How far is Caldwell, ID from American Falls, ID?
The driving distance from Caldwell, ID to American Falls, ID is about 234.2 miles (376.9 km), with a travel time of about 03h 49m by car.
- The straight-line flight distance is about 202.3 miles (325.5 km).
- For a round trip, plan for roughly 07h 39m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 03h 49m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
City in Gooding County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain then Showers And Thunderstorms
Chance Light Rain
Driving Route Map
The map below follows the saved road route between Caldwell and American Falls.
Turn-by-Turn Driving Directions
Step-by-step road directions between Caldwell and American Falls.
-
1
Start on the route
28 m · 12 sec
-
2
Turn left onto Cleveland Boulevard
22 m · 4 sec · Cleveland Boulevard
-
3
Turn right
43 m · 13 sec
-
4
Turn right
46 m · 13 sec
-
5
Turn right onto South 10th Avenue
1.1 km · 2 min · South 10th Avenue
-
6
Take the ramp slight right
2822 ft · 1 min
-
7
Merge slight left onto Vietnam Veterans Memorial Highway
20.9 mi · 24 min · Vietnam Veterans Memorial Highway
-
8
Keep slight right to continue on Vietnam Veterans Memorial Highway
172.3 mi · 2 hr 43 min · Vietnam Veterans Memorial Highway
-
9
Continue straight
36.4 mi · 34 min
-
10
Take the exit slight right toward I 86 Business, ID 37: Rockland, American Falls
1082 ft · 29 sec
-
11
Turn left onto South Frontage Road
2.1 mi · 3 min · South Frontage Road
-
12
Continue on Lincoln Street
2230 ft · 38 sec · Lincoln Street
-
13
Continue on Fort Hall Avenue
2888 ft · 1 min · Fort Hall Avenue
-
14
Turn left
53 m · 13 sec
-
15
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Caldwell and American Falls.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Vietnam Veterans Memorial Highway
Keep slight right to continue on Vietnam Veterans Memorial Highway
172 mi · 02h 43m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Light Rain then Showers And Thunderstorms leaving Caldwell and Chance Light Rain near American Falls.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Caldwell to American Falls?
The road trip is about 234.2 miles (376.9 km) and usually takes 03h 49m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Bliss is a useful midpoint, sitting about 116.9 miles from Caldwell and 117.3 miles from American Falls.
How much longer is the road route than the straight-line distance?
The direct path is about 202.3 miles (325.5 km), while the road route adds roughly 31.9 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 9:20 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.16 one way or $64.31 round trip. Estimated CO2 is about 73.4 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain then Showers And Thunderstorms around Caldwell and Chance Light Rain near American Falls.
Stop Ideas Near Bliss
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 Bliss.
Twin Falls, Idaho
Flight Path Map
This map shows the direct air route between Caldwell and American Falls. Straight-line distance: 202.24 mi (325.47 km).
#1 Caldwell
The most populous city in Canyon County, Idaho.
| Population | 58,481 |
| Coordinates | 43.6629400, -116.6873600 |
| Altitude | 724 |
| Country | United States |
#2 American Falls
City in Idaho
| Population | 4,315 |
| Coordinates | 42.7860200, -112.8544400 |
| Altitude | 1343 |
| Country | United States |
End: American Falls (-112.85444, 42.78602)
Estimated Travel Time
Distance: 377 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 48m |
| 40 mph (64.37 km/h) | 05h 51m |
| 50 mph (80.47 km/h) | 04h 41m |
| 60 mph (96.56 km/h) | 03h 54m |
| 70 mph (112.65 km/h) | 03h 20m |
| 80 mph (129 km/h) | 02h 55m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $32.16 | $64.31 |
| Mid-grade | $4.23 | $34.95 | $69.90 |
| Premium | $4.55 | $37.57 | $75.15 |
| Diesel | $5.41 | $44.70 | $89.41 |
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 · Apr 15, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.