Short version: Montana starts about three and a half hours south of Calgary, and most of the places people go are within a day of driving. Two border crossings are open around the clock. The road you take, and the crossing you use, depends on which part of Montana you are headed for. This guide lays out all of it in one place.
Where People Go, and How Far It Is
These are road times from Calgary with nothing added. The border and a rest stop sit on top, and we plan the pickup with a cushion for both.
Shelby
About 4 hours by road
About 380 km. Usual crossing: Coutts and Sweet Grass.
Kalispell and Whitefish (FCA)
About 5 hours by road
About 450 to 480 km. Usual crossing: Roosville, or Carway and Piegan.
Great Falls (GTF)
About 5 hours by road
About 510 to 520 km. Usual crossing: Coutts and Sweet Grass.
Helena
About 6.5 hours by road
About 650 km. Usual crossing: Coutts and Sweet Grass.
Missoula
About 7 to 7.5 hours by road
About 680 to 730 km. Usual crossing: Roosville, or Coutts and Sweet Grass.
Bozeman
About 8 hours by road
About 800 km. Usual crossing: Coutts and Sweet Grass.
Big Sky
About 8.5 to 9 hours by road
About 870 km. Usual crossing: Coutts and Sweet Grass.
| Destination | Distance | Road time | Usual crossing |
|---|---|---|---|
| Shelby | About 380 km | About 4 hours | Coutts and Sweet Grass |
| Kalispell and Whitefish (FCA) | About 450 to 480 km | About 5 hours | Roosville, or Carway and Piegan |
| Great Falls (GTF) | About 510 to 520 km | About 5 hours | Coutts and Sweet Grass |
| Helena | About 650 km | About 6.5 hours | Coutts and Sweet Grass |
| Missoula | About 680 to 730 km | About 7 to 7.5 hours | Roosville, or Coutts and Sweet Grass |
| Bozeman | About 800 km | About 8 hours | Coutts and Sweet Grass |
| Big Sky | About 870 km | About 8.5 to 9 hours | Coutts and Sweet Grass |
Distances and times are rounded from Google Maps driving directions, checked November 13 2026. Treat every one as approximate. From Calgary International Airport, add a few minutes.
The Flathead Valley Side
Whitefish, Kalispell and Glacier Park International Airport sit together in the Flathead Valley. Whitefish is the ski town, and the airport is between it and Kalispell. West Glacier, the west entrance to Glacier National Park, is about 33 miles from Kalispell (National Park Service). Missoula is further south on Highway 93.
Read more: Calgary to Whitefish and Calgary to Kalispell FCA.
The Interstate 15 Side
Shelby, Great Falls and Helena are strung down Interstate 15, straight south from the Coutts crossing. Bozeman and Big Sky are further again. This is the simple road: open highway, one crossing that never closes.
Read more: Calgary to Great Falls GTF.
Three Ways Across the Border
The crossing matters more than most people expect. It decides whether an overnight departure is possible and which Montana highway you come out on. Hours below are taken from the official port pages, checked November 13 2026.
Coutts, Alberta and Sweet Grass, Montana
Highway 4 to Interstate 15. Open 24 hours, every day.
About 320 km from Calgary. This is the crossing for Shelby, Great Falls, Helena, Bozeman and Big Sky, and it is our default whenever a Montana run leaves in the small hours. US Customs and Border Protection lists it as open 24 hours a day, seven days a week.
Source: CBP, Port of Sweetgrass
Roosville, British Columbia and Roosville, Montana
BC Highway 93 to US Highway 93. Open 24 hours, every day.
The shorter road to Whitefish and Kalispell. From Calgary it runs south, then west on Highway 3 over the Crowsnest Pass into British Columbia, then south on Highway 93 to the border near Eureka, Montana. From Banff or Canmore, Highway 93 leads to the same crossing without backtracking to Calgary.
Source: CBP, Port of Roosville
Carway, Alberta and Piegan, Montana
Highway 2 to US Highway 89. Posted hours, not overnight.
