The drive from Lewiston Orchards, ID to Saint Anthony, ID covers 537.6 miles and takes about 10h 10m behind the wheel.
It usually feels better as a 2-day road trip than as one long push.
The route leans on US 12, I 15, Jeannette Rankin Memorial Highway for much of the mileage,
and the overall profile is long-distance drive.
The longest uninterrupted segment is about 212.4 miles on US 12.
At current regular gas prices, budget about $85.19 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
268.8 miles from Lewiston Orchards, ID
A natural place for your longest stop of the day
, about 5h 42m into the drive
.
Drive Character
At 537.6 miles and 10h 10m of driving, this is a route where fuel stops, weather, and timing matter more than any single turn. The main roads are US 12 and I 15.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 30 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
US 12 is the longest continuous segment at about 212.4 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on US 12 and I 15. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive.
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 19 significant decision points across 537.6 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: near the start: Navigation decision point; near the start (Bryden Avenue): Navigation decision point; at 4 miles (US 12): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 19 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
5
0 mi into trip|~0m in
At end of road, turn right
Navigation decision point
5
0 mi into trip|~0m in|Bryden Avenue
Turn right onto Bryden Avenue
Navigation decision point
8
4 mi into trip|~9m in|US 12
Keep slight right at fork onto US 12 toward US 95 South: Missoula, Boise
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight lane.
Toward US 95 South: Missoula, Boise
5
331.3 mi into trip|~6h 42m in
Take the exit toward I 15 South: Dillon, Idaho Falls
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 15 South: Dillon, Idaho Falls
5
505.5 mi into trip|~9h 26m in
Take the exit toward ID 33: Mud Lake, Rexburg
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward ID 33: Mud Lake, Rexburg
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Lewiston Orchards, ID and Saint Anthony, ID, road signs point toward Idaho Falls and Rexburg.
Idaho Falls
331.3 mi in|~6h 42m
Rexburg
505.5 mi in|~9h 26m
Main Roads
Road
Distance
Duration
US 12
212.4 mi
4h 42m
I 15
173.6 mi
2h 42m
Jeannette Rankin Memorial Highway
111.5 mi
1h 45m
East 1500 North
19.4 mi
28m
Yellowstone Highway
9.5 mi
10m
Brooks Street
3.3 mi
4m
Idaho Medal of Honor Highway
1.9 mi
2m
Thain Road
1.9 mi
4m
Longest stretch:
US 12
— 212.4 mi, about 4h 42m
Turn-by-Turn Driving Directions
Step-by-step road directions between Lewiston Orchards, ID and Saint Anthony, ID.
1
Start on this road
145 ft·12 sec·this road
2
At end of road, turn right
62 ft·6 sec
3
Turn right onto Bryden Avenue
207 ft·10 sec·Bryden Avenue
4
Turn slight right onto Thain Road
1.9 mi·4 min·Thain Road
5
Continue on 21st Street
1.1 mi·2 min·21st Street
6
Continue on US 12
1.0 mi·2 min·US 12
7
Keep slight right at fork onto US 12
7.4 mi·8 min·US 12
Toward US 95 South: Missoula, BoiseUse the straight lane.
8
Take the exit onto US 12
164 mi·3 hr 42 min·US 12
Toward US 12 East
9
Continue on US 12
33 mi·39 min·US 12
10
Continue on US 12; US 93
7.0 mi·9 min·US 12; US 93
11
Continue on Brooks Street
3.3 mi·4 min·Brooks Street
Use the straight / right lanes.
12
Continue on US 12
356 ft·16 sec·South Higgins Avenue
Use the left lane.
