How far is Mountain Home, ID from Boise, ID?
The driving distance from Mountain Home, ID to Boise, ID is about 43.5 miles (70 km), with a travel time of about 00h 44m by car.
- The straight-line flight distance is about 42 miles (67.6 km).
- For a round trip, plan for roughly 01h 28m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 44m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
City in Ada County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers
Driving Route Map
The map below follows the saved road route between Mountain Home and Boise.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mountain Home and Boise.
-
1
Start on East 2nd North Street
793 ft · 37 sec · East 2nd North Street
-
2
Turn right onto North 2nd East Street
2576 ft · 45 sec · North 2nd East Street
-
3
Continue on Old Oregon Trail Highway
2 mi · 3 min · Old Oregon Trail Highway
-
4
Continue on Sunset Strip
1.3 km · 1 min · Sunset Strip
-
5
Continue on Old Oregon Trail Highway
1002 ft · 17 sec · Old Oregon Trail Highway
-
6
Continue on Sunset Strip
1.2 km · 1 min · Sunset Strip
-
7
Take the ramp straight
1220 ft · 30 sec
-
8
Merge slight left onto Vietnam Veterans Memorial Highway
35 mi · 33 min · Vietnam Veterans Memorial Highway
-
9
Take the exit slight right toward US 20, US 26: Broadway Avenue
1402 ft · 34 sec · Idaho Medal of Honor Highway
-
10
Keep slight right to continue on Idaho Medal of Honor Highway
134 m · 13 sec · Idaho Medal of Honor Highway
-
11
Turn right onto South Broadway Avenue
2.9 mi · 6 min · South Broadway Avenue
-
12
Turn left onto East Front Street
1 km · 2 min · East Front Street
-
13
Turn right
17 m · 4 sec
-
14
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Mountain Home and Boise.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Vietnam Veterans Memorial Highway
Merge slight left onto Vietnam Veterans Memorial Highway
35 mi · 00h 33m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Rain Showers leaving Mountain Home and Rain Showers near Boise.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mountain Home to Boise?
The road trip is about 43.5 miles (70 km) and usually takes 00h 44m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Garden City is a useful midpoint, sitting about 21.7 miles from Mountain Home and 21.7 miles from Boise.
How much longer is the road route than the straight-line distance?
The direct path is about 42 miles (67.6 km), while the road route adds roughly 1.5 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 7:02 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.96 one way or $11.91 round trip. Estimated CO2 is about 13.6 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Mountain Home and Rain Showers near Boise.
Stop Ideas Near Garden City
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 Garden City.
Boise, Idaho
Nampa, Idaho
Ontario
Vale, Oregon
Flight Path Map
This map shows the direct air route between Mountain Home and Boise. Straight-line distance: 42 mi (67.6 km).
#1 Mountain Home
City in Elmore, Idaho, United States
| Population | 14,562 |
| Coordinates | 43.1329500, -115.6912000 |
| Altitude | 959 |
| Country | United States |
#2 Boise
The capital of Idaho.
| Population | 228,959 |
| Coordinates | 43.6135000, -116.2034500 |
| Altitude | 823 |
| Country | United States |
End: (-116.203299, 43.613424)
Estimated Travel Time
Distance: 70 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 26m |
| 40 mph (64.37 km/h) | 01h 05m |
| 50 mph (80.47 km/h) | 00h 52m |
| 60 mph (96.56 km/h) | 00h 43m |
| 70 mph (112.65 km/h) | 00h 37m |
| 80 mph (129 km/h) | 00h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $5.96 | $11.91 |
| Mid-grade | $4.23 | $6.47 | $12.95 |
| Premium | $4.55 | $6.96 | $13.92 |
| Diesel | $5.41 | $8.28 | $16.56 |
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 Idaho · 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.