How far is Pocatello, ID from Saint Maries, ID?
The driving distance from Pocatello, ID to Saint Maries, ID is about 539.3 miles (867.9 km), with a travel time of about 09h 04m by car.
- The straight-line flight distance is about 366.7 miles (590.2 km).
- For a round trip, plan for roughly 18h 08m 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 09h 04m.
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.
City in Lemhi County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Snow Showers
Slight Chance Light Rain
Driving Route Map
The map below follows the saved road route between Pocatello and Saint Maries.
Turn-by-Turn Driving Directions
Step-by-step road directions between Pocatello and Saint Maries.
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1
Start on North 7th Avenue
70 m · 16 sec · North 7th Avenue
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2
Turn left onto East Wyeth Street
1086 ft · 50 sec · East Wyeth Street
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3
Turn right onto North 10th Avenue
1452 ft · 45 sec · North 10th Avenue
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4
Turn left onto East Center Street
1.5 km · 2 min · East Center Street
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5
Turn left
2604 ft · 37 sec
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6
Merge slight left onto Veterans Memorial Highway
247 mi · 3 hr 53 min · Veterans Memorial Highway
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7
Take the exit slight left toward I 90 West: Missoula
2808 ft · 1 min
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8
Merge slight left onto I 90 West: Missoula
256.8 mi · 4 hr 16 min
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9
Take the exit slight right toward ID 3: Harrison, Rose Lake, Saint Maries
1038 ft · 31 sec
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10
Turn left onto South Highway 3
32.6 mi · 48 min · South Highway 3
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11
Continue on South 3rd Street
882 ft · 29 sec · South 3rd Street
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12
Turn right onto West Jefferson Avenue
15 m · 2 sec · West Jefferson Avenue
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13
Arrive at your destination
0 m · 1 sec · West Jefferson Avenue
Car Route Details
A richer read on the saved driving route between Pocatello and Saint Maries.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 90 West
Merge slight left onto I 90 West: Missoula
257 mi · 04h 16m
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.
Chance Snow Showers leaving Pocatello and Slight Chance Light Rain near Saint Maries.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Pocatello to Saint Maries?
The road trip is about 539.3 miles (867.9 km) and usually takes 09h 04m 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?
Salmon is a useful midpoint, sitting about 269.4 miles from Pocatello and 269.9 miles from Saint Maries.
How much longer is the road route than the straight-line distance?
The direct path is about 366.7 miles (590.2 km), while the road route adds roughly 172.6 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 $74.08 one way or $148.17 round trip. Estimated CO2 is about 169.1 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Pocatello and Saint Maries, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Chance Snow Showers around Pocatello and Slight Chance Light Rain near Saint Maries.
Flight Path Map
This map shows the direct air route between Pocatello and Saint Maries. Straight-line distance: 366.71 mi (590.17 km).
#1 Pocatello
The most populous city in Bannock County, Idaho.
| Population | 56,637 |
| Coordinates | 42.8713000, -112.4455300 |
| Altitude | 1360 |
| Country | United States |
#2 Saint Maries
River in the United States of America
| Population | 2,448 |
| Coordinates | 47.3143500, -116.5626700 |
| Altitude | 668 |
| Country | United States |
End: Saint Maries (-116.56267, 47.31435)
Estimated Travel Time
Distance: 868 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 17h 58m |
| 40 mph (64.37 km/h) | 13h 28m |
| 50 mph (80.47 km/h) | 10h 47m |
| 60 mph (96.56 km/h) | 08h 59m |
| 70 mph (112.65 km/h) | 07h 42m |
| 80 mph (129 km/h) | 06h 43m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $74.08 | $148.17 |
| Mid-grade | $4.23 | $80.52 | $161.03 |
| Premium | $4.55 | $86.57 | $173.13 |
| Diesel | $5.41 | $102.99 | $205.98 |
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 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.