Going-to-the-Sun Road: opening dates & status.

Is Going-to-the-Sun Road open?

The short version: it depends on the date and the weather, and the official page below is the only place that answers it for today. The full drive over Logan Pass is a summer road. Glacier's hours page states that "the entire road does not usually open until late June or early July, and the Logan Pass area is not accessible by vehicle until then," and that "Going-to-the-Sun Road usually remains fully open until the third Monday in October." Outside that window you can still drive the lower section on the west side. The park notes that "the portion of Going-to-the-Sun Road from West Glacier to Lake McDonald Lodge is usually plowed and open year-round, weather permitting." Vehicles longer than 21 feet or wider than 8 feet are not allowed between Avalanche Creek and Rising Sun at any time.

Why a spare day helps.

Even in the middle of summer, the alpine section is the part of the park most likely to shut on short notice. Heavy rain, early or late snow, flooding and rockfall all close it from time to time, and the park sometimes closes it before a forecast storm arrives rather than after. A closure can last a few hours or a few days, and while it is on, Logan Pass cannot be reached by car from either side. If the pass is the reason for your trip, build in a spare day rather than pinning it to one morning. The park will text you its road updates if you text GNPROADS to 333111, which is the fastest warning you can get while you are in the area. Cell coverage inside the park is patchy, so read the road page before you lose signal.

Typical opening and closing windows.

Plan around late June to early July for the full alpine traverse. The park's road information page says "there is no set date for the road to open over Logan Pass" and that "typically, the road has been fully open by early July." In 2025 the full road opened June 16, and in 2026 it opened June 22. The closing side is steadier. The alpine sections typically close for the winter around the third Monday of October, which falls on October 19 in 2026, but the park says this can happen earlier in wintry weather. When they close, the west-side gate moves to Avalanche Creek or Lake McDonald Lodge, depending on the weather. If your dates are in June, assume the lower road to Lake McDonald is open but the pass may not be. If your dates are after mid-October, plan on the lower road only.

What drives the dates.

Snow and weather set the opening, not the calendar. The park says "unpredictable spring snowstorms, avalanches, or other weather-related events can slow down progress," that crews often have to re-plow sections after a storm, and that these unknowns make "predicting the precise opening date of Going-to-the-Sun Road impossible." Summer weather matters too. Heavy rain can bring flooding, mudslides and rockfall, and the park will close the alpine section as a precaution when a big storm is forecast. In fall, early winter weather can close the pass before the third Monday in October. Services at the top wind down before the road does. Water, food and the Logan Pass Visitor Center run on their own shorter season, and the park publishes those dates each year, so carry water and food for the drive rather than counting on either.

How crowds ramp as the road opens.

This is the part the visit data tells you and the road page does not. Glacier's traffic tracks the road opening closely. July is the single busiest month, and the jump into summer is steep: the five-year average roughly 2.7x's from May to June as the lower elevations green up and the pass nears opening, then climbs again into the July peak. June already runs about 72 percent of the July high even though the full road often is not open until late in the month.

The takeaway for a crowd-averse trip: September still runs about 73 percent of the July peak, but October drops to about 18 percent, and the road usually stays fully open until the third Monday of that month. The catch is weather, since an early storm can close the pass first. For the full year in one view, see the Glacier crowd calendar.

Common questions.

When does Going-to-the-Sun Road open?
The full road over Logan Pass usually opens late June to early July, and the park says there is no set date. It opened June 22 in 2026 and June 16 in 2025. The lower section from West Glacier to Lake McDonald Lodge is usually plowed and open all year, weather permitting.

Is Going-to-the-Sun Road open now?
We do not track it live, so check the official road page for the day you drive. In a typical year the full road over Logan Pass is open from late June or early July until the third Monday in October, while the lower west-side section is usually open all year. Weather closes the alpine part at short notice.

Do you need a reservation for Going-to-the-Sun Road?
Not in 2026. The park states that "vehicle reservations are not required in 2026." Glacier has used vehicle reservations in some past years, so check the park's current-year reservation page before a trip in a later season.

When does Going-to-the-Sun Road close for the season?
The alpine sections typically close around the third Monday of October, which is October 19 in 2026, but the park says wintry weather can close them earlier. After that, the west side stays open to Avalanche Creek or Lake McDonald Lodge, depending on the weather.

How we read the crowds

The monthly visit counts come from the official NPS Visitor Use Statistics. "5-yr avg" is the mean of 2021 through 2025 recreation visits for that month. "Share of peak" compares a month against the park's own busiest month, so 100 percent marks the single busiest month of the year. The road opening and closing windows are not in that data. Those come from the park's own official road pages, which we read on September 13, 2026, and they shift with snow and weather every year, so we hedge them on purpose. This is an independent site, not affiliated with the National Park Service, and it carries no live alerts. For the open or closed status on the day you travel, use the official NPS page linked at the top of this guide.