Nampa to Blackfoot is 273.6 miles and takes about 4h 29m via Vietnam Veterans Memorial Highway and I 86, with a fuel budget near $48 and enough daylight to finish in a day. This route stays within the Mountain West region, offering a straightforward drive across Idaho. With a recommended one-day trip, you'll encounter a mix of highway and surface roads. It’s a practical choice if you're looking for a direct connection between these two Idaho cities without needing an overnight stop.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
136.8 miles from Nampa, ID
A natural place for your longest stop of the day
, about 2h 18m into the drive
.
Main Roads
Road
Distance
Duration
Vietnam Veterans Memorial Highway
183.1 mi
2h 55m
I 86
62.7 mi
59m
I 15 BUS
19.8 mi
18m
Garrity Boulevard
1.8 mi
3m
Sunny Ridge Road
1 mi
2m
16th Avenue North
0.8 mi
1m
16th Avenue South
0.7 mi
1m
Holly Street
0.6 mi
1m
Longest stretch:
Vietnam Veterans Memorial Highway
— 183.1 mi, about 2h 55m
Traffic on I-84
Hour-of-day weekday pattern from 278 FHWA count stations on your route.
Peak
4 PM
~2,873 veh/hr typical
· worst 3,361
Quietest
2 AM
~193 veh/hr
Peak-to-quiet ratio
14.9×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 104 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Nampa, ID and Blackfoot, 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, BoiseUse 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
172 mi·2 hr 42 min·Vietnam Veterans Memorial Highway
Use the slight right lane.
15
Continue on I 86; US 30
63 mi·59 min·I 86; US 30
16
Keep slight left at fork
0.6 mi·40 sec
Toward Idaho Falls
17
Merge onto I 15 BUS
20 mi·18 min·I 15 BUS
18
Take the exit
0.2 mi·30 sec
Toward US 26, ID 39: Blackfoot, Arco
19
Keep slight right at fork
429 ft·10 sec
20
Turn straight onto I 15 Business
0.4 mi·40 sec·Bergener Boulevard
21
Continue on I 15 Business
450 ft·7 sec·West Bridge Street
22
Continue on I 15 Business
0.4 mi·43 sec·West Judicial Street
23
Turn left onto South Ash Street
0.1 mi·20 sec·South Ash Street
24
Turn right onto West Pacific Street
333 ft·14 sec·West Pacific Street
25
Turn left onto North Broadway Street
156 ft·12 sec·North Broadway Street
26
Turn left
35 ft·2 sec
27
Arrive at destination
Trip Plan
Given the 4h 29m estimated drive time, leaving Nampa in the morning allows ample time to reach Blackfoot before evening. The route is designed for a single day, so you have flexibility with stops. Keep an eye on your fuel; with an estimated cost of $48, it’s wise to top off before departing Nampa. Pay attention to the transition from highway to surface roads, as this is where speed limits and traffic patterns will change significantly.
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 136.8 miles from Nampa, ID, or about 2h 18m into the drive.
The longest continuous stretch on this route runs about 183.1 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 60 miles or 1h 5m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 136.8 miles or 2h 18m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 41m
Traffic, exits, and arrival timing usually matter more near Blackfoot, 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 273.6 miles and 4h 29m.
Your first comfortable stop window is around 60 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 183.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 12
5 decision points cluster between mile 5.5 and 272.1 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
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.
5
251.7 mi into trip|~4h 7m in
Keep slight left at fork toward Idaho Falls
Highway fork - watch signs carefully
Toward Idaho Falls
5
272.1 mi into trip|~4h 26m in
Take the exit toward US 26, ID 39: Blackfoot, Arco
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 26, ID 39: Blackfoot, Arco
Fuel & Cost
Regular Gas
$52.27 one way
$104.55 round trip
$4.85/gal25.4 MPG avg96 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.18
$55.80
$111.59
premium
$5.44
$58.64
$117.28
diesel
$6.38
$68.68
$137.36
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$52
Meals
$25–$50
Total
$77–$102
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 95.7 kg one way.
Driving Electric?
About $29 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
82.1
1
$28.73
$13.13
Efficient EV
68.4
0
$23.94
$10.94
EV Truck/SUV
109.4
1
$38.30
$17.51
Gas CO2
96 kg
EV CO2
32 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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.
Forecast as of Oct 17, 2026
Origin
Nampa, ID
Late night
in Nampa on Sunday
Local time
12:44 AM
MDT
Current temp
44°F
Partly Cloudy
SSE 10 mph0% chanceLive forecast
Destination
Blackfoot, ID
Late night
in Blackfoot on Sunday
Local time
12:44 AM
MDT
Current temp
31°F
Partly Cloudy
E 3 mph0% chanceLive 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
13 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
4h 29m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Hagerman Fossil Beds National Monument
National Monument
During the Pliocene, this place looked quite different. Lush wetlands, forests, and grasslands provided excellent habitat for a variety of animals. From fascinating, now-extinct creatures like the sab...
7 mi from route
~17 min detour
Free
near mile 113.2
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll spend about 30% of this 273.6-mile drive on highways. The longest continuous stretch on a highway is 183.1 miles on Vietnam Veterans Memorial Highway. Expect to transition from highway cruising to surface roads after this long segment. The profile indicates a mix of highway and surface driving, so be prepared for varying traffic and speed limits.
30% highway, the rest on surface roads — varied driving throughout.
27 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 183.1 mi on Vietnam Veterans Memorial Highway.
How Hard Is This Drive?
7/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 5.5 miles in near I 84 Business.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 12 significant decision points across 273.6 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: 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; at 16.7 miles (I 84; US 30 / Vietnam Veterans Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Hilly terrain with moderate elevation changes
4,609 ft2,520 ft
Total Climb
3,092 ft
Total Descent
1,112 ft
Highest Point
4,609 ft
~254.1 mi in
Elevation Range
2,090 ft
Notable High Points
4,437 ft at ~195.4 miles+164 ft prominence
4,609 ft at ~254.1 miles+109 ft prominence
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 Blackfoot, ID, road signs begin pointing toward Idaho Falls along the way.
Doable as a same-day drive at 4h 29m. Total distance: 273.6 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 29m drive, comfortable solo distance.
Scenic Drive
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 183.1 miles on Vietnam Veterans Memorial Highway. The full list of main roads is in the Roads section above.
Yes — we found about 16 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Blackfoot, ID before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. There are 16 rest areas along the route for bathroom stops.
Mostly yes along the main roads, but rural stretches through ID can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: 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; at 16.7 miles (I 84; US 30 / Vietnam Veterans Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Yes — Hagerman Fossil Beds National Monument. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 9.0 hours — manageable with a long break at Blackfoot, ID, but most travelers stay overnight.
