How far is Diamond Ridge, AK from Sterling, AK?
The driving distance from Diamond Ridge, AK to Sterling, AK is about 86.3 miles (138.9 km), with a travel time of about 02h 05m by car.
- The straight-line flight distance is about 65.4 miles (105.3 km).
- For a round trip, plan for roughly 04h 11m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM AKDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 02h 05m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
Census-designated place in Kenai Peninsula Borough, Alaska
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Cloudy then Slight Chance Light Snow
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Diamond Ridge and Sterling.
Turn-by-Turn Driving Directions
Step-by-step road directions between Diamond Ridge and Sterling.
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1
Start on Autumn Star Street
1094 ft · 48 sec · Autumn Star Street
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2
Turn straight onto Skyline Drive
1.2 km · 2 min · Skyline Drive
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3
Turn right onto Diamond Ridge Road
4.8 mi · 10 min · Diamond Ridge Road
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4
At the end of the road, turn right onto Sterling Highway
80.5 mi · 1 hr 53 min · Sterling Highway
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5
Turn right onto Great Land Street
24 m · 3 sec · Great Land Street
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6
Arrive at your destination
0 m · 1 sec · Great Land Street
Car Route Details
A richer read on the saved driving route between Diamond Ridge and Sterling.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Sterling Highway
At the end of the road, turn right onto Sterling Highway
80.5 mi · 01h 53m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Partly Cloudy then Slight Chance Light Snow leaving Diamond Ridge and Partly Cloudy near Sterling.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Diamond Ridge to Sterling?
The road trip is about 86.3 miles (138.9 km) and usually takes 02h 05m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Cohoe is a useful midpoint, sitting about 43.1 miles from Diamond Ridge and 43.2 miles from Sterling.
How much longer is the road route than the straight-line distance?
The direct path is about 65.4 miles (105.3 km), while the road route adds roughly 20.9 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 8:00 AM to 10:00 AM AKDT. If you want a more comfortable same-day return, try to leave by 2:18 PM AKDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $15.10 one way or $30.20 round trip. Estimated CO2 is about 27.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Cloudy then Slight Chance Light Snow around Diamond Ridge and Partly Cloudy near Sterling.
Flight Path Map
This map shows the direct air route between Diamond Ridge and Sterling. Straight-line distance: 65.46 mi (105.35 km).
#1 Diamond Ridge
Census-designated place in Kenai Peninsula Borough, Alaska
| Population | 1,156 |
| Coordinates | 59.6761100, -151.5575000 |
| Altitude | 324 |
| Country | United States |
#2 Sterling
Sterling is a place in Alaska, United States.
| Population | 0 |
| Coordinates | 60.5372200, -150.7647200 |
| Altitude | 67 |
| Country | United States |
End: Sterling (-150.76472, 60.53722)
Estimated Travel Time
Distance: 139 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 52m |
| 40 mph (64.37 km/h) | 02h 09m |
| 50 mph (80.47 km/h) | 01h 43m |
| 60 mph (96.56 km/h) | 01h 26m |
| 70 mph (112.65 km/h) | 01h 13m |
| 80 mph (129 km/h) | 01h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $15.10 | $30.20 |
| Mid-grade | $5.34 | $16.28 | $32.56 |
| Premium | $5.57 | $16.98 | $33.95 |
| Diesel | $6.37 | $19.42 | $38.83 |
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 Alaska · 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.