How far is South Portland, ME from Dexter, ME?
The driving distance from South Portland, ME to Dexter, ME is about 118.8 miles (191.2 km), with a travel time of about 02h 21m by car.
- The straight-line flight distance is about 106.4 miles (171.3 km).
- For a round trip, plan for roughly 04h 42m 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 21m.
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.
County seat in Kennebec County, Maine, USA and Maine federated state capital city
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny then Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between South Portland and Dexter.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Portland and Dexter.
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1
Start on Pine Street
18 m · 10 sec · Pine Street
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2
Turn sharp left onto Broadway
1.6 km · 2 min · Broadway
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3
Continue on Casco Bay Bridge
1.1 mi · 2 min · Casco Bay Bridge
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4
Turn straight onto York Street
785 ft · 19 sec · York Street
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5
Turn left onto High Street
1.4 km · 2 min · High Street
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6
Take the ramp slight right toward I 295 North, US 1 North: Falmouth
1360 ft · 33 sec
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7
Merge slight left
46.8 mi · 53 min
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8
Merge slight left onto Maine Turnpike
53.6 mi · 58 min · Maine Turnpike
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9
Take the exit slight right toward ME 11, ME 100: Newport, Dexter
1611 ft · 46 sec
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10
Keep slight left
34 m · 7 sec
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11
Turn left onto Ox Bow Road
2725 ft · 1 min · Ox Bow Road
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12
Enter the roundabout and take exit 2 toward Moosehead Trail
37 m · 2 sec · Moosehead Trail
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13
Exit the roundabout onto Moosehead Trail
4.7 mi · 7 min · Moosehead Trail
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14
Continue on Newport Road
1.4 mi · 2 min · Newport Road
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15
Continue on Dexter Road
5.9 mi · 9 min · Dexter Road
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16
Continue on Corinna Road
1.2 mi · 2 min · Corinna Road
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17
Continue on Spring Street
1 mi · 2 min · Spring Street
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18
Arrive at your destination
0 m · 1 sec · Spring Street
Car Route Details
A richer read on the saved driving route between South Portland and Dexter.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Maine Turnpike
Merge slight left onto Maine Turnpike
53.6 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 South Portland and Mostly Sunny then Slight Chance Rain Showers near Dexter.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Portland to Dexter?
The road trip is about 118.8 miles (191.2 km) and usually takes 02h 21m 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?
Augusta is a useful midpoint, sitting about 59.4 miles from South Portland and 59.4 miles from Dexter.
How much longer is the road route than the straight-line distance?
The direct path is about 106.4 miles (171.3 km), while the road route adds roughly 12.4 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 1:48 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.53 one way or $33.06 round trip. Estimated CO2 is about 37.2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around South Portland and Mostly Sunny then Slight Chance Rain Showers near Dexter.
Stop Ideas Near Augusta
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 Augusta.
Augusta, ME
Wiscasset, Maine
Damariscotta, Maine
Waldoboro, Maine
Flight Path Map
This map shows the direct air route between South Portland and Dexter. Straight-line distance: 106.46 mi (171.33 km).
#1 South Portland
City in Cumberland County, Maine, USA
| Population | 25,950 |
| Coordinates | 43.6414700, -70.2408800 |
| Altitude | 7 |
| Country | United States |
#2 Dexter
Town in Penobscot County, Maine, United States
| Population | 3,702 |
| Coordinates | 45.0239500, -69.2897700 |
| Altitude | 127 |
| Country | United States |
End: Dexter (-69.28977, 45.02395)
Estimated Travel Time
Distance: 191 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 57m |
| 40 mph (64.37 km/h) | 02h 58m |
| 50 mph (80.47 km/h) | 02h 22m |
| 60 mph (96.56 km/h) | 01h 58m |
| 70 mph (112.65 km/h) | 01h 41m |
| 80 mph (129 km/h) | 01h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $16.53 | $33.06 |
| Mid-grade | $4.46 | $18.67 | $37.35 |
| Premium | $4.86 | $20.36 | $40.71 |
| Diesel | $6.00 | $25.13 | $50.25 |
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 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.