How far is Saint Mary, MT from Seeley Lake, MT?
The driving distance from Saint Mary, MT to Seeley Lake, MT is about 197.3 miles (317.6 km), with a travel time of about 03h 54m by car.
- The straight-line flight distance is about 108.1 miles (174 km).
- For a round trip, plan for roughly 07h 49m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 54m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Widespread Frost then Sunny
Driving Route Map
The map below follows the saved road route between Saint Mary and Seeley Lake.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Mary and Seeley Lake.
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1
Start on the route
42 m · 17 sec
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2
Turn left onto Going-to-the-Sun Road
85 m · 13 sec · Going-to-the-Sun Road
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3
Turn right
18.4 mi · 22 min
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4
Turn right onto Looking Glass Hill Road
3.6 mi · 6 min · Looking Glass Hill Road
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5
Continue on Looking Glass Road
8.1 mi · 14 min · Looking Glass Road
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6
At the end of the road, turn right
60 mi · 1 hr 6 min
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7
Turn right
842 ft · 1 min
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8
At the end of the road, turn left onto Old US 2
1930 ft · 1 min · Old US 2
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9
Turn right onto US Route 2
7.5 mi · 10 min · US Route 2
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10
Continue on US 2
1.7 mi · 2 min · US 2
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11
Turn left
9.7 mi · 12 min
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12
At the end of the road, turn left
11.4 mi · 13 min
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13
Turn left
76.3 mi · 1 hr 25 min
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14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Saint Mary and Seeley Lake.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Longest stretch
Turn left
76.3 mi · 01h 25m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Clear leaving Saint Mary and Widespread Frost then Sunny near Seeley Lake.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Mary to Seeley Lake?
The road trip is about 197.3 miles (317.6 km) and usually takes 03h 54m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Columbia Falls is a useful midpoint, sitting about 98.5 miles from Saint Mary and 98.8 miles from Seeley Lake.
How much longer is the road route than the straight-line distance?
The direct path is about 108.1 miles (174 km), while the road route adds roughly 89.2 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 9:10 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.28 one way or $62.56 round trip. Estimated CO2 is about 61.9 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around Saint Mary and Widespread Frost then Sunny near Seeley Lake.
Stop Ideas Near Columbia Falls
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Columbia Falls.
Whitefish station
West Glacier
Essex
East Glacier Park
Flight Path Map
This map shows the direct air route between Saint Mary and Seeley Lake. Straight-line distance: 108.12 mi (174.01 km).
#1 Saint Mary
Situated at the eastern boundary of Glacier National Park in Glacier County, Montana, this unincorporated community lies along the shore of Saint Mary Lake at an elevation of 4551 feet.
| Population | 0 |
| Coordinates | 48.7438700, -113.4295500 |
| Altitude | 1387 |
| Country | United States |
#2 Seeley Lake
Census designated place in Montana, USA
| Population | 1,659 |
| Coordinates | 47.1793800, -113.4845200 |
| Altitude | 1225 |
| Country | United States |
End: Seeley Lake (-113.48452, 47.17938)
Estimated Travel Time
Distance: 318 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 34m |
| 40 mph (64.37 km/h) | 04h 56m |
| 50 mph (80.47 km/h) | 03h 56m |
| 60 mph (96.56 km/h) | 03h 17m |
| 70 mph (112.65 km/h) | 02h 49m |
| 80 mph (129 km/h) | 02h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.49 | $31.28 | $62.56 |
| Mid-grade | $4.83 | $33.58 | $67.16 |
| Premium | $5.19 | $36.14 | $72.29 |
| Diesel | $6.11 | $42.53 | $85.05 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Montana · Oct 15, 2026