site (exit 116, I-90), the Mammoth Site in Hot Springs (20 miles south of Custer), and the Bighorn Medicine Wheel (NE of Lovell, dirt road).
• Family attractions: Corn Palace (Mitchell), Reptile Gardens (Rapid City), Storybook Island (Rapid City).

The Badlands National Park offers dramatic eroded spires and prairie dog towns. Stop at the Ben Reifel Visitor Center for trail maps. Further west, Mount Rushmore and Custer State Park reveal granite peaks and free-roaming bison. The Needles Highway (SD 87) is a must if you have time—a narrow road with hairpin turns and granite spires.

In Cody, the Buffalo Bill Center of the West is a museum complex covering Native American art, firearms, and natural history. The nightly rodeo (June-August) is a genuine local spectacle.

For local commerce, Wall Drug in Wall, SD is a sprawling emporium of souvenirs and the famous free ice water. In Custer, the Black Hills National Forest hosts artisan markets. Cody's Main Street has galleries and a Western-themed shopping district.

• Natural landscapes: Badlands, Custer State Park, Bighorn Mountains, Shoshone River Canyon.
• Local food: buffalo burgers in Wall, Indian tacos at the Heritage Center in Pine Ridge, and Wyoming steaks in Cody.