Trip from Sanford, ME to Southwest Harbor, ME

Drive Time

4h 5m

Distance

193.5 mi

311 km

Drive Score

9/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$31

one way

EV Charging

None

0 DC fast

Best Time to Leave

Save up to 39 min

4 AM

3h 53m ★

6 AM

4h 6m

8 AM

4h 32m

10 AM

4h 15m

12 PM

4h 12m

3 PM

4h 16m

5 PM

4h 31m

8 PM

3h 58m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly

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Sanford, ME

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Trip Overview

The drive from Sanford, ME to Southwest Harbor, ME covers 193.5 miles and takes about 4h 5m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on I 295, Maine Turnpike, Route 3 for much of the mileage, and the overall profile is mixed drive. The longest uninterrupted segment is about 52.5 miles on I 295. At current regular gas prices, budget about $30.98 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is possible, but it will make for a full day on the road.

Break Rhythm

1 planned break

Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

Midpoint

96.7 miles from Sanford, ME

A natural place for your longest stop of the day , about 1h 57m into the drive .

Drive Character

The drive from Sanford, ME to Southwest Harbor, ME covers 193.5 miles and takes about 4h 5m, 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 43 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 52.5 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 15.5 miles in.

Route Complexity 9/10

High effort - long or complex enough to need steady focus all day

This is a demanding drive. With 17 significant decision points across 193.5 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 15.5 miles: Highway fork - watch signs carefully. Multiple destination signs - pick the right one; at 28 miles (I 295): Highway fork - watch signs carefully. Lane positioning matters here; at 90.2 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.

Critical Maneuvers

5 of 17 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

15.5 mi into trip | ~22m in

Keep slight right at fork toward I 95 North Toll: Portland, Augusta

Highway fork - watch signs carefully. Multiple destination signs - pick the right one

Toward I 95 North Toll: Portland, Augusta

28 mi into trip | ~35m in | I 295

Keep slight right at fork onto I 295 toward Downtown Portland

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight right lane. Exit 44 Toward Downtown Portland

90.2 mi into trip | ~1h 48m 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

90.4 mi into trip | ~1h 48m in

Keep slight right at fork

Highway fork - watch signs carefully

90.6 mi into trip | ~1h 48m 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 Along This Route

Between Sanford, ME and Southwest Harbor, ME, road signs point toward Augusta, Portland and Belfast.

Augusta

15.5 mi in | ~22m

Portland

28 mi in | ~35m | via I 295

Belfast

90.2 mi in | ~1h 48m

Main Roads

Road	Distance	Duration
I 295	52.5 mi	1h 1m
Maine Turnpike	22 mi	23m
Route 3	17.6 mi	21m
Acadia Highway	13.4 mi	15m
Bucksport Road	8.5 mi	9m
Alfred Road	8.2 mi	9m
North Belfast Avenue	8.1 mi	11m
West Main Street	7.2 mi	8m

Longest stretch: I 295 — 52.5 mi, about 1h 1m

Turn-by-Turn Driving Directions

Step-by-step road directions between Sanford, ME and Southwest Harbor, ME.

