How far is Southwest Harbor, ME from City of Portland, ME?
The driving distance from Southwest Harbor, ME to City of Portland, ME is about 179.6 miles (289.1 km), with a travel time of about 07h 11m by car.
- The straight-line flight distance is about 101.5 miles (163.4 km).
- For a round trip, plan for roughly 14h 23m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM EDT.
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 07h 11m.
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.
Town in Waldo County, Maine, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Southwest Harbor and City of Portland.
Turn-by-Turn Driving Directions
Step-by-step road directions between Southwest Harbor and City of Portland.
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1
Start on Clark Point Road
72 m · 8 sec · Clark Point Road
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2
Turn right onto Main Street
7 mi · 10 min · Main Street
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3
Continue on State Highway 102
3.5 mi · 5 min · State Highway 102
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4
Continue on Triangle Road
696 ft · 18 sec · Triangle Road
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5
At the end of the road, turn left onto State Highway 3
739 ft · 16 sec · State Highway 3
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6
Continue on Bar Harbor Road
6.7 mi · 12 min · Bar Harbor Road
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7
Continue on High Street
1.1 km · 2 min · High Street
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8
Turn left onto Beechland Road
1 mi · 2 min · Beechland Road
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9
At the end of the road, turn right onto Bayside Road
1 mi · 2 min · Bayside Road
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10
Continue on Water Street
1.3 km · 1 min · Water Street
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11
Turn left onto West Main Street
806 ft · 10 sec · West Main Street
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12
Keep slight right to continue on Main Street
85 m · 4 sec · Main Street
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13
Continue on Bucksport Road
8.5 mi · 10 min · Bucksport Road
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14
Continue on Acadia Highway
9.4 mi · 11 min · Acadia Highway
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15
Continue on Route 1
1.6 km · 1 min · Route 1
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16
Continue on Main Street
41 m · 9 sec · Main Street
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17
Turn left onto Route 1
682 ft · 17 sec · Route 1
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18
Continue on US Highway 1
1.2 mi · 3 min · US Highway 1
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19
Continue on Route 1
13.4 mi · 16 min · Route 1
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20
Continue on Searsport Avenue
2.7 mi · 5 min · Searsport Avenue
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21
Continue on Route 1
1.1 km · 1 min · Route 1
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22
Take the exit slight right
1414 ft · 39 sec
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23
Keep slight right
114 m · 12 sec
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24
Merge slight left onto Belmont Avenue
3.9 mi · 5 min · Belmont Avenue
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25
Continue on Augusta Road
4.8 mi · 5 min · Augusta Road
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26
Continue on Belfast Augusta Road East
3.4 mi · 4 min · Belfast Augusta Road East
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27
Continue on Acadia Highway
4 mi · 4 min · Acadia Highway
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28
Continue on Belfast Augusta Road
17.6 mi · 21 min · Belfast Augusta Road
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29
Continue on Belfast Road
1077 ft · 17 sec · Belfast Road
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30
Continue on North Belfast Avenue
8.1 mi · 12 min · North Belfast Avenue
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31
Turn left onto North Belfast Avenue
1.6 km · 2 min · North Belfast Avenue
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32
At the end of the road, turn left onto Bangor Street
2936 ft · 53 sec · Bangor Street
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33
Enter the roundabout and take exit 2 toward Cony Circle
49 m · 3 sec · Memorial Drive
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34
Exit the rotary onto Memorial Drive
1.1 km · 2 min · Memorial Drive
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35
Enter the roundabout and take exit 3 toward Memorial Circle
122 m · 7 sec · State Street
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36
Exit the rotary onto State Street
1007 ft · 19 sec · State Street
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37
Turn right onto Capitol Street
1.3 km · 1 min · Capitol Street
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38
Turn straight onto Armory Street
915 ft · 20 sec · Armory Street
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39
Turn left onto Western Avenue
1.1 km · 1 min · Western Avenue
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40
Take the exit slight right toward I 95: Portland, Waterville, Bangor
1829 ft · 44 sec
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41
Keep slight left to continue on I-95 South: Portland, Kittery
3262 ft · 1 min
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42
Merge slight left onto Maine Turnpike
5.9 mi · 6 min · Maine Turnpike
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43
Keep slight right to continue on I 295 South, ME 9, ME 126: Gardiner, Brunswick
46.5 mi · 53 min
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44
Take the exit slight right toward US 1A
1.1 mi · 3 min
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45
Continue on Maine State Pier
668 ft · 29 sec · Maine State Pier
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46
Turn slight right
57 m · 14 sec
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47
Turn straight onto Portland - Peaks Island
2.5 mi · 20 min · Portland - Peaks Island
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48
Continue straight
65 m · 16 sec
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49
Continue on Welch Street
1078 ft · 50 sec · Welch Street
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50
Turn right onto Oakland Avenue
594 ft · 26 sec · Oakland Avenue
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51
Turn slight left onto Whitehead Street
107 m · 15 sec · Whitehead Street
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52
Continue on Seashore Avenue
1046 ft · 46 sec · Seashore Avenue
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53
Continue on Seashore Avenue
3044 ft · 2 min · Seashore Avenue
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54
Arrive at your destination
0 m · 1 sec · Seashore Avenue
Car Route Details
A richer read on the saved driving route between Southwest Harbor and City of Portland.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 295 South
Keep slight right to continue on I 295 South, ME 9, ME 126: Gardiner, Brunswick
46.5 mi · 00h 53m
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 Southwest Harbor and Mostly Cloudy near City of Portland.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Southwest Harbor to City of Portland?
The road trip is about 179.6 miles (289.1 km) and usually takes 07h 11m 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?
Palermo is a useful midpoint, sitting about 81.4 miles from Southwest Harbor and 98.2 miles from City of Portland.
How much longer is the road route than the straight-line distance?
The direct path is about 101.5 miles (163.4 km), while the road route adds roughly 78.1 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 EDT. 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 $25.01 one way or $50.02 round trip. Estimated CO2 is about 56.3 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Southwest Harbor and Mostly Cloudy near City of Portland.
Stop Ideas Near Palermo
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 Palermo.
Augusta, ME
Waldoboro, Maine
Belfast, Maine
Camden/Rockport, Maine
Flight Path Map
This map shows the direct air route between Southwest Harbor and City of Portland. Straight-line distance: 101.56 mi (163.44 km).
#1 Southwest Harbor
City in Hancock County, Maine, United States of America
| Population | 1,793 |
| Coordinates | 44.2798000, -68.3250200 |
| Altitude | 13 |
| Country | United States |
#2 City of Portland
The twenty-eighth most populous city in the United States and the center of the Portland metropolitan area.
| Population | 653,115 |
| Coordinates | 43.6470800, -70.1682300 |
| Altitude | 36 |
| Country | United States |
End: Seashore Avenue (-70.181795, 43.65347)
Estimated Travel Time
Distance: 289 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 59m |
| 40 mph (64.37 km/h) | 04h 29m |
| 50 mph (80.47 km/h) | 03h 35m |
| 60 mph (96.56 km/h) | 02h 59m |
| 70 mph (112.65 km/h) | 02h 33m |
| 80 mph (129 km/h) | 02h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $25.01 | $50.02 |
| Mid-grade | $4.46 | $28.26 | $56.51 |
| Premium | $4.86 | $30.80 | $61.60 |
| Diesel | $6.00 | $38.02 | $76.04 |
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 Maine · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.