How far is Lewiston, ID from Mountain Home, ID?
The driving distance from Lewiston, ID to Mountain Home, ID is about 313.7 miles (504.8 km), with a travel time of about 05h 52m by car.
- The straight-line flight distance is about 236 miles (379.8 km).
- For a round trip, plan for roughly 11h 45m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
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 05h 52m.
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.
City in Valley County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Lewiston and Mountain Home.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lewiston and Mountain Home.
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1
Start on the route
32 m · 10 sec
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2
Turn right onto Idaho Street
1 km · 2 min · Idaho Street
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3
Turn right onto 19th Street
88 m · 18 sec · 19th Street
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4
Turn left onto 7th Avenue
669 ft · 31 sec · 7th Avenue
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5
At the end of the road, turn left onto 21st Street
103 m · 10 sec · 21st Street
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6
Continue straight
1.6 km · 2 min
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7
Keep slight right to continue on US 95 South: Missoula, Boise
9.3 mi · 11 min
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8
Continue straight
58.6 mi · 1 hr 8 min
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9
Turn right onto Johnston Road
2.2 mi · 5 min · Johnston Road
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10
Turn right
76.4 mi · 1 hr 27 min
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11
Turn left
10.6 mi · 16 min
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12
Turn right onto Boydstun Street
1.5 km · 2 min · Boydstun Street
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13
Continue on East Deinhard Lane
1.6 mi · 3 min · East Deinhard Lane
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14
Turn right onto South 3rd Street
45.6 mi · 1 hr 2 min · South 3rd Street
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15
Continue on ID 55
18.5 mi · 25 min · ID 55
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16
Continue on Highway 55
12.6 mi · 17 min · Highway 55
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17
Continue on Horseshoe Bend Road
1.3 mi · 2 min · Horseshoe Bend Road
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18
Continue on ID 55
2 mi · 5 min · ID 55
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19
Continue on Horseshoe Bend Road
2105 ft · 30 sec · Horseshoe Bend Road
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20
Continue on Highway 55
2.4 mi · 3 min · Highway 55
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21
Continue on Payette River Scenic Byway
5.9 mi · 7 min · Payette River Scenic Byway
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22
Continue on North Horseshoe Bend Road
8.9 mi · 12 min · North Horseshoe Bend Road
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23
Turn left onto East State Street
2.4 mi · 4 min · East State Street
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24
Turn right onto North Glenwood Street
1.7 mi · 4 min · North Glenwood Street
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25
Turn left onto North Mountain View Drive
1056 ft · 38 sec · North Mountain View Drive
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26
Turn right onto North Cole Road
2.6 mi · 6 min · North Cole Road
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27
Continue on South Cole Road
1.2 mi · 3 min · South Cole Road
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28
Take the ramp left toward I 84 East
1965 ft · 48 sec
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29
Merge slight left onto Vietnam Veterans Memorial Highway
39.5 mi · 38 min · Vietnam Veterans Memorial Highway
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30
Take the exit slight right toward I 84 Business: Mountain Home, Bruneau
4.1 mi · 6 min
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31
Turn left onto American Legion Boulevard
1010 ft · 23 sec · American Legion Boulevard
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32
Turn right onto North 4th East Street
114 m · 22 sec · North 4th East Street
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33
Turn left onto East 2nd North Street
36 m · 5 sec · East 2nd North Street
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34
Arrive at your destination
0 m · 1 sec · East 2nd North Street
Car Route Details
A richer read on the saved driving route between Lewiston and Mountain Home.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Longest stretch
Turn right
76.4 mi · 01h 27m
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.
Sunny leaving Lewiston and Sunny near Mountain Home.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lewiston to Mountain Home?
The road trip is about 313.7 miles (504.8 km) and usually takes 05h 52m 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?
McCall is a useful midpoint, sitting about 155.7 miles from Lewiston and 158 miles from Mountain Home.
How much longer is the road route than the straight-line distance?
The direct path is about 236 miles (379.8 km), while the road route adds roughly 77.7 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 PDT. If you want a more comfortable same-day return, try to leave by 5:14 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.10 one way or $86.19 round trip. Estimated CO2 is about 98.4 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Lewiston and Mountain Home, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Lewiston and Sunny near Mountain Home.
Stop Ideas Near McCall
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 McCall.
McCall, Idaho
Grangeville, Idaho
Flight Path Map
This map shows the direct air route between Lewiston and Mountain Home. Straight-line distance: 236.01 mi (379.82 km).
#1 Lewiston
City in Nez Perce County, Idaho, USA
| Population | 32,788 |
| Coordinates | 46.4165500, -117.0176600 |
| Altitude | 227 |
| Country | United States |
#2 Mountain Home
City in Elmore, Idaho, United States
| Population | 14,562 |
| Coordinates | 43.1329500, -115.6912000 |
| Altitude | 959 |
| Country | United States |
End: East 2nd North Street (-115.691267, 43.133031)
Estimated Travel Time
Distance: 505 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 27m |
| 40 mph (64.37 km/h) | 07h 50m |
| 50 mph (80.47 km/h) | 06h 16m |
| 60 mph (96.56 km/h) | 05h 13m |
| 70 mph (112.65 km/h) | 04h 28m |
| 80 mph (129 km/h) | 03h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $43.10 | $86.19 |
| Mid-grade | $4.23 | $46.84 | $93.67 |
| Premium | $4.55 | $50.36 | $100.71 |
| Diesel | $5.41 | $59.91 | $119.82 |
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 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.