How far is Bigfork, MT from Sidney, MT?
The driving distance from Bigfork, MT to Sidney, MT is about 565.3 miles (909.7 km), with a travel time of about 09h 43m by car.
- The straight-line flight distance is about 459.8 miles (739.9 km).
- For a round trip, plan for roughly 19h 27m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 09h 43m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain And Snow Likely
Rain Showers
Driving Route Map
The map below follows the saved road route between Bigfork and Sidney.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bigfork and Sidney.
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1
Start on Cascade Avenue
53 m · 10 sec · Cascade Avenue
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2
Turn right onto Grand Drive
2344 ft · 2 min · Grand Drive
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3
Keep slight left to continue on Holt Drive
43 m · 6 sec · Holt Drive
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4
Keep slight right
97 m · 15 sec
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5
Turn right
13.6 mi · 18 min
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6
Continue straight
61 m · 7 sec
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7
Turn right
9.7 mi · 12 min
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8
At the end of the road, turn right onto US 2
1.7 mi · 2 min · US 2
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9
Continue on US Route 2
80.1 mi · 1 hr 31 min · US Route 2
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10
Enter the roundabout and take exit 1 toward the route
7 m · 1 sec
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11
Exit the roundabout
3.7 mi · 7 min
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12
Turn straight
54.9 mi · 1 hr 4 min
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13
Continue on 5th Avenue North
138 m · 17 sec · 5th Avenue North
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14
Turn left onto Main Street
1.2 km · 2 min · Main Street
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15
Continue on Roosevelt Highway
102.8 mi · 1 hr 56 min · Roosevelt Highway
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16
Continue straight
228.4 mi · 4 hr 20 min
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17
Enter the roundabout and take exit 2 toward the route
36 m · 2 sec
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18
Exit the roundabout
2828 ft · 36 sec
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19
Enter the roundabout and take exit 2 toward the route
39 m · 2 sec
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20
Exit the roundabout
31.4 mi · 36 min
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21
Turn right onto Broadway Avenue
1729 ft · 28 sec · Broadway Avenue
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22
Turn left onto 1st Street East
35.6 mi · 40 min · 1st Street East
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23
Continue on West Holly Street
1.4 mi · 2 min · West Holly Street
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24
Turn right onto North Central Avenue
531 ft · 7 sec · North Central Avenue
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25
Arrive at your destination
0 m · 1 sec · North Central Avenue
Car Route Details
A richer read on the saved driving route between Bigfork and Sidney.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Roosevelt Highway
Continue straight
228 mi · 04h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Rain And Snow Likely leaving Bigfork and Rain Showers near Sidney.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bigfork to Sidney?
The road trip is about 565.3 miles (909.7 km) and usually takes 09h 43m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Chinook is a useful midpoint, sitting about 282.3 miles from Bigfork and 283 miles from Sidney.
How much longer is the road route than the straight-line distance?
The direct path is about 459.8 miles (739.9 km), while the road route adds roughly 105.5 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $77.63 one way or $155.25 round trip. Estimated CO2 is about 177.2 kg one way.
What should you check before leaving?
Before you leave, expect Rain And Snow Likely around Bigfork and Rain Showers near Sidney.
Stop Ideas Near Chinook
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 Chinook.
Havre station
Malta
Flight Path Map
This map shows the direct air route between Bigfork and Sidney. Straight-line distance: 459.73 mi (739.87 km).
#1 Bigfork
City in Itasca County, Minnesota, United States of America
| Population | 4,270 |
| Coordinates | 48.0632900, -114.0726100 |
| Altitude | 908 |
| Country | United States |
#2 Sidney
City in Montana, United States
| Population | 6,297 |
| Coordinates | 47.7166800, -104.1563300 |
| Altitude | 594 |
| Country | United States |
End: North Central Avenue (-104.156325, 47.716678)
Estimated Travel Time
Distance: 910 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 18h 50m |
| 40 mph (64.37 km/h) | 14h 07m |
| 50 mph (80.47 km/h) | 11h 18m |
| 60 mph (96.56 km/h) | 09h 25m |
| 70 mph (112.65 km/h) | 08h 04m |
| 80 mph (129 km/h) | 07h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $77.63 | $155.25 |
| Mid-grade | $4.23 | $84.37 | $168.73 |
| Premium | $4.55 | $90.71 | $181.41 |
| Diesel | $5.41 | $107.92 | $215.83 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.