How far is Charleston, ME from South Portland, ME?
The driving distance from Charleston, ME to South Portland, ME is about 132.7 miles (213.5 km), with a travel time of about 02h 18m by car.
- The straight-line flight distance is about 116 miles (186.7 km).
- For a round trip, plan for roughly 04h 37m 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 18m.
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 Maine, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Clear
Driving Route Map
The map below follows the saved road route between Charleston and South Portland.
Turn-by-Turn Driving Directions
Step-by-step road directions between Charleston and South Portland.
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1
Start on the route
55 m · 8 sec
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2
Turn straight onto Main Road
4 mi · 7 min · Main Road
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3
Turn left onto Dover Road
1721 ft · 29 sec · Dover Road
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4
Continue on Main Street
1.5 mi · 2 min · Main Street
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5
Turn right onto Exeter Road
7.2 mi · 13 min · Exeter Road
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6
At the end of the road, turn left onto Exeter Road
1.1 mi · 2 min · Exeter Road
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7
Continue on Exeter Road
3.1 mi · 5 min · Exeter Road
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8
Keep slight left to continue on Exeter Road
4.3 mi · 8 min · Exeter Road
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9
At the end of the road, turn left onto Dexter Road
127 m · 7 sec · Dexter Road
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10
Continue on Newport Road
1.4 mi · 2 min · Newport Road
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11
Continue on Moosehead Trail
4.7 mi · 7 min · Moosehead Trail
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12
Enter the roundabout and take exit 2 toward Ox Bow Road
43 m · 3 sec · Ox Bow Road
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13
Exit the roundabout onto Ox Bow Road
1284 ft · 44 sec · Ox Bow Road
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14
Take the exit slight right
1648 ft · 40 sec
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15
Merge slight right
53.5 mi · 58 min
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16
Keep slight right to continue on I 295 South, ME 9, ME 126: Gardiner, Brunswick
46.5 mi · 53 min
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17
Take the exit slight right toward US 1A
2130 ft · 1 min
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18
Turn right onto Marginal Way
2795 ft · 1 min · Marginal Way
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19
Continue on State Street
1.6 km · 2 min · State Street
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20
Continue on Casco Bay Bridge
1.1 mi · 2 min · Casco Bay Bridge
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21
Continue on Broadway
1.6 km · 2 min · Broadway
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22
Turn sharp right onto Pine Street
18 m · 3 sec · Pine Street
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23
Arrive at your destination
0 m · 1 sec · Pine Street
Car Route Details
A richer read on the saved driving route between Charleston and South Portland.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Ox Bow Road
Merge slight right
53.5 mi · 00h 58m
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 Charleston and Mostly Clear near South Portland.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Charleston to South Portland?
The road trip is about 132.7 miles (213.5 km) and usually takes 02h 18m 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?
Sidney is a useful midpoint, sitting about 66.2 miles from Charleston and 66.5 miles from South Portland.
How much longer is the road route than the straight-line distance?
The direct path is about 116 miles (186.7 km), while the road route adds roughly 16.7 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 1:52 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $18.46 one way or $36.93 round trip. Estimated CO2 is about 41.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Charleston and Mostly Clear near South Portland.
Stop Ideas Near Sidney
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 Sidney.
Augusta, ME
Waldoboro, Maine
Damariscotta, Maine
Wiscasset, Maine
Flight Path Map
This map shows the direct air route between Charleston and South Portland. Straight-line distance: 116.03 mi (186.73 km).
#1 Charleston
Human settlement in Penobscot County, Maine, United States of America
| Population | 1,675 |
| Coordinates | 45.0850600, -69.0405900 |
| Altitude | 149 |
| 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: 214 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 25m |
| 40 mph (64.37 km/h) | 03h 19m |
| 50 mph (80.47 km/h) | 02h 39m |
| 60 mph (96.56 km/h) | 02h 12m |
| 70 mph (112.65 km/h) | 01h 53m |
| 80 mph (129 km/h) | 01h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $18.46 | $36.93 |
| Mid-grade | $4.46 | $20.86 | $41.72 |
| Premium | $4.86 | $22.74 | $45.47 |
| Diesel | $6.00 | $28.07 | $56.13 |
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 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.