Great Diamond Island Vacations

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Great Diamond Island Hotel Deals

The Westin Portland Harborview

The Westin Portland Harborview

4 out of 5
157 High St Portland ME
Fully refundableReserve now, pay when you stay
The price is ￥20,680 per night from Apr 26 to Apr 27
￥20,680
￥22,880 total
Apr 26 - Apr 27
includes taxes & fees
8.8/10 Excellent! (1,003 reviews)
Breakfast was really good, free shuttle to town helped, the only problem was the bad was too small, but the rest was really good.

Reviewed on Mar 29, 2026

The Westin Portland Harborview
Clarion Hotel Portland Airport ME

Clarion Hotel Portland Airport ME

2.5 out of 5
1230 Congress St Portland ME
Fully refundable
The price is ￥12,536 per night from Apr 15 to Apr 16
￥12,536
￥13,869 total
Apr 15 - Apr 16
includes taxes & fees
8/10 Very Good! (1,406 reviews)
I found a clump of hair between the sheets. The curtains were torn/falling apart in room 505.

Reviewed on Mar 29, 2026

Clarion Hotel Portland Airport ME
Portland Harbor Hotel

Portland Harbor Hotel

4 out of 5
468 Fore Street Portland ME
Fully refundableReserve now, pay when you stay
The price is ￥18,273 per night from Apr 5 to Apr 6
￥18,273
￥26,333 total
Apr 5 - Apr 6
includes taxes & fees
9.2/10 Wonderful! (1,763 reviews)
We paid a little extra for a room with a Courtyard view. What we got was a 2nd floor room as far as possible from the elevator and when I pulled back the curtains I was looking at a giant kitchen exhaust fan that gave us a constant deep buzz in the room. The hotel did not seem busy and this room ...

Reviewed on Mar 27, 2026

Portland Harbor Hotel
See all 2,342 properties in Great Diamond Island
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Discover the most popular places to visit in Great Diamond Island

Eastern Promenade

Eastern Promenade

Built on an old rail corridor along the easternmost portion of Portland’s peninsula, this waterfront trail offers stunning views of the harbor and Atlantic Ocean.

Eastern Promenade

Children's Museum and Theatre of Maine

You can take time to visit Children's Museum and Theatre of Maine during your travels to Portland. Experience the area's entertainment choices and acclaimed theater scene.

Children's Museum and Theatre of Maine

What to do in Great Diamond Island

Ultimate Portland Self-Guided Driving GPS Audio Tour

Ultimate Portland Self-Guided Driving GPS Audio Tour

￥2,649
per traveler
100% of travellers recommend
Ultimate Portland Self-Guided Driving GPS Audio Tour
Downtown Portland: Coastal Vibe and Old Mansions with In-Add Audio Tour

Downtown Portland: Coastal Vibe and Old Mansions with In-Add Audio Tour

￥1,561
per traveler
Downtown Portland: Coastal Vibe and Old Mansions with In-Add Audio Tour
Portland Self-Guided Driving Audio Tour

Portland Smartphone Audio Tour: Self-Guided Drive

￥2,649
per traveler
Portland Smartphone Audio Tour: Self-Guided Drive
See all activities in Great Diamond Island

Frequently asked questions

Can I cancel my flight booking to Great Diamond Island due to COVID-19?
If you've yet to book your tickets, scan the terms and conditions of your preferred airline. If you've already locked in your flight to Great Diamond Island, visit our Customer Service Portal. The information here will help you work out which COVID-19 policies are applicable to your reservation and advise the next steps.
What's the best way to find cheap flights to Great Diamond Island that have flexible change policies?
By using our neat "No change fee" filter, that's how. Just type in your travel dates, click "Search," then tick the checkbox under the "Flexible change policies" heading (it's on the top left of your screen). Expedia makes it a cinch to find flexible, low-priced tickets to Great Diamond Island.
What are some of the general tips for travelers to Great Diamond Island during the COVID-19 outbreak?
As a result of COVID-19, traveling today comes with more challenges. Have a read over these valuable tips before jumping on your flight to Great Diamond Island:
  • Before you lock in a flight, see if any travel restrictions apply — in both your destination and origin. Keep informed with the latest updates by checking government travel advisories.
  • Wear a face mask even during airport screening. A TSA employee will ask you to temporarily lower your mask for identification purposes.
  • Avoid handing your boarding pass directly to a TSA employee. Rather, you should position the pass on the reader and then hold it up for inspection.
  • TSA is now allowing passengers to take one container of hand sanitizer, up to 12 oz (350 ml) in size, in carry-on luggage. This will have to be removed from your bag and presented for screening.
  • To minimize handling during screening, place personal items such as your phone, coins and keys into your carry-on rather than into the bins.
  • Transport your food items in a clear plastic bag and also put them in a screening bin. Keeping food separate from your carry-on makes it less likely that a TSA agent will need to open your bag for inspection.

Which airlines fly to Great Diamond Island?
Southwest Airlines operates flights into or near Great Diamond Island, including 182 that touch down at Portland Intl. Jetport Airport (PWM) each month. Pick your vacation dates and then book your seat early for an unbeatable deal.
How can I find cheap tickets to Great Diamond Island?
One of the easiest ways to score cheap tickets to Great Diamond Island is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. It'll bring up the cheapest prices for nearby days. The best price for a flight to Great Diamond Island in the last seven days was . Booking ahead of time will usually help you pick up an even bigger bargain.
How much is a flight to Great Diamond Island?
One-way flights departing from () sold for just in the last seven days. During this time, the cost of a return ticket to Great Diamond Island varied between and . If you spot a bargain ticket, book ASAP — these fares don't wait around for long.
What are the most popular airports to fly into in Great Diamond Island?
Start arranging your Great Diamond Island adventure by reserving a seat on one of the 1571 flights every month to Portland Intl. Jetport Airport (PWM). This is the region's main point of entry.
When is the cheapest time to fly to Great Diamond Island?
Take off to Great Diamond Island early on in the week and you'll usually be rewarded with lower-cost fares. Tuesday is known for being the cheapest day to hop on a plane, closely followed by Monday. If you're eager to avoid the priciest flights, give Saturdays a wide berth.
How much is a plane ticket to Great Diamond Island?
In the last seven days, ticket prices to Great Diamond Island ranged from to .
Which airlines with flights to Great Diamond Island employ COVID-19 cleanliness policies?
In response to the global COVID-19 pandemic, many airlines have adopted additional actions and measures to help travelers get back in the skies. These carriers include:
  • American Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • United Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • Delta - this airline is known for electrostatic cleaning and cleaning with disinfectant.

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* Savings based on package bookings compared to the price of the same components booked separately. Savings not available on all packages.