How far is Calais, ME from South Portland, ME?
The driving distance from Calais, ME to South Portland, ME is about 229.1 miles (368.7 km), with a travel time of about 03h 53m by car.
- The straight-line flight distance is about 181 miles (291.3 km).
- For a round trip, plan for roughly 07h 47m 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 03h 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.
Human settlement in Penobscot County, Maine, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers Likely
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Calais and South Portland.
Turn-by-Turn Driving Directions
Step-by-step road directions between Calais and South Portland.
-
1
Start on Germain Street
137 m · 22 sec · Germain Street
-
2
Turn right onto Lincoln Street
1422 ft · 1 min · Lincoln Street
-
3
At the end of the road, turn left onto North Street
1.3 mi · 2 min · North Street
-
4
Continue on Baring Street
2665 ft · 45 sec · Baring Street
-
5
Enter the roundabout and take exit 2 toward Baring Street
26 m · 1 sec · Baring Street
-
6
Exit the roundabout onto Baring Street
1.9 mi · 2 min · Baring Street
-
7
Continue on Route 1
2.6 mi · 3 min · Route 1
-
8
Continue on Houlton Road
1047 ft · 17 sec · Houlton Road
-
9
Turn left onto Airline Road
46.5 mi · 1 hr 3 min · Airline Road
-
10
Continue on State Highway 9
1 km · 43 sec · State Highway 9
-
11
Continue on Airline Road
28.7 mi · 41 min · Airline Road
-
12
Continue on Main Road
13.4 mi · 17 min · Main Road
-
13
Continue straight
1.3 mi · 2 min
-
14
Continue straight
45 m · 13 sec
-
15
Take the exit slight right toward I 95 South: Newport
1530 ft · 22 sec
-
16
Merge slight left
79 mi · 1 hr 26 min
-
17
Keep slight right to continue on I 295 South, ME 9, ME 126: Gardiner, Brunswick
46.5 mi · 53 min
-
18
Take the exit slight right toward US 1A
2130 ft · 1 min
-
19
Turn right onto Marginal Way
2795 ft · 1 min · Marginal Way
-
20
Continue on State Street
1.6 km · 2 min · State Street
-
21
Continue on Casco Bay Bridge
1.1 mi · 2 min · Casco Bay Bridge
-
22
Continue on Broadway
1.6 km · 2 min · Broadway
-
23
Turn sharp right onto Pine Street
18 m · 3 sec · Pine Street
-
24
Arrive at your destination
0 m · 1 sec · Pine Street
Car Route Details
A richer read on the saved driving route between Calais and South Portland.
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 95 South
Merge slight left
79 mi · 01h 26m
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.
Rain Showers Likely leaving Calais and Slight Chance Rain Showers near South Portland.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Calais to South Portland?
The road trip is about 229.1 miles (368.7 km) and usually takes 03h 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?
Etna is a useful midpoint, sitting about 113.5 miles from Calais and 115.6 miles from South Portland.
How much longer is the road route than the straight-line distance?
The direct path is about 181 miles (291.3 km), while the road route adds roughly 48.1 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 9:12 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.88 one way or $63.75 round trip. Estimated CO2 is about 71.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely around Calais and Slight Chance Rain Showers near South Portland.
Stop Ideas Near Etna
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 Etna.
Bangor, Maine
Orono (University of Maine), Maine
Searsport, Maine
Belfast, Maine
Flight Path Map
This map shows the direct air route between Calais and South Portland. Straight-line distance: 180.97 mi (291.25 km).
#1 Calais
Town in Washington County, Vermont, United States
| Population | 3,026 |
| Coordinates | 45.1837600, -67.2766200 |
| Altitude | 13 |
| Country | United States |
#2 South Portland
City in Cumberland County, Maine, USA
| Population | 25,950 |
| Coordinates | 43.6414700, -70.2408800 |
| Altitude | 7 |
| Country | United States |
End: Pine Street (-70.240981, 43.641461)
Estimated Travel Time
Distance: 369 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 38m |
| 40 mph (64.37 km/h) | 05h 43m |
| 50 mph (80.47 km/h) | 04h 34m |
| 60 mph (96.56 km/h) | 03h 49m |
| 70 mph (112.65 km/h) | 03h 16m |
| 80 mph (129 km/h) | 02h 51m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $31.88 | $63.75 |
| Mid-grade | $4.46 | $36.01 | $72.03 |
| Premium | $4.86 | $39.25 | $78.51 |
| Diesel | $6.00 | $48.46 | $96.91 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.