The drive from American Falls, ID to Lewiston, ID covers 478.1 miles and takes about 9h 8m behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on Vietnam Veterans Memorial Highway, North Norris Avenue, US 95 for much of the mileage,
and the overall profile is turn-heavy local drive.
The longest uninterrupted segment is about 171.2 miles on Vietnam Veterans Memorial Highway.
At current regular gas prices, budget about $75.76 one way before food or hotel costs.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
239 miles from American Falls, ID
A natural place for your longest stop of the day
, about 4h 4m into the drive
.
Who Is This Route For?
Family Friendly
Moderate complexity with 2 natural rest stops along the way.
Solo Traveler
9h 8m drive, plan rest stops for pacing.
Scenic Drive
Turn-heavy local drive route profile.
Drive Character
Expect a 9h 8m drive with frequent turns across 478.1 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 32 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 171.2 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 18 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Fort Hall Avenue.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 478.1 miles you will encounter 18 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (Fort Hall Avenue): Navigation decision point; at 210.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 211 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 18 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
4
0 mi into trip|~0m in|Fort Hall Avenue
Turn right onto Fort Hall Avenue
Navigation decision point
8
210.8 mi into trip|~3h 20m in
Take the exit toward Cole Road, Overland Road
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the right lane.
Exit 50A
Toward Cole Road, Overland Road
8
211 mi into trip|~3h 21m in
Keep slight left at fork toward Cole Road
Highway fork - watch signs carefully. Lane positioning matters here
Use the left / right lanes.
Toward Cole Road
7
408.2 mi into trip|~7h 44m in|US 95
At end of road, turn left onto US 95
Lane positioning matters here
Use the straight lane.
5
475.7 mi into trip|~9h 3m in|US 12
Keep slight left at fork onto US 12 toward Lewiston
Highway fork - watch signs carefully
Toward Lewiston
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 American Falls, ID to Lewiston, ID, road signs begin pointing toward Sh-55 along the way.
Sh-55
218.7 mi in|~3h 37m
Main Roads
Road
Distance
Duration
Vietnam Veterans Memorial Highway
171.2 mi
2h 41m
North Norris Avenue
76.4 mi
1h 26m
US 95
67.5 mi
1h 18m
Main Street
45.6 mi
1h 1m
I 86
36.4 mi
34m
Horseshoe Bend Road
18.9 mi
25m
Highway 55
18.4 mi
27m
West Lake Street
10.6 mi
16m
Longest stretch:
Vietnam Veterans Memorial Highway
— 171.2 mi, about 2h 41m
Turn-by-Turn Driving Directions
Step-by-step road directions between American Falls, ID and Lewiston, ID.
1
Start on this road
175 ft·14 sec·this road
2
Turn right onto Fort Hall Avenue
0.5 mi·56 sec·Fort Hall Avenue
3
Continue on I 86 Business
0.4 mi·37 sec·Lincoln Street
4
Continue on I 86 Business
2.0 mi·2 min·South Frontage Road
5
Take the ramp onto I 86 Business
0.2 mi·29 sec·I 86 Business
6
Merge onto I 86; US 30
36 mi·34 min·I 86; US 30
7
Continue on I 84; US 30
171 mi·2 hr 41 min·Vietnam Veterans Memorial Highway
Use the straight / slight right lanes.
8
Take the exit
0.2 mi·25 sec
Exit 50AToward Cole Road, Overland RoadUse the right lane.
9
Keep slight left at fork
232 ft·12 sec
Toward Cole RoadUse the left / right lanes.
10
Turn left onto South Cole Road
0.8 mi·1 min·South Cole Road
11
Continue on North Cole Road
2.6 mi·5 min·North Cole Road
Use the left lane.
12
At end of road, turn left onto North Mountain View Drive
0.2 mi·39 sec·North Mountain View Drive
13
Turn right onto North Glenwood Street
1.7 mi·3 min·North Glenwood Street
14
Turn left onto ID 44
2.3 mi·3 min·West State Street
15
Take the ramp
513 ft·14 sec
Toward SH-55
16
Merge onto ID 55
8.8 mi·11 min·North Horseshoe Bend Road
17
Continue on ID 55
5.9 mi·7 min·Payette River Scenic Byway
18
Continue on ID 55
2.4 mi·3 min·Highway 55
19
Continue on ID 55
0.4 mi·29 sec·Horseshoe Bend Road
20
Continue on ID 55
16 mi·24 min·Highway 55
21
Continue on ID 55
18 mi·25 min·Horseshoe Bend Road
22
Continue on ID 55
46 mi·1 hr 1 min·Main Street
23
Turn left onto Deinhard Lane
1.6 mi·2 min·Deinhard Lane
24
Continue on Boydstun Street
0.9 mi·1 min·Boydstun Street
25
At end of road, turn left onto ID 55
11 mi·16 min·West Lake Street
26
Turn right onto US 95
76 mi·1 hr 26 min·North Norris Avenue
27
Turn left onto Johnston Road
2.2 mi·5 min·Johnston Road
28
At end of road, turn left onto US 95
67 mi·1 hr 18 min·US 95
Use the straight lane.
