How far is South Portland, ME from Limestone, ME?
The driving distance from South Portland, ME to Limestone, ME is about 304.7 miles (490.3 km), with a travel time of about 05h 53m by car.
- The straight-line flight distance is about 254.5 miles (409.5 km).
- For a round trip, plan for roughly 11h 46m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 05h 53m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Minnesota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Chance Light Rain
Driving Route Map
The map below follows the saved road route between South Portland and Limestone.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Portland and Limestone.
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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
198.3 mi · 3 hr 27 min · Maine Turnpike
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9
Take the exit slight right toward US 1: Houlton, Presque Isle
1444 ft · 43 sec
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10
Turn left onto North Street
3.2 mi · 6 min · North Street
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11
Continue on North Road
5.8 mi · 8 min · North Road
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12
Continue on US Highway 1
1.1 km · 55 sec · US Highway 1
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13
Continue on Route 1
6.4 mi · 10 min · Route 1
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14
Continue on Main Road
6.7 mi · 11 min · Main Road
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15
Continue on Route 1
2.7 mi · 4 min · Route 1
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16
Continue on Military Road
1649 ft · 40 sec · Military Road
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17
Continue on Main Street
3090 ft · 2 min · Main Street
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18
Turn straight onto Bridge Street
547 ft · 9 sec · Bridge Street
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19
Continue on Fort Street
5.8 mi · 9 min · Fort Street
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20
Continue on Houlton Road
12 mi · 18 min · Houlton Road
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21
Continue on Presque Isle Street
1.5 km · 1 min · Presque Isle Street
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22
Continue on Bridge Street
1072 ft · 20 sec · Bridge Street
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23
Continue on Limestone Road
8.4 mi · 12 min · Limestone Road
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24
Continue on Fort Fairfield Road
1.2 mi · 2 min · Fort Fairfield Road
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25
Continue on Main Street
3195 ft · 60 sec · Main Street
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26
Turn left onto Trafton Avenue
22 m · 3 sec · Trafton Avenue
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27
Arrive at your destination
0 m · 1 sec · Trafton Avenue
Car Route Details
A richer read on the saved driving route between South Portland and Limestone.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Maine Turnpike
Merge slight left onto Maine Turnpike
198 mi · 03h 27m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving South Portland and Chance Light Rain near Limestone.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Portland to Limestone?
The road trip is about 304.7 miles (490.3 km) and usually takes 05h 53m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Greenbush is a useful midpoint, sitting about 152.2 miles from South Portland and 152.4 miles from Limestone.
How much longer is the road route than the straight-line distance?
The direct path is about 254.5 miles (409.5 km), while the road route adds roughly 50.2 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 5:14 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.41 one way or $84.82 round trip. Estimated CO2 is about 95.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around South Portland and Chance Light Rain near Limestone.
Stop Ideas Near Greenbush
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 Greenbush.
Orono (University of Maine), Maine
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Flight Path Map
This map shows the direct air route between South Portland and Limestone. Straight-line distance: 254.42 mi (409.45 km).
#1 South Portland
City in Cumberland County, Maine, USA
| Population | 25,950 |
| Coordinates | 43.6414700, -70.2408800 |
| Altitude | 7 |
| Country | United States |
#2 Limestone
Town in Aroostook County, Maine, United States
| Population | 2,164 |
| Coordinates | 46.9086600, -67.8258500 |
| Altitude | 181 |
| Country | United States |
End: Limestone (-67.82585, 46.90866)
Estimated Travel Time
Distance: 490 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 09m |
| 40 mph (64.37 km/h) | 07h 37m |
| 50 mph (80.47 km/h) | 06h 05m |
| 60 mph (96.56 km/h) | 05h 04m |
| 70 mph (112.65 km/h) | 04h 21m |
| 80 mph (129 km/h) | 03h 48m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $42.41 | $84.82 |
| Mid-grade | $4.46 | $47.91 | $95.83 |
| Premium | $4.86 | $52.22 | $104.45 |
| Diesel | $6.00 | $64.47 | $128.94 |
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.