How far is South Portland, ME from Unity, ME?
The driving distance from South Portland, ME to Unity, ME is about 94.9 miles (152.7 km), with a travel time of about 01h 58m by car.
- The straight-line flight distance is about 80.7 miles (129.8 km).
- For a round trip, plan for roughly 03h 57m 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 01h 58m.
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.
City in Maine
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 Unity.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Portland and Unity.
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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
29.3 mi · 32 min · Maine Turnpike
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9
Take the exit slight right toward ME 139: Fairfield, Benton
1278 ft · 36 sec
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10
Turn right onto Western Avenue
1.4 km · 2 min · Western Avenue
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11
Turn right onto Newhall Street
1147 ft · 38 sec · Newhall Street
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12
At the end of the road, turn left onto Lawrence Avenue
152 m · 16 sec · Lawrence Avenue
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13
Continue on Bridge Street
2449 ft · 1 min · Bridge Street
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14
Continue on Neck Road
1.7 mi · 3 min · Neck Road
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15
Turn left onto Clinton Avenue
140 m · 12 sec · Clinton Avenue
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16
Turn right onto Sebasticook Bridge Road
1254 ft · 36 sec · Sebasticook Bridge Road
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17
Turn left onto Unity Road
6 mi · 9 min · Unity Road
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18
Continue on State Route 139
2.2 mi · 3 min · State Route 139
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19
Continue on Waterville Road
2.2 mi · 3 min · Waterville Road
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20
Continue on School Street
1.1 mi · 2 min · School Street
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21
At the end of the road, turn right onto Main Street
20 m · 1 sec · Main Street
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22
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between South Portland and Unity.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 295 North
Merge slight left
46.8 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 South Portland and Mostly Sunny then Slight Chance Rain Showers near Unity.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Portland to Unity?
The road trip is about 94.9 miles (152.7 km) and usually takes 01h 58m 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?
Gardiner is a useful midpoint, sitting about 47.4 miles from South Portland and 47.5 miles from Unity.
How much longer is the road route than the straight-line distance?
The direct path is about 80.7 miles (129.8 km), while the road route adds roughly 14.2 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 2:32 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.22 one way or $26.43 round trip. Estimated CO2 is about 29.8 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 Unity.
Stop Ideas Near Gardiner
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 Gardiner.
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Flight Path Map
This map shows the direct air route between South Portland and Unity. Straight-line distance: 80.69 mi (129.85 km).
#1 South Portland
City in Cumberland County, Maine, USA
| Population | 25,950 |
| Coordinates | 43.6414700, -70.2408800 |
| Altitude | 7 |
| Country | United States |
#2 Unity
Town in Maine, United States
| Population | 2,111 |
| Coordinates | 44.6111800, -69.3344900 |
| Altitude | 67 |
| Country | United States |
End: Unity (-69.33449, 44.61118)
Estimated Travel Time
Distance: 153 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 09m |
| 40 mph (64.37 km/h) | 02h 22m |
| 50 mph (80.47 km/h) | 01h 53m |
| 60 mph (96.56 km/h) | 01h 34m |
| 70 mph (112.65 km/h) | 01h 21m |
| 80 mph (129 km/h) | 01h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $13.22 | $26.43 |
| Mid-grade | $4.46 | $14.93 | $29.86 |
| Premium | $4.86 | $16.27 | $32.55 |
| Diesel | $6.00 | $20.09 | $40.18 |
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.