Origin
Nampa, ID
Late night in Nampa on Saturday
Local time
12:09 AM
MDT
Current temp
59°F
Unavailable
Live forecast
Trip from Nampa, ID to Sun Valley, ID
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
3h 29m
Distance
173.4 mi
279 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$27
one way
EV Charging
Unknown
Best Time to Leave
4 AM
3h 17m
★
6 AM
3h 29m
8 AM
3h 54m
10 AM
3h 38m
12 PM
3h 36m
3 PM
3h 39m
5 PM
3h 53m
8 PM
3h 22m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Nampa, ID
Wikimedia Commons
Sun Valley, ID
Sergio Zhukov
Trip Overview
The drive from Nampa, ID to Sun Valley, ID covers 173.4 miles and takes about 3h 29m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on Vietnam Veterans Memorial Highway, Idaho Medal of Honor Highway, Sun Valley Highway for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 56.7 miles on Vietnam Veterans Memorial Highway. At current regular gas prices, budget about $27.48 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
86.7 miles from Nampa, ID
A natural place for your longest stop of the day , about 1h 37m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 29m. Total distance: 173.4 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 29m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (15%). Straightforward navigation.
Scenic Drive
Turn-heavy local drive route profile.
Drive Character
Expect a 3h 29m drive with frequent turns across 173.4 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 23 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Vietnam Veterans Memorial Highway is the longest continuous segment at about 56.7 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near Sunny Ridge Road.
Driving Effort
4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 3h 29m drive. You will face about 9 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (Sunny Ridge Road): Navigation decision point; at 5.5 miles (I 84 Business): Lane positioning matters here. Multiple destination signs - pick the right one; at 5.9 miles (I 84; US 30; ID 55 / Vietnam Veterans Memorial Highway): Merge point - match speed before joining. Lane positioning matters here.
Critical Maneuvers
5 of 9 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
4
0 mi into trip
|
~0m in
|
Sunny Ridge Road
Turn left onto Sunny Ridge Road
Navigation decision point
6
5.5 mi into trip
|
~12m in
|
I 84 Business
Take the ramp onto I 84 Business toward I 84 East: Meridian, Boise
Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / right lanes.
Toward I 84 East: Meridian, Boise
5
5.9 mi into trip
|
~12m in
|
I 84; US 30; ID 55 / Vietnam Veterans Memorial Highway
Merge onto I 84; US 30; ID 55 / Vietnam Veterans Memorial Highway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
16.7 mi into trip
|
~25m in
|
I 84; US 30 / Vietnam Veterans Memorial Highway
Keep slight right at fork onto I 84; US 30 / Vietnam Veterans Memorial Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
6
62.5 mi into trip
|
~1h 9m in
|
US 20 / Idaho Medal of Honor Highway
Take the exit onto US 20 / Idaho Medal of Honor Highway toward US 20, I 84 Business: Mountain Home, Fairfield
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 95
Toward US 20, I 84 Business: Mountain Home, Fai...
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Nampa, ID to Sun Valley, ID, road signs begin pointing toward Fairfield along the way.
Fairfield
62.5 mi in
|
~1h 9m
|
via US 20
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Vietnam Veterans Memorial Highway | 56.7 mi | 56m |
| Idaho Medal of Honor Highway | 42.2 mi | 49m |
| Sun Valley Highway | 40.8 mi | 47m |
| ID 75 | 26.2 mi | 39m |
| Garrity Boulevard | 1.8 mi | 3m |
| East Sun Valley Road | 1.5 mi | 3m |
| Sunny Ridge Road | 1 mi | 2m |
| 16th Avenue North | 0.8 mi | 1m |
Longest stretch:
Vietnam Veterans Memorial Highway
— 56.7 mi, about 56m
Turn-by-Turn Driving Directions
Step-by-step road directions between Nampa, ID and Sun Valley, ID.
1
Start on Stony Meadow Drive
183 ft
·
13 sec
·
Stony Meadow Drive
2
Turn left onto Sunny Ridge Road
1.0 mi
·
2 min
·
Sunny Ridge Road
3
Continue on Holly Street
0.3 mi
·
44 sec
·
Holly Street
4
Continue on East Bird Avenue
0.2 mi
·
25 sec
·
East Bird Avenue
5
Continue on Fern Street
0.3 mi
·
37 sec
·
Fern Street
6
Continue on East Sheridan Avenue
0.1 mi
·
16 sec
·
East Sheridan Avenue
7
Continue on Holly Street
0.3 mi
·
46 sec
·
Holly Street
8
Continue on 16th Avenue South
0.7 mi
·
1 min
·
16th Avenue South
9
Continue on 16th Avenue Overpass
0.1 mi
·
15 sec
·
16th Avenue Overpass
10
Continue on 16th Avenue North
0.8 mi
·
1 min
·
16th Avenue North
Use the right lane.
