How far is South Portland, ME from Dayton, ME?
The driving distance from South Portland, ME to Dayton, ME is about 23.5 miles (37.9 km), with a travel time of about 00h 42m by car.
- The straight-line flight distance is about 17.9 miles (28.8 km).
- For a round trip, plan for roughly 01h 24m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 42m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Clear
Mostly Sunny
Driving Route Map
The map below follows the saved road route between South Portland and Dayton.
Turn-by-Turn Driving Directions
Step-by-step road directions between South Portland and Dayton.
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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
Turn left onto Broadway
3.6 mi · 6 min · Broadway
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4
Take the ramp slight right toward Maine Mall Road
1214 ft · 30 sec
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5
Merge slight left onto Samantha Smith Way
1 mi · 2 min · Samantha Smith Way
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6
Take the exit left
2178 ft · 54 sec
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7
Merge slight left onto Maine Turnpike
8 mi · 9 min · Maine Turnpike
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8
Take the exit slight right toward I 195 East: Saco, Old Orchard Beach
965 ft · 27 sec
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9
Keep slight left to continue on RT-112 Buxton Rd: Saco, Buxton
2800 ft · 1 min
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10
Continue on RT-112 Buxton Rd: Saco, Buxton
769 ft · 19 sec
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11
Keep slight right to continue on RT-112 Buxton Rd: Saco, Buxton
965 ft · 30 sec
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12
Turn left onto Buxton Road
65 m · 4 sec · Buxton Road
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13
Continue on North Street
2410 ft · 52 sec · North Street
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14
Turn right onto Garfield Street
1 km · 2 min · Garfield Street
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15
At the end of the road, turn right onto Bradley Street
2628 ft · 53 sec · Bradley Street
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16
Continue on New County Road
4.6 mi · 8 min · New County Road
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17
Turn right onto Hollis Road
1.4 mi · 6 min · Hollis Road
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18
Turn left onto Bickford Road
1905 ft · 1 min · Bickford Road
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19
Turn right onto Wilderness Drive
1485 ft · 2 min · Wilderness Drive
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20
Arrive at your destination
0 m · 1 sec · Wilderness Drive
Car Route Details
A richer read on the saved driving route between South Portland and Dayton.
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
7.99 mi · 00h 09m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Clear leaving South Portland and Mostly Sunny near Dayton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from South Portland to Dayton?
The road trip is about 23.5 miles (37.9 km) and usually takes 00h 42m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
West Scarborough is a useful midpoint, sitting about 11.7 miles from South Portland and 11.8 miles from Dayton.
How much longer is the road route than the straight-line distance?
The direct path is about 17.9 miles (28.8 km), while the road route adds roughly 5.6 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:06 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.27 one way or $6.55 round trip. Estimated CO2 is about 7.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Clear around South Portland and Mostly Sunny near Dayton.
Stop Ideas Near West Scarborough
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 West Scarborough.
Old Orchard Beach
Saco Transportation Center
Portland Transportation Center
Wells Regional Transportation Center
Flight Path Map
This map shows the direct air route between South Portland and Dayton. Straight-line distance: 17.91 mi (28.82 km).
#1 South Portland
City in Cumberland County, Maine, USA
| Population | 25,950 |
| Coordinates | 43.6414700, -70.2408800 |
| Altitude | 7 |
| Country | United States |
#2 Dayton
Town in Maine, USA
| Population | 2,107 |
| Coordinates | 43.549722, -70.575555 |
| Altitude | - |
| Country | United States |
End: Dayton (-70.575555, 43.549722)
Estimated Travel Time
Distance: 38 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 47m |
| 40 mph (64.37 km/h) | 00h 35m |
| 50 mph (80.47 km/h) | 00h 28m |
| 60 mph (96.56 km/h) | 00h 23m |
| 70 mph (112.65 km/h) | 00h 20m |
| 80 mph (129 km/h) | 00h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.95 | $3.27 | $6.55 |
| Mid-grade | $4.46 | $3.70 | $7.40 |
| Premium | $4.86 | $4.03 | $8.06 |
| Diesel | $6.00 | $4.98 | $9.96 |
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 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.