How far is Boise, ID from Ammon, ID?
The driving distance from Boise, ID to Ammon, ID is about 283.3 miles (456 km), with a travel time of about 04h 02m by car.
- The straight-line flight distance is about 212.4 miles (341.8 km).
- For a round trip, plan for roughly 08h 04m 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 04h 02m.
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 Jerome County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Light Rain Likely then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Boise and Ammon.
Turn-by-Turn Driving Directions
Step-by-step road directions between Boise and Ammon.
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1
Start on the route
36 m · 11 sec
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2
Turn right
80 m · 21 sec
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3
Turn right onto South 6th Street
849 ft · 39 sec · South 6th Street
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4
Turn left onto West Myrtle Street
1 km · 1 min · West Myrtle Street
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5
Turn right onto South Broadway Avenue
2.8 mi · 6 min · South Broadway Avenue
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6
Take the ramp left toward I 84 East
2049 ft · 46 sec · Idaho Medal of Honor Highway
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7
Continue on Vietnam Veterans Memorial Highway
166.5 mi · 2 hr 36 min · Vietnam Veterans Memorial Highway
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8
Continue straight
62.7 mi · 59 min
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9
Keep slight left to continue on Idaho Falls
3046 ft · 40 sec
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10
Merge slight right
43.2 mi · 41 min
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11
Take the exit slight right toward I 15 Business, US 26: Ammon, Jackson
1448 ft · 36 sec
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12
Turn right onto West Sunnyside Road
5.9 mi · 9 min · West Sunnyside Road
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13
Turn left onto Central Avenue
753 ft · 35 sec · Central Avenue
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14
Turn right onto Molen Street
41 m · 6 sec · Molen Street
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15
Arrive at your destination
0 m · 1 sec · Molen Street
Car Route Details
A richer read on the saved driving route between Boise and Ammon.
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
Continue on Vietnam Veterans Memorial Highway
166 mi · 02h 36m
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.
Rain Showers leaving Boise and Light Rain Likely then Showers And Thunderstorms near Ammon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Boise to Ammon?
The road trip is about 283.3 miles (456 km) and usually takes 04h 02m 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?
Hazelton is a useful midpoint, sitting about 141.5 miles from Boise and 141.8 miles from Ammon.
How much longer is the road route than the straight-line distance?
The direct path is about 212.4 miles (341.8 km), while the road route adds roughly 70.9 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 8:56 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.93 one way or $77.86 round trip. Estimated CO2 is about 88.9 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Boise and Light Rain Likely then Showers And Thunderstorms near Ammon.
Stop Ideas Near Hazelton
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 Hazelton.
Twin Falls, Idaho
Flight Path Map
This map shows the direct air route between Boise and Ammon. Straight-line distance: 212.4 mi (341.83 km).
#1 Boise
The capital of Idaho.
| Population | 228,959 |
| Coordinates | 43.6135000, -116.2034500 |
| Altitude | 823 |
| Country | United States |
#2 Ammon
City in Idaho, United States
| Population | 17,115 |
| Coordinates | 43.4696400, -111.9666400 |
| Altitude | 1437 |
| Country | United States |
End: Molen Street (-111.966641, 43.469622)
Estimated Travel Time
Distance: 456 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 09h 26m |
| 40 mph (64.37 km/h) | 07h 05m |
| 50 mph (80.47 km/h) | 05h 39m |
| 60 mph (96.56 km/h) | 04h 43m |
| 70 mph (112.65 km/h) | 04h 02m |
| 80 mph (129 km/h) | 03h 32m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $38.93 | $77.86 |
| Mid-grade | $4.23 | $42.31 | $84.62 |
| Premium | $4.55 | $45.49 | $90.98 |
| Diesel | $5.41 | $54.12 | $108.24 |
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 22, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.