Start on the route

89 ft · 8 sec · the route

Turn right onto Washington Street

0.1 mi · 23 sec · Washington Street

Continue on River Street

0.2 mi · 26 sec · River Street

Turn right onto Cottage Street

1.2 mi · 3 min · Cottage Street

Continue on Sanford Road

2.4 mi · 3 min · Sanford Road

Continue on Biddeford Road

1.8 mi · 2 min · Biddeford Road

Continue on Alfred Road

8.2 mi · 9 min · Alfred Road

Continue on Alfred Street

1.4 mi · 1 min · Alfred Street

Take the ramp left

0.1 mi · 1 min

Keep slight right to continue on I 95 North Toll: Portland, Augusta

0.2 mi · 33 sec · I 95 North Toll: Portland, Augusta

Merge slight left onto Maine Turnpike

12 mi · 13 min · Maine Turnpike

Keep slight right to continue on Downtown Portland

52 mi · 1 hr 1 min · Downtown Portland

Merge slight left onto Maine Turnpike

9.8 mi · 10 min · Maine Turnpike

Take the exit slight right toward ME 3: Augusta, Belfast

0.1 mi · 26 sec · ME 3: Augusta, Belfast

Keep slight right

0.2 mi · 20 sec

Merge slight left onto Augusta Bypass

2.5 mi · 3 min · Augusta Bypass

Continue on North Belfast Avenue

8.1 mi · 11 min · North Belfast Avenue

Continue on Belfast Road

0.2 mi · 17 sec · Belfast Road

Continue on Route 3

18 mi · 21 min · Route 3

Continue on Acadia Highway

4.0 mi · 4 min · Acadia Highway

Continue on Belfast Augusta Road West

3.4 mi · 3 min · Belfast Augusta Road West

Continue on Augusta Road

4.8 mi · 5 min · Augusta Road

Continue on Belmont Avenue

4.0 mi · 4 min · Belmont Avenue

Take the exit left

0.3 mi · 44 sec

Merge slight left onto Route 1

0.7 mi · 1 min · Route 1

Continue on Searsport Avenue

2.7 mi · 4 min · Searsport Avenue

Continue on West Main Street

7.0 mi · 8 min · West Main Street

Keep slight right to continue on East Main Street

6.3 mi · 7 min · East Main Street

Continue on US Highway 1

1.2 mi · 2 min · US Highway 1

Continue on Route 1

509 ft · 12 sec · Route 1

Continue on Route 1

1.0 mi · 1 min · Route 1

Continue on Acadia Highway

9.4 mi · 10 min · Acadia Highway

Continue on Bucksport Road

8.5 mi · 9 min · Bucksport Road

Continue on West Main Street

0.2 mi · 17 sec · West Main Street

Turn right onto Water Street

0.8 mi · 1 min · Water Street

Continue on Bayside Road

1.0 mi · 1 min · Bayside Road

Turn left onto Beechland Road

1.0 mi · 1 min · Beechland Road

Turn right onto High Street

0.7 mi · 1 min · High Street

Continue on Bar Harbor Road

6.7 mi · 11 min · Bar Harbor Road

Turn slight right onto State Highway 102

3.7 mi · 5 min · State Highway 102

Continue on Main Street

7.0 mi · 10 min · Main Street

Turn left onto Clark Point Road

236 ft · 6 sec · Clark Point Road

Arrive at your destination

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 96.7 miles from Sanford, ME, or about 1h 57m into the drive.

The longest continuous stretch on this route runs about 52.5 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 36m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 96.7 miles or 1h 57m 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 15m

Traffic, exits, and arrival timing usually matter more near Southwest Harbor, ME than in the middle of the route.

Before You Leave

Open the route before leaving Sanford, 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 Sanford, ME

This is one driving day of about 193.5 miles and 4h 5m.

Your first comfortable stop window is around 80 miles from Sanford, 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 52.5 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 96.7 mi from Sanford, ME · 1h 57m into the drive

Mid-route town

Meal stop

Brunswick, ME

97 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

Brunswick, ME

Fuel and coffee

A short stop after about 80 miles helps settle the day before fatigue starts building.

Brunswick, ME

Meal break

The midpoint is around 96.7 miles from Sanford, ME, which is a good place for a longer meal and fuel stop.

Arriving in Southwest Harbor, ME

The final approach into Southwest Harbor, 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 Southwest Harbor, ME.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

National Parks Near This Route

Worth a detour if your schedule allows.

Acadia National Park

National Park

Acadia National Park protects the natural beauty of the highest rocky headlands along the Atlantic coastline of the United States, an abundance of habitats, and a rich cultural heritage. At 4 million...

5 mi from route ~12 min detour $6 near mile 186.8

Park Closure: Cadillac Summit Road Closed for Construction

Park Closure: Park Loop Road to Kebo Street Closed for Construction

View on nps.gov

Frances Perkins National Monument

National Monument

Known as the first woman to hold a presidential cabinet position and the “Woman behind the New Deal,” Frances Perkins championed many labor rights that Americans enjoy today, including safety standard...

17 mi from route ~42 min detour Free near mile 73.4

View on nps.gov

Park data from the National Park Service API. Alerts update every 2 hours.

Fuel & Cost

Regular Gas

$30.98 one way

$61.95 round trip

$4.07/gal 25.4 MPG avg 68 kg CO₂

Fuel Type	$/gal	One Way	Round Trip
midgrade	$4.46	$33.95	$67.91
premium	$4.83	$36.78	$73.56
diesel	$5.64	$42.99	$85.98

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$31

Meals

$25–$50

Total

$56–$81

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 67.7 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $20 in charging · 0 stops · 66% less CO₂

Vehicle Type	kWh	DC Fast	Home Charge
Average EV	58.1	$20.32	$9.29
Efficient EV	48.4	$16.93	$7.74
EV Truck/SUV	77.4	$27.09	$12.38

Gas CO2

68 kg

EV CO2

23 kg (66% 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.

Forecast data refreshed 1 hour ago

Origin

Sanford, ME

Late night in Sanford on Monday

Local time

5:14 AM

EDT

Current temp

40°F

Light Rain

S 10 mph 83% chance Live forecast

Destination

Southwest Harbor, ME

Late night in Southwest Harbor on Monday

Local time

5:14 AM

EDT

Current temp

37°F

Rain Likely

SW 10 mph 74% chance Live forecast

Along the Route

43°F

Brunswick, ME

97 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

3 degrees cooler at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

4h 5m on the road

An early start around 7-8 AM gets you there with plenty of daylight left.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Sanford, ME to Southwest Harbor, ME covers 193.5 miles and takes about 4h 5m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are I 295, Maine Turnpike, Route 3. Expect a mix of highway and local road driving.

This is a comfortable same-day trip.

The midpoint is about 96.7 miles from Sanford, ME. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $30.98 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. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

Between Sanford, ME and Southwest Harbor, ME, road signs point toward Augusta, Portland and Belfast.

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