(source: nps.gov)
Trip Planning · From Billings
Take I-90 west through Bozeman and Big Sky to your Island Park basecamp (5.5 hrs, year-round), or detour over the legendary Beartooth Highway in summer for one of America's most scenic drives.
Year-round route via Bozeman and Big Sky — about 350 miles from Billings to Island Park. Each marker is a fuel/lunch/scenic stop.
Direct from DEN, SEA, MSP, SLC, DFW, ORD on Delta, United, Alaska, American. Useful when BZN fares spike.
2 hr to Island Park. The default Yellowstone airport — usually the right pick over BIL for park trips.
Lone Peak, Gallatin River, Town Center — perfect halfway stop.
Open dates, what to see, and how to plan it as a Billings detour.
The reliable all-season route: I-90 West to Bozeman → US-191 South through Big Sky → US-20 West into Island Park. About 350 miles, doable in a long single day.
I-90 West through Big Timber and Livingston. Easy interstate driving — make miles. Lunch in Bozeman or Livingston.
Exit I-90 onto US-191 South. The Gallatin Canyon begins immediately — slow down. Stop in Big Sky Town Center.
Continue south through the rest of Gallatin Canyon to West Yellowstone, then US-20 west across Henry's Lake flats to the cabin.
From late May through mid-October, the Beartooth Highway (US-212) is the most spectacular way into Yellowstone from Billings. It tops out at 10,947 ft, drops into the Northeast Entrance, and crosses Lamar Valley — the best wildlife viewing in the park.
Late May (Memorial Day target) through mid-October — exact dates depend on snowpack. Check NPS road status before you commit.
Drive Billings → Red Lodge → Beartooth Pass → Cooke City → Northeast Entrance → Lamar Valley. Exit at the West Entrance later, cabin via Island Park.
Plan a full day — Billings to Lamar Valley is 4 hrs without stops, and you'll want to stop a lot. Add 2.5 hrs across Yellowstone to reach the cabin.
See our complete Beartooth Highway guide for stops, photo spots, and weather tips.
Once you've made the long Billings drive, you don't want to commute farther daily. Island Park puts you 30 minutes from the West Entrance and 90 from Grand Teton — no more long Montana legs.
West Entrance is a quick US-20 drive — be at Old Faithful by 8 AM.
Easy day trip to Jackson, Snake River, and Mormon Row.
Cabin pricing is a fraction of summer Bozeman or Big Sky hotels.