How far is Ketchikan, AK from Petersburg, AK?
The driving distance from Ketchikan, AK to Petersburg, AK is about 151.7 miles (244.2 km), with a travel time of about 09h 08m by car.
- The straight-line flight distance is about 113.5 miles (182.6 km).
- For a round trip, plan for roughly 18h 17m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM AKDT.
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 08m.
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 Prince of Wales-Hyder Census Area, Alaska, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny then Slight Chance Snow Showers
Driving Route Map
The map below follows the saved road route between Ketchikan and Petersburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Ketchikan and Petersburg.
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1
Start on the route
760 ft · 34 sec
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2
At the end of the road, turn right onto Water Street
66 m · 12 sec · Water Street
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3
Continue on Water Street
1875 ft · 37 sec · Water Street
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4
Turn left onto Tongass Avenue
1.6 mi · 3 min · Tongass Avenue
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5
Turn left
39 m · 5 sec
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6
Turn right
131 m · 37 sec
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7
Turn left onto Ketchikan Ferry Terminal Road
143 m · 41 sec · Ketchikan Ferry Terminal Road
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8
Turn slight right onto Alaska Marine Highway - Ketchikan ↔ Wrangell
102.1 mi · 6 hr · Alaska Marine Highway - Ketchikan ↔ Wrangell
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9
Turn sharp left onto Alaska Marine Highway - Wrangell-Petersburg
46.2 mi · 3 hr · Alaska Marine Highway - Wrangell-Petersburg
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10
Continue straight
620 ft · 45 sec
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11
Keep slight left
47 m · 17 sec
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12
At the end of the road, turn left onto South Nordic Drive
1.4 km · 2 min · South Nordic Drive
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13
Turn right onto Fram Street
115 m · 17 sec · Fram Street
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14
Arrive at your destination
0 m · 1 sec · Fram Street
Car Route Details
A richer read on the saved driving route between Ketchikan and Petersburg.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Alaska Marine Highway - Ketchikan ↔ Wrangell
Turn slight right onto Alaska Marine Highway - Ketchikan ↔ Wrangell
102 mi · 06h 00m
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.
Mostly Sunny leaving Ketchikan and Mostly Sunny then Slight Chance Snow Showers near Petersburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Ketchikan to Petersburg?
The road trip is about 151.7 miles (244.2 km) and usually takes 09h 08m 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?
Coffman Cove is a useful midpoint, sitting about 75.7 miles from Ketchikan and 76.1 miles from Petersburg.
How much longer is the road route than the straight-line distance?
The direct path is about 113.5 miles (182.6 km), while the road route adds roughly 38.2 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 AKDT. 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 $26.49 one way or $52.98 round trip. Estimated CO2 is about 47.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Ketchikan and Mostly Sunny then Slight Chance Snow Showers near Petersburg.
Flight Path Map
This map shows the direct air route between Ketchikan and Petersburg. Straight-line distance: 113.44 mi (182.56 km).
#1 Ketchikan
City in Alaska, USA
| Population | 8,187 |
| Coordinates | 55.3418000, -131.6475700 |
| Altitude | 8 |
| Country | United States |
#2 Petersburg
Petersburg is a place in Alaska, United States.
| Population | 0 |
| Coordinates | 56.8125000, -132.9555600 |
| Altitude | 11 |
| Country | United States |
End: Petersburg (-132.95556, 56.8125)
Estimated Travel Time
Distance: 244 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 03m |
| 40 mph (64.37 km/h) | 03h 47m |
| 50 mph (80.47 km/h) | 03h 02m |
| 60 mph (96.56 km/h) | 02h 31m |
| 70 mph (112.65 km/h) | 02h 10m |
| 80 mph (129 km/h) | 01h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $26.49 | $52.98 |
| Mid-grade | $5.34 | $28.56 | $57.12 |
| Premium | $5.57 | $29.78 | $59.56 |
| Diesel | $6.37 | $34.06 | $68.12 |
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.