29
Keep slight left at fork onto US 12
1.6 mi·3 min·US 12
Toward Lewiston
30
Turn right onto Idaho Street
0.8 mi·2 min·Idaho Street
31
Turn left
105 ft·7 sec
32
Arrive at destination
Trip Plan
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 239 miles from American Falls, ID, or about 4h 4m into the drive.
The longest continuous stretch on this route runs about 171.2 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 105 miles or 1h 41m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 239 miles or 4h 4m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 239 miles or 4h 4m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 56m
Traffic, exits, and arrival timing usually matter more near Lewiston, ID than in the middle of the route.
Before You Leave
+
Open the route before leaving American Falls, 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.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from American Falls, ID
Aim for roughly 239 miles and 4.6 hours of wheel time on this day.
Day 2
Finish the approach into Lewiston, ID
Aim for roughly 239 miles and 4.6 hours of wheel time on this day.
Your first comfortable stop window is around 105 miles from American Falls, ID.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Vietnam Veterans Memorial Highway for about 171.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 239 mi from American Falls, ID
· 4h 4m into the drive
The midpoint is around 239 miles from American Falls, ID, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel check
Top up before Vietnam Veterans Memorial Highway if your tank is already low. That segment runs about 171.2 miles.
Overnight split
Hotel stop
For a steadier pace, wrap day one after about 239 miles or 4.6 hours on the road.
Arriving in Lewiston, ID
The final approach into Lewiston, 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 Lewiston, ID.
On a multi-day trip, keep the last day a little lighter so you reach Lewiston, ID with some flexibility left in the schedule.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$75.76 one way
$151.52 round trip
$4.03/gal25.4 MPG avg167 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$79.41
$158.83
premium
$4.53
$85.29
$170.57
diesel
$5.61
$105.56
$211.12
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$76
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$206–$316
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 167.3 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $50 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
143.4
1
$50.20
$22.95
Efficient EV
119.5
1
$41.83
$19.12
EV Truck/SUV
191.2
2
$66.93
$30.60
Gas CO2
167 kg
EV CO2
56 kg (66% 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 Apr 18, 2026
Origin
American Falls, ID
Morning
in American Falls on Saturday
Local time
6:53 AM
MDT
Current temp
27°F
Mostly Clear
SW 8 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued April 18 at 1:24AM MDT until April 18 at 10:00AM MDT by NWS Pocatello ID
Freeze Warning
Freeze Warning issued April 18 at 1:24AM MDT until April 18 at 10:00AM MDT by NWS Pocatello ID
Destination
Lewiston, ID
Late night
in Lewiston on Saturday
Local time
5:53 AM
PDT
Current temp
37°F
Areas Of Frost
E 5 mph0% chanceLive forecast
Freeze Warning
Freeze Warning issued April 18 at 1:24AM MDT until April 18 at 10:00AM MDT by NWS Pocatello ID
Freeze Warning
Freeze Warning issued April 18 at 1:24AM MDT until April 18 at 10:00AM MDT by NWS Pocatello ID
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.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
1 hour earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
10 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
9h 8m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from American Falls, ID to Lewiston, ID covers 478.1 miles and takes about 9h 8m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Vietnam Veterans Memorial Highway, North Norris Avenue, US 95. Expect a mix of highway and local road driving.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 239 miles on day one.
The midpoint is about 239 miles from American Falls, ID. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $75.76 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This drive requires moderate attention. Across 478.1 miles you will encounter 18 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: near the start (Fort Hall Avenue): Navigation decision point; at 210.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 211 miles: Highway fork - watch signs carefully. Lane positioning matters here.
On the drive from American Falls, ID to Lewiston, ID, road signs begin pointing toward Sh-55 along the way.
