How far is South Portland, ME from Mount Vernon, ME?
The driving distance from South Portland, ME to Mount Vernon, ME is about 72.1 miles (116.1 km), with a travel time of about 01h 39m by car.
- The straight-line flight distance is about 60.7 miles (97.7 km).
- For a round trip, plan for roughly 03h 19m 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 39m.
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, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers
Driving Route Map
The map below follows the saved road route between South Portland and Mount Vernon.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Portland and Mount Vernon.
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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
1.3 km · 1 min · High Street
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6
Continue on Forest Avenue
2.4 mi · 3 min · Forest Avenue
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7
Take the exit slight right
61 m · 9 sec
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8
Turn slight right onto Allen Avenue
1.3 km · 2 min · Allen Avenue
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9
Turn left onto Washington Avenue
80 m · 7 sec · Washington Avenue
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10
Continue on Auburn Street
1.7 mi · 4 min · Auburn Street
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11
Continue on Gray Road
2967 ft · 1 min · Gray Road
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12
Take the ramp left
957 ft · 41 sec
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13
Keep slight right to continue on I 95 North: Lewiston, Augusta
854 ft · 21 sec
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14
Merge slight left onto Maine Turnpike
14.1 mi · 15 min · Maine Turnpike
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15
Keep slight left to continue on Maine Turnpike
8.1 mi · 9 min · Maine Turnpike
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16
Take the exit slight right toward US 202, ME 4, ME 100: Auburn
1630 ft · 42 sec
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17
At the end of the road, turn left onto Washington Street
4.2 mi · 6 min · Washington Street
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18
Merge slight right onto Minot Avenue
2665 ft · 41 sec · Minot Avenue
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19
Turn right onto Court Street
2156 ft · 37 sec · Court Street
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20
Continue on Main Street
4.9 mi · 6 min · Main Street
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21
Continue on Route 202
3.8 mi · 4 min · Route 202
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22
Continue on US Route 202
1 km · 43 sec · US Route 202
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23
Continue on Route 202
2.7 mi · 3 min · Route 202
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24
Continue on US Route 202
1.5 km · 1 min · US Route 202
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25
Continue on US 202
6.4 mi · 7 min · US 202
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26
Turn slight right onto Route 133
1.1 km · 1 min · Route 133
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27
Continue on Lake Street
1517 ft · 26 sec · Lake Street
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28
Continue on Route 133
1.3 km · 1 min · Route 133
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29
Continue on Readfield Road
1.6 mi · 3 min · Readfield Road
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30
Continue on Winthrop Road
3.2 mi · 6 min · Winthrop Road
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31
Turn left onto Main Street
2.1 mi · 4 min · Main Street
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32
Keep slight right to continue on Chimney Road
1.2 mi · 2 min · Chimney Road
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33
Continue on Pond Road
6 mi · 11 min · Pond Road
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34
Continue on Pond Road
42 m · 3 sec · Pond Road
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35
Arrive at your destination
0 m · 1 sec · Pond Road
Car Route Details
A richer read on the saved driving route between South Portland and Mount Vernon.
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.
Maine Turnpike
Merge slight left onto Maine Turnpike
14.1 mi · 00h 15m
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.
Rain Showers leaving South Portland and Rain Showers near Mount Vernon.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Portland to Mount Vernon?
The road trip is about 72.1 miles (116.1 km) and usually takes 01h 39m 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?
Auburn is a useful midpoint, sitting about 36 miles from South Portland and 36.1 miles from Mount Vernon.
How much longer is the road route than the straight-line distance?
The direct path is about 60.7 miles (97.7 km), while the road route adds roughly 11.4 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 3:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.06 one way or $20.12 round trip. Estimated CO2 is about 22.7 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around South Portland and Rain Showers near Mount Vernon.
Stop Ideas Near Auburn
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 Auburn.
Freeport
Brunswick Maine Street Station
Bath, Maine
Augusta, ME
Flight Path Map
This map shows the direct air route between South Portland and Mount Vernon. Straight-line distance: 60.71 mi (97.71 km).
#1 South Portland
City in Cumberland County, Maine, USA
| Population | 25,950 |
| Coordinates | 43.6414700, -70.2408800 |
| Altitude | 7 |
| Country | United States |
#2 Mount Vernon
Town in Kennebec County, Maine
| Population | 1,706 |
| Coordinates | 44.5011800, -69.9875600 |
| Altitude | 108 |
| Country | United States |
End: Mount Vernon (-69.98756, 44.50118)
Estimated Travel Time
Distance: 116 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 24m |
| 40 mph (64.37 km/h) | 01h 48m |
| 50 mph (80.47 km/h) | 01h 26m |
| 60 mph (96.56 km/h) | 01h 12m |
| 70 mph (112.65 km/h) | 01h 01m |
| 80 mph (129 km/h) | 00h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $10.06 | $20.12 |
| Mid-grade | $4.46 | $11.37 | $22.73 |
| Premium | $4.86 | $12.39 | $24.78 |
| Diesel | $6.00 | $15.29 | $30.58 |
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 26, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.