The Best Business Hotels in Great Diamond Island, ME from NT$3,975 in 2026

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Our top choices for Great Diamond Island business-friendly hotels

An outdoor patio area with wicker furniture, string lights, and a barbecue grill.

A brick building with a large entrance and a sign that reads "Residence Inn Marriott".

A swimming pool with a tiled deck, lounge chairs, and a ceiling with recessed lighting.

A bar area with stools, a counter, and a herringbone-patterned wall.

1. Residence Inn by Marriott Portland Downtown/Waterfront

Downtown Portland

Tim

NT$5,367

NT$5,938 total

includes taxes & fees

Oct 25 - Oct 26

A modern bar area with a wooden bar counter, black bar stools, and a contemporary light fixture.

A hotel room with a large bed, a sofa, a small table, and a bench. There is a window with a view of the water.

A black SUV parked in front of AC Hotel Portland, a modern building with a brick facade and large windows.

A modern reception area with a central desk, seating arrangements, and large windows offering views of the cityscape.

2. AC Hotel Portland Downtown/Waterfront, ME

Downtown Portland

Paul

NT$6,960

NT$7,700 total

includes taxes & fees

Oct 29 - Oct 30

A fire pit surrounded by wicker chairs in a garden setting.

A living room with a fireplace, seating area, and a large window.

A hotel room with a large bed, two bedside tables, a chair, a window with curtains, and a view of the city.

A spacious living area with large windows, a staircase, and modern furniture.

3. Portland Harbor Hotel

Downtown Portland

Teresa

NT$6,925

NT$8,874 total

includes taxes & fees

Oct 25 - Oct 26

A rooftop terrace with a modern outdoor seating area, a fire pit, and a view of the cityscape.

A modern living room with a sofa, armchairs, a coffee table, and a rug.

A modern bar area with a long counter, multiple stools, and a variety of bottles and glasses on shelves.

A modern lobby with a geometric wall design, seating area, and a large abstract artwork.

4. Cambria Hotel Portland Downtown-Old Port

Downtown Portland

Rebecca

NT$5,309

NT$6,740 total

includes taxes & fees

Oct 25 - Oct 26

A brick building with a sign reading "WAYPOINT" and outdoor seating with tables, chairs, and a fire pit.

A spacious lobby with multiple seating areas, a fireplace, and large windows.

A hotel room with two beds, a stone-patterned wall, and a nightstand with a lamp.

A chef in a black uniform and white hat, holding a ladle and a bowl, with various dishes in front of him.

5. Embassy Suites by Hilton Portland Maine

Portland

Andrew

NT$5,461

NT$6,042 total

includes taxes & fees

Oct 29 - Oct 30

A balcony with wooden flooring, striped cushioned chairs, and a glass railing overlooking a cityscape at night.

A modern hotel with a dark facade, multiple windows, and a visible sign for 'Hyatt Place'.

A bar area with a black countertop, blue bar stools, and a variety of bottles and glasses.

A modern hotel room with a large bed, a desk, and a TV.

6. Hyatt Place Portland Downtown - Old Port Square

Downtown Portland

Jeetindra

NT$4,672

NT$5,169 total

includes taxes & fees

Oct 29 - Oct 30

A multi-story hotel with a prominent entrance, large windows, and a well-lit facade.

A living room with a sofa, a small table, and a window with a view of a bridge and buildings.

A reception desk with a "Welcome to the Lobster State" sign, a "Hilton Honors" sign, and a digital screen.

A modern lounge area with a fireplace, seating, and a large window.

7. Hampton Inn Portland Downtown - Waterfront

Downtown Portland

Amy

NT$5,288

NT$5,851 total

includes taxes & fees

Oct 26 - Oct 27

A waterfront marina with boats docked, buildings with multiple windows, and a red building with a visible restaurant.

A spacious lobby with a high ceiling, large chandeliers, and a mix of seating areas including sofas and armchairs.

A hotel lobby with a bar area, seating arrangements, and a fireplace.

A large indoor swimming pool with clear water, tiled flooring, and a seating area with chairs and a plant.

8. Hilton Garden Inn Portland Downtown Waterfront

Downtown Portland

Jenna

NT$5,842

NT$6,464 total

includes taxes & fees

Oct 30 - Oct 31

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Top Great Diamond Island Hotel Reviews

Clarion Hotel Portland Airport ME

8/10 Good

"Fine place, but their breakfast isn’t included, and is, in fact, a separate entity."

Comfort Inn South Portland Airport

10/10 Excellent

"Very nice hotel with nice comfy beds"

Spark by Hilton Portland Airport Maine Mall

10/10 Excellent

"A+"

Clarion Pointe South Portland

10/10 Excellent

"Awesome hotel"

Fireside Inn & Suites Portland

8/10 Good

"The hotel has a 'tired' feel to it i.e it needs a lick of paint to brighten it up and, the pool area needs better attention ref cleaning but apart from that its in a great location for transiting through and access to Portland"

Portland Harbor Hotel

10/10 Excellent

"We absolutely loved this hotel. The location was perfect for our ladies trip. The staff were beyond helpful!!! And the rooms were very well maintained. thank you very much….."

La Quinta Inn & Suites by Wyndham Portland DT/Maine Med

8/10 Good

"Room was clean. Breakfast was minimal but ok. Had to pay $10 for parking which seemed unreasonable."

Inn at St John Portland In-Town

10/10 Excellent

"Friendly staff, large quiet room in a good location. Free parking lot and lots of free street parking nearby as well"

Hampton Inn Portland Downtown - Waterfront

10/10 Excellent

"The water pressure wasn’t the best and the pillows were pretty soft but other than that, it was a nice stay"

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Our top choices for Great Diamond Island business-friendly hotels

1. Residence Inn by Marriott Portland Downtown/Waterfront