How far is South Portland, ME from Greenville, ME?

The driving distance from South Portland, ME to Greenville, ME is about 157.2 miles (253 km), with a travel time of about 03h 18m by car.

  • The straight-line flight distance is about 129.6 miles (208.6 km).
  • For a round trip, plan for roughly 06h 37m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
157.22 mi
03h 18m
Flight
129.63 mi
208.62 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from South Portland.

Flight Distance

Direct air line
129.63 mi
Kilometers
208.62 km
Flight Time
00h 15m

Driving Distance

Road route
157.22 mi
Kilometers
253.02 km
Drive Time
03h 18m

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 03h 18m.

Arrival Snapshot
Arrive in Greenville
Sun, May 3, 6:36 AM EDT
Return by in South Portland
Sun, May 3, 9:55 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave South Portland
2026-05-03T03:17
Arrive Greenville
Sun, May 3, 6:36 AM EDT
Route Timing
03h 18m
One way by road
Best Departure Window
6:00 AM to 8:00 AM EDT
Leave early for more breathing room
Arrive between
9:19 AM to 11:19 AM EDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
10:22 AM EDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in South Portland
9:00 PM EDT
Early departure recommended

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.

Mid-route stop
Fairfield
ME

Town in Somerset County, Maine, United States

From South Portland
78.6 mi
01h 39m
To Greenville
78.7 mi
01h 39m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
South Portland Weather
ME
Live fallback forecast
52°F
Sunday
Using Portland as the closest live forecast in the Cumberland County weather hub.

Chance Rain Showers

Starts
Sun, May 3 6:00 AM EDT
Wind
10 to 15 mph N
Destination
52°F
Sunday

Chance Light Rain

Starts
Sun, May 3 6:00 AM EDT
Wind
1 to 6 mph NW

Driving Route Map

The map below follows the saved road route between South Portland and Greenville.

Turn-by-Turn Driving Directions

Step-by-step road directions between South Portland and Greenville.