11
Turn right onto I 84 Business
1.8 mi
·
3 min
·
Garrity Boulevard
12
Take the ramp onto I 84 Business
0.4 mi
·
25 sec
·
I 84 Business
Toward I 84 East: Meridian, Boise
Use the straight / right lanes.
13
Merge onto I 84; US 30; ID 55
11 mi
·
12 min
·
Vietnam Veterans Memorial Highway
Use the straight / slight right lanes.
14
Keep slight right at fork onto I 84; US 30
46 mi
·
44 min
·
Vietnam Veterans Memorial Highway
Use the slight right lane.
15
Take the exit onto US 20
0.4 mi
·
55 sec
·
Idaho Medal of Honor Highway
Exit 95
Toward US 20, I 84 Business: Mountain Home, Fairfield
16
Continue on I 84 Business; US 20
0.1 mi
·
10 sec
·
Idaho Medal of Honor Highway
17
Continue on I 84 Business; US 20
41 mi
·
47 min
·
Sun Valley Highway
Use the straight lane.
18
Continue on US 20
42 mi
·
48 min
·
Idaho Medal of Honor Highway
19
Turn left onto ID 75
26 mi
·
39 min
·
ID 75
20
Turn right onto ID 75 Spur
1.5 mi
·
3 min
·
East Sun Valley Road
21
Turn right onto Moritz Road
0.2 mi
·
37 sec
·
Moritz Road
22
Turn right onto Inn Entry Lane
290 ft
·
12 sec
·
Inn Entry Lane
23
Arrive at destination
Inn Entry Lane
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 86.7 miles from Nampa, ID, or about 1h 37m into the drive.
The longest continuous stretch on this route runs about 56.7 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 38 miles or 45m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 86.7 miles or 1h 37m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 41m
Traffic, exits, and arrival timing usually matter more near Sun Valley, ID than in the middle of the route.
Before You Leave
+
Open the route before leaving Nampa, ID so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Nampa, ID
This is one driving day of about 173.4 miles and 3h 29m.
Your first comfortable stop window is around 38 miles from Nampa, ID.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on Vietnam Veterans Memorial Highway for about 56.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 86.7 mi from Nampa, ID · 1h 37m into the drive
Mid-route town
Meal stop
87 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 38 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 86.7 miles from Nampa, ID, which is a good place for a longer meal and fuel stop.
Arriving in Sun Valley, ID
The final approach into Sun Valley, ID usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Sun Valley, ID.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$27.48 one way
$54.96 round trip
$4.03/gal
25.4 MPG avg
61 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $28.80 | $57.60 |
| premium | $4.53 | $30.93 | $61.86 |
| diesel | $5.61 | $38.28 | $76.57 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$27
Meals
$25–$50
Total
$52–$77
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 60.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $18 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 52 | 0 | $18.21 | $8.32 |
| Efficient EV | 43.4 | 0 | $15.17 | $6.94 |
| EV Truck/SUV | 69.4 | 0 | $24.28 | $11.10 |
Gas CO2
61 kg
EV CO2
20 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Sun Valley, ID
Late night in Sun Valley on Saturday
Local time
12:09 AM
MDT
Current temp
53°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
6 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 29m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Nampa, ID to Sun Valley, ID covers 173.4 miles and takes about 3h 29m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Vietnam Veterans Memorial Highway, Idaho Medal of Honor Highway, Sun Valley Highway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 86.7 miles from Nampa, ID. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $27.48 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This is a straightforward 3h 29m drive. You will face about 9 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: near the start (Sunny Ridge Road): Navigation decision point; at 5.5 miles (I 84 Business): Lane positioning matters here. Multiple destination signs - pick the right one; at 5.9 miles (I 84; US 30; ID 55 / Vietnam Veterans Memorial Highway): Merge point - match speed before joining. Lane positioning matters here.
On the drive from Nampa, ID to Sun Valley, ID, road signs begin pointing toward Fairfield along the way.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
Was this helpful?
Thanks for your feedback!
Your tip has been submitted. Thanks!
/500
Recent Tips
·
Explore More
Continue From Sun Valley, ID
More trips to Sun Valley, ID
Explore more options from Nampa, ID or browse trips ending in Sun Valley, ID.
Looking for more statewide routes? Browse ID road trips.