North From Boston:

Take I-95 North
Merge onto I295 North, via Exit 44, toward Downtown Portland
Take Exit 4, Portland Waterfront
While crossing the bridge, merge to the left lane
At the first light, drive through the intersection, then merge one lane to the left
(There are two left-turning lanes; you'll need to be in the in the one on the right)
At the next light, turn left onto Valley Street (unmarked)
At the next light, turn right onto Danforth Street
At the first stop sign, turn left onto Vaughn Street
Follow Vaughan Street proceeding to the next blinking light (at West Street). Turn right onto West Street and go to the second street and turn left onto Carleton Street which is a one way street. The Carleton Inn is on the left at the corner of Carleton and West Streets our street address number is 46 Carleton Street. Welcome to the Inn On Carleton.

South From Bangor:

Take I-95 South to Portland/I-295 South. Take Exit 6A off I-295 South. Follow 77 South (State Street) up the hill to Congress Street. At the top of the hill, you will see the Longfellow monument. Cross Congress Street and make an immediate right onto Pine Street just before the Frame Shop. Follow Pine Street 2 blocks and bear right onto West Street. Carleton Street is the first right off West. The Inn is the first house on the left (#46).

From the Portland International Jetport:

Follow the airport access road out of the airport to Congress Street, Route 22. Turn right onto Congress Street and continue on Congress until you reach Bramhall Street. (Bramhall Street is on the right at the top of the Congress Street hill. The Maine Medical Center will be on your right.) At the traffic light, turn right onto Bramhall Street. At the fork in the road, bear left onto Vaughn Street. Go to the flashing red light. Turn left onto West Street. Carleton Street is the 3rd left off West Street. The Inn is the first house on the left (#46).