  1. 1

    Start on Pine Street

    18 m · 10 sec · Pine Street

  2. 2

    Turn sharp left onto Broadway

    1.6 km · 2 min · Broadway

  3. 3

    Continue on Casco Bay Bridge

    1.1 mi · 2 min · Casco Bay Bridge

  4. 4

    Turn straight onto York Street

    785 ft · 19 sec · York Street

  5. 5

    Turn left onto High Street

    1.4 km · 2 min · High Street

  6. 6

    Take the ramp slight right toward I 295 North, US 1 North: Falmouth

    1360 ft · 33 sec

  7. 7

    Merge slight left

    46.8 mi · 53 min

  8. 8

    Merge slight left onto Maine Turnpike

    53.6 mi · 58 min · Maine Turnpike

  9. 9

    Take the exit slight right toward ME 11, ME 100: Newport, Dexter

    1611 ft · 46 sec

  10. 10

    Keep slight left

    34 m · 7 sec

  11. 11

    Turn left onto Ox Bow Road

    2725 ft · 1 min · Ox Bow Road

  12. 12

    Enter the roundabout and take exit 2 toward Moosehead Trail

    37 m · 2 sec · Moosehead Trail

  13. 13

    Exit the roundabout onto Moosehead Trail

    4.7 mi · 7 min · Moosehead Trail

  14. 14

    Continue on Newport Road

    1.4 mi · 2 min · Newport Road

  15. 15

    Continue on Dexter Road

    5.9 mi · 9 min · Dexter Road

  16. 16

    Continue on Corinna Road

    1.2 mi · 2 min · Corinna Road

  17. 17

    Continue on Spring Street

    1 mi · 2 min · Spring Street

  18. 18

    Continue on Church Street

    1027 ft · 22 sec · Church Street

  19. 19

    Turn left onto Dam Street

    89 m · 5 sec · Dam Street

  20. 20

    Continue on Grove Street

    3106 ft · 53 sec · Grove Street

  21. 21

    Continue on Crockett Road

    128 m · 7 sec · Crockett Road

  22. 22

    Turn straight onto North Dexter Road

    9.4 mi · 14 min · North Dexter Road

  23. 23

    Continue on Main Street

    1.4 km · 1 min · Main Street

  24. 24

    Continue on Bridge Street

    626 ft · 19 sec · Bridge Street

  25. 25

    Turn left onto Water Street

    1.3 mi · 2 min · Water Street

  26. 26

    Continue on South Main Street

    150 m · 10 sec · South Main Street

  27. 27

    Turn right onto Elm Street

    1.4 km · 1 min · Elm Street

  28. 28

    Continue on Main Road

    6.3 mi · 9 min · Main Road

  29. 29

    Continue on Tenney Hill Road

    4.1 mi · 6 min · Tenney Hill Road

  30. 30

    Continue on Greenville Road

    10.2 mi · 15 min · Greenville Road

  31. 31

    Continue on Moosehead Lake Road

    4.2 mi · 6 min · Moosehead Lake Road

  32. 32

    Turn right onto Pleasant Street

    58 m · 8 sec · Pleasant Street

  33. 33

    Arrive at your destination

    0 m · 1 sec · Pleasant Street

Car Route Details

A richer read on the saved driving route between South Portland and Greenville.

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
33 steps
12 turns on the saved route
Ramps & Exits
6
2 merges, 4 ramps or exits
Navigation Density
21 / 100 mi
Decision points by distance
Main Roads
Maine Turnpike
53.6 mi · 34%
I 295 North
47.1 mi · 30%
Greenville Road
10.2 mi · 6%
North Dexter Road
9.44 mi · 6%
Main Road
6.32 mi · 4%
Dexter Road
5.85 mi · 4%
Longest Stretch

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.

Trip Read

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.

Drive Time
03h 18m
Long day trip
Same-Day Return
06h 38m
Round-trip wheel time
Road vs Air
+27.6 mi
129.6 mi direct line
Halfway Stop
Fairfield
01h 39m from South Portland
Leave By
10:22 AM EDT
Early departure recommended
Weather Watch

Chance Rain Showers leaving South Portland and Chance Light Rain near Greenville.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from South Portland to Greenville?

The road trip is about 157.2 miles (253 km) and usually takes 03h 18m 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?

Fairfield is a useful midpoint, sitting about 78.6 miles from South Portland and 78.7 miles from Greenville.

How much longer is the road route than the straight-line distance?

The direct path is about 129.6 miles (208.6 km), while the road route adds roughly 27.6 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 10:22 AM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $21.89 one way or $43.79 round trip. Estimated CO2 is about 49.3 kg one way.

What should you check before leaving?

Before you leave, expect Chance Rain Showers around South Portland and Chance Light Rain near Greenville.

Stop Ideas Near Fairfield

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Fairfield and the surrounding midpoint area.
Waterville Opera House
Scenic stop 2.1 mi away

Waterville Opera House

Waterville , ME
1 Common St, Waterville, ME 04901
Rating 4.7/5 291 reviews Opera house,Comedy club,Concert hall,Historical landmark,Performing arts theater
Sidney Town Hall
Meeting point 10.8 mi away

Sidney Town Hall

Sidney , ME
2986 Middle Rd, Sidney, ME 04330
Rating 4.9/5 10 reviews City Hall

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Fairfield.

BUS

Augusta, ME

30 mi away
9 Industrial Drive
BUS

Belfast, Maine

49 mi away
Belmont Ave & US Hwy 1
BUS

Searsport, Maine

56 mi away
161 East Main St.
BUS

Waldoboro, Maine

57 mi away
US hwy 1 and hwy 32

Flight Path Map

This map shows the direct air route between South Portland and Greenville. Straight-line distance: 129.63 mi (208.62 km).

South Portland

#1 South Portland

City in Cumberland County, Maine, USA

Population25,950
Coordinates43.6414700, -70.2408800
Altitude7
CountryUnited States
Greenville

#2 Greenville

Town in Piscataquis County, Maine, United States

Population1,628
Coordinates45.4594900, -69.5906100
Altitude318
CountryUnited States
Start: South Portland (-70.24088, 43.64147)
End: Greenville (-69.59061, 45.45949)

Estimated Travel Time

Distance: 253 km by road

SpeedTime
30 mph (48.3 km/h)05h 14m
40 mph (64.37 km/h)03h 55m
50 mph (80.47 km/h)03h 08m
60 mph (96.56 km/h)02h 37m
70 mph (112.65 km/h)02h 14m
80 mph (129 km/h)01h 57m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
5.55 gal
21 L · about $21.89
Round trip
$43.79
11.1 gal · 42 L
Estimated CO2
49.3 kg one way
Round trip: 98.6 kg / 217 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.95 $21.89 $43.79
Mid-grade $4.46 $24.74 $49.47
Premium $4.86 $26.96 $53.92
Diesel $6.00 $33.28 $66.57

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 03, 2026

There is no time difference between South Portland and Greenville. The current time is 03:17:55.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.