13
Turn right onto US 12
0.4 mi·36 sec·South 6th Street East
14
Turn left onto Arthur Avenue
0.2 mi·13 sec·Arthur Avenue
15
Continue on US 12
0.2 mi·15 sec·Madison Street
16
Take the exit onto US 12
0.2 mi·26 sec·US 12
17
Turn left onto I 90 Bus; US 12
435 ft·5 sec·Van Buren Street
18
Take the exit onto I 90 Business; US 12
0.2 mi·29 sec·I 90 Business; US 12
19
Merge onto I 90; US 12; MT 200
111 mi·1 hr 45 min·Jeannette Rankin Memorial Highway
20
Take the exit
0.5 mi·1 min
Toward I 15 South: Dillon, Idaho Falls
21
Merge onto I 15
174 mi·2 hr 42 min·I 15
22
Take the exit
0.2 mi·29 sec
Toward ID 33: Mud Lake, Rexburg
23
Turn left onto ID 33
19 mi·28 min·East 1500 North
24
Take the ramp
0.4 mi·54 sec
Toward US 20
25
Merge onto US 20
9.5 mi·10 min·Yellowstone Highway
26
Continue on US 20
1.9 mi·2 min·Idaho Medal of Honor Highway
27
Take the exit onto US 20 Business
0.4 mi·54 sec·US 20 Business
28
Turn left onto US 20 Business
0.3 mi·36 sec·South Bridge Street
29
Turn right onto East Main Street
87 ft·3 sec·East Main Street
30
Arrive at destination
East Main Street
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 268.8 miles from Lewiston Orchards, ID, or about 5h 42m into the drive.
The longest continuous stretch on this route runs about 212.4 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 118 miles or 2h 42m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 268.8 miles or 5h 42m 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 268.8 miles or 5h 42m
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 9h
Traffic, exits, and arrival timing usually matter more near Saint Anthony, ID than in the middle of the route.
Before You Leave
+
Open the route before leaving Lewiston Orchards, 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 Lewiston Orchards, ID
Aim for roughly 269 miles and 5.1 hours of wheel time on this day.
Day 2
Finish the approach into Saint Anthony, ID
Aim for roughly 269 miles and 5.1 hours of wheel time on this day.
Your first comfortable stop window is around 118 miles from Lewiston Orchards, 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 US 12 for about 212.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 268.8 mi from Lewiston Orchards, ID
· 5h 42m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Nez Perce National Historical Park
National Historical Park
Since time immemorial, the valleys, prairies, mountains, and plateaus of the inland northwest have been home to the nimíipuu (Nez Perce) people. Extremely resilient, they survived the settling of the...
8 mi from route
~20 min detour
Free
near mile 74.1
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$85.19 one way
$170.38 round trip
$4.03/gal25.4 MPG avg188 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$89.30
$178.59
premium
$4.53
$95.90
$191.80
diesel
$5.61
$118.70
$237.39
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$85
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$215–$325
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 188.1 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $56 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
161.3
1
$56.45
$25.80
Efficient EV
134.4
1
$47.04
$21.50
EV Truck/SUV
215
2
$75.26
$34.41
Gas CO2
188 kg
EV CO2
63 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 15, 2026
Origin
Lewiston Orchards, ID
Morning
in Lewiston Orchards on Friday
Local time
10:31 AM
PDT
Current temp
62°F
Unavailable
Live forecast
Destination
Saint Anthony, ID
Morning
in Saint Anthony on Friday
Local time
11:31 AM
MDT
Current temp
65°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.
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 later
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
3 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
10h 10m 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 Lewiston Orchards, ID to Saint Anthony, ID covers 537.6 miles and takes about 10h 10m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are US 12, I 15, Jeannette Rankin Memorial Highway. 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 269 miles on day one.
The midpoint is about 268.8 miles from Lewiston Orchards, ID. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $85.19 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 is a demanding drive. With 19 significant decision points across 537.6 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.
The main spots that need attention: near the start: Navigation decision point; near the start (Bryden Avenue): Navigation decision point; at 4 miles (US 12): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Lewiston Orchards, ID and Saint Anthony, ID, road signs point toward Idaho Falls and Rexburg.
Yes. Nearby national parks include Nez Perce National Historical Park.
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, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