The straight line south from Calgary through Fort Macleod and Cardston. It reaches the Flathead Valley by US Highway 2 along the southern edge of Glacier National Park. This winter the Canadian side is open 8 am to midnight Alberta time, from November 1 2026 to March 14 2027. The US side lists 7 am to 11 pm Montana time. Those are the same sixteen hours on two different clocks.
Sources: Canada Border Services Agency and CBP, Port of Piegan
Closed or limited in winter: Chief Mountain on Highway 6 is seasonal and shut from October 1 to May 14. Del Bonita keeps short daytime hours. Neither is part of a winter plan.
Hours change with the season, so we check them before every run. You can too: the CBSA directory of offices covers the Canadian side, and live waits are posted by CBP and CBSA. We cannot predict the wait on the day.
The One Hour Catch
Since November 1 2026, Alberta no longer changes its clocks. The province stays on what it now calls Alberta Time all year (Government of Alberta). Montana still falls back in November and springs forward in March.
The result: from early November until March 14 2027, Montana is one hour behind Calgary. A 7 am departure from Kalispell is 8 am in Calgary. In summer the two clocks match again.
It sounds small. It is the kind of thing that turns a comfortable connection into a missed one, or an open crossing into a closed gate. Give us the time in Montana and we will do the arithmetic.
Winter Driving, Honestly
From November to spring these are winter roads, and conditions can change within the hour. Every time on this page is weather and border permitting.
What Changes in Winter
- The roads to the Flathead Valley cross mountain passes, so allow more time when it snows
- British Columbia requires winter tires or chains on most routes from October 1 to April 30 (Government of BC)
- South of Coutts, Interstate 15 crosses open country where wind and blowing snow can slow things down
- Daylight is short, so much of a long run is driven in the dark
Where to Check the Roads
- 511 Alberta for Highways 2, 3, 4 and 22
- DriveBC for Highway 3 and Highway 93 in British Columbia
- 511MT, from the Montana Department of Transportation, for everything south of the border
We read the same reports before we leave. If a highway is closed or not safe, we tell you and move the departure. A late arrival is a nuisance. That is all it should ever be.
Picking the Vehicle
Four to nine hours is long enough that the vehicle matters. Count the people, then count the bags, then be honest about the skis.
| Vehicle | Passengers | Best for |
|---|---|---|
| Sedan | 1 or 2 | Solo travellers and couples with normal luggage |
| Chevrolet Suburban SUV | Up to 6 | Families, ski and golf gear, winter highways |
| Ford Transit executive van | 12 to 14 | Teams, wedding parties and several families travelling together |
Both Directions, and Beyond Montana
Everything here works in reverse. We pick up in Montana and bring people north to Calgary, Banff or Canmore, whether that is the end of a ski week or a flight that landed on the wrong side of the border.
Headed further west? Spokane is about 6.5 to 7.5 hours from Calgary and has its own guide: Calgary to Spokane GEG. For what actually happens at the booth, read how cross-border chauffeur service works.
Before You Are Picked Up
- A valid passport for every passenger, children and infants included
- Passports on you, never in a bag in the back
- Not a Canadian or American citizen? Check current US entry rules yourself before you book. We do not give immigration advice
- The address where you are staying, and your flight number if you have one
Going to Montana? Tell Us Where.
Call or text with your pickup point, your destination, the number of people and the number of bags. You get one flat quote before you leave.
US flight held or cancelled this week? See the ground stop page.
Calgary to Montana FAQ
How long is the drive from Calgary to Montana?
Which Alberta to Montana border crossings are open 24 hours?
Which crossing do you use for Kalispell and Whitefish?
Is Montana in the same time zone as Calgary?
Can you pick us up in Banff or Canmore instead of Calgary?
What vehicle should we book for a Montana run?
What documents do we need?
Do you drive from Montana back to Calgary?
Do you run this route in winter?
Montana is closer than most Calgarians think, and the hard parts are all things a chauffeur handles for a living: which road, which gate, which clock, and what the weather is doing in the pass. You sit in the back and arrive.
Call or text (877) 748-0138 and tell us where in Montana you need to be.
Keep reading: Calgary to Kalispell FCA |Calgary to Great Falls GTF |Calgary to Spokane GEG |Ground Stop Help
