How far is Brunswick, ME from Southwest Harbor, ME?

The driving distance from Brunswick, ME to Southwest Harbor, ME is about 136.7 miles (220 km), with a travel time of about 02h 59m by car.

  • The straight-line flight distance is about 85.2 miles (137.1 km).
  • For a round trip, plan for roughly 05h 58m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
136.68 mi
02h 59m
Flight
85.21 mi
137.14 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Brunswick.

Flight Distance

Direct air line
85.21 mi
Kilometers
137.14 km
Flight Time
00h 10m

Driving Distance

Road route
136.68 mi
Kilometers
219.97 km
Drive Time
02h 59m

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 02h 59m.

Arrival Snapshot
Arrive in Southwest Harbor
Fri, Oct 23, 11:23 AM EDT
Return by in Brunswick
Fri, Oct 23, 2:23 PM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Brunswick
2026-10-23T08:24
Arrive Southwest Harbor
Fri, Oct 23, 11:23 AM EDT
Route Timing
02h 59m
One way by road
Best Departure Window
8:00 AM to 10:00 AM EDT
Aim for a morning departure
Arrive between
10:59 AM to 12:59 PM EDT

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
12:32 PM EDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Brunswick
9:30 PM EDT
Morning start is best

This departure sits inside the recommended comfort window for the route.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Searsmont
ME

City in United States of America

From Brunswick
68.2 mi
01h 29m
To Southwest Harbor
68.5 mi
01h 29m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
52°F
Friday

Sunny

Starts
Fri, Oct 23 6:00 AM EDT
Wind
10 to 15 mph N
Destination
Southwest Harbor Weather
ME
Live fallback forecast
50°F
Friday
Using Blue Hill as the closest live forecast in the Hancock County weather hub.

Sunny

Starts
Fri, Oct 23 6:00 AM EDT
Wind
13 to 21 mph N

Driving Route Map

The map below follows the saved road route between Brunswick and Southwest Harbor.

Turn-by-Turn Driving Directions

Step-by-step road directions between Brunswick and Southwest Harbor.

