How far is Portland, OR from Chinook, MT?
The driving distance from Portland, OR to Chinook, MT is about 847.5 miles (1363.9 km), with a travel time of about 15h 40m by car.
- The straight-line flight distance is about 666.4 miles (1072.4 km).
- For a round trip, plan for roughly 31h 20m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM PDT.
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 15h 40m.
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 Shoshone County, Idaho, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Patchy Fog then Sunny
Driving Route Map
The map below follows the saved road route between Portland and Chinook.
Turn-by-Turn Driving Directions
Step-by-step road directions between Portland and Chinook.
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1
Start on the route
34 m · 10 sec
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2
Turn right onto Northwest Couch Street
52 m · 11 sec · Northwest Couch Street
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3
Turn right onto Northwest 5th Avenue
74 m · 12 sec · Northwest 5th Avenue
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4
Turn left onto West Burnside Street
1039 ft · 52 sec · West Burnside Street
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5
Continue on Burnside Bridge
2236 ft · 1 min · Burnside Bridge
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6
Continue on East Burnside Street
526 ft · 28 sec · East Burnside Street
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7
Turn left onto Northeast Grand Avenue
781 ft · 28 sec · Northeast Grand Avenue
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8
Take the exit slight right toward I 84, US 30 East: Portland Airport, The Dalles
744 ft · 20 sec
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9
Merge slight left onto Banfield Freeway
6.5 mi · 9 min · Banfield Freeway
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10
Continue on Columbia River Highway
158.1 mi · 2 hr 56 min · Columbia River Highway
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11
Continue on Old Oregon Trail Highway
11.4 mi · 12 min · Old Oregon Trail Highway
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12
Take the exit slight right toward I 82 West: Hermiston, Umatilla
1.3 km · 2 min
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13
Continue on McNary Highway
29.9 mi · 33 min · McNary Highway
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14
Keep slight right to continue on Lewis and Clark Trail Highway
3.3 mi · 5 min · Lewis and Clark Trail Highway
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15
Continue on South US 395
1.1 mi · 2 min · South US 395
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16
Continue on Lewis and Clark Trail
4.9 mi · 7 min · Lewis and Clark Trail
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17
Take the exit slight right toward US 395 north, SR 397 south (Oregon Street): Spokane, Finley
859 ft · 21 sec
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18
Keep slight left to continue on US 395
1416 ft · 35 sec
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19
Keep slight right to continue on US 395 North: Spokane
130.7 mi · 2 hr 21 min
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20
Merge slight right
204.2 mi · 3 hr 37 min
-
21
Take the exit slight right toward MT 200 East: Bonner, Great Falls
148.5 mi · 2 hr 48 min
-
22
Take the exit slight right toward I 15 South: Great Falls
1323 ft · 32 sec
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23
Merge slight left onto First Special Service Force Memorial Highway
9.5 mi · 9 min · First Special Service Force Memorial Highway
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24
Take the exit slight right toward I 15 Business
1262 ft · 31 sec
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25
Turn left onto Central Avenue West
1.3 mi · 2 min · Central Avenue West
-
26
Turn left onto 3rd Street Northwest
1.4 mi · 2 min · 3rd Street Northwest
-
27
Continue on Smelter Avenue Northeast
2885 ft · 45 sec · Smelter Avenue Northeast
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28
Turn left onto Old Havre Highway
1.4 km · 1 min · Old Havre Highway
-
29
Turn left onto 15th Street Northeast
107.3 mi · 1 hr 58 min · 15th Street Northeast
-
30
Turn right
3.9 mi · 5 min
-
31
Continue straight
20.8 mi · 24 min
-
32
Turn right onto Indiana Street
1775 ft · 1 min · Indiana Street
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33
Arrive at your destination
0 m · 1 sec · Indiana Street
Car Route Details
A richer read on the saved driving route between Portland and Chinook.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
US 395 North
Merge slight right
204 mi · 03h 37m
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.
Partly Sunny leaving Portland and Patchy Fog then Sunny near Chinook.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Portland to Chinook?
The road trip is about 847.5 miles (1363.9 km) and usually takes 15h 40m 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?
Osburn is a useful midpoint, sitting about 423 miles from Portland and 424.5 miles from Chinook.
How much longer is the road route than the straight-line distance?
The direct path is about 666.4 miles (1072.4 km), while the road route adds roughly 181.1 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 PDT. 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 $149.53 one way or $299.06 round trip. Estimated CO2 is about 265.7 kg one way.
Do you cross a time zone on this route?
Yes. There is about a 1 hour time difference between Portland and Chinook, so arrival and return times should be read in local time.
What should you check before leaving?
Before you leave, expect Partly Sunny around Portland and Patchy Fog then Sunny near Chinook.
Stop Ideas Near Osburn
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 Osburn.
Sandpoint station
Libby
Spokane Intermodal Center
Moscow, Idaho
Flight Path Map
This map shows the direct air route between Portland and Chinook. Straight-line distance: 666.34 mi (1072.37 km).
#1 Portland
The twenty-sixth most populous city in the United States and the center of the Portland metropolitan area.
| Population | 656,751 |
| Coordinates | 45.5234500, -122.6762100 |
| Altitude | 12 |
| Country | United States |
#2 Chinook
City in Montana
| Population | 1,230 |
| Coordinates | 48.5900000, -109.2312800 |
| Altitude | 740 |
| Country | United States |
End: Chinook (-109.23128, 48.59)
Estimated Travel Time
Distance: 1364 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 28h 14m |
| 40 mph (64.37 km/h) | 21h 11m |
| 50 mph (80.47 km/h) | 16h 56m |
| 60 mph (96.56 km/h) | 14h 07m |
| 70 mph (112.65 km/h) | 12h 06m |
| 80 mph (129 km/h) | 10h 34m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.00 | $149.53 | $299.06 |
| Mid-grade | $5.25 | $156.95 | $313.89 |
| Premium | $5.54 | $165.59 | $331.17 |
| Diesel | $6.75 | $201.74 | $403.47 |
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 Oregon · Oct 13, 2026