How far is South Portland, ME from Casco, ME?
The driving distance from South Portland, ME to Casco, ME is about 31.7 miles (51 km), with a travel time of about 00h 51m by car.
- The straight-line flight distance is about 28.9 miles (46.5 km).
- For a round trip, plan for roughly 01h 43m 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 00h 51m.
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.
Census-designated place in Cumberland County, Maine
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Showers And Thunderstorms Likely
Partly Sunny then Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between South Portland and Casco.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Portland and Casco.
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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
4.4 mi · 6 min · Forest Avenue
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7
Continue on Bridgton Road
3.8 mi · 8 min · Bridgton Road
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8
Continue on Roosevelt Trail
4.2 mi · 5 min · Roosevelt Trail
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9
Enter the roundabout and take exit 2 toward Roosevelt Trail
88 m · 10 sec · Roosevelt Trail
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10
Exit the roundabout onto Roosevelt Trail
7.7 mi · 13 min · Roosevelt Trail
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11
Turn right onto Main Street
2395 ft · 48 sec · Main Street
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12
Turn right onto Meadow Road
8 mi · 14 min · Meadow Road
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13
Arrive at your destination
0 m · 1 sec · Meadow Road
Car Route Details
A richer read on the saved driving route between South Portland and Casco.
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.
Meadow Road
Turn right onto Meadow Road
8.02 mi · 00h 14m
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 then Showers And Thunderstorms Likely leaving South Portland and Partly Sunny then Showers And Thunderstorms Likely near Casco.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Portland to Casco?
The road trip is about 31.7 miles (51 km) and usually takes 00h 51m 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?
North Windham is a useful midpoint, sitting about 15.8 miles from South Portland and 15.8 miles from Casco.
How much longer is the road route than the straight-line distance?
The direct path is about 28.9 miles (46.5 km), while the road route adds roughly 2.8 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 4:46 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.42 one way or $8.84 round trip. Estimated CO2 is about 10 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Showers And Thunderstorms Likely around South Portland and Partly Sunny then Showers And Thunderstorms Likely near Casco.
Stop Ideas Near North Windham
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 North Windham.
Portland Transportation Center
Freeport
Old Orchard Beach
Saco Transportation Center
Flight Path Map
This map shows the direct air route between South Portland and Casco. Straight-line distance: 28.89 mi (46.49 km).
#1 South Portland
City in Cumberland County, Maine, USA
| Population | 25,950 |
| Coordinates | 43.6414700, -70.2408800 |
| Altitude | 7 |
| Country | United States |
#2 Casco
City in United States of America
| Population | 3,940 |
| Coordinates | 44.0067400, -70.5228400 |
| Altitude | 141 |
| Country | United States |
End: Casco (-70.52284, 44.00674)
Estimated Travel Time
Distance: 51 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 03m |
| 40 mph (64.37 km/h) | 00h 47m |
| 50 mph (80.47 km/h) | 00h 38m |
| 60 mph (96.56 km/h) | 00h 31m |
| 70 mph (112.65 km/h) | 00h 27m |
| 80 mph (129 km/h) | 00h 23m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $4.42 | $8.84 |
| Mid-grade | $4.46 | $4.99 | $9.98 |
| Premium | $4.86 | $5.44 | $10.88 |
| Diesel | $6.00 | $6.72 | $13.43 |
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 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.