Origin
City of Portland, ME
Late night in City of Portland on Wednesday
Local time
5:56 AM
EDT
Current temp
43°F
Unavailable
Live forecast
Trip from City of Portland, ME to Stonington, ME
Data updated 2 hours ago
Drive Time
3h 59m
Distance
163.5 mi
263 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$26
one way
EV Charging
Loading...
station data
Best Time to Leave
4 AM
3h 46m
★
6 AM
3h 59m
8 AM
4h 25m
10 AM
4h 8m
12 PM
4h 6m
3 PM
4h 10m
5 PM
4h 24m
8 PM
3h 51m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
City of Portland, ME
Brett Sayles
Trip Overview
The drive from City of Portland, ME to Stonington, ME covers 163.5 miles and takes about 3h 59m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 295, Route 3, Maine Turnpike for much of the mileage, and the overall profile is mixed drive. The longest uninterrupted segment is about 46.3 miles on I 295. At current regular gas prices, budget about $26.32 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
81.7 miles from City of Portland, ME
A natural place for your longest stop of the day , about 1h 59m into the drive .
Loading map...
Drive Character
The drive from City of Portland, ME to Stonington, ME covers 163.5 miles and takes about 3h 59m, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 50 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 295 is the longest continuous segment at about 46.3 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1 miles in near Welch Street.
Route Complexity
9/10
High effort - long or complex enough to need steady focus all day
This is a demanding drive. With 18 significant decision points across 163.5 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 1 miles (Welch Street): Complex interchange - multiple decisions in a short stretch; at 5 miles (I 295; US 1): Merge point - match speed before joining. Lane positioning matters here; at 61 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 18 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
6
1 mi into trip
|
~3m in
|
Welch Street
At end of road, turn left onto Welch Street
Complex interchange - multiple decisions in a short stretch
5
5 mi into trip
|
~28m in
|
I 295; US 1
Merge onto I 295; US 1
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
61 mi into trip
|
~1h 31m in
Take the exit toward ME 3: Augusta, Belfast
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 113
Toward ME 3: Augusta, Belfast
5
61.2 mi into trip
|
~1h 31m in
Keep slight right at fork
Highway fork - watch signs carefully
5
61.3 mi into trip
|
~1h 32m in
|
ME 3 / Augusta Bypass
Merge onto ME 3 / Augusta Bypass
Merge point - match speed before joining. Lane positioning matters here
Use the left / straight lanes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from City of Portland, ME to Stonington, ME, road signs begin pointing toward Belfast along the way.
Belfast
61 mi in
|
~1h 31m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 295 | 46.3 mi | 52m |
| Route 3 | 17.6 mi | 21m |
| Maine Turnpike | 9.8 mi | 10m |
| North Belfast Avenue | 8.1 mi | 11m |
| Acadia Highway | 7.3 mi | 8m |
| West Main Street | 7 mi | 8m |
| East Main Street | 6.3 mi | 7m |
| North Penobscot Road | 5 mi | 8m |
Longest stretch:
I 295
— 46.3 mi, about 52m
Turn-by-Turn Driving Directions
Step-by-step road directions between City of Portland, ME and Stonington, ME.
1
Start on Seashore Avenue
0.6 mi
·
2 min
·
Seashore Avenue
2
At end of road, turn left onto Seashore Avenue
0.2 mi
·
45 sec
·
Seashore Avenue
3
Continue on Whitehead Street
351 ft
·
15 sec
·
Whitehead Street
4
Continue on Oakland Avenue
0.1 mi
·
31 sec
·
Oakland Avenue
5
At end of road, turn left onto Welch Street
0.2 mi
·
1 min
·
Welch Street
6
Continue on Portland - Peaks Island
2.5 mi
·
20 min
·
Portland - Peaks Island
7
Continue
187 ft
·
14 sec
8
Turn right onto Maine State Pier
74 ft
·
30 sec
·
Maine State Pier
9
Continue on Maine State Pier
0.1 mi
·
30 sec
·
Maine State Pier
10
Continue on US 1A
0.7 mi
·
1 min
·
Franklin Street
11
Take the ramp onto US 1A
0.3 mi
·
39 sec
·
US 1A
12
Merge onto I 295; US 1
46 mi
·
52 min
·
I 295; US 1
Use the straight / slight right lanes.
13
Merge onto I 95
9.8 mi
·
10 min
·
Maine Turnpike
14
Take the exit
0.1 mi
·
26 sec
Exit 113
Toward ME 3: Augusta, Belfast
15
Keep slight right at fork
0.2 mi
·
20 sec
16
Merge onto ME 3
2.5 mi
·
3 min
·
Augusta Bypass
Use the left / straight lanes.
17
Continue on US 202; ME 3; ME 9
8.1 mi
·
11 min
·
North Belfast Avenue
Use the straight lane.
18
Continue on US 202; ME 3; ME 9
0.2 mi
·
16 sec
·
Belfast Road
19
Continue on US 202; ME 3; ME 9
18 mi
·
21 min
·
Route 3
Use the straight lane.
