How far is Missoula, MT from Big Sky, MT?

The driving distance from Missoula, MT to Big Sky, MT is about 240.1 miles (386.4 km), with a travel time of about 04h 07m by car.

  • The straight-line flight distance is about 166.9 miles (268.6 km).
  • For a round trip, plan for roughly 08h 14m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
240.07 mi
04h 07m
Flight
166.92 mi
268.63 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Missoula.

Flight Distance

Direct air line
166.92 mi
Kilometers
268.63 km
Flight Time
00h 20m

Driving Distance

Road route
240.07 mi
Kilometers
386.35 km
Drive Time
04h 07m

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 04h 07m.

Arrival Snapshot
Arrive in Big Sky
Sat, Apr 25, 6:26 PM MDT
Return by in Missoula
Sat, Apr 25, 10:34 PM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Missoula
2026-04-25T14:19
Arrive Big Sky
Sat, Apr 25, 6:26 PM MDT
Route Timing
04h 07m
One way by road
Best Departure Window
6:00 AM to 8:00 AM MDT
Leave early for more breathing room
Arrive between
10:07 AM to 12:07 PM MDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
8:46 AM MDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Missoula
9:00 PM MDT
Early departure recommended

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.

Mid-route stop
Butte
MT

Consolidated city-county in Montana, United States

From Missoula
119.9 mi
02h 03m
To Big Sky
120.2 mi
02h 03m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
51°F
Saturday

Widespread Frost then Mostly Sunny

Starts
Sat, Apr 25 6:00 AM MDT
Wind
2 mph ENE
Destination
30°F
Saturday

Mostly Sunny then Slight Chance Snow Showers

Starts
Sat, Apr 25 6:00 AM MDT
Wind
2 to 6 mph WSW

Driving Route Map

The map below follows the saved road route between Missoula and Big Sky.

Turn-by-Turn Driving Directions

Step-by-step road directions between Missoula and Big Sky.

  1. 1

    Start on North Higgins Avenue

    6 m · 8 sec · North Higgins Avenue

  2. 2

    Turn left onto East Broadway Street

    3078 ft · 59 sec · East Broadway Street

  3. 3

    Turn left onto Van Buren Street

    133 m · 6 sec · Van Buren Street

  4. 4

    Take the exit right

    1216 ft · 30 sec

  5. 5

    Merge slight left onto Jeannette Rankin Memorial Highway

    115.1 mi · 1 hr 49 min · Jeannette Rankin Memorial Highway

  6. 6

    Keep slight right

    75.3 mi · 1 hr 15 min

  7. 7

    Take the exit slight right toward MT 291, MT 85: Belgrade, West Yellowstone

    1374 ft · 38 sec

  8. 8

    Turn left onto Amsterdam Road

    1.3 km · 60 sec · Amsterdam Road

  9. 9

    Turn right onto Jackrabbit Lane

    6.5 mi · 7 min · Jackrabbit Lane

  10. 10

    Continue on Gallatin Road

    33.9 mi · 41 min · Gallatin Road

  11. 11

    Turn right onto Lone Mountain Trail

    7.1 mi · 11 min · Lone Mountain Trail

  12. 12

    Turn left onto Lone Moose Drive

    61 m · 7 sec · Lone Moose Drive

  13. 13

    Keep slight right to continue on Access

    156 m · 23 sec · Access

  14. 14

    Arrive at your destination

    0 m · 1 sec · Access

Car Route Details

A richer read on the saved driving route between Missoula and Big Sky.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
14 steps
6 turns on the saved route
Ramps & Exits
3
1 merges, 2 ramps or exits
Navigation Density
5.8 / 100 mi
Decision points by distance
Main Roads
Jeannette Rankin Memorial Highway
190 mi · 79%
Gallatin Road
33.9 mi · 14%
Lone Mountain Trail
7.08 mi · 3%
Jackrabbit Lane
6.55 mi · 3%
Amsterdam Road
0.82 mi
East Broadway Street
0.58 mi
Longest Stretch

Jeannette Rankin Memorial Highway

Merge slight left onto Jeannette Rankin Memorial Highway

115 mi · 01h 49m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
04h 07m
Long day trip
Same-Day Return
08h 14m
Round-trip wheel time
Road vs Air
+73.2 mi
166.9 mi direct line
Halfway Stop
Butte
02h 03m from Missoula
Leave By
8:46 AM MDT
Early departure recommended
Weather Watch

Widespread Frost then Mostly Sunny leaving Missoula and Mostly Sunny then Slight Chance Snow Showers near Big Sky.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Missoula to Big Sky?

The road trip is about 240.1 miles (386.4 km) and usually takes 04h 07m 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?

Butte is a useful midpoint, sitting about 119.9 miles from Missoula and 120.2 miles from Big Sky.

How much longer is the road route than the straight-line distance?

The direct path is about 166.9 miles (268.6 km), while the road route adds roughly 73.2 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 8:46 AM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $32.97 one way or $65.95 round trip. Estimated CO2 is about 75.3 kg one way.

What should you check before leaving?

Before you leave, expect Widespread Frost then Mostly Sunny around Missoula and Mostly Sunny then Slight Chance Snow Showers near Big Sky.

Flight Path Map

This map shows the direct air route between Missoula and Big Sky. Straight-line distance: 166.92 mi (268.63 km).

Missoula

#1 Missoula

The most populous city in Missoula County, Montana.

Population76,848
Coordinates46.8721500, -113.9940000
Altitude978
CountryUnited States
Big Sky

#2 Big Sky

Census designated place

Population2,308
Coordinates45.2846500, -111.3682900
Altitude2200
CountryUnited States
Start: Missoula (-113.994, 46.87215)
End: Big Sky (-111.36829, 45.28465)

Estimated Travel Time

Distance: 386 km by road

SpeedTime
30 mph (48.3 km/h)07h 59m
40 mph (64.37 km/h)06h 00m
50 mph (80.47 km/h)04h 48m
60 mph (96.56 km/h)04h 00m
70 mph (112.65 km/h)03h 25m
80 mph (129 km/h)02h 59m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
8.47 gal
32.07 L · about $32.97
Round trip
$65.95
16.94 gal · 64.14 L
Estimated CO2
75.3 kg one way
Round trip: 150.5 kg / 332 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.89 $32.97 $65.95
Mid-grade $4.23 $35.84 $71.67
Premium $4.55 $38.53 $77.06
Diesel $5.41 $45.84 $91.68

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 25, 2026

There is no time difference between Missoula and Big Sky. The current time is 14:19:43.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.