Glacier National Park draws travelers from across the country each summer for one reason above all others: Going-to-the-Sun Road, the 50-mile alpine route that climbs over Logan Pass and connects the park’s west and east sides. Planning a Glacier National Park road trip requires attention to timing, permits, and lodging that book out months in advance. The following guide lays out what visitors need to know before they go.
Best Time to Visit
Going-to-the-Sun Road is a seasonal route. Snow typically closes the highest section near Logan Pass from mid-October through early June, though the exact opening date shifts from year to year depending on snowpack. The National Park Service does not commit to a fixed date and instead clears the road in stages, updating its website as plowing progresses.
Most travelers aim for July through early September, when the entire road is reliably open and services on both sides of the park are running at full capacity. Late June can be a gamble, since portions of the road near the pass sometimes remain closed. September offers thinner crowds and cooler weather, and by late September larch trees in the Two Medicine and Autumn Creek areas turn a deep gold, which draws its own following of photographers.
Winter visits are possible but limited. The road beyond the park entrances closes to vehicles, though sections remain open to cross-country skiers and snowshoers. Anyone planning a winter trip should treat it as a different kind of visit entirely, not a scaled-down version of the summer drive.
Weekday Versus Weekend Timing
Parking at the most popular trailheads, including Logan Pass, Avalanche, and The Loop, fills by mid-morning during peak season regardless of the day of the week. Arriving before 8 a.m. or after 4 p.m. improves the odds of finding a spot. Visitors without a fixed schedule should note that traffic through West Glacier and Apgar tends to be heaviest on weekends, when day-trippers from Kalispell and Whitefish add to park visitation.
Vehicle Reservations and Permits
In recent years, Glacier has required a vehicle reservation to enter the Going-to-the-Sun Road corridor and other high-traffic areas during peak summer months. The reservation system has changed in scope and dates from year to year, so travelers should check the park’s official website in the months before their trip rather than rely on past requirements. Reservations, when in effect, are typically released in blocks months ahead of the summer season and again as a smaller batch closer to the travel date.
A reservation is generally not required for visitors already holding a lodging or camping reservation inside the reservation area, nor for those entering before early morning hours. Because rules have shifted, the safest approach is to confirm current requirements directly with the park before finalizing an itinerary.
Backcountry camping requires a separate permit, issued through the park’s wilderness permit system. Popular backcountry sites near Sperry Chalet and Fifty Mountain fill quickly once the advance permit lottery opens in the spring.
Suggested Itinerary
A Glacier National Park road trip can be structured around three to five days, with Going-to-the-Sun Road as the spine of the trip and side excursions to the North Fork and Two Medicine areas for travelers with extra time.
Day One: West Glacier and Lake McDonald
Most visitors enter through West Glacier and spend the first day acclimating along Lake McDonald, the park’s largest lake. The Trail of the Cedars, a short boardwalk loop near Avalanche Creek, offers an easy introduction to the park’s old-growth forest. Boat tours depart from the Lake McDonald Lodge dock for visitors who prefer to see the lake from the water rather than the shoreline pullouts.
Day Two: Going-to-the-Sun Road to Logan Pass
The drive from Apgar to Logan Pass climbs roughly 3,000 feet over about 32 miles, passing The Loop, Bird Woman Falls overlook, and the Weeping Wall, where snowmelt runs directly over the roadway earlier in the season. The Logan Pass Visitor Center sits at the highest point on the road, 6,646 feet, and serves as the trailhead for the Hidden Lake Overlook trail, a 2.7-mile round trip that frequently offers views of mountain goats near the boardwalk.
Day Three: St. Mary and the East Side
Descending the east side of the pass, the road passes Jackson Glacier Overlook, one of the few places to view a glacier without hiking, before reaching St. Mary Lake. The Sun Point and Sunrift Gorge pullouts offer short walks to viewpoints over the lake. Many Glacier, reached by a separate road north of St. Mary, is widely regarded as the park’s premier hiking base and is worth an added day for visitors with the time, though its access road has faced periodic construction delays in recent years.
Optional Extension: Two Medicine and the North Fork
Travelers with additional days often add Two Medicine, on the park’s southeast side, which sees a fraction of the traffic of the main corridor and offers boat tours and trailheads to Twin Falls and Cobalt Lake. The North Fork area, reached by gravel road on the park’s western edge, leads to Bowman and Kintla lakes and requires more driving time in exchange for solitude.
Must-See Viewpoints Along the Road
- The Loop — a hairpin turn roughly halfway up the west side, with a trailhead leading toward Granite Park Chalet.
- Bird Woman Falls Overlook — a roadside pullout with a distant view of a 492-foot waterfall dropping from a hanging valley.
- Logan Pass — the highest point on the road and the starting point for Hidden Lake Overlook and the Highline Trail.
- Jackson Glacier Overlook — on the east side, offering a direct view of one of the park’s remaining glaciers.
- Sun Point — a short walk from a parking pullout to a bluff over St. Mary Lake.
Lodging Recommendations
Inside the park, lodges are operated on a concession basis and book far in advance, often a year ahead for the most popular dates. Lake McDonald Lodge, on the west side, and Many Glacier Hotel and Rising Sun Motor Inn, on the east side, are the most sought-after options for visitors who want to stay within the park. Swiftcurrent Motor Inn and the historic backcountry chalets, Granite Park and Sperry, offer more rustic alternatives, with the chalets accessible only by trail.
Campgrounds inside the park, including Fish Creek, Many Glacier, and St. Mary, take reservations for a portion of their sites, while others operate first-come, first-served and fill by early morning during peak weeks. Outside the park, Whitefish, Columbia Falls, and Kalispell on the west side, and Browning and East Glacier on the east side, offer a wider range of hotels and short-term rentals, generally at lower cost than in-park lodges, at the expense of a longer drive to the entrances.
Conclusion
A well-planned Glacier National Park road trip depends less on any single decision and more on aligning several moving pieces: a travel window when Going-to-the-Sun Road is fully open, an understanding of current vehicle reservation rules, and lodging or camping booked well ahead of the trip. Visitors who confirm these details in advance, rather than assuming past years’ rules still apply, tend to spend less time managing logistics on the ground and more time at the overlooks the park is known for.