How far is Twin Falls, ID from Lewiston, ID?
The driving distance from Twin Falls, ID to Lewiston, ID is about 397.8 miles (640.2 km), with a travel time of about 07h 02m by car.
- The straight-line flight distance is about 294.5 miles (474 km).
- For a round trip, plan for roughly 14h 05m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 07h 02m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Rural city in and the county seat of Valley County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Twin Falls and Lewiston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Twin Falls and Lewiston.
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1
Start on Shoshone Street East
25 m · 4 sec · Shoshone Street East
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2
Turn right onto 11th Avenue East
69 m · 17 sec · 11th Avenue East
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3
Turn sharp right onto Addison Avenue
106 m · 18 sec · Addison Avenue
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4
Turn left onto Blue Lakes Boulevard North
2 mi · 4 min · Blue Lakes Boulevard North
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5
Continue on North 3000 East Road
3.7 mi · 5 min · North 3000 East Road
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6
Take the exit straight toward I 84 West
1.2 km · 2 min
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7
Merge slight left onto Vietnam Veterans Memorial Highway
123 mi · 1 hr 56 min · Vietnam Veterans Memorial Highway
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8
Take the exit slight right toward Cole Road, Overland Road
1061 ft · 26 sec
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9
Keep slight left to continue on Cole Road
71 m · 13 sec
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10
Turn left onto South Cole Road
1.3 km · 2 min · South Cole Road
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11
Continue on North Cole Road
2.6 mi · 6 min · North Cole Road
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12
At the end of the road, turn left onto North Mountain View Drive
1056 ft · 39 sec · North Mountain View Drive
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13
Turn right onto North Glenwood Street
1.7 mi · 4 min · North Glenwood Street
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14
Turn left onto West State Street
2.3 mi · 4 min · West State Street
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15
Take the ramp slight right toward SH-55
156 m · 14 sec
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16
Merge slight left onto North Horseshoe Bend Road
8.8 mi · 12 min · North Horseshoe Bend Road
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17
Continue on Payette River Scenic Byway
5.9 mi · 7 min · Payette River Scenic Byway
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18
Continue on Highway 55
2.4 mi · 3 min · Highway 55
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19
Continue on Horseshoe Bend Road
2105 ft · 30 sec · Horseshoe Bend Road
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20
Continue on Highway 55
16 mi · 24 min · Highway 55
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21
Continue on Horseshoe Bend Road
18.5 mi · 25 min · Horseshoe Bend Road
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22
Continue on Main Street
45.6 mi · 1 hr 2 min · Main Street
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23
Turn left onto Deinhard Lane
1.6 mi · 3 min · Deinhard Lane
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24
Continue on Boydstun Street
1.5 km · 2 min · Boydstun Street
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25
At the end of the road, turn left onto West Lake Street
10.6 mi · 16 min · West Lake Street
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26
Turn right onto North Norris Avenue
76.4 mi · 1 hr 27 min · North Norris Avenue
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27
Turn left onto Johnston Road
2.2 mi · 5 min · Johnston Road
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28
At the end of the road, turn left
67.5 mi · 1 hr 19 min
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29
Keep slight left to continue on Lewiston
1.6 mi · 3 min
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30
Turn right onto Idaho Street
1.2 km · 2 min · Idaho Street
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31
Turn left
32 m · 8 sec
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32
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Twin Falls and Lewiston.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Vietnam Veterans Memorial Highway
Merge slight left onto Vietnam Veterans Memorial Highway
123 mi · 01h 56m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Twin Falls and Mostly Sunny near Lewiston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Twin Falls to Lewiston?
The road trip is about 397.8 miles (640.2 km) and usually takes 07h 02m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Cascade is a useful midpoint, sitting about 198.3 miles from Twin Falls and 199.5 miles from Lewiston.
How much longer is the road route than the straight-line distance?
The direct path is about 294.5 miles (474 km), while the road route adds roughly 103.3 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $54.66 one way or $109.32 round trip. Estimated CO2 is about 124.8 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Twin Falls and Lewiston, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Sunny around Twin Falls and Mostly Sunny near Lewiston.
Stop Ideas Near Cascade
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 Cascade.
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Nampa, Idaho
Flight Path Map
This map shows the direct air route between Twin Falls and Lewiston. Straight-line distance: 294.54 mi (474.01 km).
#1 Twin Falls
The most populous city in Twin Falls County, Idaho.
| Population | 50,197 |
| Coordinates | 42.5629700, -114.4608700 |
| Altitude | 1138 |
| Country | United States |
#2 Lewiston
City in Nez Perce County, Idaho, USA
| Population | 32,788 |
| Coordinates | 46.4165500, -117.0176600 |
| Altitude | 227 |
| Country | United States |
End: Idaho Street (-117.0175, 46.416816)
Estimated Travel Time
Distance: 640 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 15m |
| 40 mph (64.37 km/h) | 09h 56m |
| 50 mph (80.47 km/h) | 07h 57m |
| 60 mph (96.56 km/h) | 06h 37m |
| 70 mph (112.65 km/h) | 05h 40m |
| 80 mph (129 km/h) | 04h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $54.66 | $109.32 |
| Mid-grade | $4.23 | $59.40 | $118.81 |
| Premium | $4.55 | $63.87 | $127.74 |
| Diesel | $5.41 | $75.98 | $151.97 |
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 · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.