How far is Penobscot, ME from South Portland, ME?
The driving distance from Penobscot, ME to South Portland, ME is about 137.4 miles (221.1 km), with a travel time of about 02h 33m by car.
- The straight-line flight distance is about 94.9 miles (152.7 km).
- For a round trip, plan for roughly 05h 06m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
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 33m.
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.
Town in Kennebec County, Maine, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Penobscot and South Portland.
Turn-by-Turn Driving Directions
Step-by-step road directions between Penobscot and South Portland.
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1
Start on North Penobscot Road
5 mi · 9 min · North Penobscot Road
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2
At the end of the road, turn left onto Front Ridge Road
3.7 mi · 6 min · Front Ridge Road
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3
At the end of the road, turn left onto Acadia Highway
3.4 mi · 4 min · Acadia Highway
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4
Continue on Route 1
1.6 km · 1 min · Route 1
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5
Continue on Main Street
41 m · 9 sec · Main Street
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6
Turn left onto Route 1
682 ft · 17 sec · Route 1
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7
Continue on US Highway 1
1.2 mi · 3 min · US Highway 1
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8
Continue on Route 1
13.4 mi · 16 min · Route 1
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9
Continue on Searsport Avenue
2.7 mi · 5 min · Searsport Avenue
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10
Continue on Route 1
1.1 km · 1 min · Route 1
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11
Take the exit slight right
1414 ft · 39 sec
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12
Keep slight right
114 m · 12 sec
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13
Merge slight left onto Belmont Avenue
3.9 mi · 5 min · Belmont Avenue
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14
Continue on Augusta Road
4.8 mi · 5 min · Augusta Road
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15
Continue on Belfast Augusta Road East
3.4 mi · 4 min · Belfast Augusta Road East
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16
Continue on Acadia Highway
4 mi · 4 min · Acadia Highway
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17
Continue on Belfast Augusta Road
17.6 mi · 21 min · Belfast Augusta Road
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18
Continue on Belfast Road
1077 ft · 17 sec · Belfast Road
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19
Continue on North Belfast Avenue
8.1 mi · 12 min · North Belfast Avenue
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20
Turn left onto North Belfast Avenue
1.6 km · 2 min · North Belfast Avenue
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21
At the end of the road, turn left onto Bangor Street
2936 ft · 53 sec · Bangor Street
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22
Enter the roundabout and take exit 2 toward Cony Circle
49 m · 3 sec · Memorial Drive
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23
Exit the rotary onto Memorial Drive
1.1 km · 2 min · Memorial Drive
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24
Enter the roundabout and take exit 3 toward Memorial Circle
122 m · 7 sec · State Street
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25
Exit the rotary onto State Street
1007 ft · 19 sec · State Street
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26
Turn right onto Capitol Street
1.3 km · 1 min · Capitol Street
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27
Turn straight onto Armory Street
915 ft · 20 sec · Armory Street
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28
Turn left onto Western Avenue
1.1 km · 1 min · Western Avenue
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29
Take the exit slight right toward I 95: Portland, Waterville, Bangor
1829 ft · 44 sec
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30
Keep slight left to continue on I-95 South: Portland, Kittery
3262 ft · 1 min
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31
Merge slight left onto Maine Turnpike
5.9 mi · 6 min · Maine Turnpike
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32
Keep slight right to continue on I 295 South, ME 9, ME 126: Gardiner, Brunswick
46.5 mi · 53 min
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33
Take the exit slight right toward US 1A
2130 ft · 1 min
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34
Turn right onto Marginal Way
2795 ft · 1 min · Marginal Way
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35
Continue on State Street
1.6 km · 2 min · State Street
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36
Continue on Casco Bay Bridge
1.1 mi · 2 min · Casco Bay Bridge
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37
Continue on Broadway
1.6 km · 2 min · Broadway
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38
Turn sharp right onto Pine Street
18 m · 3 sec · Pine Street
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39
Arrive at your destination
0 m · 1 sec · Pine Street
Car Route Details
A richer read on the saved driving route between Penobscot and South 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.
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.
Mostly Sunny leaving Penobscot and Mostly Sunny near South Portland.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Penobscot to South Portland?
The road trip is about 137.4 miles (221.1 km) and usually takes 02h 33m 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?
Windsor is a useful midpoint, sitting about 67.4 miles from Penobscot and 70 miles from South Portland.
How much longer is the road route than the straight-line distance?
The direct path is about 94.9 miles (152.7 km), while the road route adds roughly 42.5 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 EDT. If you want a more comfortable same-day return, try to leave by 1:24 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.13 one way or $38.27 round trip. Estimated CO2 is about 43.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Penobscot and Mostly Sunny near South Portland.
Stop Ideas Near Windsor
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Waterville Opera House
Augusta City Hall
Inn At City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Windsor.
Augusta, ME
Waldoboro, Maine
Damariscotta, Maine
Wiscasset, Maine
Flight Path Map
This map shows the direct air route between Penobscot and South Portland. Straight-line distance: 94.89 mi (152.71 km).
#1 Penobscot
Town in Hancock County, Maine, United States
| Population | 1,220 |
| Coordinates | 44.4645200, -68.7111400 |
| Altitude | 12 |
| Country | United States |
#2 South Portland
City in Cumberland County, Maine, USA
| Population | 25,950 |
| Coordinates | 43.6414700, -70.2408800 |
| Altitude | 7 |
| Country | United States |
End: Pine Street (-70.240981, 43.641461)
Estimated Travel Time
Distance: 221 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 34m |
| 40 mph (64.37 km/h) | 03h 26m |
| 50 mph (80.47 km/h) | 02h 44m |
| 60 mph (96.56 km/h) | 02h 17m |
| 70 mph (112.65 km/h) | 01h 57m |
| 80 mph (129 km/h) | 01h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $19.13 | $38.27 |
| Mid-grade | $4.46 | $21.62 | $43.23 |
| Premium | $4.86 | $23.56 | $47.12 |
| Diesel | $6.00 | $29.09 | $58.17 |
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 04, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.