20
Continue on ME 3
4.0 mi
·
4 min
·
Acadia Highway
21
Continue on ME 3
3.4 mi
·
3 min
·
Belfast Augusta Road West
22
Continue on ME 3
4.8 mi
·
5 min
·
Augusta Road
23
Continue on ME 3
4.0 mi
·
4 min
·
Belmont Avenue
24
Take the exit onto ME 3
0.3 mi
·
43 sec
·
ME 3
25
Merge onto US 1; ME 3
0.7 mi
·
1 min
·
Route 1
26
Continue on US 1; ME 3
2.7 mi
·
4 min
·
Searsport Avenue
Use the left lane.
27
Continue on US 1; ME 3
7.0 mi
·
8 min
·
West Main Street
28
Keep slight right at fork onto US 1; ME 3
6.3 mi
·
7 min
·
East Main Street
29
Continue on US 1; ME 3
1.2 mi
·
2 min
·
US Highway 1
30
Continue on US 1; ME 3
508 ft
·
12 sec
·
Route 1
31
Continue on US 1; ME 3; ME 15
1.0 mi
·
1 min
·
Route 1
32
Continue on US 1; ME 3; ME 15
3.4 mi
·
3 min
·
Acadia Highway
33
Turn right onto ME 15
3.7 mi
·
5 min
·
Front Ridge Road
Use the right lane.
34
Turn right onto ME 199
5.0 mi
·
8 min
·
North Penobscot Road
35
At end of road, turn left onto ME 175
4.6 mi
·
8 min
·
Southern Bay Road
36
Continue on ME 175
2.6 mi
·
4 min
·
Graytown Road
37
Continue on ME 15
2.9 mi
·
5 min
·
Snows Cove Road
38
Continue on ME 15; ME 175
2.9 mi
·
5 min
·
Caterpillar Hill Road
39
At end of road, turn right onto ME 15
1.3 mi
·
2 min
·
Byards Point Road
40
Continue on ME 15
0.5 mi
·
50 sec
·
Deer Isle Sedgwick Bridge
41
Continue on ME 15
1.0 mi
·
1 min
·
Little Deer Isle Road
42
Continue on ME 15
4.6 mi
·
8 min
·
North Deer Isle Road
43
Continue on ME 15
0.5 mi
·
51 sec
·
Church Street
44
Continue on ME 15
3.5 mi
·
6 min
·
South Deer Isle Road
45
Continue on ME 15
1.5 mi
·
2 min
·
North Main Street
46
Continue on ME 15
0.1 mi
·
10 sec
·
Thurlows Hill Road
47
Continue on ME 15
0.2 mi
·
25 sec
·
Main Street
48
Turn right onto School Street
335 ft
·
14 sec
·
School Street
49
Turn left onto Church Street
113 ft
·
5 sec
·
Church Street
50
Arrive at destination
Church Street
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 81.7 miles from City of Portland, ME, or about 1h 59m into the drive.
The longest continuous stretch on this route runs about 46.3 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 80 miles or 1h 57m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 81.7 miles or 1h 59m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 6m
Traffic, exits, and arrival timing usually matter more near Stonington, ME than in the middle of the route.
Before You Leave
+
Open the route before leaving City of Portland, ME so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from City of Portland, ME
This is one driving day of about 163.5 miles and 3h 59m.
Your first comfortable stop window is around 80 miles from City of Portland, ME.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 295 for about 46.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 81.7 mi from City of Portland, ME · 1h 59m into the drive
Mid-route town
Meal stop
82 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 80 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 81.7 miles from City of Portland, ME, which is a good place for a longer meal and fuel stop.
Arriving in Stonington, ME
The final approach into Stonington, ME usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Stonington, ME.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$26.32 one way
$52.64 round trip
$4.09/gal
25.4 MPG avg
57 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.50 | $28.96 | $57.92 |
| premium | $4.86 | $31.31 | $62.62 |
| diesel | $5.61 | $36.10 | $72.20 |
Estimated Tolls: $0.59
Maine Turnpike
(9.8 mi)
$0.59
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$26
Tolls
$1
Meals
$25–$50
Total
$52–$77
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 57.2 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $17 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 49.1 | 0 | $17.17 | $7.85 |
| Efficient EV | 40.9 | 0 | $14.31 | $6.54 |
| EV Truck/SUV | 65.4 | 0 | $22.89 | $10.46 |
Gas CO2
57 kg
EV CO2
19 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Stonington, ME
Late night in Stonington on Wednesday
Local time
5:56 AM
EDT
Current temp
51°F
Unavailable
Live forecast
46°F
Brunswick, ME
82 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
8 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
3h 59m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from City of Portland, ME to Stonington, ME covers 163.5 miles and takes about 3h 59m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 295, Route 3, Maine Turnpike. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 81.7 miles from City of Portland, ME. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $26.32 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This is a demanding drive. With 18 significant decision points across 163.5 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 1 miles (Welch Street): Complex interchange - multiple decisions in a short stretch; at 5 miles (I 295; US 1): Merge point - match speed before joining. Lane positioning matters here; at 61 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
On the drive from City of Portland, ME to Stonington, ME, road signs begin pointing toward Belfast along the way.
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