  1. 1

    Start on Pleasant Street

    49 m · 13 sec · Pleasant Street

  2. 2

    Turn left onto Maine Street

    2355 ft · 2 min · Maine Street

  3. 3

    Continue on Main Street

    1.2 mi · 3 min · Main Street

  4. 4

    Turn left onto Route 196

    823 ft · 29 sec · Route 196

  5. 5

    Continue on Lewiston Road

    2276 ft · 1 min · Lewiston Road

  6. 6

    Take the exit slight right toward I 295 North: Augusta

    1973 ft · 49 sec

  7. 7

    Merge slight left

    21.1 mi · 23 min

  8. 8

    Merge slight left onto Maine Turnpike

    9.8 mi · 11 min · Maine Turnpike

  9. 9

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

    767 ft · 26 sec

  10. 10

    Keep slight right

    834 ft · 20 sec

  11. 11

    Merge slight left onto Augusta Bypass

    2.5 mi · 4 min · Augusta Bypass

  12. 12

    Continue on North Belfast Avenue

    8.1 mi · 12 min · North Belfast Avenue

  13. 13

    Continue on Belfast Road

    1077 ft · 17 sec · Belfast Road

  14. 14

    Continue on Route 3

    17.6 mi · 21 min · Route 3

  15. 15

    Continue on Acadia Highway

    4 mi · 4 min · Acadia Highway

  16. 16

    Continue on Belfast Augusta Road West

    3.4 mi · 4 min · Belfast Augusta Road West

  17. 17

    Continue on Augusta Road

    4.8 mi · 5 min · Augusta Road

  18. 18

    Continue on Belmont Avenue

    4 mi · 5 min · Belmont Avenue

  19. 19

    Take the exit left

    1586 ft · 44 sec

  20. 20

    Merge slight left onto Route 1

    1.1 km · 1 min · Route 1

  21. 21

    Continue on Searsport Avenue

    2.7 mi · 5 min · Searsport Avenue

  22. 22

    Continue on West Main Street

    7 mi · 8 min · West Main Street

  23. 23

    Keep slight right to continue on East Main Street

    6.3 mi · 8 min · East Main Street

  24. 24

    Continue on US Highway 1

    1.2 mi · 3 min · US Highway 1

  25. 25

    Continue on Route 1

    155 m · 12 sec · Route 1

  26. 26

    Continue on Route 1

    1 mi · 1 min · Route 1

  27. 27

    Continue on Acadia Highway

    9.4 mi · 11 min · Acadia Highway

  28. 28

    Continue on Bucksport Road

    8.5 mi · 10 min · Bucksport Road

  29. 29

    Continue on West Main Street

    1116 ft · 17 sec · West Main Street

  30. 30

    Turn right onto Water Street

    1.3 km · 1 min · Water Street

  31. 31

    Continue on Bayside Road

    1 mi · 2 min · Bayside Road

  32. 32

    Turn left onto Beechland Road

    1 mi · 2 min · Beechland Road

  33. 33

    Turn right onto High Street

    1.1 km · 1 min · High Street

  34. 34

    Continue on Bar Harbor Road

    6.7 mi · 12 min · Bar Harbor Road

  35. 35

    Turn slight right onto State Highway 102

    3.7 mi · 6 min · State Highway 102

  36. 36

    Continue on Main Street

    7 mi · 10 min · Main Street

  37. 37

    Turn left onto Clark Point Road

    72 m · 6 sec · Clark Point Road

  38. 38

    Arrive at your destination

    0 m · 1 sec · Clark Point Road

Car Route Details

A richer read on the saved driving route between Brunswick and Southwest Harbor.

OSRM road route
Drive Character

Interchange-aware route

The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.

Directions
38 steps
8 turns on the saved route
Ramps & Exits
7
4 merges, 3 ramps or exits
Navigation Density
27.8 / 100 mi
Decision points by distance
Main Roads
I 295 North
21.4 mi · 16%
Route 3
17.6 mi · 13%
Acadia Highway
13.4 mi · 10%
Maine Turnpike
9.8 mi · 7%
Bucksport Road
8.5 mi · 6%
Main Street
8.13 mi · 6%
Longest Stretch

I 295 North

Merge slight left

21.1 mi · 00h 23m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
02h 59m
Day trip friendly
Same-Day Return
05h 58m
Round-trip wheel time
Road vs Air
+51.5 mi
85.2 mi direct line
Halfway Stop
Searsmont
01h 29m from Brunswick
Leave By
12:32 PM EDT
Morning start is best
Weather Watch

Sunny leaving Brunswick and Sunny near Southwest Harbor.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Brunswick to Southwest Harbor?

The road trip is about 136.7 miles (220 km) and usually takes 02h 59m 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?

Searsmont is a useful midpoint, sitting about 68.2 miles from Brunswick and 68.5 miles from Southwest Harbor.

How much longer is the road route than the straight-line distance?

The direct path is about 85.2 miles (137.1 km), while the road route adds roughly 51.5 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 12:32 PM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $20.87 one way or $41.73 round trip. Estimated CO2 is about 42.8 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Brunswick and Sunny near Southwest Harbor.

Stop Ideas Near Searsmont

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Searsmont, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Searsmont.

BUS

Belfast, Maine

15 mi away
Belmont Ave & US Hwy 1
BUS

Lincolnville, Maine

17 mi away
2512 Atlantic Highway
BUS

Camden/Rockport, Maine

20 mi away
234 Park St.
BUS

Searsport, Maine

25 mi away
161 East Main St.

Flight Path Map

This map shows the direct air route between Brunswick and Southwest Harbor. Straight-line distance: 85.21 mi (137.14 km).

Brunswick

#1 Brunswick

Town in Cumberland County, Maine, US

Population20,619
Coordinates43.9145200, -69.9653300
Altitude19
CountryUnited States
Southwest Harbor

#2 Southwest Harbor

City in Hancock County, Maine, United States of America

Population1,793
Coordinates44.2798000, -68.3250200
Altitude13
CountryUnited States
Start: Brunswick (-69.96533, 43.91452)
End: Southwest Harbor (-68.32502, 44.2798)

Estimated Travel Time

Distance: 220 km by road

SpeedTime
30 mph (48.3 km/h)04h 33m
40 mph (64.37 km/h)03h 25m
50 mph (80.47 km/h)02h 44m
60 mph (96.56 km/h)02h 16m
70 mph (112.65 km/h)01h 57m
80 mph (129 km/h)01h 42m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
4.82 gal
18.26 L · about $20.87
Round trip
$41.73
9.64 gal · 36.52 L
Estimated CO2
42.8 kg one way
Round trip: 85.7 kg / 189 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.33 $20.87 $41.73
Mid-grade $4.89 $23.58 $47.16
Premium $5.36 $25.84 $51.67
Diesel $6.43 $30.99 $61.98

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 · Oct 22, 2026

There is no time difference between Brunswick and Southwest Harbor. The current time is 08:24:22.

Distance to Other Cities

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.